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MPLS Forwarding Commands
- mpls ip-ttl-propagate
- mpls label range
- show mpls forwarding
- show mpls forwarding exact-route
- show mpls interfaces
- show mpls label range
- show mpls label table
- show mpls lsd applications
- show mpls lsd clients
- show mpls traffic-eng fast-reroute database
- show mpls traffic-eng fast-reroute log
mpls ip-ttl-propagate
To configure the behavior controlling the propagation of the IP Time-To-Live (TTL) field to and from the MPLS header, use the mpls ip-ttl-propagate command in global configuration mode. To return to the default behavior, use the no form of this command.
Syntax Description
disable
Disables the propagation of IP TTL to and from the MPLS header for both forwarded and local packets.
forwarded
(Optional) Disables the propagation of IP TTL to and from the MPLS headed for only the forwarded packets. This prevents the traceroute command from displaying the MPLS-enabled nodes beyond the device under the configuration.
local
(Optional) Disables the propagation of IP TTL to the MPLS header for only locally generated packets. This prevents the traceroute command from displaying the MPLS-enabled nodes beyond the device under the configuration.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
By default, the IP TTL is propagated to the MPLS header when IP packets enter the MPLS domain. Within the MPLS domain, the MPLS TTL is decremented at each MPLS hop. When an MPLS encapsulated IP packet exits the MPLS domain, the MPLS TTL is propagated to the IP header. When propagation is disabled, the MPLS TTL is set to 255 during the label imposition phase and the IP TTL is not altered.
Task ID
Examples
The following example shows how to disable IP TTL propagation:
RP/0/RP0/CPU0:router(config)# mpls ip-ttl-propagate disableThe following example shows how to disable IP TTL propagation for forwarded MPLS packets:
RP/0/RP0/CPU0:router(config)# mpls ip-ttl-propagate disable forwardedThe following example shows how to disable IP TTL propagation for locally generated MPLS packets:
RP/0/RP0/CPU0:router(config)# mpls ip-ttl-propagate disable localmpls label range
To configure the dynamic range of local labels available for use on packet interfaces, use the mpls label range command in global configuration mode. To return to the default behavior, use the no form of this command.
Syntax Description
table table-id
Identifies a specific label table; the global label table has table-id = 0. If no table is specified, the global table is assumed. Currently, you can specify table 0 only.
minimum
Smallest allowed label in the label space. Default is 16000.
maximum
Largest allowed label in the label space. Default is 1048575.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
After configuring the mpls label range command, restart the router for the configuration to take effect.
The label range defined by the mpls label range command is used by all MPLS applications that allocate local labels (for dynamic label switching Label Distribution Protocol [LDP], MPLS traffic engineering, and so on).
Labels 0 through 15 are reserved by the Internet Engineering Task Force (IETF) (see the draft-ietf-mpls-label-encaps-07.txt for details) and cannot be included in the range using the mpls label range command.
Labels 16 through 15999 are reserved for Layer 2 VPN static pseudowires. You should not configure Layer 2 VPN static pseudowires which fall within the dynamic range. If more Layer 2 VPN static pseudowires are required, restrict the dynamic label range using this configuration.
Task ID
Examples
The following example shows how to configure the size of the local label space using a minimum of 16200 and a maximum of 120000:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# mpls label range 16200 120000show mpls forwarding
To display the contents of the MPLS Label Forwarding Information Base (LFIB), use the show mpls forwardingcommand in EXEC mode.
show mpls forwarding [detail] [ hardware { ingress | egress } ] [ interface type interface-path-id ] [ location node-id ] [ labels low-value [high-value] ] [ prefix { network/mask | ipv4 unicast network/mask } ] [private] [summary] [ tunnels tunnel-id ] [ vrf vrf-name ]
Syntax Description
detail
(Optional) Displays information in long form (includes length of encapsulation, length of Media Access Control [MAC] string, maximum transmission unit [MTU], Packet switched, and label stack).
hardware
(Optional) Displays the hardware location entry.
ingress
(Optional) Reads information from the ingress PSE.
egress
(Optional) Reads information from the egress PSE.
interface
(Optional) Displays information for the specified interface.
type
Interface type. For more information, use the question mark (?) online help function.
interface-path-id
Physical interface or a virtual interface.
