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DSPU and SNA Service Point Commands
dspu enable-host (Token Ring, Ethernet, FDDI, Frame Relay)
dspu enable-pu (Ethernet, Frame Relay, Token Ring, FDDI)
dspu host (Token Ring, Ethernet, FDDI, RSRB, VDLC)
dspu pu (Token Ring, Ethernet, FDDI, RSRB, VDLC, NCIA)
sna enable-host (Token Ring, Ethernet, Frame Relay, FDDI)
sna host (Token Ring, Ethernet, FDDI, RSRB, VDLC)
DSPU and SNA Service Point Commands
This chapter describes the commands you use to configure the downstream physical unit (DSPU) feature, which provides a gateway facility for downstream Systems Network Architecture (SNA) physical units (PUs), and SNA Service Point support. For DSPU and SNA Service Point configuration tasks and examples, refer to the "Configuring DSPU and SNA Service Point Support" chapter of the Cisco IOS Bridging and IBM Networking Configuration Guide.
dspu activation-window
To define the number of activation request units (RUs) and response messages (such as ACTLUs or DDDLU NMVTs) that can be sent without waiting for responses from the remote PU, use the dspu activation-window global configuration command. To restore the default window size, use the no form of this command.
dspu activation-window window-size
no dspu activation-window
Syntax Description
Defaults
The default window size is 5 outstanding unacknowledged activation RUs.
Command Modes
Global configuration
Command History
Usage Guidelines
You do not typically need to define the number of activation RUs, but doing so can enhance activation performance in some situations. Increasing the DSPU activation window allows more LUs to become active in a shorter amount of time (assuming the required buffers for activation RUs are available). Conversely, decreasing the DSPU activation window limits the amount of buffers the DSPU can use during PU/LU activation. This command provides pacing to avoid depleting the buffer pool during PU activation.
Examples
In the following example, the DSPU activation window is configured to 10. The DSPU can send up to 10 activation RUs without a response from the remote PU. However, the DSPU cannot send any additional activation RUs until a response is received. The DSPU can only have 10 activation RUs awaiting response at any given time.
dspu activation-window 10dspu default-pu
To enable the default PU feature to be used when a downstream PU attempts to connect, but does not match any of the explicit PU definitions, use the dspu default-pu global configuration command. To disable the default PU feature, use the no form of this command.
dspu default-pu [window window-size] [maxiframe max-iframe]
no dspu default-pu [window window-size] [maxiframe max-iframe]
Syntax Description
Defaults
The default window size is 7.
The default maximum I-frame size is 1472.
Command Modes
Global configuration
Command History
Usage Guidelines
If the DSPU default PU is not defined, a connection attempt by a downstream PU that does not match any explicit PU definition is rejected.
The dspu default-pu command must be followed by at least one dspu lu command to define which pool the default LUs will be assigned from. Default LUs cannot be defined as dedicated LUs from a host.
The maximum I-frame size includes the SNA transmission header (TH), request header (RH), and request unit (RU), but does not include the DLC header. The DSPU feature segments frames being sent to fit within this frame size. If an XID is received from a remote PU which indicates that it supports a different maximum I-frame size, then the smaller of the two values is used.
Examples
In the following example, the default PU feature is enabled with a window size of 5 and a maximum I-frame size of 128. Each default PU can have up to 3 LUs assigned from the hostpool pool of LUs.
dspu pool hostpool host ibm3745 lu 2 254dspu default-pu window 5 maxiframe 128dspu lu 2 4 pool hostpoolRelated Commands
Defines a dedicated LU or a range of LUs for an upstream host and a downstream PU.
Defines a range of host LUs in an LU pool.
dspu enable-host (Token Ring, Ethernet, FDDI, Frame Relay)
To enable a local SAP on Token Ring, Ethernet, FDDI, or Frame Relay interfaces for use by upstream hosts, use the dspu enable-host interface configuration command. To cancel the definition, use the no form of this command.
dspu enable-host [lsap local-sap]
no dspu enable-host [lsap local-sap]
Syntax Description
Defaults
The default local SAP address is 12.
Command Modes
Interface configuration
Command History
Examples
In the following example, the local SAP address 10 on Token Ring interface 0 is enabled for use by upstream host connections:
interface tokenring 0dspu enable-host lsap 10Related Commands
Defines a DSPU host over a Frame Relay connection.
Defines a DSPU host over Token Ring, Ethernet, FDDI, RSRB, or VDLC connections.
dspu enable-host (QLLC)
To enable an X.121 subaddress for use by upstream host connections via QLLC, use the dspu enable-host interface configuration command. To disable the X.121 subaddress, use the no form of this command.
dspu enable-host qllc x121-subaddress
no dspu enable-host qllc x121-subaddress
Syntax Description
Defaults
No default X.121 subaddress is specified.
Command Modes
Interface configuration
Command History
Examples
In the following example, X.121 subaddress 320108 is enabled for use by upstream host connections:
interface serial 0encapsulation x35x25 address 3202x25 map qllc 320112dspu enable-host qllc 320108Related Commands
Defines a DSPU host over an X.25/QLLC connection.
x25 map qllc
Specifies the X.121 address of the remote X.25 device with which communication is planned using QLLC conversion.
dspu enable-host (SDLC)
To enable an SDLC address for use by upstream host connections, use the dspu enable-host interface configuration command. To cancel the definition, use the no form of this command.
dspu enable-host sdlc sdlc-address
no dspu enable-host sdlc sdlc-address
Syntax Description
Defaults
No default SDLC address is specified.
Command Modes
Interface configuration
Command History
Examples
In the following example, SDLC address C1 is enabled for use by upstream host connections:
interface serial 0encapsulation sdlcsdlc role secondarysdlc address c1dspu enable-host sdlc c1Related Commands
dspu enable-pu (Ethernet, Frame Relay, Token Ring, FDDI)
To enable an Ethernet, Frame Relay, Token Ring, or FDDI address for use by downstream PU connections, use the dspu enable-pu interface configuration command. To disable the connection, use the no form of this command.
dspu enable-pu [lsap local-sap]
no dspu enable-pu [lsap local-sap]
Syntax Description
lsap local-sap
(Optional) Local SAP address used by the DSPU to establish connection with the remote host. The default local SAP address is 8.
Defaults
The default local SAP address is 8.
Command Modes
Interface configuration
Command History
Examples
The following example demonstrates the configuration of a downstream PU via Token Ring and Ethernet:
interface tokenring 0ring-speed 16dspu enable-pu lsap 8interface ethernet 0dspu enable-pu lsap 8Related Commands
Defines a DSPU host over a Frame Relay connection.
Defines an explicit downstream PU over Token Ring, Ethernet, FDDI, RSRB, VDLC, or NCIA connections.
dspu enable-pu (QLLC)
To enable an X.121 subaddress for use by downstream PU connections via QLLC, use the dspu enable-pu interface configuration command. To cancel the definition, use the no form of this command.
dspu enable-pu qllc x121-subaddress
no dspu enable-pu qllc x121-subaddress
Syntax Description
qllc
Required keyword for QLLC data-link control.
x121-subaddress
Variable-length X.121 address. It is assigned by the X.25 network service provider.
Defaults
No default address is assigned.
Command Modes
Interface configuration
Command History
Examples
The following example enables an X.121 subaddress for use by downstream PU connections:
interface serial 0encapsulation x25x25 address 3201x25 map qllc 320208dspu enable-pu qllc 08Related Commands
dspu enable-pu (SDLC)
To enable an SDLC address for use by downstream PU connections, use the dspu enable-pu interface configuration command. To disable the connection, use the no form of this command.
dspu enable-pu sdlc sdlc-address
no dspu enable-pu sdlc sdlc-address
Syntax Description
Defaults
No default address is specified.
