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MPR-151
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Cisco MPR-151 User Manual

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MPLS Forwarding Commands on Cisco IOS XR Software
This chapter describes the commands that you will use to configure and use Multiprotocol Label Switching (MPLS) forwarding.
For detailed information about MPLS concepts, configuration tasks, and examples, refer to the Cisco IOS XR Multiprotocol Label Switching Configuration Guide.
Cisco IOS XR Multiprotocol Label Switching Command Reference
MPR-151

clear mpls forwarding counters

clear mpls forwarding counters
To clear (set to zero) the MPLS forwarding counters, use the clear mpls forwarding counters command in EXEC mode.
clear mpls forwarding counters
Syntax Description This command has no arguments or keywords.
Command Modes EXEC
Command History
Release Modification
Release 2.0 This command was introduced on the Cisco CRS-1.
Release 3.0 No modification.
Release 3.2 No modification.
Release 3.3.0 No modification.
Usage Guidelines To use this command, you must be in a user group associated with a task group that includes the proper
task IDs. For detailed information about user groups and task IDs, see the Configuring AAA Services on Cisco IOS XR Software module of the Cisco IOS XR System Security Configuration Guide.
Use the clear mpls forwarding counters command to set all MPLS forwarding counters to zero so that you can easily see future changes.
Task ID
Task ID Operations
mpls-te, mpls-ldp, mpls-static read, write, read, write, read, write
Examples The following example shows sample output before and after clearing all counters:
RP/0/RP0/CPU0:router# show mpls forwarding
MPR-152
Local Outgoing Prefix Outgoing Next Hop Bytes T Label Label or ID Interface Switched O
----- -------- ------------- ---------- ------------ --------- ­18 Exp-Null-v4 33.33.33.33/32 PO0/2/0/0 10.1.2.3 1572
RP/0/RP0/CPU0:router# clear mpls forwarding counters RP/0/RP0/CPU0:router# show mpls forwarding
Local Outgoing Prefix Outgoing Next Hop Bytes T Label Label or ID Interface Switched O
----- -------- ------------- ---------- ------------ --------- ­18 Exp-Null-v4 33.33.33.33/32 PO0/2/0/0 10.1.2.3 0
Cisco IOS XR Multiprotocol Label Switching Command Reference
MPLS Forwarding Commands on Cisco IOS XR Software
Related Commands Command Description
show mpls forwarding Displays the contents of MPLS forwarding table.
clear mpls forwarding counters
Cisco IOS XR Multiprotocol Label Switching Command Reference
MPR-153

mpls ip-ttl-propagate

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.
mpls ip-ttl-propagate disable
no mpls ip-ttl-propagate
Syntax Description
Defaults Enabled
Command Modes Global configuration
Command History
Usage Guidelines To use this command, you must be in a user group associated with a task group that includes the proper
disable Stops the propagation of IP TTL to and from the MPLS header.
Release Modification
Release 2.0 This command was introduced on the Cisco CRS-1.
Release 3.0 No modification.
Release 3.2 This command was supported on the Cisco XR 12000 Series Router.
Release 3.3.0 No modification.
task IDs. For detailed information about user groups and task IDs, see the Configuring AAA Services on Cisco IOS XR Software module of the Cisco IOS XR System Security Configuration Guide.
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:
Cisco IOS XR Multiprotocol Label Switching Command Reference
MPR-154
Task ID Operations
mpls-te, mpls-ldp read, write, read, write
RP/0/RP0/CPU0:router(config)# mpls ip-ttl-propagate disable
MPLS Forwarding Commands on Cisco IOS XR Software