Note Use the show interfaces command to see a list of all possible interfaces currently configured on the router.
For more information about the syntax for the router, use the question mark (?) online help function.
labels low-value [high-value]
(Optional) Entries with a local labels range. Ranges for both low-value and high-value are 0 to 1048575.
location node-id
(Optional) Displays hardware resource counters on the designated node.
prefix network/mask /length
(Optional) Displays the destination address and mask/prefix length.
Note The forward slash (/) between network and mask is required.
ipv4 unicast
(Optional) Displays the IPv4 unicast address.
private
(Optional) Displays private information.
summary
(Optional) Displays summarized information.
tunnels tunnel-id
(Optional) Displays entries either for a specified label switch path (LSP) tunnel or all LSP tunnel entries.
vrf vrf-name
(Optional) Displays entries for VPN routing and forwarding (VRF).
Command History
Usage Guidelines
The optional keywords and arguments described allow specification of a subset of the entire MPLS forwarding table.
The node-id argument is entered in the rack/slot/module notation.
Task ID
Examples
The following sample output is from the show mpls forwarding command using the location keyword and a specific node ID:
RP/0/RP0/CPU0:router# show mpls forwarding location 0/2/CPU0 Local Outgoing Outgoing Next Hop Bytes Label Label Interface Switched ------ ----------- ------------ --------------- --------------------------- 16000 Unlabelled ce01::ce01/128[V] Gi0/1/0/0 ce01:10::2 0 16001 Aggregate router: Per-VRF Aggr[V] \ router 0 16021 16020 P2MP TE:10 Gi0/2/0/3 172.99.1.2 13912344 16040 P2MP TE:10 Gi0/2/0/3 172.99.2.2 13912344 16045 P2MP TE:10 PO0/1/0/4 172.16.1.2 13912344The following sample output shows detailed information for the LSP tunnels:
RP/0/RP0/CPU0:router# show mpls forwarding prefix 10.241.4.0/24 detail Local Outgoing Prefix Outgoing Next Hop Bytes Label Label or ID Interface Switched ------ ----------- ------------------ ------------ --------------- ------------ 16057 16058 10.241.4.0/24 Gi0/1/0/23 10.114.4.11 0 Updated May 10 20:00:15.983 MAC/Encaps: 14/18, MTU: 9202 Label Stack (Top -> Bottom): { 16058 } Packets Switched: 0 16058 10.241.4.0/24 Te0/4/0/0 10.114.8.11 0 Updated May 10 20:00:15.983 MAC/Encaps: 14/18, MTU: 9086 Label Stack (Top -> Bottom): { 16058 } Packets Switched: 0The following sample output shows the number of P2MP TE heads and midpoints and the number of P2MP route updates that are received from the MRIB from the summary keyword:
RP/0/RP0/CPU0:router# show mpls forwarding summary Forwarding entries: Label switching: 91647 MPLS TE tunnel head: 1351, protected: 1 MPLS TE midpoint: 0, protected: 0 MPLS TE internal: 1351, protected: 1 MPLS P2MP TE tunnel head: 499 MPLS P2MP TE tunnel midpoint/tail: 999 Forwarding updates: messages: 3925 p2p updates: 229115 p2mp updates: 13519 add/modify:12020, deletes:1499, dropped:0 (iir trigger drops:0)) Labels in use: Reserved: 3 Lowest: 0 Highest: 112979 Deleted stale label entries: 0
This table describes the significant fields shown in the display.
Table 1 show mpls forwarding Field DescriptionsField
Description
Local Label
Label assigned by this router.
Outgoing Label
- Unlabeled
No label for the destination from the next hop, or label switching is not enabled on the outgoing interface.
- Pop Label
Next hop advertised an implicit-null label for the destination.
Prefix or Tunnel ID
Address or tunnel to which packets with this label are going.
Outgoing Interface
Interface through which packets with this label are sent.
Next Hop
IP address of neighbor that assigned the outgoing label.
Bytes Switched
Number of bytes switched with this incoming label.