Command Modes
Interface configuration
Command History
Examples
The following example enables a DSPU downstream connection:
interface serial 0encapsulation x25sdlc role primarysdlc address c1dspu enable-pu sdlc c1Related Commands
dspu host (Frame Relay)
To define a DSPU host over a Frame Relay connection, use the dspu host global configuration command. To cancel the definition, use the no form of this command.
dspu host host-name xid-snd xid dlci dlci-number [rsap rsap-addr] [lsap lsap-addr] [interface slot/port] [window window-size] [maxiframe max-iframe] [retries retry-count] [retry-timeout retry-timeout] [focalpoint]
no dspu host host-name xid-snd xid dlci dlci-number [rsap remote-sap] [lsap local-sap] [interface slot/port] [window window-size] [maxiframe max-iframe] [retries retry-count] [retry-timeout retry-timeout] [focalpoint]
Syntax Description
Defaults
The default remote SAP is 4.
The default local SAP is 12.
The default window size is 7.
The default maximum I-frame is 1472.
The default retry count is 255.
The default retry timeout is 30 seconds.
Command Modes
Global configuration
Command History
Usage Guidelines
The local SAP address must be enabled by a dspu enable-host command.
If an XID is received from a remote PU that indicates it supports a different maximum I-frame size, then the smaller of the two values is used.
Alerts from downstream PUs will be forwarded to the focalpoint host. The focalpoint keyword must be included in no more than one dspu host command.
Examples
The following example defines a DSPU host for Frame Relay support:
dspu host rosebud xid-snd 06500001 dlci 200 rsap 4 lsap 12Related Commands
Enables a local SAP on Token Ring, Ethernet, FDDI, or Frame Relay interfaces for use by upstream hosts.
Defines a range of host LUs in an LU pool.
dspu host (QLLC)
To define a DSPU host over an X.25/QLLC connection, use the dspu host global configuration command. To delete the DSPU host definition, use the no form of this command.
dspu host host-name xid-snd xid x25 remote-x121-addr [qllc local-x121-subaddr] [interface slot/port] [window window-size] [maxiframe max-iframe] [retries retry-count] [retry-timeout retry-timeout] [focalpoint]
no dspu host host-name xid-snd xid x25 remote-x121-addr [qllc local-x121-subaddr] [interface slot/port] [window window-size] [maxiframe max-iframe] [retries retry-count] [retry-timeout retry-timeout] [focalpoint]
Syntax Description
Defaults
The default window size is 7.
The default maximum I-frame is 1472.
The default retry count is 255.
The default retry timeout is 30 seconds.
Command Modes
Global configuration
Command History
Usage Guidelines
The X.121 subaddress must be enabled by a dspu enable-host (QLLC) command.
If an XID is received from a remote PU that indicates it supports a different maximum I-frame size, then the smaller of the two values is used.
Alerts from downstream PUs will be forwarded to the focalpoint host. The focalpoint keyword must be included in no more than one dspu host command.
Examples
The following example defines a DSPU host:
dspu host hosta xid-snd 065ffff0 x25 00000123005 qllc 12Related Commands
dspu host (SDLC)
To define a DSPU host over an SDLC connection, use the dspu host global configuration command. To cancel the definition, use the no form of this command.
dspu host host-name xid-snd xid sdlc sdlc-addr [interface slot/port] [window window-size] [maxiframe max-iframe] [retries retry-count] [retry-timeout retry-timeout] [focalpoint]
no dspu host host-name xid-snd xid sdlc sdlc-addr [interface slot/port] [window window-size] [maxiframe max-iframe] [retries retry-count] [retry-timeout retry-timeout] [focalpoint]
Syntax Description
Defaults
The default window size is 7.
The default maximum I-frame is 1472.
The default number of retries is 255.
The default retry timeout is 30 seconds.
Command Modes
Global configuration
Command History
Usage Guidelines
The SDLC address must be enabled by a dspu enable-host (SDLC) command.
If an XID is received from a remote PU that indicates it supports a different maximum I-frame size, then the smaller of the two values is used.
Alerts from downstream PUs will be forwarded to the focalpoint host. The focalpoint keyword must be included in no more than one dspu host command.
Examples
The following example defines a DSPU host for SDLC:
dspu host hosta xid-snd 065ffff0 sdlc c1Related Commands
Enables an SDLC address for use by upstream host connections.
Defines a range of host LUs in an LU pool.
dspu host (Token Ring, Ethernet, FDDI, RSRB, VDLC)
To define a DSPU host over Token Ring, Ethernet, FDDI, RSRB, or virtual data-link control (VDLC) connections, use the dspu host global configuration command. To cancel the definition, use the no form of this command.
dspu host host-name xid-snd xid rmac remote-mac [rsap remote-sap] [lsap local-sap] [interface slot/port] [window window-size] [maxiframe max-iframe] [retries retry-count] [retry-timeout retry-timeout] [focalpoint]
no dspu host host-name xid-snd xid rmac remote-mac [rsap remote-sap] [lsap local-sap] [interface slot/port] [window window-size] [maxiframe max-iframe] [retries retry-count] [retry-timeout retry-timeout] [focalpoint]
Syntax Description
Defaults
The default remote SAP address is 4.
The default local SAP address is 12.
The default window size is 7.
The default maximum I-frame is 1472.
The default number of retries is 255.
The default retry timeout is 30 seconds.
Command Modes
Global configuration
Command History
Usage Guidelines
The local SAP address must be enabled by one of the following commands: dspu enable-host, dspu rsrb enable-host, or dspu vdlc enable-host.
If an XID is received from a remote PU that indicates it supports a different maximum I-frame size, then the smaller of the two values is used.
Alerts from downstream PUs will be forwarded to the focalpoint host. The focalpoint keyword must be included in no more than one dspu host command.
Examples
The following example shows the definition for a DSPU host with 252 LUs and a connection to be established across an RSRB link:
dspu rsrb 88 1 99 4000.ffff.0001dspu rsrb enable-host lsap 10dspu host ibm3745 xid 06500001 rmac 4000.3745.0001 lsap 10dspu pool hostpool lu 2 253 host ibm3745Related Commands
dspu lu
To define a dedicated LU or a range of LUs for an upstream host and a downstream PU, use the dspu lu global configuration command. To cancel the definition, use the no form of this command.
dspu lu lu-start [lu-end] {host host-name host-lu-start | pool pool-name} [pu pu-name]
no dspu lu lu-start [lu-end] {host host-name host-lu-start | pool pool-name} [pu pu-name]
Syntax Description
Defaults
No default behavior or values.
Command Modes
Global configuration
Command History
Usage Guidelines
The dspu lu command is applied to that PU, and the pu keyword and pu-name argument are not required if the dspu lu command immediately follows one of these commands: dspu default-pu or dspu pu.
If the keyword and argument are included, the LU defined by the dspu lu command will be applied to the named PU.
The pool and host parameters are mutually exclusive. You can define a range of LUs to be either assigned from a pool or dedicated to a host.
Examples
The following example defines downstream LUs as dedicated LUs. The downstream PU, ciscopu, has three downstream LUs with addresses 2 and 4. When ciscopu establishes a connection with the DSPU, the three downstream LUs (2, 3, and 4) are dedicated to LUs 22, 23, and 24, respectively, from the IBM 3745 host.
dspu host ibm3745 xid-snd 065000001 rmac 4000.3745.0001dspu pu ciscopu xid-rcv 05D00001 rmac 1000.5AED.1F53dspu lu 2 4 host ibm3745 22Related Commands
dspu ncia
To configure the NCIA server as the underlying transport, use the dspu ncia global configuration command. To cancel the definition, use the no form of this command.
dspu ncia [server-number]
no dspu ncia [server-number]
Syntax Description
server-number
(Optional) Server number configured in the ncia server command. Currently, only one NCIA server is supported.
