Table Of Contents
ip rsvp authentication challenge
ip rsvp authentication key-chain
ip rsvp authentication lifetime
ip rsvp authentication window-size
ip rsvp signalling hello reroute
ip rsvp signalling hello reroute state-timeout refresh misses
ip rsvp signalling hello reroute state-timeout refresh interval
I Commands
This chapter describes the Cisco NX-OS Multiprotocol Label Switching commands that begin with I.
import
To import route-map based virtual routing and forwarding (VRF) and virtual router context, use the import command.
import {map [map-name | redist-bgp] | vrf default [maximum-prefix | map]}
Syntax Description
Defaults
1000
Command Modes
Address family configuration
Supported User Rolesnetwork-admin
vdc-adminCommand History
Usage Guidelines
This command does not require the MPLS Services license.
Examples
This example shows how to import virtual router context:
switch# configure terminal
switch(config)# feature mpls l3vpn
switch(config)# vrf context vpn1switch(config-vrf)# rd 1.2:1
switch(config-vrf)# address-family ipv4 unicast
switch(config-vrf-af-ipv4)# route-target import 1:101
switch(config-vrf-af-ipv4)# maximum routes 3000
switch(config-vrf-af-ipv4)# import vrf default map redist-bgp
This example shows how to remove the virtual router context:switch(config-vrf-af-ipv4)# no import vrf default map redist-bgp
Related Commands
Command Descriptionmaximum routes
Configure the maximum number of routes to be allowed in the routing table.
route-target
Create a route-target extended community for a VRF instance.
index
To insert or modifiy a traffic engineering (TE) explicit path entry at a specific index, use the index command. To restore the system to its default condition, use the no form of this command.
index index command
no index index command
Syntax Description
index
Index number. The range is from 1 to 65535.
command
Command that can be the exclude-address keyword or the next-address keyword.
Defaults
None
Command Modes
TE explicit path configuration mode
Supported User Rolesnetwork-admin
vdc-adminCommand History
Usage Guidelines
This command requires the MPLS Services license.
Examples
This example shows how to insert or modifiy a path entry at a specific index:
switch# configure terminal
switch(config)# mpls traffic-eng configuration
switch(config-te)# explicit-path name link5
switch(config-te-expl-path)# index 10 next-address 10.0.0.1
Explicit Path name link5:10: next-address 10.0.0.1switch(config-te-expl-path)#Related Commands
Command Descriptionmpls traffic-eng configuration
Configures the Multiprotocol Label Switching (MPLS) Traffic Engineering Protocol (MPLS-TE).
interface ethernet
To configure an Ethernet interface on which you are enabling the Multiprotocol Label Switching (MPLS) Label Distribution Protocol (LDP), use the interface ethernet command. To return to the default setting, use the no form of this command.
interface ethernet slot/chassis number
no interface ethernet slot/chassis number
Syntax Description
Defaults
None
Command Modes
Interface configuration mode
Supported User Rolesnetwork-admin
vdc-adminCommand History
Usage Guidelines
When you disable the Multiprotocol Label Switching (MPLS) Label Distribution Protocol (LDP) on the device, no LDP commands are available.
This command requires the MPLS Services license.
Examples
This example shows how to configure the Ethernet interface on which you are enabling MPLS LDP:
switch(config)# interface ethernet 2/2
switch(config-if)#Related Commands
Command Descriptionmpls ldp configuration
Configures the Multiprotocol Label Switching (MPLS) Label Distribution Protocol (LDP).
interface tunnel-te
To configure a traffic engineering (TE) interface, use the interface tunnel-te command. To restore the system to its default condition, use the no form of this command.
interface tunnel-te number
no interface tunnel-te number
Syntax Description
Defaults
None
Command Modes
Interface configuration mode
Supported User Rolesnetwork-admin
vdc-adminCommand History
Usage Guidelines
This command requires the MPLS Services license.
Examples
This example shows how to configure a TE interface:
switch# configure terminal
switch(config)# interface tunnel-te 65
switch(config-if-te)#Related Commands
install feature-set mpls
To install feature set Multiprotocol Label Switching (MPLS), use the install feature-set mpls command. To restore the system to its default condition, use the no form of this command.
install feature-set mpls
no install feature-set mpls
Syntax Description
This command has no arguments or keywords.
Defaults
Only in default VDC
Command Modes
Global Configuration mode
Supported User Rolesnetwork-admin
vdc-adminCommand History
Usage Guidelines
This command requires the MPLS Services license.