TO
Timeout: Indicated by an “*” if entry is being timed out in forwarding.
Mac/Encaps
Length in bytes of Layer 2 header, and length in bytes of packet encapsulation, including Layer 2 header and label header.
MTU
MTU1 of labeled packet.
Label Stack
All the outgoing labels on the forwarded packet.
Packets Switched
Number of packets switched with this incoming label.
Label switching
Number of Label switching LFIB2 forwarding entries.
IPv4 label imposition
Number of IPv4 label imposition forwarding entries (installed at ingress LSR).
MPLS TE tunnel head
Number of forwarding entries (installed at ingress LSR) on MPLS TE tunnel head.
MPLS TE fast-reroute
Number of forwarding entries (installed at PLR) for MPLS-TE fast reroute.
Forwarding updates
Number of forwarding updates sent from LSD (RP/DRP) to LFIB/MPLS (RP/DRP/LC) using BCDL mechanism, indicating the total number of updates and total number of BCDL messages.
Labels in use
Local labels in use (installed in LFIB). These usually indicate the lowest and highest label in use (allocated by applications). Furthermore, some reserved labels, such as explicit-nullv4, explicit-nullv6, are installed in the forwarding plane. The label range is 0 to 15.
1 MTU = Maximum Transmission Unit.2 LFIB = Label Forwarding Information Base.show mpls forwarding exact-route
To display the exact path for the source and destination address pair, use the show mpls forwarding exact-route command in EXEC mode.
show mpls forwarding exact-route label label-number { bottom-label value | ipv4 source-address destination-address | ipv6source-addressdestination-address } [detail] [ protocol protocol source-port source-port destination-port destination-port ingress-interface type interface-path-id ] [ location node-id ] [ policy-class value ] [ hardware { ingress | egress } ]
Syntax Description
label label-number
Displays the exact path for a source and destination address pair.
bottom-label value
Displays the bottom label value. Range is 0 to 1048575.
ipv4 source-address destination-address
Displays the exact path for IPv4 payload. The IPv4 source address in x.x.x.x format. The IPv4 destination address in x.x.x.x format.
ipv6 source-address destination-address
Displays the exact path for IPv6 payload. The IPv6 source address in x:x::x format. The IPv6 destination address in x:x::x format.
detail
(Optional) Displays detailed information.
protocol protocol
(Optional) Displays the specified protocol for the route.
source-port source-port
Sets the UDP source port. The range is from 0 to 65535.
destination-port destination-port
Sets the UDP destination port. The range is from 0 to 65535.
ingress-interface
Sets the ingress interface.
type
Interface type. For more information, use the question mark (?) online help function.
interface-path-id
Physical interface or a virtual interface.
Note Use the show interfaces command to see a list of all possible interfaces currently configured on the router.
For more information about the syntax for the router, use the question mark (?) online help function.
location node-id
(Optional) Displays hardware resource counters on the designated node.
policy-class value
(Optional) Displays the policy-based tunnel selection (PBTS) to direct traffic into specific TE tunnels. The policy-class attribute maps the correct traffic class to this policy. The range for the policy-class value is from 1 to 7.
hardware
(Optional) Displays the hardware location entry.
ingress
(Optional) Reads information from the ingress PSE.
egress
(Optional) Reads information from the egress PSE.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
The show mpls forwarding exact-route command displays information in long form and includes the following information:
Task ID
Examples
The following shows a sample output from the show mpls forwarding exact-route command:
RP/0/RP0/CPU0:router# show mpls forwarding exact-route label 16000 ipv4 10.74.1.6 127.0.0.15 protocol tcp source-port 3503 destination-port 3503 ingress-interface pos 0/3/4/3 Local Outgoing Prefix Outgoing Next Hop Bytes Label Label or ID Interface Switched ------ ----------- ------------------ ------------ --------------- ------------ 16000 16001 5.5.5.5/32 PO0/1/5/1 1.24.1.192 N/A Via: PO0/1/5/1, Next Hop: point2point MAC/Encaps: 4/8, MTU: 1500 Label Stack (Top -> Bottom): { 16001 }
This table describes the significant fields shown in the display.