Defaults
No default behavior or values.
Command Modes
Global configuration
Command History
Usage Guidelines
You must use the ncia server command to configure an NCIA server on the router before using the dspu ncia command to configure the NCIA server as the underlying transport.
Examples
The following example configures the NCIA server as the underlying transport mechanism communicating directly with DSPU:
dspu ncia 1Related Commands
Enables a SAP on the NCIA server for use by downstream connections.
ncia server
Configures an NCIA server on a Cisco router.
dspu ncia enable-pu
To enable a SAP on the NCIA server for use by downstream connections, use the dspu ncia enable-pu global configuration command. To disable the SAP, use the no form of this command.
dspu ncia enable-pu [lsap local-sap]
no dspu ncia enable-pu [lsap local-sap]
Syntax Description
lsap local-sap
(Optional) Specifies that the local SAP address will be activated as an upstream SAP for receiving incoming connection attempts. The default is 8.
Defaults
The default local SAP is 8.
Command Modes
Global configuration
Command History
Examples
In the following example, the local SAP address 8 is enabled for use by the downstream PU CISCOPU-A:
dspu ncia 1dspu ncia enable-pu lsap 8!dspu host HOST-9370 xid-snd 11100001 rmac 4000.1060.1000 rsap 4 lsap 4!dspu pu CISCOPU-A xid-rcv 01700001dspu lu 2 6 host HOST-9370 2!interface TokenRing 0ring-speed 16llc2 xid-retry-time 0dspu enable-host lsap 4dspu start HOST-9370Related Commands
Configures the NCIA server as the underlying transport.
Defines an explicit downstream PU over Token Ring, Ethernet, FDDI, RSRB, VDLC, or NCIA connections.
dspu notification-level
To specify the DSPU notifications to send to SNMP and SNA network management, use the dspu notification-level global configuration command. To specify the default notification level low, use the no form of this command.
dspu notification-level {off | low | medium | high}
no dspu notification-level
Syntax Description
Defaults
The default notification level is low.
Command Modes
Global configuration
Command History
Usage Guidelines
This command applies to both SNMP traps and unsolicited SNA messages to operator. The upstream PU and LU notification events and the LU state change notification events are not sent as unsolicited SNA messages to operator. These events are sent as SNMP traps only.
Examples
The following example sets the notification level to enable DSPU to send notifications to network management for both PU and LU state changes and activation failures:
dspu notification-level highRelated Commands
dspu pool
To define a range of host LUs in an LU pool, use the dspu pool global configuration command. To remove the definition, use the no form of this command.
dspu pool pool-name host host-name lu lu-start [lu-end] [inactivity-timeout minutes]
no dspu pool pool-name host host-name lu lu-start [lu-end] [inactivity-timeout minutes]
Syntax Description
Defaults
The inactivity-timeout is disabled.
Command Modes
Global configuration
Command History
Usage Guidelines
You can include multiple dspu pool commands that specify the same pool name. In this way, an LU pool can include several LU ranges from the one host PU, or it can include LUs from different host PUs. The LUs from host host-name starting at lu-start and ending with lu-end, inclusive, will be included in the pool pool-name. For the LUs in this pool, if there is no traffic on either the SSCP-LU or LU-LU sessions for the inactivity-timeout number of minutes, the downstream LU will be disconnected from the upstream LU, and the upstream LU will be allocated to any downstream LU waiting for a session. A value of zero for inactivity minutes means no timeouts. (The inactivity-timeout applies to all LUs in this pool, not just the LUs defined by this dspu pool command. The last value configured will be used.)
Examples
The following example defines a pool of host LUs. A pool of 253 host LUs is defined with all LUs supplied from the ibm3745 host PU:
dspu host ibm3745 xid-snd 065000001 rmac 4000.3745.0001dspu pool hostpool host ibm3745 lu 2 254The following example defines multiple pools and defines a disjoint pool of host LUs. One pool with a total of 205 host LUs and second pool with a total of 48 host LUs are defined with all LUs supplied from the same ibm3745 host PU. Host LUs with addresses 2 to 201 and 250 to 254 are defined in hostpool1. Host LUs with addresses 202 to 249 are defined in hostpool2.
dspu host ibm3745 xid-snd 065000001 rmac 4000.3745.0001dspu pool hostpool1 host ibm3745 lu 2 201dspu pool hostpool2 host ibm3745 lu 202 249dspu pool hostpool1 host ibm3745 lu 250 254The following example defines a pool of LUs from multiple hosts. A pool of 506 host LUs is defined with 253 LUs supplied by the ibm3475 host PU and 253 supplied by the ibm3172 host PU.
dspu host ibm3745 xid-snd 065000001 rmac 4000.3745.0001dspu host ibm3172 xid 06500002 rmac 4000.3172.0001dspu pool hostpool host ibm3745 lu 2 254dspu pool hostpool host ibm3172 lu 2 254Related Commands
dspu pu (Frame Relay)
To define a DSPU host over a Frame Relay connection, use the dspu pu global configuration command. To cancel the definition, use the no form of this command.
dspu pu pu-name dlci dlci-number [rsap remote-sap] [lsap local-sap] [xid-rcv xid] [interface slot/port] [window window-size] [maxiframe max-iframe] [retries retry-count] [retry-timeout retry-timeout]
no dspu pu pu-name dlci dlci-number [rsap remote-sap] [lsap local-sap] [xid-rcv xid] [interface slot/port] [window window-size] [maxiframe max-iframe] [retries retry-count] [retry-timeout retry-timeout]
Syntax Description
Defaults
The default remote SAP is 4.
The default local SAP is 8.
The default window size is 7.
The default maximum I-frame is 1472.
The default retry count is 4.
The default retry timeout is 30 seconds.
Command Modes
Global configuration
Command History
Examples
The following example defines a downstream PU:
dspu pu pub dlci 8Related Commands
dspu pu (QLLC)
To explicitly define a downstream PU over an X.25 connection, use the dspu pu global configuration command. To cancel the definition, use the no form of this command.
dspu pu pu-name x25 remote-x121-addr [qllc local-x121-subaddr] [xid-rcv xid] [interface slot/port] [window window-size] [maxiframe max-iframe] [retries retry-count] [retry-timeout retry-timeout]
no dspu pu pu-name x25 remote-x121-addr [qllc local-x121-subaddr] [xid-rcv xid] [interface slot/port] [window window-size] [maxiframe max-iframe] [retries retry-count] [retry-timeout retry-timeout]
Syntax Description
Defaults
The default window size is 7.
The default maximum I-frame is 1472.
The default retry count is 4.
The default retry timeout is 30 seconds.
Command Modes
Global configuration
Command History
Examples
The following example defines a downstream PU:
dspu pu testpu xid-rcv 05d00001 x25 32012 qllc 12Related Commands
Enables an X.121 subaddress for use by downstream PU connections through QLLC.
Defines a dedicated LU or a range of LUs for an upstream host and a downstream PU.
dspu pu (SDLC)
To define a DSPU host over an SDLC connection, use the dspu pu global configuration command. To cancel the definition, use the no form of this command.
dspu pu pu-name sdlc sdlc-addr [xid-rcv xid] [interface slot/port] [window window-size] [maxiframe max-iframe] [retries retry-count] [retry-timeout retry-timeout]
no dspu pu pu-name sdlc sdlc-addr [xid-rcv xid] [interface slot/port] [window window-size] [maxiframe max-iframe] [retries retry-count] [retry-timeout retry-timeout]
Syntax Description
Defaults
The default window size is 7.
