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Cisco IOS Quality of Service Solutions Command Reference, Release 12.2
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About Cisco IOS Software Documentation
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Using Cisco IOS Software
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Commands: access-list rate-limit -- fair-queue (WFQ)
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Commands: fair-queue aggregate-limit -- ip nbar pdlm
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Commands: ip nbar port-map -- ip rsvp reservation
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Commands: ip rsvp reservation-host -- match ip dscp
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Commands: match ip precedence -- police
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Commands: policy-map -- qos pre-classify
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Commands: queue-limit -- random-detect precedence
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Commands: rate-limit -- set qos-group
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Commands: shape -- show ip nbar pdlm
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Commands: show ip nbar port-map -- show qdm status
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Commands: show queue -- vc-hold-queue
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Feedback
Table Of Contents
show ip nbar protocol-discovery
show ip rsvp atm-peak-rate-limit
show ip nbar port-map
To display the current protocol-to-port mappings in use by Network-Based Application Recognition (NBAR), use the show ip nbar port-map privileged EXEC command.
show ip nbar port-map [protocol-name]
Syntax Description
Defaults
This command displays port assignments for NBAR protocols.
Command Modes
Privileged EXEC
Command History
Usage Guidelines
This command is used to display the current protocol-to-port mappings in use by NBAR. When the ip nbar port-map command has been used, the show ip nbar port-map command displays the ports assigned by the user to the protocol. If no ip nbar port-map command has been used, the show ip nbar port-map command displays the default ports. The protocol-name argument can also be used to limit the display to a specific protocol.
Examples
The following example displays output from the show ip nbar port-map command:
Router# show ip nbar-port-mapport-map bgp udp 179port-map bgp tcp 179port-map cuseeme udp 7648 7649port-map cuseeme tcp 7648 7649port-map dhcp udp 67 68port-map dhcp tcp 67 68port-map dns udp 53port-map dns tcp 53Related Commands
ip nbar-port-map
Configures NBAR to search for a protocol or protocol name using a port number other than the well-known port.
show ip nbar protocol-discovery
To display the statistics gathered by the Network-Based Application Recognition (NBAR) Protocol Discovery feature, use the show ip nbar protocol-discovery privileged EXEC command.
show ip nbar protocol-discovery [interface interface-spec] [stats {byte-count | bit-rate | packet-count}][{protocol protocol-name | top-n number}]
Syntax Description
Defaults
Statistics for all interfaces on which the Protocol Discovery feature is enabled are displayed.
Command Modes
Privileged EXEC
Command History
Usage Guidelines
Use the show ip nbar protocol-discovery command to display statistics gathered by the NBAR Protocol Discovery feature. This command, by default, displays statistics for all interfaces on which protocol discovery is currently enabled. The default output of this command includes, in the following order, input bit rate (in bits per second), input byte count, input packet count, and protocol name.
Protocol discovery can be used to monitor both input and output traffic and may be applied with or without a service policy enabled. NBAR protocol discovery gathers statistics for packets switched to output interfaces. These statistics are not necessarily for packets that exited the router on the output interfaces, because packets may have been dropped after switching for various reasons, including policing at the output interface, access lists, or queue drops.
Examples
The following example displays partial output of the show ip nbar protocol-discovery command for an Ethernet interface:
Router# show ip nbar protocol-discovery interface FastEthernet 6/0FastEthernet6/0Input OutputProtocol Packet Count Packet CountByte Count Byte Count5 minute bit rate (bps) 5 minute bit rate (bps)------------------------ ------------------------ ------------------------igrp 316773 026340105 03000 0streamwork 4437 73672301891 3392133000 0rsvp 279538 14644319106191 6736240 0ntp 8979 7714906550 6942600 0...Total 17203819 15168493619161397327 509670346114179000 6620000Related Commands
ip nbar protocol-discovery
Configures NBAR to discover traffic for all protocols known to NBAR on a particular interface.
show ip rsvp
To display the IP Precedence bit values and type of service (ToS) bit values to be used to mark the ToS byte of the IP headers of all packets in a Resource Reservation Protocol (RSVP) reserved path that conform to or exceed the RSVP flowspec for a given interface, use the show ip rsvp EXEC command.
show ip rsvp {precedence | tos} [interface-name]
Syntax Description
Command Modes
EXEC
Command History
Usage Guidelines
Use this command to show the current IP Precedence (or ToS) bit values set for traffic conforming to or exceeding the RSVP flowspec for an interface if the ip rsvp precedence or ip rsvp tos command was used to configure values for any Enhanced ATM port adapter (PA-A3) interface on the router.