Table 2 show mpls forwarding exact-route Field DescriptionsField
Description
Local Label
Label assigned by this router.
Outgoing Label
- Unlabeled
No label for the destination from the next hop, or label switching is not enabled on the outgoing interface.
- Pop Label
Next hop advertised an implicit-null label for the destination.
Prefix or Tunnel ID
Address or tunnel to which packets with this label are going.
Outgoing Interface
Interface through which packets with this label are sent.
Next Hop
IP address of neighbor that assigned the outgoing label.
Bytes Switched
Number of bytes switched with this incoming label.
TO
Timeout: Indicated by an “*” if entry is being timed out in forwarding.
MAC/Encaps
Length in bytes of Layer 2 header, and length in bytes of packet encapsulation, including Layer 2 header and label header.
MTU
MTU3 of labeled packet.
Label Stack
All the outgoing labels on the forwarded packet.
Packets Switched
Number of packets switched with this incoming label.
Label switching
Number of Label switching LFIB4 forwarding entries.
IPv4 label imposition
Number of IPv4 label imposition forwarding entries (installed at ingress LSR).
MPLS TE tunnel head
Number of forwarding entries (installed at ingress LSR) on MPLS TE tunnel head.
MPLS TE fast-reroute
Number of forwarding entries (installed at PLR) for MPLS-TE fast reroute.
Forwarding updates
Number of forwarding updates sent from LSD (RP/DRP) to LFIB/MPLS (RP/DRP/LC) using BCDL mechanism, indicating the total number of updates and total number of BCDL messages.
Labels in use
Local labels in use (installed in LFIB). These usually indicate the lowest and highest label in use (allocated by applications). Furthermore, some reserved labels, such as explicit-nullv4, explicit-nullv6, are installed in the forwarding plane. The label range is 0 to 15.
3 MTU = Maximum Transmission Unit.4 LFIB = Label Forwarding Information Base.show mpls interfaces
To display information about one or more interfaces that have been configured for MPLS, use the show mpls interfaces command in EXEC mode.
Syntax Description
type
(Optional) Interface type. For more information, use the question mark (?) online help function.
interface-path-id
Physical interface or a virtual interface.
Note Use the show interfaces command to see a list of all possible interfaces currently configured on the router.
For more information about the syntax for the router, use the question mark (?) online help function.
location node-id
(Optional) Displays hardware resource counters on the designated node.
detail
(Optional) Displays detailed information for the designated node.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
This command displays MPLS information about a specific interface or about all interfaces where MPLS is configured.
Task ID
Examples
The following shows a sample output from the show mpls interfaces command:
RP/0/RP0/CPU0:router# show mpls interfaces Interface LDP Tunnel Enabled -------------------------- -------- -------- -------- POS0/4/0/0 Yes Yes Yes POS0/4/0/1 Yes Yes Yes POS0/4/0/2 Yes Yes YesThe following shows a sample output from the show mpls interfaces command using the detail keyword:
RP/0/RP0/CPU0:router# show mpls interfaces detail Interface POS0/4/0/0: LDP labelling enabled LSP labelling enabled (TE-Control) MPLS enabled MTU = 4474 Interface POS0/4/0/1: LDP labelling enabled LSP labelling enabled (TE-Control) MPLS enabled MTU = 4474 Interface POS0/4/0/2: LDP labelling enabled LSP labelling enabled (TE-Control) MPLS enabled MTU = 4474The following shows a sample output from the show mpls interfaces command using the location keyword:
RP/0/RP0/CPU0:router# show mpls interfaces location pos 0/4/0/0 Interface LDP Tunnel Enabled -------------------------- -------- -------- -------- POS0/4/0/0 Yes Yes Yes RP/0/RP0/CPU0:router# show mpls interfaces pos 0/4/0/0 detail Interface POS0/4/0/0: LDP labelling enabled LSP labelling enabled (TE-Control) MPLS enabled MTU = 4474
This table describes the significant fields in the sample display.
Table 3 show mpls interfaces Command Field DescriptionsField
Description
LDP
State of LDP labelling.
Tunnel
State of LSP Tunnel labelling.
MTU
MTU5 of labeled packet.
Caps
Capsulation switching chains installed on an interface.