mpls label range

To configure the 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.
mpls label range [table table-id] minimum maximum
no mpls label range [table table-id] minimum maximum
mpls label range
Syntax Description
Defaults table-id: 0
Command Modes Global configuration
Command History
table table-id (Optional) 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 16.
maximum Largest allowed label in the label space. Default is 1048575.
minimum: 16
maximum: 1048575
Release Modification
Release 2.0 This command was introduced on the Cisco CRS-1.
Release 3.0 No modification.
Release 3.2 This command was supported on the Cisco XR 12000 Series Router.
Release 3.3.0 No modification.
Usage Guidelines To use this command, you must be in a user group associated with a task group that includes the proper
task IDs. For detailed information about user groups and task IDs, see the Configuring AAA Services on Cisco IOS XR Software module of the Cisco IOS XR System Security Configuration Guide.
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 draft-ietf-mpls-label-encaps-07.txt for details) and cannot be included in the range using the mpls label range command.
Task ID
Task ID Operations
mpls-te, mpls-ldp read, write, read, write
Cisco IOS XR Multiprotocol Label Switching Command Reference
MPR-155
mpls label range
Examples The following example shows how to configure the size of the local label space using a minimum of 200
and a maximum of 120000. The new range takes effect immediately. Labels outside the current range and which are allocated by MPLS applications remain in circulation until released.
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# mpls label range 200 120000
Related Commands Command Description
show mpls label range Displays the range of the MPLS local label space.
MPR-156
Cisco IOS XR Multiprotocol Label Switching Command Reference
MPLS Forwarding Commands on Cisco IOS XR Software