Use this command to show the current ToS bit values set for traffic conforming to or exceeding the Resource Reservation Protocol (RSVP) flowspec for an interface if the ip rsvp tos command was used to configure values for any Enhanced ATM port adapter (PA-A3) interface on the router.
The show ip rsvp tos and show ip rsvp precedence commands are functionally equivalent. They both show the IP Precedence and ToS bit values for all interfaces with RSVP enabled.
To display these values for a given interface exclusively, specify the interface name. If the interface argument is omitted, IP Precedence and ToS bit values are displayed for all interfaces with RSVP enabled.
Examples
The following sample output shows that for the ATM interface 0, the IP Precedence bits are set to 3 for traffic that conforms to the RSVP flowspec and to 2 for traffic that exceeds the flowspec. It also shows that for the ATM interface 2, the ToS bits are set to 6 for traffic that conforms to the RSVP flowspec and to 5 for traffic that exceeds the flowspec.
Router# show ip rsvp precedenceInterface name Precedence Precedence TOS TOSconform exceed conform exceedATM0 3 2 - -Ethernet1 - - - -ATM2 - - 6 5Hssi0 - - - -Loopback0 - - - -The following sample output shows that for the ATM interface 0, the IP Precedence bits are set to 3 for traffic that conforms to the RSVP flowspec and to 2 for traffic that exceeds the flowspec:
Router# show ip rsvp tos ATM0Interface name Precedence Precedence TOS TOSconform exceed conform exceedATM0 3 2 - -Related Commands
show ip rsvp atm-peak-rate-limit
To display the current peak rate limit set for an interface, if any, use the show ip rsvp atm-peak-rate-limit EXEC command.
show ip rsvp atm-peak-rate-limit [interface-name]
Syntax Description
Command Modes
EXEC
Command History
Usage Guidelines
The show ip rsvp atm-peak-rate-limit command displays the configured peak rate using the following notations for brevity:
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Kilobytes is shown as K bytes, for example, 1200 kilobytes is displayed as 1200K bytes.
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If no interface name is specified, configured peak rates for all Resource Reservation Protocol (RSVP)-enabled interfaces are displayed.
Examples
The following example depicts results of the show ip rsvp atm-peak-rate-limit command, presuming that the ATM subinterface 2/0/0.1 was configured with a reservation peak rate limit of 100 KB using the ip rsvp atm-peak-rate-limit command.
The following is sample output from the show ip rsvp atm-peak-rate-limit command using the interface argument:
Router# show ip rsvp atm-peak-rate-limit atm2/0/0.1RSVP: Peak rate limit for ATM2/0/0.1 is 100K bytesThe following samples show output from the show ip rsvp atm-peak-rate-limit command when no interface name is given:
Router# show ip rsvp atm-peak-rate-limitInterface name Peak rate limitEthernet0/1/1 not setATM2/0/0 not setATM2/0/0.1 100KRouter# show ip rsvp atm-peak-rate-limitInterface name Peak rate limitEthernet0/1 not setATM2/1/0 1MATM2/1/0.10 not setATM2/1/0.11 not setATM2/1/0.12 not setRelated Commands
ip rsvp atm-peak-rate-limit
Sets a limit on the peak cell rate of reservations for all newly created RSVP SVCs established on the current interface or any of its subinterfaces.
show ip rsvp installed
To display Resource Reservation Protocol (RSVP)-related installed filters and corresponding bandwidth information, use the show ip rsvp installed EXEC command.
show ip rsvp installed [detail][interface-type interface-number]
Syntax Description
Defaults
This command has no default behavior or values.
Command Modes
EXEC
Command History
Usage Guidelines
The show ip rsvp installed command displays the current installed RSVP filters and the corresponding bandwidth information for a specified interface or all interfaces.