M
MPLS switching capsulation/switching chains are installed on the interface and are ready to switch MPLS traffic.
5 MTU = Maximum Transmission Unit.show mpls label range
To display the range of local labels available for use on packet interfaces, use theshow mpls label range command in EXEC mode.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
You can use the show mpls label range command to configure a range for local labels that is different from the default range.
Task ID
Examples
The following shows a sample output from the show mpls label range command:
RP/0/RP0/CPU0:router# show mpls label range Range for dynamic labels: Min/Max: 16000/144000show mpls label table
To display the local labels contained in the MPLS label table, use the show mpls label table command in EXEC mode.
show mpls label table table-index [ application application ] [ label label-value ] [summary] [detail]
Syntax Description
table-index
Index of the label table to display. The global label table is 0. Currently, you can specify table 0 only.
application application
(Optional) Displays all labels owned by the selected application. Options are: bgp-ipv4, bgp-spkr, bgp-vpn-ipv4, internal, ldp, none, l2vpn, static, te-control, te-link, and test.
label label-value
(Optional) Displays a selected label based on the label value. Range is 0 to 1048575.
summary
(Optional) Displays a summary of local labels.
detail
(Optional) Displays detailed information for the MPLS label table.
Command History
Release
Modification
Release 3.9.0
The detail keyword was added.
Release 5.0.0 This command was introduced.
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Note
Labels 16 to 15999 are reserved for static Layer 2 VPN pseudowires.
Task ID
Examples
The following shows a sample output from the show mpls label table command:
RP/0/RP0/CPU0:router# show mpls label table 0 Table Label Owner State Rewrite ----- ------- ---------- ------ ------- 0 0 LSD InUse Yes 0 1 LSD InUse Yes 0 2 LSD InUse Yes 0 3 LSD InUse Yes 0 16 TE-Link InUse Yes
This table describes the significant fields shown in the display.
Table 5 show mpls label table Command Field DescriptionsField
Description
Table
Table ID.
Label
Label index.
Owner
Application that allocated the label. All labels displaying “InUse” state have an owner.
State
- InUse
Label allocated and in use by an application.
- Alloc
Label allocated but is not yet in use by an application.
- Pend
Label was in use by an application that has terminated unexpectedly, and the application has not reclaimed the label.
- Pend-S
Label was in use by an application, but the MPLS LSD (Label Switching Database) server has recently restarted and the application has not reclaimed the label.
Rewrite
Number of initiated rewrites.
show mpls lsd applications
To display the MPLS applications registered with the MPLS Label Switching Database (LSD) server, use the show mpls lsd applications command in EXEC mode.
Syntax Description
application application
(Optional) Displays all labels owned by the selected application. Options are: bgp-ipv4, bgp-spkr, bgp-vpn-ipv4, internal, ldp, none, l2vpn, static, te-control, te-link, and test.
Command History
Release
Modification
Release 3.9.0
The application keyword was added.
Release 5.0.0 This command was introduced.
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
MPLS applications include Traffic Engineering (TE) control, TE Link Management, and label distribution protocol (LDP). The application must be registered with MPLS LSD for its features to operate correctly. All applications are clients (see the show mpls lsd clients command), but not all clients are applications.
Task ID
Examples
The following shows a sample output from the show mpls lsd applications command:
RP/0/RP0/CPU0:router# show mpls lsd applications Type State RecoveryTime Node ------------ -------- ------------ ------------ LDP Active 300 0/0/CPU0 TE-Control Active 100 0/0/CPU0 TE-Link Active 600 0/0/CPU0
This table describes the significant fields shown in the display.
Table 6 show mpls lsd applications Command Field DescriptionsField
Description
Type
LSD application type.
State
- Active
Application registered with MPLS LSD and is functioning correctly.
- Recover
Application registered with MPLS LSD and is recovering after recently restarting. In this state, the RecoveryTime value indicates how many seconds are left before the application becomes active.
- Zombie
Application not reregistered after an unexpected termination. In this case, RecoveryTime indicates how many seconds are left before MPLS LSD gives up on the application.
RecoveryTime
Seconds remaining before MPLS LSD gives up or resumes the application.