show mpls forwarding

show mpls forwarding
To display the contents of the MPLS Label Forwarding Information Base (LFIB), use the show mpls forwarding command in EXEC mode.
show mpls forwarding [debug | detail | interface type instance | labels value | location | prefix
[network/mask | length] | private | summary | tunnels]
Syntax Description debug (Optional) Displays the failure reason if “?” is displayed in the “Byte
Switched” field of output. The typical reasons for failure to obtain statistics include Communication Error b/w global and per-node forwarding process, No such entry in per-node forwarding, and H/W stats error.
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).
interface (Optional) Displays information for the specified interface.
type Interface type. For more information, use the question mark (?) online help
function.
instance Either a physical interface instance or a virtual interface instance as follows:
• Physical interface instance. Naming notation is rack/slot/module/port
and a slash between values is required as part of the notation.
–
rack: Chassis number of the rack.
–
slot: Physical slot number of the modular services card or line card.
–
module: Module number. A physical layer interface module (PLIM) is always 0.
–
port: Physical port number of the interface.
Note In references to a Management Ethernet interface located on a route
processor card, the physical slot number is alphanumeric (RP0 or RP1) and the module is CPU0. Example: interface MgmtEth0/RP1/CPU0/0.
• Virtual interface instance. Number range varies depending on interface
type.
For more information about the syntax for the router, use the question mark (?) online help function.
labels value (Optional) Entries with a local labels range.
location node-id (Optional) Displays hardware resource counters on the designated node.
The node-id argument is entered in the rack/slot/module notation.
prefix network/mask | length
(Optional) Destination address and mask/prefix length.
Note The forward slash (/) between network and mask is required.
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.
Cisco IOS XR Multiprotocol Label Switching Command Reference
MPR-157
show mpls forwarding
Command Modes EXEC
Command History
Release Modification
Release 2.0 This command was introduced on the Cisco CRS-1.
Release 3.0 No modification.
Release 3.2 This command was supported on the Cisco XR 12000 Series Router.
Release 3.3.0 No modification.
Usage Guidelines To use this command, you must be in a user group associated with a task group that includes the proper
task IDs. For detailed information about user groups and task IDs, see the Configuring AAA Services on Cisco IOS XR Software module of the Cisco IOS XR System Security Configuration Guide.
The optional keywords and arguments described allow specification of a subset of the entire MPLS forwarding table.
Task ID
Task ID Operations
mpls-te or mpls-ldp or mpls-static read, read, read
Examples The following is sample output from the show mpls forwarding command:
RP/0/RP0/CPU0:router# show mpls forwarding
Local Outgoing Prefix Outgoing Next Hop Bytes T Label Label or ID Interface Switched O
------ ----------- ------------------ --------- --------------- ------------ ­22 Pop Label 10.1.2.0/24 PO0/1/0/0 10.1.1.2 0 23 Pop Label 10.1.3.0/24 PO0/1/0/0 10.1.1.2 0 24 Pop Label 22.22.22.22/32 PO0/1/0/0 10.1.1.2 0 25 Unlabeled 33.33.33.33/32 tt13 point2point 0
The following is sample output from the show mpls forwarding command using the detail keyword:
RP/0/RP0/CPU0:router# show mpls forwarding detail
Local Outgoing Prefix Outgoing Next Hop Bytes T Label Label or ID Interface Switched O
------ ----------- ----------------- ------------ --------------- ----------- ­26 Pop Label 100.10.20.2/32 PO0/4/0/4 142.50.32.2 0 MAC/Encaps: 4/8, MTU: 4470 Label Stack (Top -> Bottom): { Imp-Null } Packets Switched: 0 Installed: Jul 22 10:41:13.521 (3d23h ago)
<======================================**
Owner: LDP
<====================================================================**
Pop Label 100.10.20.2/32 PO0/4/0/5 142.50.36.2 0 MAC/Encaps: 4/8, MTU: 4470 Label Stack (Top -> Bottom): { Imp-Null } Packets Switched: 0 Installed: Jul 22 10:41:13.521 (3d23h ago)
<======================================**
MPR-158
Cisco IOS XR Multiprotocol Label Switching Command Reference
MPLS Forwarding Commands on Cisco IOS XR Software
Owner: LDP
<====================================================================**
The following is sample output from the show mpls forwarding command using the location keyword and a specific node ID:
RP/0/RP0/CPU0:router# show mpls forwarding location 0/1/CPU0
Local Outgoing Outgoing Next Hop Bytes Label Label Interface Switched
------ ----------- ------------ --------------- -----------­22 Pop Label PO0/1/0/0 10.1.1.2 0 23 Pop Label PO0/1/0/0 10.1.1.2 0 24 Pop Label PO0/1/0/0 10.1.1.2 0 25 Unlabeled tt13 point2point 0
The following is sample output from the show mpls forwarding command using the tunnels keyword:
RP/0/RP0/CPU0:router# show mpls forwarding tunnels
Tunnel Outgoing Outgoing Next Hop Bytes Name Label Interface Switched
-------- ----------- ------------ --------------- -----------­tt13 18 PO0/1/0/0 10.1.1.2 13200
show mpls forwarding
The following is sample output from the show mpls forwarding command using the summary keyword:
RP/0/RP0/CPU0:router# show mpls forwarding summary
Forwarding entries: Label switching: 4 IPv4 label imposition: 4 MPLS TE tunnel head: 1 MPLS TE fast-reroute: 0 Forwarding updates: 42 updates, 28 messages Labels in use: Reserved: 4 Lowest: 22 Highest: 25
Table 37 describes the significant fields shown in the display.
Table 37 show mpls forwarding Field Descriptions
Field Description
Local Label Label assigned by this router.
Outgoing Label Label assigned by the next hop or downstream peer. Some of the entries that
display in this column are:
• 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.
Cisco IOS XR Multiprotocol Label Switching Command Reference
MPR-159
show mpls forwarding
Table 37 show mpls forwarding Field Descriptions (continued)
Field Description
TO Timeout: Indicates 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 Maximum transmission unit (MTU) 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 (LFIB) 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
traffic-engineering (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 (range: 0-15), such as explicit-nullv4, explicit-nullv6, are installed in the forwarding plane.
MPR-160
Cisco IOS XR Multiprotocol Label Switching Command Reference
MPLS Forwarding Commands on Cisco IOS XR Software