Examples
This example shows how to install feature set MPLS:
switch# configure terminal
switch(config)# install feature-set mpls
feature set is installed already(0x40aa0011)switch(config)#Related Commands
ip prefix-list
To create a prefix list for Multiprotocol Label Switching (MPLS) Label Distribution Protocol (LDP) label filtering, outbound filtering, or inbound filtering, use the ip prefix-list command. To return to the default setting, use the no form of this command.
ip prefix-list prefix-list {description description | seq number [deny network/length [eq eq-length | ge ge-length | le le-length ] | permit network/length [eq eq-length | ge ge-length]] | deny network/length [eq eq-length | ge ge-length | le le-length]}
no ip prefix-list prefix-list {description description | seq number [deny network/length [eq eq-length | ge ge-length | le le-length ] | permit network/length [eq eq-length | ge ge-length]] | deny network/length [eq eq-length | ge ge-length | le le-length]}
Syntax Description
Defaults
None
Command Modes
Global configuration mode
Supported User Rolesnetwork-admin
vdc-adminCommand History
Usage Guidelines
This command requires the MPLS Services license.
Examples
This example shows how to create an IP prefix list and specifies the prefixes permitted by the prefix list:
switch# configure terminal
switch(config)# ip prefix-list p1 permit 10.0.0.2/32 ge 10
switch(config)#switch# configure terminal
switch(config)# ip prefix-list p1 permit 10.0.0.0/32
switch(config)#Related Commands
Command Descriptionmpls ldp configuration
Configures the Multiprotocol Label Switching (MPLS) Label Distribution Protocol (LDP).
ip rsvp
To configure information about the Resource Reservation Protocol (RSVP) information, use the ip rsvp command. To restore the system to its default condition, use the no form of this command.
ip rsvp
no ip rsvp
Syntax Description
This command has no arguments or keywords.
Defaults
None
Command Modes
Global configuration mode
Supported User Rolesnetwork-admin
vdc-adminCommand History
Usage Guidelines
This command requires the MPLS Services license.
Examples
This example shows how to configure RSVP information:
switch# configure terminal
switch(config)# ip rsvp
switch(config-ip-rsvp)#Related Commands
Command Descriptionmpls ldp configuration
Configures the Multiprotocol Label Switching (MPLS) Label Distribution Protocol (LDP).
ip rsvp authentication challenge
To configure the Resource Reservation Protocol (RSVP) to use a challenge handshake on an interface, use the ip rsvp authentication challenge command. To disable the authentication on an interface, use the no form of this command.
ip rsvp authentication challenge
no ip rsvp authentication challenge
Syntax Description
This command has no arguments or keywords.
Defaults
None
Command Modes
Interface configuration mode
Supported User Rolesnetwork-admin
vdc-adminCommand History
Usage Guidelines
This command requires the MPLS Services license.
Examples
This example shows how to configure RSVP to use a challenge handshake on an interface:
switch# configure terminal
switch(config)# interface ethernet 2/1
switch(config-if)# ip rsvp authentication challenge
switch(config-if)#Related Commands
Command Descriptionmpls ldp configuration
Configures the Multiprotocol Label Switching (MPLS) Label Distribution Protocol (LDP).
ip rsvp authentication key-chain
To activate the Resource Reservation Protocol (RSVP) cryptographic authentication on an interface, use the ip rsvp authentication key-chain command. To disable the authentication on an interface, use the no form of this command.
ip rsvp authentication key-chain key-chain-name
no ip rsvp authentication key-chain key-chain-name
Syntax Description
Syntax Description
This command has no arguments or keywords.
Defaults
None
Command Modes
Interface configuration mode
Supported User Rolesnetwork-admin
vdc-adminCommand History
Usage Guidelines
This command requires the MPLS Services license.
Examples
This example shows how to activate RSVP cryptographic authentication on an interface:
switch# configure terminal
switch(config)# interface ethernet 2/1
switch(config-if)# ip rsvp authentication key-chain key1
switch(config-if)#Related Commands
Command Descriptionmpls ldp configuration
Configures the Multiprotocol Label Switching (MPLS) Label Distribution Protocol (LDP).
ip rsvp authentication lifetime
To control how long the Resource Reservation Protocol (RSVP) maintains security associations on an interface, use the ip rsvp authentication lifetime command. To return to the default settings, use the no form of this command.
ip rsvp authentication lifetime hh:mm:ss
no ip rsvp authentication lifetime hh:mm:ss
Syntax Description
Syntax Description
This command has no arguments or keywords.
Defaults
30 minutes
Command Modes
Interface configuration mode
Supported User Rolesnetwork-admin
vdc-adminCommand History
Usage Guidelines
This command requires the MPLS Services license.