The default maximum I-frame is 1472.
The default retry count is 4.
The default retry timeout is 30 seconds.
Command Modes
Global configuration
Command History
Examples
The following example defines a downstream PU:
dspu pu testpu sdlc c1 interface serial 0Related Commands
Enables an SDLC address for use by downstream PU connections.
Defines a dedicated LU or a range of LUs for an upstream host and a downstream PU.
dspu pu (Token Ring, Ethernet, FDDI, RSRB, VDLC, NCIA)
To define an explicit downstream PU over Token Ring, Ethernet, FDDI, RSRB, virtual data-link control, or NCIA connections, use the dspu pu global configuration command. To cancel the definition, use the no form of this command.
dspu pu pu-name [rmac remote-mac] [rsap remote-sap] [lsap local-sap] [xid-rcv xid] [interface slot/port] [window window-size] [maxiframe max-iframe] [retries retry-count] [retry-timeout retry-timeout]
no dspu pu pu-name [rmac remote-mac] [rsap remote-sap] [lsap local-sap] [xid-rcv xid] [interface slot/port] [window window-size] [maxiframe max-iframe] [retries retry-count] [retry-timeout retry-timeout]
Syntax Description
Defaults
The default remote SAP is 4.
The default local SAP is 8.
The default window size is 7.
The default maximum I-frame is 1472.
The default retry count is 4.
The default retry timeout is 30 seconds.
Command Modes
Global configuration
Command History
Usage Guidelines
The local SAP address must be enabled by one of the following commands:
•
dspu enable-pu lsap fo5
•
•
•
The send and receive maximum I-frame size includes the SNA TH and RH, but does not include the data-link control header. The DSPU feature will segment frames being sent to fit within this frame size. If an XID is received from a remote PU which indicates that it supports a different maximum I-frame size, then the smaller of the two values is used.
If you want the DSPU to attempt a ConnectOut to the remote node using the dspu start command, you must configure the rmac keyword and argument. If you want this PU to match against a ConnectIn attempt, then several combinations of rmac, rsap, xid-rcv are possible. The matching algorithms are as follows:
•
•
•
If an XID is received from a remote PU which indicates that it supports a different maximum I-frame size, then the smaller of the two values is used.
For Cisco IOS Release 11.3 and later, the number of DSPU PUs that can be configured is 1024.
Examples
In the following example, a downstream PU is defined with only the MAC address and SAP address specified. A downstream PU that attempts an incoming connection to the DSPU will only be accepted if the remote MAC/SAP address matches the configured values for this downstream PU (and the proper local SAP address is enabled).
dspu pu ciscopu rmac 1000.5AED.1F53 rsap 20dspu lu 2 5 pool hostpoolinterface tokenring 0dspu enable-pu lsap 8In the following example, a downstream PU is defined with only an xid-rcv value. Any downstream PU that attempts an incoming connection specifying the xid-rcv value, 05D00001, will be accepted without regard to remote MAC or SAP address (although the proper local SAP address must be enabled).
dspu pu ciscopu xid-rcv 05d00001dspu lu 2 5 pool hostpoolinterface tokenring 0dspu enable-pu lsap 8In the following example, a downstream PU is defined with xid-rcv, rmac, and rsap keywords. Any downstream PU that attempts to connect in to the DSPU must match all three configured values for the connection to be accepted (the proper local SAP address must also be enabled).
dspu pu ciscopu xid-rcv 05d00001 rmac 1000.5AED.1F53 rsap 20dspu lu 2 5 pool hostpoolinterface tokenring 0dspu enable-pu lsap 8Related Commands
dspu rsrb
To define the local virtual ring, virtual bridge, target virtual ring, and virtual MAC address that the DSPU feature will simulate at the RSRB, use the dspu rsrb global configuration command. To cancel the definition, use the no form of this command.
dspu rsrb local-virtual-ring bridge-number target-virtual-ring virtual-macaddr
no dspu rsrb local-virtual-ring bridge-number target-virtual-ring virtual-macaddr
Syntax Description
Defaults
No default behavior or values.
Command Modes
Global configuration
Command History
Usage Guidelines
The bridge number parameter can be specified only once in a configuration.
Use the dspu rsrb command to enable DSPU host and downstream connections to be established across an RSRB link.
If the local-ack parameter is specified on the source-bridge remote-peer statement, DSPU will establish host connections across RSRB using local acknowledgment. DSPU cannot support local acknowledgment for downstream PU connections across RSRB.
Examples
The following example defines DSPU to start a connection to the host across an RSRB link (without local acknowledgment). The DSPU is identified by its local ring number 88 and its virtual MAC address 4000.FFFF.0001. When the DSPU attempts an outgoing connection to the ibm3745 host, the connection will be established across the RSRB virtual ring 99.
source-bridge ring-group 99source-bridge remote-peer 99 tcp 150.10.13.1source-bridge remote-peer 99 tcp 150.10.13.2dspu rsrb 88 1 99 4000.FFFF.0001dspu rsrb enable-host lsap 10dspu host ibm3745 xid-snd 06500001 rmac 4000.3745.0001 lsap 10dspu rsrb start ibm3745interface serial 0ip address 150.10.13.1 255.255.255.0The following example defines DSPU to start a connection to the host across an RSRB link (with local acknowledgment). The DSPU is identified by its local ring number 88 and its virtual MAC address 4000.FFFF.0001. When the DSPU attempts an outward connection to the ibm3745 host, the connection will be established across the RSRB virtual ring 99 using RSRB local acknowledgment.
source-bridge ring-group 99source-bridge remote-peer 99 tcp 150.10.13.1source-bridge remote-peer 99 tcp 150.10.13.2 local-ackdspu rsrb 88 1 99 4000.FFFF.0001dspu rsrb enable-host lsap 10dspu host ibm3745 xid-snd 06500001 rmac 4000.3745.0001 lsap 10dspu rsrb start ibm3745interface serial 0ip address 150.10.13.1 255.255.255.0The following example defines DSPU to allow a connection from the downstream PU across an RSRB link.The DSPU is identified by its local ring number 88 and its virtual MAC address 4000.FFFF.0001. The downstream PU will specify the DSPU virtual MAC address 4000.FFFF.0001 and SAP address 20 in its host definitions. The DSPU will accept incoming connections from the downstream PU across the RSRB virtual ring 99.
source-bridge ring-group 99source-bridge remote-peer 99 tcp 150.10.13.1source-bridge remote-peer 99 tcp 150.10.13.2dspu rsrb 88 1 99 4000.FFFF.0001dspu rsrb enable-pu lsap 20dspu pu ciscopu xid-rcv 05D00001 lsap 20interface serial 0ip address 150.10.13.1 255.255.255.0Related Commands
dspu rsrb enable-host
To enable an RSRB SAP for use by DSPU host connections, use the dspu rsrb enable-host global configuration command. To disable the RSRB SAP, use the no form of this command.
dspu rsrb enable-host [lsap local-sap]
no dspu rsrb enable-host [lsap local-sap]
Syntax Description
Defaults
The default local SAP is 12.