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.
show mpls interfaces [type instance] [location node-id] | [detail]
show mpls interfaces
Syntax Description
type Interface type. For more information, use the question mark (?) online help
function.
instance Either a physical interface instance or a virtual interface instance as follows:
• Physical interface instance. Naming notation is rack/slot/module/port
and a slash between values is required as part of the notation.
–
rack: Chassis number of the rack.
–
slot: Physical slot number of the modular services card or line card.
–
module: Module number. A physical layer interface module (PLIM) is always 0.
–
port: Physical port number of the interface.
Note In references to a Management Ethernet interface located on a route
processor card, the physical slot number is alphanumeric (RP0 or RP1) and the module is CPU0. Example: interface MgmtEth0/RP1/CPU0/0.
• Virtual interface instance. Number range varies depending on interface
type.
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.
The node-id argument is entered in the rack/slot/module notation
detail (Optional) Displays detailed information for the designated node. The
node-id argument is entered in the rack/slot/module notation.
Command Modes EXEC
Command History
Release Modification
Release 2.0 This command was introduced on the Cisco CRS-1.
Release 3.0 No modification.
Release 3.2 This command was supported on the Cisco XR 12000 Series Router.
Release 3.3.0 No modification.
Cisco IOS XR Multiprotocol Label Switching Command Reference
MPR-161
show mpls interfaces
Usage Guidelines To use this command, you must be in a user group associated with a task group that includes the proper
task IDs. For detailed information about user groups and task IDs, see the Configuring AAA Services on Cisco IOS XR Software module of the Cisco IOS XR System Security Configuration Guide..
This command displays MPLS information about a specific interface or about all interfaces where MPLS is configured.
Task ID
Task ID Operations
mpls-te or mpls-ldp or mpls-static read, read, read
Examples The following is 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 Yes
The following is 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 = 4474
MPR-162
The following is 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/0/0/CPU0:tops2-4#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
Cisco IOS XR Multiprotocol Label Switching Command Reference
MPLS Forwarding Commands on Cisco IOS XR Software
Table 38 describes the significant fields shown in the display.
Table 38 show mpls interfaces Field Descriptions
Field Description
LDP Indicates state of LDP labelling.
Tunnel Indicates state of LSP Tunnel labelling.
MTU Maximum transmission unit (MTU) 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.
show mpls interfaces
Cisco IOS XR Multiprotocol Label Switching Command Reference
MPR-163

show mpls label range

show mpls label range
To display the range of local labels available for use on packet interfaces, use the show mpls label range command in EXEC mode.
show mpls label range
Syntax Description This command has no arguments or keywords.
Command Modes EXEC
Command History
Usage Guidelines To use this command, you must be in a user group associated with a task group that includes the proper
Task ID
Examples The following is sample output from the show mpls label range command:
Release Modification
Release 2.0 This command was introduced on the Cisco CRS-1.
Release 3.0 No modification.
Release 3.2 This command was supported on the Cisco XR 12000 Series Router.
Release 3.3.0 No modification.
task IDs. For detailed information about user groups and task IDs, see the Configuring AAA Services on Cisco IOS XR Software module of the Cisco IOS XR System Security Configuration Guide.
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 Operations
mpls-te or mpls-ldp or mpls-static read, read, read
RP/0/RP0/CPU0:router# show mpls label range
Related Commands
Cisco IOS XR Multiprotocol Label Switching Command Reference
MPR-164
Range for dynamic labels: Min/Max: 16/1048575
Table 39 describes the significant fields shown in the display.
Table 39 show mpls label range Field Descriptions
Field Description
Range for dynamic labels Minimum and maximum allowable range for local labels (which
differs from the default range).
Command Description
mpls label range Configures a range of values for use as local labels.
MPLS Forwarding Commands on Cisco IOS XR Software

show 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]
show mpls label table
Syntax Description
table-index The 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-vpn-ipv4, internal, ldp, none, rsvp, static,
te-control, te-link, test, snmp.
label label value Displays a selected label based on the label value. Range is 0-1048575.
summary Displays a summary of local labels.
Command Modes EXEC
Command History
Release Modification
Release 2.0 This command was introduced on the Cisco CRS-1.
Release 3.0 No modification.
Release 3.2 This command was supported on the Cisco XR 12000 Series Router.
Release 3.3.0 No modification.
Usage Guidelines To use this command, you must be in a user group associated with a task group that includes the proper
task IDs. For detailed information about user groups and task IDs, see the Configuring AAA Services on Cisco IOS XR Software module of the Cisco IOS XR System Security Configuration Guide.
Task ID
Task ID Operations
mpls-te or mpls-ldp or mpls-static read, read, read
Examples The following is 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
Cisco IOS XR Multiprotocol Label Switching Command Reference
MPR-165
show mpls label table
Table 40 describes the significant fields shown in the display.
Table 40 show mpls label table Field Descriptions
Value Description
Table Table ID .
Label Label index.
Owner Application that allocated the label. All labels displaying “InUse” state have an
owner.
State
• In Use—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 Label Switching
Database (LSD) server has recently restarted and the application has not reclaimed the label.
Rewrite Number of initiated rewrites.
Related Commands
The following is sample output from the show mpls label table command using the application keyword:
RP/0/RP0/CPU0:router# show mpls label table 0 application te-link
Table Label Owner State Rewrite
----- ------- ---------- ------ ------­0 16 TE-Link InUse Yes
Command Description
show mpls forwarding Displays entries in the MPLS forwarding table. Label switching entries
are indexed by their local label.
show mpls lsd applications Displays MPLS applications that are registered with the MPLS LSD
server.
MPR-166
Cisco IOS XR Multiprotocol Label Switching Command Reference
MPLS Forwarding Commands on Cisco IOS XR Software