Examples
The following is sample output from the show ip rsvp installed command:
Router# show ip rsvp installedRSVP:RSVP: Ethernet1: has no installed reservationsRSVP: Serial0:kbps To From Protocol DPort Sport Weight Conversation0 224.250.250.1 132.240.2.28 UDP 20 30 128 270150 224.250.250.1 132.240.2.1 UDP 20 30 128 268100 224.250.250.1 132.240.1.1 UDP 20 30 128 267200 224.250.250.1 132.240.1.25 UDP 20 30 256 265200 224.250.250.2 132.240.1.25 UDP 20 30 128 2710 224.250.250.2 132.240.2.28 UDP 20 30 128 269150 224.250.250.2 132.240.2.1 UDP 20 30 128 266350 224.250.250.3 0.0.0.0 UDP 20 0 128 26Table 22 describes the significant fields shown in the display.
show ip rsvp interface
To display Resource Reservation Protocol (RSVP)-related interface information, use the show ip rsvp interface EXEC command.
show ip rsvp interface [interface-type interface-number]
Syntax Description
interface-type
(Optional) Specifies the type of the interface.
interface-number
(Optional) Specifies the number of the interface.
Defaults
This command has no default behavior or values.
Command Modes
EXEC
Command History
Usage Guidelines
The primary purpose of this command is to determine the status of RSVP on an interface.
Use this command to determine if the ip rsvp svc-required command was used to configure an interface or subinterface to tell RSVP that reservations made on that interface are to be serviced by creation of a switched virtual circuit (SVC).
Use this command to determine if the ip rsvp flow-assist command was used to configure an interface to enable RSVP to attach itself to NetFlow.
Use this command to show the current allocation budget and maximum allocatable bandwidth.
Examples
The following sample output from the show ip rsvp interface command shows that for the AT2/0/0 interface RSVP has been informed that reservations made on that interface are to be serviced by creation of an SVC. It also shows that for the AT2/0/1 interface, RSVP is enabled to attach itself to NetFlow.
Router# show ip rsvp interfaceinterface allocate i/f max flow max per/255 UDP IP UDP_IP UDP M/CAT2/0/0 OM 116640K 116640K 0 /255 0 0 0 0 SVCAT2/0/1 OM 116640K 116640K 0 /255 0 0 0 0 FLOWEt1/0 OM 7500K 7500K 0 /255 0 1 0 0The following sample output from the show ip rsvp interface command shows that for the AT3/0/0 interface RSVP has been configured to establish an SVC to service any reservations made on the interface. RSVP-ATM QoS Interworking has not been enabled for Et0/2.
Router# show ip rsvp interfaceinterface allocate i/f max flow max per/255 UDP IP UDP_IP UDP M/CEt0/2 0M 7500K 7500K 0 /255 0 1 0 0AT3/0/0 0M 112320K 112320K 0 /255 0 1 0 0 SVCTable 23 describes the significant fields shown in the display.
Related Commands
show ip rsvp neighbor
To display current Resource Reservation Protocol (RSVP) neighbors, use the show ip rsvp neighbor EXEC command.
show ip rsvp neighbor [interface-type interface-number]
Syntax Description
interface-type
(Optional) Specifies the type of the interface.
interface-number
(Optional) Specifies the number of the interface.
Command Modes
EXEC
Command History
Usage Guidelines
Use this command to show the current RSVP neighbors and identify if the neighbor is using IP, User Datagram Protocol (UDP), or RSVP encapsulation for a specified interface or all interfaces.
Examples
The following is sample output from the show ip rsvp neighbor command:
Router# show ip rsvp neighborInterface Neighbor EncapsulationSe1 132.240.1.49 RSVPTable 24 describes significant fields shown in the display.
show ip rsvp policy cops
To display the policy server addresses, access control list (ACL) IDs, and current state of the router-server connection, use the show ip rsvp policy cops command.
show ip rsvp policy cops [acl]
Syntax Description
[acl]
(Optional) The ACLs whose sessions are governed by Common Open Policy Service (COPS). An ACL can be a number from 1 to 199.
Defaults
This command has no default behavior or values.
Command Modes
EXEC
Command History
Usage Guidelines
If you omit the final keyword of this command (cops), the display reports only on the ACLs and their connection status. This kind of display is shown in the second example in the "Examples" section.
If the server connection has recently broken, this command also displays the reconnection attempt interval.