Command Modes
Global configuration
Command History
Examples
In the following example, the local SAP address 10 of the RSRB is enabled for use by the ibm3745 host PU:
source-bridge ring-group 99source-bridge remote-peer 99 tcp 150.10.13.1source-bridge remote-peer 99 tcp 150.10.13.2dspu rsrb 88 1 99 4000.FFFF.0001dspu rsrb enable-host lsap 10dspu host ibm3745 xid-snd 06500001 rmac 4000.3745.0001 lsap 10interface serial 0ip address 150.10.13.1 255.255.255.0Related Commands
dspu rsrb enable-pu
To enable an RSRB SAP for use by DSPU downstream connections, use the dspu rsrb enable-pu global configuration command. To disable the SAP, use the no form of this command.
dspu rsrb enable-pu [lsap local-sap]
no dspu rsrb enable-pu [lsap local-sap]
Syntax Description
lsap local-sap
(Optional) Specifies that the local SAP address will be activated as an upstream SAP for both receiving incoming connection attempts and for starting outgoing connection attempts.
Defaults
The default local SAP is 8.
Command Modes
Global configuration
Command History
Examples
In the following example, the local SAP address 20 of the RSRB is enabled for use by the ciscopu DSPU downstream PU:
source-bridge ring-group 99source-bridge remote-peer 99 tcp 150.10.13.1source-bridge remote-peer 99 tcp 150.10.13.2dspu rsrb 88 1 99 4000.FFFF.0001dspu rsrb enable-pu lsap 20dspu pu ciscopu xid-rcv 05D00001 lsap 20Related Commands
dspu rsrb start
To specify that an attempt will be made to connect to the remote resource defined by host name or PU name through the RSRB, use the dspu rsrb start global configuration command. To cancel the definition, use the no form of this command.
dspu rsrb start {host-name | pu-name}
no dspu rsrb start {host-name | pu-name}
Syntax Description
host-name
Name of a host defined in a dspu host (Token Ring, Ethernet, FDDI, RSRB, VDLC) command.
pu-name
Name of a PU defined in a dspu host (Token Ring, Ethernet, FDDI, RSRB, VDLC) command.
Defaults
No default behavior or values.
Command Modes
Global configuration
Command History
Usage Guidelines
Before issuing this command, you must enable the correct local SAP with the appropriate enable command (dspu rsrb enable-host for a host resource, and dspu rsrb enable-pu for a PU resource).
This command is only valid if the target MAC address has been defined in the resource. For a host resource, this not a problem because the MAC address is mandatory, but for a PU resource the MAC address is optional. The command will fail if the MAC address is missing.
Examples
In the following example, the DSPU will initiate a connection with the ibm3745 host PU across the RSRB link:
source-bridge ring-group 99source-bridge remote-peer 99 tcp 150.10.13.1source-bridge remote-peer 99 tcp 150.10.13.2dspu rsrb 88 1 99 4000.FFFF.0001dspu rsrb enable-host lsap 10dspu host ibm3745 xid-snd 06500001 rmac 4000.3745.0001 lsap 10dspu rsrb start ibm3745interface serial 0ip address 150.10.13.1 255.255.255.0Related Commands
dspu start
To specify that an attempt will be made to connect to the remote resource defined by host name or PU name, use the dspu start interface configuration command. To cancel the definition, use the no form of this command.
dspu start {host-name | pu-name}
no dspu start {host-name | pu-name}
Syntax Description
host-name
Name of a host defined in a dspu host command.
pu-name
Name of a PU defined in a dspu pu command.
Defaults
No default behavior or values.
Command Modes
Interface configuration
Command History
Usage Guidelines
Before issuing this command, you must enable the correct address using the appropriate dspu enable-host or dspu enable-pu command.
This command is only valid if the target address (RMAC SDLC, DLCI, or X.25 parameter) has been defined for the resource. For a host resource, this is not a problem because the address specification is mandatory, but for a PU resource, specifying the address is optional. The dspu start command will fail if the address is missing.
Examples
In the following example, the DSPU will initiate a connection with the ciscopu downstream PU on Token Ring interface 0:
dspu pu ciscopu xid-rcv 05D00001 rmac 1000.5AED.1F53 lsap 20interface tokenring 0dspu enable-pu lsap 20dspu start ciscopuRelated Commands
dspu vdlc
To identify the local virtual ring and virtual MAC address that will be used to establish DSPU host and downstream connections over DLSw+ using virtual data-link control, use the dspu vdlc global configuration command. To cancel the definition, use the no form of this command.
dspu vdlc ring-group virtual-mac-address
no dspu vdlc ring-group virtual-mac-address
Syntax Description
ring-group
Local virtual ring number identifying the SRB ring group.
virtual-mac-address
Virtual MAC address that represents the DSPU virtual data-link control.
Defaults
No default behavior or values.
Command Modes
Global configuration
Command History
Usage Guidelines
The virtual data-link control local virtual ring must have been previously configured using the source-bridge ring-group command.
The virtual data-link control virtual MAC address must be unique within the DLSw+ network.
To avoid an address conflict on the virtual MAC address, use a locally administered address in the form 4000.xxxx.xxxx.
Examples
The following example defines DSPU to start a connection to the host using virtual data-link control. The DSPU virtual data-link control is identified by its virtual MAC address 4000.4500.01f0, existing on the SRB virtual ring 99. When the DSPU attempts an outgoing connection to the host HOST-B, the connection will be established across the virtual ring 99.
source-bridge ring-group 99dlsw local-peer peer-id 150.10.16.2dlsw remote-peer 0 tcp 150.10.16.1dspu vdlc 99 4000.4500.01f0dspu vdlc enable-host lsap 12dspu host HOST-B xid-snd 065bbbb0 rmac 4000.7000.01f1 rsap 4 lsap 12 focalpointdspu vdlc start HOST-Binterface serial 3description IP connection to dspu7kip address 150.10.16.2 255.255.255.0clockrate 4000000Related Commands
dspu vdlc enable-host
To enable a SAP for use by DSPU host connections, use the dspu vdlc enable-host global configuration command. To disable the SAP, use the no form of this command.
dspu vdlc enable-host [lsap local-sap]
no dspu vdlc enable-host [lsap local-sap]
Syntax Description
Defaults
The default local SAP is 12.
Command Modes
Global configuration
Command History
Examples
In the following example, the local SAP address 12 is enabled for use by the host PU HOST-B:
source-bridge ring-group 99dlsw local-peer peer-id 150.10.16.2dlsw remote-peer 0 tcp 150.10.16.1dspu vdlc 99 4000.4500.01f0dspu vdlc enable-pu lsap 8dspu vdlc enable-host lsap 12dspu host HOST-B xid-snd 065bbbb0 rmac 4000.7000.01f1 rsap 4 lsap 12 focalpointdspu pool pool-b host HOST-B lu 2 254dspu host HOST3K-A xid-snd 05d0000a rmac 4000.3000.0100 rsap 8 lsap 12dspu pool pool3k-a host HOST3K-A lu 2 254dspu pu PU3K-A xid-rcv 05d0000a rmac 4000.3000.0100 rsap 10 lsap 8dspu lu 2 254 pool pool-bdspu default-pudspu lu 2 5 pool pool3k-adspu vdlc start HOST-Bdspu vdlc start HOST3K-Adspu vdlc start PU3K-Ainterface serial 3description IP connection to dspu7kip address 150.10.16.2 255.255.255.0clockrate 4000000Related Commands
dspu vdlc enable-pu
To enable a SAP for use by DSPU virtual data-link control downstream connections, use the dspu vdlc enable-pu global configuration command. To disable the SAP, use the no form of this command.
dspu vdlc enable-pu [lsap local-sap]
no dspu vdlc enable-pu [lsap local-sap]
Syntax Description
Defaults
The default local SAP is 8.