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.
show mpls lsd applications
Syntax Description This command has no arguments or keywords.
Command Modes EXEC
show mpls lsd applications
Command History
Release Modification
Release 2.0 This command was introduced on the Cisco CRS-1.
Release 3.0 No modification.
Release 3.2 This command was supported on the Cisco XR 12000 Series Router.
Release 3.3.0 No modification.
Usage Guidelines To use this command, you must be in a user group associated with a task group that includes the proper
task IDs. For detailed information about user groups and task IDs, see the Configuring AAA Services on Cisco IOS XR Software module of the Cisco IOS XR System Security Configuration Guide.
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
Task ID Operations
mpls-te or mpls-ldp or mpls-static read, read, read
Examples The following is 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
Cisco IOS XR Multiprotocol Label Switching Command Reference
MPR-167
show mpls lsd applications
Table 41 describes the significant fields shown in the display.
Table 41 show mpls lsd applications Field Descriptions
Value Description
Type LSD application type.
State
RecoveryTime Seconds remaining before MPLS LSD gives up or resumes the application.
Node Node expressed in standard rack/slot/module notation.
• 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 re-registered after an unexpected termination. In this
case, RecoveryTime indicates how many seconds are left before MPLS LSD gives up on the application.
Related Commands
Command Description
show mpls lsd clients Displays MPLS clients connected to the MPLS LSD server.
MPR-168
Cisco IOS XR Multiprotocol Label Switching Command Reference
MPLS Forwarding Commands on Cisco IOS XR Software

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.
show mpls lsd clients
Syntax Description This command has no arguments or keywords.
Command Modes EXEC
show mpls lsd clients
Command History
Release Modification
Release 2.0 This command was introduced on the Cisco CRS-1.
Release 3.0 No modification.
Release 3.2 This command was supported on the Cisco XR 12000 Series Router.
Release 3.3.0 No modification.
Usage Guidelines To use this command, you must be in a user group associated with a task group that includes the proper
task IDs. For detailed information about user groups and task IDs, see the Configuring AAA Services on Cisco IOS XR Software module of the Cisco IOS XR System Security Configuration Guide.
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
Task ID Operations
mpls-te or mpls-ldp or mpls-static read, read, read
Examples The following is 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/CPU0
Cisco IOS XR Multiprotocol Label Switching Command Reference
MPR-169
show mpls lsd clients
Table 42 describes the significant fields shown in the display.
Table 42 show mpls lsd applications Field Descriptions
Value 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.
Related Commands
Command Description
show mpls lsd applications Displays MPLS applications registered with the MPLS LSD server.
show mpls lsd clients Displays MPLS clients connected to the MPLS LSD server.
MPR-170
Cisco IOS XR Multiprotocol Label Switching Command Reference
MPLS Forwarding Commands on Cisco IOS XR Software