Examples
The following example shows the full display, using the full command:
Router# show ip rsvp policy copsCOPS/RSVP entry. ACLs: 40 60PDPs: 161.44.135.172Current state: ConnectedCurrently connected to PDP 161.44.135.172, port 0The following example shows the ID for the configured ACLs and their connection status, using the shortened command:
Router# show ip rsvp policyLocal policy: Currently unsupportedCOPS:ACLs: 40 60 . State: CONNECTED.ACLs: 40 160 . State: CONNECTING.Related Commands
show cops servers
Displays the IP address and connection status of the policy servers for which the router is configured.
show ip rsvp request
To display Resource Reservation Protocol (RSVP)-related request information being requested upstream, use the show ip rsvp request EXEC command.
show ip rsvp request [ip-address][detail]
Syntax Description
ip-address
(Optional) IP or group address of the requestor.
detail
(Optional) Specifies additional request information.
Command Modes
EXEC
Command History
Usage Guidelines
Use this command to show the RSVP reservations currently being requested upstream for a specified interface or all interfaces. The received reservations may differ from requests because of aggregated or refused reservations.
Examples
The following is sample output from the show ip rsvp request command:
Router# show ip rsvp requestTo From Pro DPort Sport Next Hop I/F Fi Serv132.240.1.49 132.240.4.53 1 0 0 132.240.3.53 Et1 FF LOADTable 25 describes the significant fields shown in the display.
show ip rsvp reservation
To display Resource Reservation Protocol (RSVP)-related receiver information currently in the database, use the show ip rsvp reservation EXEC command.
show ip rsvp reservation [ip-address][detail]
Syntax Description
ip-address
(Optional) IP or group address of the receiver.
detail
(Optional) Specifies additional reservation information.
Command Modes
EXEC
Command History
Usage Guidelines
Use this command to show the current receiver (RESV) information in the database for a specified interface or all interfaces. This information includes reservations aggregated and forwarded from other RSVP routers.
Examples
The following is sample output from the show ip rsvp reservation command:
Router# show ip rsvp reservationTo From Pro DPort Sport Next Hop I/F Fi Serv132.240.1.49 132.240.4.53 1 0 0 132.240.1.49 Se1 FF LOADTable 26 describes the significant fields shown in the display.
show ip rsvp sbm
To display information about a Subnetwork Bandwidth Manager (SBM) configured for a specific Resource Reservation Protocol (RSVP)-enabled interface or for all RSVP-enabled interfaces on the router, use the show ip rsvp sbm EXEC command.
show ip rsvp sbm [detail] [interface-name]
Syntax Description
Command Modes
EXEC
Command History
12.0(5)T
This command was introduced.
12.1(1)T
This command was integrated into Cisco IOS Release 12.1(1)T. The detail keyword was added.
Usage Guidelines
To obtain SBM configuration information about a specific interface configured to use RSVP, specify the interface name with the show ip rsvp sbm command. To obtain information about all interfaces enabled for RSVP on the router, use the show ip rsvp sbm command without specifying an interface name.
To view the values for the NonResvSendLimit object, use the detail keyword.
Examples
The following example displays information for the RSVP-enabled Ethernet interfaces 1 and 2 on router1:
router1# show ip rsvp sbmInterface DSBM Addr DSBM Priority DSBM Candidate My PriorityEt1 1.1.1.1 70 yes 70Et2 10.2.2.150 100 yes 100The following example displays information about the RSVP-enabled Ethernet interface e2 on router1:
router1# show ip rsvp sbm e2Interface DSBM Addr DSBM Priority DSBM candidate My Prioritye2 10.2.2.150 100 yes 100Table 27 describes the significant fields shown in the display.
The following example displays information about the RSVP-enabled Ethernet interface 2 on router1. In the left column, the local SBM configuration is shown; in the right column, the corresponding information for the current DSBM is shown. In this example, the information is the same because the DSBM won election.
router1# show ip rsvp sbm detailInterface:Ethernet2Local Configuration Current DSBMIP Address:10.2.2.150 IP Address:10.2.2.150DSBM candidate:yes I Am DSBM:yesPriority:100 Priority:100Non Resv Send Limit Non Resv Send LimitRate:500 Kbytes/sec Rate:500 Kbytes/secBurst:1000 Kbytes Burst:1000 KbytesPeak:500 Kbytes/sec Peak:500 Kbytes/secMin Unit:unlimited Min Unit:unlimitedMax Unit:unlimited Max Unit:unlimitedTable 28 describes the significant fields shown in the display.
Related Commands
show ip rsvp sender
To display Resource Reservation Protocol (RSVP) PATH-related sender information currently in the database, use the show ip rsvp sender EXEC command.
show ip rsvp sender [ip-address] [detail]
Syntax Description
ip-address
(Optional) IP or group address of the sender.
detail
(Optional) Specifies additional sender information.