Node
Node expressed in standard rack/slot/module notation.
show mpls lsd clients
To display the MPLS clients connected to the MPLS Label Switching Database (LSD) server, use the show mpls lsd clients command in EXEC mode.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
MPLS clients include Traffic Engineering (TE) Control, TE Link Management, Label Distribution Protocol (LDP), and Bulk Content Downloader (BCDL) Agent. Not all clients are applications (see the show mpls lsd applications command), but all applications are clients.
Task ID
Examples
The following shows a sample output from the show mpls lsd clients command:
RP/0/RP0/CPU0:router# show mpls lsd clients Id Services Node -- -------------------- ------------ 0 BA(p=none) 0/0/CPU0 1 A(TE-Link) 0/0/CPU0 2 A(LDP) 0/0/CPU0 3 A(TE-Control) 0/0/CPU0The following table describes the significant fields shown in the display.
Table 7 show mpls lsd clients Command Field Descriptions Field
Description
Id
Client identification number.
Services
A(xxx) means that this client is an application and xxx is the application name, BA(yyy) means that this client is a BCDL Agent and yyy is expert data. Depending on system conditions, there can be multiple BCDL Agent clients (this is normal).
Node
Node expressed in standard rack/slot/module notation.
show mpls traffic-eng fast-reroute database
To display the contents of the fast reroute (FRR) database, use the show mpls traffic-eng fast-reroute database command in EXEC mode.
show mpls traffic-eng fast-reroute database [ip-address] [ ip-address /length ] [ afi-all { safi-all | unicast } { ip-address | ip-address/length } ] [backup-interface] [ tunnel tunnel -id ] [unresolved] [ interface type interface-path-id ] [ ipv4 { safi-all | unicast } { ip-address | ip-address/length } ] [ labels low-number high-number ] [ state { active | complete | partial | ready } ] [ role { head | midpoint } ] [summary] [ location node-id ]
Syntax Description
ip-address
(Optional) IP address of the destination network.
ip-address/length
(Optional) Bit combination indicating the portion of the IP address that is being used for the subnet address.
afi-all
(Optional) Returns data for all specified address family identifiers.
safi-all
(Optional) Returns data for all sub-address family identifiers.
unicast
(Optional) Returns unicast data only.
backup-interface
(Optional) Displays entries with the specified backup interface.
tunnel tunnel-id
(Optional) Tunnel and tunnel ID to which packets with this label are going. The summary suboption is available.
unresolved
(Optional) Displays entries whose backup interface has not yet been fully resolved.
interface
(Optional) Displays entries with this primary outgoing interface. The summary keyword is available.
type
(Optional) Interface type. For more information, use the question mark (?) online help function.
interface-path-id
Physical interface or a virtual interface.
Note Use the show interfaces command to see a list of all possible interfaces currently configured on the router.
For more information about the syntax for the router, use the question mark (?) online help function.
ipv4
(Optional) Displays only IPv4 data.
labels
(Optional) Displays database entries that possess in-labels assigned by this router (local labels). Specify either a starting value or a range of values. The state suboption is available.
state
- active
FRR rewrite is in the forwarding active database (where it can be placed onto appropriate incoming packets).
- complete
FRR rewrite is assembled, ready or active.
- partial
FRR rewrite is fully created; its backup routing information is still incomplete.
- ready
FRR rewrite was created but is not in the forwarding active state.
role
(Optional) Displays entries associated either with the tunnel head or tunnel midpoint. The summary suboption is available.
summary
(Optional) Displays summarized information about the FRR database.
location node-id
(Optional) Displays hardware resource counters on the designated node.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
For fast reroute (FRR) information in regards to multicast label forwarding, see Multicast Command Reference .
If the location is specified, Fast-Reroute (FRR) entries for both Point-to-Point (P2P) and P2MP tunnels are available. If the location is not specified, only P2P tunnel entries are available.