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 mask | afi-all [safi-all
{ip-address | ip-address mask}] | [unicast {ip-address | ip-adddress mask}] | backup-interface
[tunnel tunnel ID [summary] | unresolved] | interface interface [summary] | ipv4 [safi-all {ip-address | ip-adddress mask}] | [unicast {ip-address | ip-adddress mask}] | labels number [number [state [active | complete | partial | ready]] | [location node-id] | role [head [summary] | midpoint [summary]] | state [active | complete | partial | ready]] | summary]
show mpls traffic-eng fast-reroute database
Syntax Description
ip-address (Optional) IP address of the destination network.
ip-address mask (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 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 suboption is available.
ipv4 (Optional) Displays IPv4 data only.
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.
location node-id (Optional) Displays hardware resource counters on the designated node. The
node-id argument is entered in the rack/slot/module notation.
role (Optional) Displays entries associated either with the tunnel head or tunnel
midpoint. The summary suboption is available.
state (Optional) Filter the database according to the state of the entry:
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.
summary (Optional) Displays summarized information about the FRR database.
Command Modes EXEC
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.
Cisco IOS XR Multiprotocol Label Switching Command Reference
MPR-171
show mpls traffic-eng fast-reroute database
Command History
Release Modification
Release 2.0 This command was introduced on the Cisco CRS-1.
Release 3.0 No modification.
Release 3.2 This command was supported on the Cisco XR 12000 Series Router.
Release 3.3.0 No modification.
Usage Guidelines To use this command, you must be in a user group associated with a task group that includes the proper
task IDs. For detailed information about user groups and task IDs, see the Configuring AAA Services on Cisco IOS XR Software module of the Cisco IOS XR System Security Configuration Guide.
Task ID
Task ID Operations
mpls-te read
Examples The following is sample output from the show mpls traffic-eng fast-reroute database command:
RP/0/RP0/CPU0:router# show mpls traffic-eng fast database
Tunnel head FRR information: Tunnel In-label Out intf/label FRR intf/label Status
---------- -------- ---------------- ---------------- ------­tt4000 Tun hd PO0/3/0/0:34 tt1000:34 Ready tt4001 Tun hd PO0/3/0/0:35 tt1001:35 Ready tt4002 Tun hd PO0/3/0/0:36 tt1001:36 Ready
Table 43 describes the significant fields shown in the display.
Table 43 show mpls traffic-eng fast-reroute database Field Descriptions
Field Description
Tunnel Short form of tunnel interface name.
In-label Label advertised to other routers to signify a particular prefix. The value
“Tun hd” indicates that no label is advertised.
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.
MPR-172
Cisco IOS XR Multiprotocol Label Switching Command Reference
MPLS Forwarding Commands on Cisco IOS XR Software
Table 43 show mpls traffic-eng fast-reroute database Field Descriptions
Field Description
FRR intf/label Fast reroute interface—Backup tunnel interface.
Status State of the rewrite: partial, ready, or active.
The following command displays filtering of the FRR database using the prefix argument:
RP/0/RP0/CPU0:router# show mpls traffic-eng fast-reroute database 175.10.200.253
Tunnel head FRR information: Prefix Tunnel In-label Out intf/label FRR intf/label Status
------------------ ---------- -------- ---------------- ---------------- -------
175.10.200.253/32 tu4000 Tun hd PO0/3/0/0:34 tt1000:34 Ready
show mpls traffic-eng fast-reroute database
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.
Note The Prefix field indicates the IP address where packets with this label are headed.
The following command displays filtering of the FRR database using the backup-interface option:
RP/0/RP0/CPU0:router# show mpls traffic-eng fast database backup-interface tunnel-te 1000
Tunnel head FRR information: Tunnel In-label Out intf/label FRR intf/label Status
---------- -------- ---------------- ---------------- ------­tu4000 Tun hd PO0/3/0/0:34 tt1000:34 Ready
The following command 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 In-label Out intf/label FRR intf/label Status
---------- -------- ---------------- ---------------- ------­tt4000 Tun hd PO0/3/0/0:34 tt1000:34 Ready tt4001 Tun hd PO0/3/0/0:35 tt1001:35 Ready tt4002 Tun hd PO0/3/0/0:36 tt1001:36 Ready
The following command shows 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 0 Other 0
The following command shows the FRR database filtered according to the state of the entries (note that FRR is triggered):
RP/0/RP0/CPU0:router# show mpls traffic-eng fast-reroute database state active
Cisco IOS XR Multiprotocol Label Switching Command Reference
MPR-173
show mpls traffic-eng fast-reroute database
Tunnel head FRR information: Tunnel In-label Out intf/label FRR intf/label Status
---------- -------- ---------------- ---------------- ------­tt4000 Tun hd tt1000:34 Active tt4001 Tun hd tt1001:35 Active tt4002 Tun hd tt1001:36 Active
The following command shows the FRR database with protected midpoints:
RP/0/RP0/CPU0:router# show mpls traffic-eng fast-reroute database
LSP midpoint FRR information: LSP identifier In-label Out intf/label FRR intf/label Status
----------------------------- -------- ---------------- ---------------- -------
10.10.10.10 5000 [48] 18 PO0/1/0/1:18 tt2001:18 Ready
10.10.10.10 8000 [105] 19 PO0/1/0/1:19 tt2000:19 Ready
The following command shows the FRR database filtered according to the inbound label (this output applies only to LSP midpoint entries):
RP/0/RP0/CPU0:router# show mpls traffic-eng fast-reroute database labels 18 18
LSP midpoint FRR information: LSP identifier In-label Out intf/label FRR intf/label Status
----------------------------- -------- ---------------- ---------------- -------
10.10.10.10 5000 [48] 18 PO0/1/0/1:18 tt2001:18 Ready
The following output shows summarized information for the FRR database with the role as midpoint:
RP/0/RP0/CPU0:router# show mpls traffic-eng fast-reroute database role midpoint summary
Status Count
------- ----­Active 0 Ready 2 Partial 0 Other 0
Related Commands Command Description
show mpls traffic-eng fast-reroute log Displays the contents of the FRR event log.
MPR-174
Cisco IOS XR Multiprotocol Label Switching Command Reference
MPLS Forwarding Commands on Cisco IOS XR Software