Command Modes
Global configuration
Command History
Examples
In the following example, the local SAP address 8 is enabled for use by the downstream PU PU3K-A:
source-bridge ring-group 99dlsw local-peer peer-id 150.10.16.2dlsw remote-peer 0 tcp 150.10.16.1dspu vdlc 99 4000.4500.01f0dspu vdlc enable-pu lsap 8dspu vdlc enable-host lsap 12dspu host HOST-B xid-snd 065bbbb0 rmac 4000.7000.01f1 rsap 4 lsap 12 focalpointdspu pool pool-b host HOST-B lu 2 254dspu host HOST3K-A xid-snd 05d0000a rmac 4000.3000.0100 rsap 8 lsap 12dspu pool pool3k-a host HOST3K-A lu 2 254dspu pu PU3K-A xid-rcv 05d0000a rmac 4000.3000.0100 rsap 10 lsap 8dspu lu 2 254 pool pool-bdspu default-pudspu lu 2 5 pool pool3k-adspu vdlc start HOST-Bdspu vdlc start HOST3K-Adspu vdlc start PU3K-Ainterface serial 3description IP connection to dspu7kip address 150.10.16.2 255.255.255.0clockrate 4000000Related Commands
dspu vdlc start
To specify that an attempt will be made to connect to the remote resource defined by host name or PU name through virtual data-link control, use the dspu vdlc start global configuration command. To cancel the definition, use the no form of this command.
dspu vdlc start {host-name | pu-name}
no dspu vdlc start {host-name | pu-name}
Syntax Description
host-name
Name of a host defined in a dspu host command.
pu-name
Name of a PU defined in a dspu host command.
Defaults
No default behavior or values.
Command Modes
Global configuration
Command History
Usage Guidelines
Before issuing this command, you must enable the correct local SAP with the appropriate enable command (dspu vdlc enable-host for a host resource, and dspu vdlc enable-pu for a PU resource).
This command is only valid if the target MAC address has been defined in the resource. For a host resource, this is not a problem because the MAC address is mandatory, but for a PU resource the MAC address is optional. The command will fail if the MAC address is missing.
Examples
In the following example, DSPU attempts to initiate connections with host PU HOST-B, host PU HOST3k-A, and downstream PU PU3k-A over DLSw+ using virtual data-link control:
source-bridge ring-group 99dlsw local-peer peer-id 150.10.16.2dlsw remote-peer 0 tcp 150.10.16.1dspu vdlc 99 4000.4500.01f0dspu vdlc enable-pu lsap 8dspu vdlc enable-host lsap 12dspu host HOST-B xid-snd 065bbbb0 rmac 4000.7000.01f1 rsap 4 lsap 12 focalpointdspu pool pool-b host HOST-B lu 2 254dspu host HOST3K-A xid-snd 05d0000a rmac 4000.3000.0100 rsap 8 lsap 12dspu pool pool3k-a host HOST3K-A lu 2 254dspu pu PU3K-A xid-rcv 05d0000a rmac 4000.3000.0100 rsap 10 lsap 8dspu lu 2 254 pool pool-bdspu default-pudspu lu 2 5 pool pool3k-adspu vdlc start HOST-Bdspu vdlc start HOST3K-Adspu vdlc start PU3K-Ainterface serial 3description IP connection to dspu7kip address 150.10.16.2 255.255.255.0clockrate 4000000Related Commands
lan-name
To specify a name for the LAN that is attached to the interface, use the lan-name interface configuration command. This name is included in any Alert sent to the SNA host when a problem occurs on this interface or LAN. To revert to the default name, use the no form of this command.
lan-name lan-name
no lan-name lan-name
Syntax Description
lan-name
Name used to identify the LAN when you send Alerts to the SNA host. The default LAN name is the name of the interface.
Defaults
The default name used for the LAN is the name of the interface.
Command Modes
Interface configuration
Command History
Examples
The following example identifies a LAN:
lan-name LAN1Related Commands
show dspu
To display the status of the DSPU feature, use the show dspu privileged EXEC command.
show dspu [pool pool-name | [pu {host-name | pu-name} [all]]
Syntax Description
pool pool-name
(Optional) Name of a pool of LUs (as defined by the dspu pool command).
pu
(Optional) Name of defined PU (as defined by either the dspu pu or the dspu host command).
host-name
Name of a host defined in a dspu host command.
pu-name
Name of a PU defined in a dspu pu command.
all
(Optional) Displays a detailed status.
Defaults
No default behavior or values.
Command Modes
Privileged EXEC
Command History
Examples
The following is sample output from the show dspu command. It shows a summary of the DSPU status.
Router# show dspudspu host HOST_NAMEA interface PU STATUS ssssssssFRAMES RECEIVED nnnnnn FRAMES SENT nnnnnnLUs USED BY DSPU nnn LUs ACTIVE nnnLUs USED BY API nnn LUs ACTIVE nnnLUs ACTIVATED BY HOST BUT NOT USED nnndspu host HOST_NAMEB interface PU STATUS ssssssssFRAMES RECEIVED nnnnnn FRAMES SENT nnnnnnLUs USED BY DSPU nnn LUs ACTIVE nnnLUs USED BY API nnn LUs ACTIVE nnnLUs ACTIVATED BY HOST BUT NOT USED nnndspu pu PU_NAMEE interface PU STATUS ssssssssFRAMES RECEIVED nnnnnn FRAMES SENT nnnnnnLUs USED BY DSPU nnn LUs ACTIVE nnnLUs USED BY API nnn LUs ACTIVE nnnLUs ACTIVATED BY HOST BUT NOT USED nnndspu pu PU_NAMEF interface PU STATUS ssssssssFRAMES RECEIVED nnnnnn FRAMES SENT nnnnnnLUs USED BY DSPU nnn LUs ACTIVE nnnLUs USED BY API nnn LUs ACTIVE nnnLUs ACTIVATED BY HOST BUT NOT USED nnnThe following is sample output from the show dspu command with the pu keyword:
Router# show dspu pu putestdspu pu PUTEST interface PU STATUS ssssssssRMAC remote_mac RSAP remote_sap LSAP local_sapXID xid RETRIES retry_count RETRY_TIMEOUT retry_timeoutWINDOW window_size MAXIFRAME max_iframeFRAMES RECEIVED nnnnnn FRAMES SENT nnnnnnLUs USED BY DSPU nnn LUs ACTIVE nnnLUs USED BY API nnn LUs ACTIVE nnnLUs ACTIVATED BY HOST BUT NOT USED nnnThe following is sample output from the show dspu command with the all keyword:
Router# show dspu pu putest alldspu pu PUTEST interface PU STATUS ssssssssRMAC remote_mac RSAP remote_sap LSAP local_sapXID xid RETRIES retry_count RETRY_TIMEOUT retry_timeoutWINDOW window_size MAXIFRAME max_iframeFRAMES RECEIVED nnnnnn FRAMES SENT nnnnnnLU nnn PEER PU HOST_NAMEA PEER LU nnn STATUS ttttttttFRAMES RECEIVED nnnnnn FRAMES SENT nnnnnnLU nnn PEER PU HOST_NAMEA PEER LU nnn STATUS ttttttttFRAMES RECEIVED nnnnnn, FRAMES SENT nnnnnnLU nnn PEER PU HOST_NAMEB PEER LU nnn STATUS ttttttttFRAMES RECEIVED nnnnnn, FRAMES SENT nnnnnnThe following shows a summary of the LUs in a pool:
Router# show dspu pool poolnamedspu pool poolname host HOST_NAMEA lu start-lu end-luThe following shows the details of all the LUs in a pool:
Router# show dspu pool poolname alldspu pool poolname host HOST_NAMEA lu start-lu end-luDSPU POOL poolname INACTIVITY_TIMEOUT timeout-valuelu nnn host HOST_NAMEA peer lu nnn pu PU_NAMEF status ttttttttlu nnn host HOST_NAMEA peer lu nnn pu PU_NAMEF status ttttttttlu nnn host HOST_NAMEA peer lu nnn pu PU_NAMEF status ttttttttshow sna
To display the status of the SNA Service Point feature, use the show sna privileged EXEC command.
show sna [pu host-name [all]]
Syntax Description
pu
(Optional) Name of a host defined in an sna host command.
host-name
(Optional) Name of a host defined in an sna host command.
all
(Optional) Displays detailed status.