Examples
This example shows how to control how long RSVP maintains security associations on an interface:
switch# configure terminal
switch(config)# interface ethernet 2/1
switch(config-if)# ip rsvp authentication key-chain key1
switch(config-if)#Related Commands
Command Descriptionmpls ldp configuration
Configures the Multiprotocol Label Switching (MPLS) Label Distribution Protocol (LDP).
ip rsvp authentication type
To configure the algorithm used to generate crytpgraphic signature messages on an interface, use the ip rsvp authentication type command. To return to the default settings, use the no form of this command.
ip rsvp authentication type {md5 | sha-1}
no ip rsvp authentication type {md5 | sha-1}
Syntax Description
md5
Specifies the Rivest, Shamir, and Adleman (RSA) Message Digest 5 hash algorithm.
sha-1
Specifies the National Institute of Standards and Technology (NIST) Secure Hash Algorithm 1.
Syntax Description
This command has no arguments or keywords.
Defaults
md5
Command Modes
Interface configuration mode
Supported User Rolesnetwork-admin
vdc-adminCommand History
Usage Guidelines
This command requires the MPLS Services license.
Examples
This example shows how to configure the algorithm used to generate crytographic signatures messages on an interface:
switch# configure terminal
switch(config)# interface ethernet 2/1
switch(config-if)# ip rsvp authentication type md5
switch(config-if)#Related Commands
Command Descriptionmpls ldp configuration
Configures the Multiprotocol Label Switching (MPLS) Label Distribution Protocol (LDP).
ip rsvp authentication window-size
To configure the tolerance for an out-of-sequence message on an interface, use the ip rsvp authentication window-size command. To return to the default settings, use the no form of this command.
ip rsvp authentication window-size value
no ip rsvp authentication window-size value
Syntax Description
Syntax Description
This command has no arguments or keywords.
Defaults
1
Command Modes
Interface configuration mode
Supported User Rolesnetwork-admin
vdc-adminCommand History
Usage Guidelines
This command requires the MPLS Services license.
Examples
This example shows how to specify the tolerance for an out-of-sequence message on an interface:
switch# configure terminal
switch(config)# interface ethernet 2/1
switch(config-if)# ip rsvp authentication window-size 3
switch(config-if)#Related Commands
Command Descriptionmpls ldp configuration
Configures the Multiprotocol Label Switching (MPLS) Label Distribution Protocol (LDP).
ip rsvp signalling dscp
To set a Differentiated Services Code Point (DSCP) for Resource Reservation Protocol (RSVP) signalling messages, use the ip rsvp signalling dscp command. To revert to the default settings, use the no form of this command.
ip rsvp signalling dscp value
no ip rsvp signalling dscp value
Syntax Description
Defaults
48.
Command Modes
Interface configuration mode
Supported User Rolesnetwork-admin
vdc-adminCommand History
Usage Guidelines
This command requires the MPLS Services license.
Examples
This example shows how to set the DSCP for RSVP signalling messages:
switch# configure terminal
switch(config)# interface ethernet 6/1
switch(config-if)# ip rsvp signalling dscp 1
switch(config-if)#Related Commands
Command Descriptionmpls ldp configuration
Configures the Multiprotocol Label Switching (MPLS) Label Distribution Protocol (LDP).
ip rsvp signalling hello dscp
To set the differentiated services code point (DSCP) value that is in the IP header of the hello message, use the ip rsvp signalling hello dscp command. To revert to the default settings, use the no form of this command.
ip rsvp signalling hello dscp value
no ip rsvp signalling hello dscp value
Syntax Description
Defaults
48.
Command Modes
Interface configuration mode
Supported User Rolesnetwork-admin
vdc-adminCommand History
Usage Guidelines
This command requires the MPLS Services license.
Examples
This example shows how to set the DSCP value that is in the IP header of the hello message:
switch# configure terminal
switch(config)# interface ethernet 2/2
switch(config-if)# ip rsvp signalling hello dscp 1
switch(config-if)#Related Commands
Command Descriptionmpls ldp configuration
Configures the Multiprotocol Label Switching (MPLS) Label Distribution Protocol (LDP).
ip rsvp signalling hello reroute
To configure IP Resource reservation Protocol (RSVP) signalling hello reroute commands, use the ip rsvp signalling hello reroute command. To revert to the default settings, use the no form of this command.
ip rsvp signalling hello reroute [override-graceful]
no ip rsvp signalling hello reroute [override-graceful]
Syntax Description
override-graceful
Specifies to ignore the existence of the GR node neighbor for the Hello State Timer (HST) behavior.
Defaults
None
Command Modes
Interface configuration mode
Supported User Rolesnetwork-admin
vdc-adminCommand History
Usage Guidelines
This command requires the MPLS Services license.