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.
show mpls traffic-eng fast-reroute log [interface type instance | node node-id]
show mpls traffic-eng fast-reroute log
Syntax Description
interface (Optional) Displays all FRR events for the selected protected interface.
type Interface type. For more information, use the question mark (?) online help
function.
instance Either a physical interface instance or a virtual interface instance as follows:
• Physical interface instance. Naming notation is rack/slot/module/port
and a slash between values is required as part of the notation.
–
rack: Chassis number of the rack.
–
slot: Physical slot number of the modular services card or line card.
–
module: Module number. A physical layer interface module (PLIM) is always 0.
–
port: Physical port number of the interface.
Note In references to a Management Ethernet interface located on a route
processor card, the physical slot number is alphanumeric (RP0 or RP1) and the module is CPU0. Example: interface MgmtEth0/RP1/CPU0/0.
• Virtual interface instance. Number range varies depending on interface
type.
For more information about the syntax for the router, use the question mark (?) online help function.
node node-id Displays all FRR events that occurred on the selected node.
Command Modes EXEC
Command History
Release Modification
Release 2.0 This command was introduced on the Cisco CRS-1.
Release 3.0 No modification.
Release 3.2 This command was supported on the Cisco XR 12000 Series Router.
Release 3.3.0 No modification.
Usage Guidelines To use this command, you must be in a user group associated with a task group that includes the proper
task IDs. For detailed information about user groups and task IDs, see the Configuring AAA Services on Cisco IOS XR Software module of the Cisco IOS XR System Security Configuration Guide.
Cisco IOS XR Multiprotocol Label Switching Command Reference
MPR-175
show mpls traffic-eng fast-reroute log
Task ID
Task ID Operations
mpls-te read
Examples The following is 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 0/1/CPU0 PO0/1/0/1 1 1 Feb 27 19:12:29.060093 165 0/2/CPU0 PO0/1/0/1 1 1 Feb 27 19:12:29.063814 129 0/3/CPU0 PO0/1/0/1 1 1 Feb 27 19:12:29.062861 128
Table 44 describes the significant fields shown in the display.
Table 44 show mpls traffic-eng fast-reroute log Field Descriptions
Value Description
Node Node address.
Protected Interface Type and interface-id that is being protected.
LSPs Link-state packet (LSP) 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 micro-seconds.
Related Commands
Command Description
show mpls traffic-eng fast-reroute database Displays the contents of the FRR database.
MPR-176
Cisco IOS XR Multiprotocol Label Switching Command Reference
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