Command Modes
Privileged EXEC
Command History
Examples
The following is sample output from the show sna command. It shows a summary of the SNA features status.
Router# show snasna host HOST_NAMEA TokenRing1 PU STATUS activeFRAMES RECEIVED 00450 FRAMES SENT 00010LUs USED BY DSPU nnn LUs ACTIVE nnnLUs USED BY API nnn LUs ACTIVE nnnLUs ACTIVATED BY HOST BUT NOT USED nnnThe following is sample output from the show sna command with the pu keyword:
Router# show sna pu putestsna host PUTEST TokenRing1 PU STATUS activeRMAC 400000000004 RSAP 04 LSAP 04XID 05d00001 RETRIES 255 RETRY_TIMEOUT 30WINDOW 7 MAXIFRAME 1472FRAMES RECEIVED 0450 FRAMES SENT 0010LUs USED BY DSPU nnn LUs ACTIVE nnnLUs USED BY API nnn LUs ACTIVE nnnLUs ACTIVATED BY HOST BUT NOT USED nnnBecause the all keyword refers to LUs under the PU, this has no significance for the Service Point host.
sna enable-host (QLLC)
To enable an X.121 subaddress for use by the SNA Service Point feature on the interface, use the sna enable-host interface configuration command. To disable SNA Service Point on the interface, use the no form of this command.
sna enable-host qllc x121-subaddress
no sna enable-host qllc x121-subaddress
Syntax Description
Defaults
No default X.121 subaddress is specified.
Command Modes
Interface configuration
Command History
Examples
In the following example, X.121 subaddress 320108 is enabled for use by host connections:
sna enable-host qllc 320108Related Commands
sna enable-host (SDLC)
To enable an SDLC address for use by host connections, use the sna enable-host interface configuration command. To cancel the definition, use the no form of this command.
sna enable-host sdlc sdlc-address
no sna enable-host sdlc sdlc-address
Syntax Description
Defaults
No default SDLC address is specified.
Command Modes
Interface configuration
Command History
Examples
In the following example, SDLC address C1 is enabled for use by host connections:
encapsulation sdlcsdlc role secondarysdlc address c1sna enable-host sdlc c1Related Commands
encapsulation sdlc
Configures an SDLC interface.
Defines a link to an SNA host over an SDLC connection.
sna enable-host (Token Ring, Ethernet, Frame Relay, FDDI)
To enable SNA on the interface, use the sna enable-host interface configuration command. To disable SNA on the interface, use the no form of this command.
sna enable-host [lsap lsap-address]
no sna enable-host [lsap lsap-address]
Syntax Description
lsap
(Optional) Activate a local SAP as an upstream SAP, for both receiving ConnectIn attempts and for starting ConnectOut attempts.
lsap-address
(Optional) Local SAP. The default is 12.
Defaults
The default LSAP parameter is 12.
Command Modes
Interface configuration
Command History
Examples
The following example enables SNA on the interface and specifies that the local SAP 10 will be activated as an upstream SAP:
sna enable-host lsap 10Related Commands
sna host (Frame Relay)
To define a link to an SNA host over a Frame Relay connection, use this form of the sna host global configuration command. To cancel the definition, use the no form of this command.
sna host host-name xid-snd xid dlci dlci-number [rsap remote-sap] [lsap local-sap] [interface slot/port] [window window-size] [maxiframe max-iframe] [retries retry-count] [retry-timeout retry-timeout] [focalpoint]
no sna host host-name xid-snd xid dlci dlci-number [rsap remote-sap] [lsap local-sap] [interface slot/port] [window window-size] [maxiframe max-iframe] [retries retry-count] [retry-timeout retry-timeout] [focalpoint]
Syntax Description
Defaults
The default remote SAP is 4.
The default local SAP is 12.
The default window size is 7.
The default maximum I-frame size is 1472.
The default retry count is 255.
The default retry timeout is 30 seconds.
Command Modes
Global configuration
Command History
Examples
The following example defines a link to an SNA host:
sna host CNM01 xid-snd 05d00001 dlci 200 rsap 4 lsap 4Related Commands
sna host (QLLC)
To define a link to an SNA host over an X.25/QLLC connection, use this form of the sna host global configuration command. To cancel the definition, use the no form of this command.
sna host host-name xid-snd xid x25 remote-x121-addr [qllc local-x121-subaddr] [interface slot/port] [window window-size] [maxiframe max-iframe] [retries retry-count] [retry-timeout retry-timeout] [focalpoint]
no sna host host-name xid-snd xid x25 remote-x121-addr [qllc local-x121-subaddr] [interface slot/port] [window window-size] [maxiframe max-iframe] [retries retry-count] [retry-timeout retry-timeout] [focalpoint]
Syntax Description
Defaults
The default remote SAP is 4.
The default window size is 7.
The default maximum I-frame size is 1472.
The default retry count is 255.
The default retry timeout is 30 seconds.
Command Modes
Global configuration
Command History
Examples
The following example defines a link to an SNA host:
sna host MLM1 xid-snd 05d00001 x25 320108 qllc 08Related Commands
Enables an X.121 subaddress for use by the SNA Service Point feature on the interface.
Initiates a connection to a remote resource.
sna host (SDLC)
To define a link to an SNA host over an SDLC connection, use this form of the sna host global configuration command. To cancel the definition, use the no form of this command.
sna host host-name xid-snd xid sdlc sdlc-addr [rsap remote-sap] [lsap local-sap] [interface slot/port] [window window-size] [maxiframe max-iframe] [retries retry-count] [retry-timeout retry-timeout] [focalpoint]
no sna host host-name xid-snd xid rmac remote-mac [rsap remote-sap] [lsap local-sap] [interface slot/port] [window window-size] [maxiframe max-iframe] [retries retry-count] [retry-timeout retry-timeout] [focalpoint]
Syntax Description
Defaults
The default remote SAP is 4.
The default local SAP is 12.
The default window size is 7.
The default maximum I-frame size is 1472.
The default retry count is 255.
The default retry timeout is 30 seconds.
Command Modes
Global configuration
Command History
Examples
The following example defines a link to an SNA host:
sna host CNM01 xid-snd 05d00001 sdlc c1 rsap 4 lsap 4 focalpointRelated Commands
Enables an SDLC address for use by host connections.
Initiates a connection to a remote resource.
sna host (Token Ring, Ethernet, FDDI, RSRB, VDLC)
To define a link to an SNA host over Token Ring, Ethernet, FDDI, RSRB, or virtual data-link control connections, use the sna host global configuration command. To cancel the definition, use the no form of this command.
sna host host-name xid-snd xid rmac remote-mac [rsap remote-sap] [lsap local-sap] [interface slot/port] [window window-size] [maxiframe max-iframe] [retries retry-count] [retry-timeout retry-timeout] [focalpoint]
no sna host host-name xid-snd xid rmac remote-mac [rsap remote-sap] [lsap local-sap] [interface slot/port] [window window-size] [maxiframe max-iframe] [retries retry-count] [retry-timeout retry-timeout] [focalpoint]
Syntax Description
Defaults
The default remote SAP is 4.