Task ID
Examples
The following shows a sample output from the show mpls traffic-eng fast-reroute database command:
RP/0/RP0/CPU0:router# show mpls traffic-eng fast-reroute database Tunnel head FRR information: Tunnel Out intf/label FRR intf/label Status ---------- ---------------- ---------------- ------- tt4000 PO0/3/0/0:34 tt1000:34 Ready tt4001 PO0/3/0/0:35 tt1001:35 Ready tt4002 PO0/3/0/0:36 tt1001:36 Ready
Note
The Prefix field indicates the IP address where packets with this label are headed.
The following sample output displays filtering of the FRR database using the backup-interface keyword:
RP/0/RP0/CPU0:router# show mpls traffic-eng fast database backup-interface LSP midpoint FRR information: LSP Identifier Out Intf/ FRR Intf/ Status Label Label ----------------------------- ---------------- ---------------- ------- 10.10.10.10 1006 [54] Gi0/6/5/2:Pop tt1060:Pop ReadyThe following sample output displays the FRR database filtered by the primary outgoing interface:
RP/0/RP0/CPU0:router# show mpls traffic-eng fast-reroute database interface pos0/3/0/0 Tunnel head FRR information: Tunnel Out intf/label FRR intf/label Status ---------- ---------------- ---------------- ------- tt4000 PO0/3/0/0:34 tt1000:34 Ready tt4001 PO0/3/0/0:35 tt1001:35 Ready tt4002 PO0/3/0/0:36 tt1001:36 ReadyThe following sample output displays a summary of the FRR database with the role as head:
RP/0/RP0/CPU0:router# show mpls traffic-eng fast-reroute database role head summary Status Count ---------- ---------- Active 0 Ready 3 Partial 0The following sample output displays summarized information for the FRR database with the role as midpoint:
RP/0/RP0/CPU0:routerr# show mpls traffic-eng fast-reroute database role midpoint summary Status Count ------- ----- Active 0 Ready 2 Partial 0
This table describes the significant fields shown in the display.
Table 8 show mpls traffic-eng fast-reroute database Command Field DescriptionsField
Description
Tunnel
Short form of tunnel interface name.
Out intf/label
- Out interface
Short name of the physical interface through which traffic goes to the protected link.
- Out label
At a tunnel head, this is the label that the tunnel destination device advertises. The value “Unlabeled” indicates that no such label is advertised.
At a tunnel midpoint, this is the label selected by the next hop device. The value “Pop Label” indicates that the next hop is the final hop for the tunnel.
FRR intf/label
- Fast reroute interface
Backup tunnel interface.
- Fast reroute label
At a tunnel head, this is the label that the tunnel tail selected to indicate the destination network. The value “Unlabeled” indicates that no label is advertised.
At a tunnel midpoint, this has the same value as the Out label.
Status
State of the rewrite: partial, ready, or active.
show mpls traffic-eng fast-reroute log
To display a history of fast reroute (FRR) events, use the show mpls traffic-eng fast-reroute log command in EXEC mode.
Syntax Description
interface
(Optional) Displays all FRR events for the selected protected interface.
type
(Optional) Interface type. For more information, use the question mark (?) online help function.
interface-path-id
Physical interface or virtual interface.
Note Use the show interfaces command to see a list of all possible interfaces currently configured on the router.
For more information about the syntax for the router, use the question mark (?) online help function.
location node-id
(Optional) Displays all FRR events that occurred on the selected node.
Command History
Release
Modification
Release 3.9.0
Sample output was modified.
Release 5.0.0 This command was introduced.
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Task ID
Examples
The following shows a sample output from the show mpls traffic-eng fast-reroute log command:
RP/0/RP0/CPU0:router# show mpls traffic-eng fast-reroute log Node Protected LSPs Rewrites When Switching Time Interface (usec) -------- --------- ----- -------- ---------------------- -------------- 0/0/CPU0 PO0/1/0/1 1 1 Feb 27 19:12:29.064000 147
This table describes the significant fields shown in the display.
Table 9 show mpls traffic-eng fast-reroute log Field DescriptionsField
Description
Node
Node address.
Protected Interface
Type and interface-path-id that is being protected.
LSPs
LSP6 associated with each interface being protected.
Rewrites
Number of rewrites initiated on the LSP.
When
Date the interface was protected.
Switching Time
Time required to switch the protected interface in microseconds.
6 LSP = Link-state Packet.