Command Modes
EXEC
Command History
Usage Guidelines
Use this command to show the RSVP sender (PATH) information currently in the database for a specified interface or all interfaces.
Examples
The following is sample output from the show ip rsvp sender command:
Router# show ip rsvp senderTo From Pro DPort Sport Prev Hop I/F132.240.1.49 132.240.4.53 1 0 0 132.240.3.53 Et1132.240.2.51 132.240.5.54 1 0 0 132.240.3.54 Et1Table 29 describes the significant fields shown in this display.
show policy-map
To display the configuration of all classes for a specified service policy map or all classes for all existing policy maps, use the show policy-map EXEC or privileged EXEC command.
show policy-map [policy-map]
Syntax Description
policy-map
(Optional) The name of the service policy map whose complete configuration is to be displayed. The name can be a maximum of 40 characters.
Defaults
All existing policy map configurations are displayed.
Command Modes
EXEC or privileged EXEC
Command History
Usage Guidelines
The show policy-map command displays the configuration of a service policy map created using the policy-map command. You can use the show policy-map command to display all class configurations comprising any existing service policy map, whether or not that service policy map has been attached to an interface.
Examples
The following example displays the contents of the service policy map called po1:
Router# show policy-map po1Policy Map po1 Weighted Fair Queueing Class class1 Bandwidth 937 (kbps) Max thresh 64 (packets) Class class2 Bandwidth 937 (kbps) Max thresh 64 (packets)Class class3 Bandwidth 937 (kbps) Max thresh 64 (packets) Class class4 Bandwidth 937 (kbps) Max thresh 64 (packets) Class class5 Bandwidth 937 (kbps) Max thresh 64 (packets) Class class6 Bandwidth 937 (kbps) Max thresh 64 (packets) Class class7 Bandwidth 937 (kbps) Max thresh 64 (packets) Class class8 Bandwidth 937 (kbps) Max thresh 64 (packets)The following example displays the contents of all policy maps on the router:
Router# show policy-mapPolicy Map poH1 Weighted Fair Queueing Class class1 Bandwidth 937 (kbps) Max thresh 64 (packets) Class class2 Bandwidth 937 (kbps) Max thresh 64 (packets)Class class3 Bandwidth 937 (kbps) Max thresh 64 (packets) Class class4 Bandwidth 937 (kbps) Max thresh 64 (packets) Class class5 Bandwidth 937 (kbps) Max thresh 64 (packets) Class class6 Bandwidth 937 (kbps) Max thresh 64 (packets) Class class7 Bandwidth 937 (kbps) Max thresh 64 (packets) Class class8 Bandwidth 937 (kbps) Max thresh 64 (packets)Policy Map policy2 Weighted Fair Queueing Class class1 Bandwidth 300 (kbps) Max thresh 64 (packets) Class class2 Bandwidth 300 (kbps) Max thresh 64 (packets)Class class3 Bandwidth 300 (kbps) Max thresh 64 (packets) Class class4 Bandwidth 300 (kbps) Max thresh 64 (packets) Class class5 Bandwidth 300 (kbps) Max thresh 64 (packets) Class class6 Bandwidth 300 (kbps) Max thresh 64 (packets)Related Commands
show policy-map class
To display the configuration for the specified class of the specified policy map, use the show policy-map class EXEC or privileged EXEC command.
show policy-map policy-map class class-name
Syntax Description
policy-map
The name of a policy map that contains the class configuration to be displayed.
class-name
The name of the class whose configuration is to be displayed.
Defaults
This command has no default behavior or values.
Command Modes
EXEC or privileged EXEC
Command History
Usage Guidelines
You can use the show policy-map class command to display any single class configuration for any service policy map, whether or not the specified service policy map has been attached to an interface.
Examples
The following example displays configurations for the class called class7 that belongs to the policy map called po1:
Router# show policy-map po1 class class7Class class7 Bandwidth 937 (kbps) Max Thresh 64 (packets)Related Commands
show policy-map interface
To display the configuration of all classes configured for all service policies on the specified interface or to display the classes for the service policy for a specific permanent virtual circuit (PVC) on the interface, use the show policy-map interface EXEC or privileged EXEC command.
show policy-map interface interface-name [vc [vpi/] vci][dlci dlci] [input | output]
Syntax Description
Defaults
This command has no default behavior or values.