The default local SAP is 12.
The default window size is 7.
The default maximum I-frame size is 1472.
The default retry count is 255.
The default retry timeout is 30 seconds.
Command Modes
Global configuration
Command History
Examples
The following example defines a link to an SNA host:
sna host CNM01 xid-snd 05d00001 rmac 4001.3745.1088 rsap 4 lsap 4 focalpointRelated Commands
sna rsrb
To specify the entities that the SNA feature will simulate at the remote source-route bridge (RSRB), use the sna rsrb interface configuration command. To cancel the specification, use the no form of this command.
sna rsrb local-virtual-ring bridge-number target-virtual-ring virtual-macaddr
no sna rsrb local-virtual-ring bridge-number target-virtual-ring virtual-macaddr
Syntax Description
local-virtual-ring
Local virtual ring number.
bridge-number
Virtual bridge number. The valid range is 1 to 15.
target-virtual-ring
Target virtual ring number.
virtual-macaddr
Virtual MAC address.
Defaults
No default behavior or values.
Command Modes
Interface configuration.
Command History
Usage Guidelines
You can specify the bridge number no more than once in any configuration.
Examples
The following example identifies a LAN:
sna rsrb 88 1 99 4000.FFFF.0001Related Commands
Specifies that an attempt will be made to connect to the remote resource defined by host name through the RSRB.
sna rsrb enable-host
To enable an RSRB SAP for use by SNA Service Point feature, use the sna rsrb enable-host global configuration command. To disable the RSRB SAP, use the no form of this command.
sna rsrb enable-host [lsap local-sap]
no sna rsrb enable-host [lsap local-sap]
Syntax Description
Defaults
The default local SAP address is 12.
Command Modes
Global configuration
Command History
Examples
In the following example, the local SAP address 10 of the RSRB is enabled for use by the ibm3745 host PU:
source-bridge ring-group 99source-bridge remote-peer 99 tcp 150.10.13.1source-bridge remote-peer 99 tcp 150.10.13.2sna rsrb 88 1 99 4000.FFFF.0001sna rsrb enable-host lsap 10sna host ibm3745 xid-snd 06500001 rmac 4000.3745.0001 lsap 10interface serial 0ip address 150.10.13.1 255.255.255.0Related Commands
Defines a link to an SNA host over Token Ring, Ethernet, FDDI, RSRB, or VDLC connections.
sna rsrb start
To specify that an attempt will be made to connect to the remote resource defined by host name through the RSRB, use the sna rsrb start global configuration command. To cancel the definition, use the no form of this command.
sna rsrb start host-name
no sna rsrb start host-name
Syntax Description
Defaults
No default behavior or values.
Command Modes
Global configuration
Command History
Usage Guidelines
Before issuing this command, you must enable the correct local SAP with the appropriate enable command (sna rsrb enable-host).
Examples
In the following example, the SNA Service Point will initiate a connection with the ibm3745 host PU across the RSRB link:
source-bridge ring-group 99source-bridge remote-peer 99 tcp 150.10.13.1source-bridge remote-peer 99 tcp 150.10.13.2sna rsrb 88 1 99 4000.FFFF.0001sna rsrb enable-host lsap 10sna host ibm3745 xid-snd 06500001 rmac 4000.3745.0001 lsap 10sna rsrb start ibm3745interface serial 0ip address 150.10.13.1 255.255.255.0Related Commands
Defines a link to an SNA host over Token Ring, Ethernet, FDDI, RSRB, or VDLC connections.
Specifies the entities that the SNA feature will simulate at the RSRB.
sna start
To initiate a connection to a remote resource, use the sna start interface configuration command. To cancel the connection attempt, use the no form of this command.
sna start [resource-name]
no sna start [resource-name]
Syntax Description
Defaults
No default behavior or values.
Command Modes
Interface configuration
Command History
Usage Guidelines
Before issuing this command you must enable the correct address using the sna enable-host command.
Examples
The following example initiates a connection to CNM01:
sna start CNM01Related Commands
sna vdlc
To identify the local virtual ring and virtual MAC address that will be used to establish SNA host connections over DLSw+ using virtual data-link control, use the sna vdlc global configuration command. To cancel the definition, use the no form of this command.
sna vdlc ring-group virtual-mac-address
no sna vdlc ring-group virtual-mac-address
Syntax Description
ring-group
Local virtual ring number identifying the SRB ring group.
virtual-mac-address
Virtual MAC address that represents the SNA virtual data-link control.
Defaults
No default behavior or values.
Command Modes
Global configuration
Command History
Usage Guidelines
The virtual data-link control local virtual ring must have been previously configured using the source-bridge ring-group command.
The virtual data-link control virtual MAC address must be unique within the DLSw+ network.
To avoid an address conflict on the virtual MAC address, use a locally administered address in the form 4000.xxxx.xxxx.
Examples
The following is an example of an SNA Service Point configuration that uses virtual data-link control over DLSw+:
source-bridge ring-group 99dlsw local-peer peer-id 150.10.16.2dlsw remote-peer 0 tcp 150.10.16.1sna vdlc 99 4000.4500.01f0sna vdlc enable-host lsap 12sna host HOST-B xid-snd 065bbbb0 rmac 4000.7000.01f1 rsap 4 lsap 12 focalpointsna vdlc start HOST-Binterface serial 3description IP connection to dspu7kip address 150.10.16.2 255.255.255.0clockrate 4000000Related Commands
sna vdlc enable-host
To enable a SAP for use by SNA Service Point feature, use the sna vdlc enable-host global configuration command. To disable the SAP, use the no form of this command.
sna vdlc enable-host [lsap local-sap]
no sna vdlc enable-host [lsap local-sap]
Syntax Description
Defaults
The default local SAP address is 12.
Command Modes
Global configuration
Command History
Examples
In the following example, the local SAP address 12 is enabled for use by the host PU HOST-B:
source-bridge ring-group 99dlsw local-peer peer-id 150.10.16.2dlsw remote-peer 0 tcp 150.10.16.1sna vdlc 99 4000.4500.01f0sna vdlc enable-host lsap 12sna host HOST-B xid-snd 065bbbb0 rmac 4000.7000.01f1 rsap 4 lsap 12 focalpointsna vdlc start HOST-Binterface serial 3description IP connection to dspu7kip address 150.10.16.2 255.255.255.0clockrate 4000000Related Commands
Defines a link to an SNA host over Token Ring, Ethernet, FDDI, RSRB, or VDLC connections.
sna vdlc start
To specify that an attempt will be made to connect to the remote resource defined by host name through virtual data-link control (VDLC), use the sna vdlc start global configuration command. To cancel the definition, use the no form of this command.
sna vdlc start host-name
no sna vdlc start host-name
Syntax Description
Defaults
No default behavior or values.
Command Modes
Global configuration
Command History
Usage Guidelines
Before issuing this command, you must enable the correct local SAP with the sna vdlc enable-host command.
Examples
In the following example, SNA Service Point uses virtual data-link control to initiate a connection with the host PU HOST-B:
source-bridge ring-group 99dlsw local-peer peer-id 150.10.16.2dlsw remote-peer 0 tcp 150.10.16.1sna vdlc 99 4000.4500.01f0sna vdlc enable-host lsap 12sna host HOST-B xid-snd 065bbbb0 rmac 4000.7000.01f1 rsap 4 lsap 12 focalpointsna vdlc start HOST-Binterface serial 3description IP connection to dspu7kip address 150.10.16.2 255.255.255.0clockrate 4000000Related Commands
Identifies the local virtual ring and virtual MAC address that will be used to establish SNA host connections over DLSw+ using VDLC.