Examples
This example shows how to configure IP RSVP signalling hello RSVP reroute commands:
switch# configure terminal
switch(config)# interface ethernet 2/2
switch(config-if)# ip rsvp signalling hello reroute override-graceful
switch(config-if)#Related Commands
Command Descriptionmpls ldp configuration
Configures the Multiprotocol Label Switching (MPLS) Label Distribution Protocol (LDP).
ip rsvp signalling hello reroute state-timeout refresh misses
To configure the number of consecutive missed hello message before a neighbor is declared down or unreachable for Hello State Timer (HST) functionality, use the ip rsvp signalling hello reroute state-timeout refresh misses command. To return to the default behavior, use the no form of this command.
ip rsvp signalling hello reroute state-timeout refresh misses value
no ip rsvp signalling hello reroute state-timeout refresh misses vlaue
Syntax Description
Defaults
4
Command Modes
Interface configuration mode
Supported User Rolesnetwork-admin
vdc-adminCommand History
Usage Guidelines
This command requires the MPLS Services license.
Examples
This example shows how to configure the number of consecutive missed hello message before a neighbor is declared down or unreachable for HST functionality:
switch# configure terminal
switch(config)# interface ethernet 2/2
switch(config-if)# ip rsvp signalling hello reroute state-timeout refresh misses 12
Related Commands
Command Descriptionmpls ldp configuration
Configures the Multiprotocol Label Switching (MPLS) Label Distribution Protocol (LDP).
ip rsvp signalling hello reroute state-timeout refresh interval
To configure the interval in which Resource Reservation Protocol (RSVP) hello mesages are sent to support the HST functionality, use the ip rsvp signalling hello reroute state-timeout refresh interval command. To return to the default settings, use the no form of this command.
ip rsvp signalling hello reroute state-timeout refresh interval time
no ip rsvp signalling hello reroute state-timeout refresh misses time
Syntax Description
Defaults
2 seconds for HST.
200 milli seconds for fast-reroute.
Command Modes
Interface configuration mode
Supported User Rolesnetwork-admin
vdc-adminCommand History
Usage Guidelines
The same form of the command with the fast-reroute keyword may be used to configure the number of missed consecutive hello messages before a neighbor is declared down for fast reroute functionality in a future phase.
This command requires the MPLS Services license.
Examples
This example shows how to configure the interval in which RSVP hello message are sent to support the HST functionality:
switch# configure terminal
switch(config)# interface ethernet 2/2
switch(config-if)# ip rsvp signalling hello reroute state-timeout refresh interval 12
Related Commands
Command Descriptionmpls ldp configuration
Configures the Multiprotocol Label Switching (MPLS) Label Distribution Protocol (LDP).
ip unnumbered loopback
To enable IP processing on an interface without assigning an explicit IP address to the interface, use the ip unnumbered loopback command. To restore the system to its default condition, use the no form of this command.
ip unnumbered loopback number
no ip unnumbered loopback number
Syntax Description
Defaults
None
Command Modes
TE interface configuration mode
Supported User Rolesnetwork-admin
vdc-adminCommand History
Usage Guidelines
This command is not effective until you configure the specified loopback with an IP address.
This command does not require an MPLS Services license.
Examples
This example shows how to configure an interface as an unnumbered loopback:
switch# configure terminal
switch(config)# interface tunnel-te 1
switch(config-if-te)# ip unnumbered loopback 0
switch(config-if-te)#Related Commands
isis metric
To configure the Intermediate System-to-Intermediate System (IS-IS) metric for a tunnel interface to be used as a forwarding adjacency, use the isis metric command.
isis metric metric-value {level-1 | level-2}
Syntax Description
metric-value
Default metric. The range is from 0 to 16777215.
level-1
Specifies the metric to level 1 links.
level-2
Specifies the metric to level 2 links.
Command Modes
TE interface configuration mode
Supported User Rolesnetwork-admin
vdc-adminCommand History
Usage Guidelines
Specify the isis metric command with level-1 or level-2 to be consistent with the IGP level at which you are performing traffic engineering; otherwise, the metric default value is 10.
Use this command only if the IGP is IS-IS. If the IGP is OSPF, use the equivalent OSPF command.
This command requires the MPLS Services license.
Examples
This example shows how to configure the IS-IS metric for a tunnel interface to be used as a forwarding adjacency:
switch# configure terminal
switch(config)# interface tunnel-te 1
switch(config-if-te)# forwarding-adjacency
switch(config-if-te)# isis metric 2 level-1
switch(config-if-te)#Related Commands