Command Modes
EXEC or privileged EXEC
Command History
Usage Guidelines
The show policy-map interface command displays the configuration for classes on the specified interface or the specified PVC only if a service policy has been attached to the interface or the PVC.
You can use the interface-name argument to display output for a PVC only for Enhanced ATM port adapters (PA-A3) that support per-VC queueing.
Examples
This section provides sample output of a typical show policy-map interface command. Depending upon the interface in use and the options enabled, the output you see may vary slightly from the ones shown below. See Table 30 for an explanation of the significant fields that commonly appear in the command output.
The following sample output of the show policy-map interface command displays the statistics for the serial 3/1 interface, to which a service policy called mypolicy (configured as shown below) is attached.
policy-map mypolicyclass voicepriority 128class goldbandwidth 100class silverbandwidth 80random-detectRouter# show policy-map output interface s3/1Serial3/1Service-policy output: mypolicyClass-map: voice (match-all)0 packets, 0 bytes5 minute offered rate 0 bps, drop rate 0 bpsMatch: ip precedence 5Weighted Fair QueueingStrict PriorityOutput Queue: Conversation 264Bandwidth 128 (kbps) Burst 3200 (Bytes)(pkts matched/bytes matched) 0/0(total drops/bytes drops) 0/0Class-map: gold (match-all)0 packets, 0 bytes5 minute offered rate 0 bps, drop rate 0 bpsMatch: ip precedence 2Weighted Fair QueueingOutput Queue: Conversation 265Bandwidth 100 (kbps) Max Threshold 64 (packets)(pkts matched/bytes matched) 0/0(depth/total drops/no-buffer drops) 0/0/0Class-map: silver (match-all)0 packets, 0 bytes5 minute offered rate 0 bps, drop rate 0 bpsMatch: ip precedence 1Weighted Fair QueueingOutput Queue: Conversation 266Bandwidth 80 (kbps)(pkts matched/bytes matched) 0/0(depth/total drops/no-buffer drops) 0/0/0exponential weight: 9mean queue depth: 0class Transmitted Random drop Tail drop Minimum Maximum Markpkts/bytes pkts/bytes pkts/bytes thresh thresh prob0 0/0 0/0 0/0 20 40 1/101 0/0 0/0 0/0 22 40 1/102 0/0 0/0 0/0 24 40 1/103 0/0 0/0 0/0 26 40 1/104 0/0 0/0 0/0 28 40 1/105 0/0 0/0 0/0 30 40 1/106 0/0 0/0 0/0 32 40 1/107 0/0 0/0 0/0 34 40 1/10rsvp 0/0 0/0 0/0 36 40 1/10Class-map: class-default (match-any)0 packets, 0 bytes5 minute offered rate 0 bps, drop rate 0 bpsMatch: anyThe following sample output of the show policy-map interface command displays the statistics for the serial 3/2 interface, to which a service policy called p1 (configured as shown below) is attached. Traffic shaping has been enabled on this interface.
policy-map p1class c1shape average 320000Router# show policy-map output interface s3/2Serial3/2Service-policy output: p1Class-map: c1 (match-all)0 packets, 0 bytes5 minute offered rate 0 bps, drop rate 0 bpsMatch: ip precedence 0Traffic ShapingTarget Byte Sustain Excess Interval Increment AdaptRate Limit bits/int bits/int (ms) (bytes) Active320000 2000 8000 8000 25 1000 -Queue Packets Bytes Packets Bytes ShapingDepth Delayed Delayed Active0 0 0 0 0 noClass-map: class-default (match-any)0 packets, 0 bytes5 minute offered rate 0 bps, drop rate 0 bpsMatch: anyTable 30 describes the significant fields shown in the displays. The fields in the table are grouped according to the relevant QoS feature.
Table 30 show policy-map interface Field Descriptions1
Fields Associated with Classes or Service Policies
Service-policy output
Name of the output service policy applied to the specified interface or VC.
Class-map
Class of traffic being displayed. Output is displayed for each configured class in the policy. The choice for implementing class matches (for example, match-all or match-any) can also appear next to the traffic class.
packets and bytes
Number of packets (also shown in bytes) identified as belonging to the class of traffic being displayed.
offered rate
Rate, in kbps, of packets coming in to the class.
Note
drop rate
Rate, in kbps, at which packets are dropped from the class. The drop rate is calculated by subtracting the number of successfully transmitted packets from the offered rate.
Note
Match
Match criteria specified for the class of traffic. Choices include criteria such as IP precedence, IP DSCP value, MPLS experimental value, access groups, and QoS groups. For more information about the variety of match criteria options available, refer to the chapter "Configuring the Modular Quality of Service Command-Line Interface" in the Cisco IOS Quality of Service Solutions Configuration Guide, Release 12.2.
Fields Associated with Queueing (if Enabled)
Output Queue
The weighted fair queueing (WFQ) conversation to which this class of traffic is allocated.
Bandwidth
Bandwidth, in either kbps or percentage, configured for this class and the burst size.
pkts matched/bytes matched
Number of packets (also shown in bytes) matching this class that were placed in the queue. This number reflects the total number of matching packets queued at any time. Packets matching this class are queued only when congestion exists. If packets match the class but are never queued because the network was not congested, those packets are not included in this total. However, if process switching is in use, the number of packets is always incremented even if the network is not congested.
depth/total drops/no-buffer drops
Number of packets discarded for this class. No-buffer indicates that no memory buffer exists to service the packet.
Fields Associated with Weighted Random Early Detection (WRED) (if Enabled)
exponential weight
Exponent used in the average queue size calculation for a Weighted Random Early Detection (WRED) parameter group.
mean queue depth
Average queue depth based on the actual queue depth on the interface and the exponential weighting constant. It is a fluctuating average. The minimum and maximum thresholds are compared against this value to determine drop decisions.
class
IP precedence level.
Transmitted pkts/bytes
Number of packets (also shown in bytes) passed through WRED and not dropped by WRED.
Note
Random drop pkts/bytes
Number of packets (also shown in bytes) randomly dropped when the mean queue depth is between the minimum threshold value and the maximum threshold value for the specified IP precedence level.
Tail drop pkts/bytes
Number of packets dropped when the mean queue depth is greater than the maximum threshold value for the specified IP precedence level.
Minimum thresh
Minimum threshold. Minimum WRED threshold in number of packets.
Maximum thresh
Maximum threshold. Maximum WRED threshold in number of packets.
Mark prob
Mark probability. Fraction of packets dropped when the average queue depth is at the maximum threshold.
Fields Associated with Traffic Shaping (if Enabled)
Target Rate
Rate used for shaping traffic.
Byte Limit
Maximum number of bytes that can be transmitted per interval. Calculated as follows:
((Bc+Be) /8 ) x 1
Sustain bits/int
Committed burst (Bc) rate.
Excess bits/int
Excess burst (Be) rate.
Interval (ms)
Time interval value in milliseconds (ms).
Increment (bytes)
Number of credits (in bytes) received in the token bucket of the traffic shaper during each time interval.
Queue Depth
Current queue depth of the traffic shaper.
Packets
Total number of packets that have entered the traffic shaper system.
Bytes
Total number of bytes that have entered the traffic shaper system.
Packets Delayed
Total number of packets delayed in the queue of the traffic shaper before being transmitted.
Bytes Delayed
Total number of bytes delayed in the queue of the traffic shaper before being transmitted.
Shaping Active
Indicates whether the traffic shaper is active. For example, if a traffic shaper is active, and the traffic being sent exceeds the traffic shaping rate, a "yes" appears in this field.
1 A number in parentheses may appear next to the service-policy output name, class-map name, and match criteria information. The number is for Cisco internal use only and can be disregarded.
Related Commands
show qdm status
To view the status of the Quality of Service Device Manager (QDM) clients connected to the router, use the show qdm status EXEC command.
show qdm status
Syntax Description
This command has no arguments or keywords.
Defaults
This command has no default behavior or values.
Command Modes
EXEC
Command History
Release 12.1(1)E
This command was introduced.
Release 12.1(5)T
This command was integrated into Cisco IOS Release 12.1(5)T.
Usage Guidelines
Use the show qdm status command to obtain the following information:
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Examples
The following example illustrates the show qdm status output when two QDM clients are connected to the router:
Router# show qdm statusNumber of QDM Clients :2QDM Client v1.0(0.13)-System_1 @ 172.16.0.0 (id:30)connected since 09:22:36 UTC Wed Mar 15 2000QDM Client v1.0(0.12)-System_2 @ 172.31.255.255 (id:29)connected since 17:10:23 UTC Tue Mar 14 2000Related Commands