Cisco VPNSC: MPLS Solution Command Reference

Table Of Contents

Cisco VPNSC: MPLS Solution Command Reference

address-family

clear ip route vrf

exit-address-family

import map

ip route vrf

ip vrf

ip vrf forwarding

neighbor activate

rd

route-target

show ip bgp vpnv4

show ip cef vrf

show ip protocols vrf

show ip route vrf

show ip vrf

show tag-switching forwarding vrf

debug ip bgp

Cisco VPNSC: MPLS Solution Command Reference

---

This appendix provides a command reference for the new or modified Cisco IOS commands used to configure MPLS VPNs. All other commands used with MPLS VPNs are documented in the Cisco IOS Release 12.0 Command Reference. The commands listed in this appendix are as follows:

address-family	route-target
clear ip route vrf	show ip bgp vpnv4
exit-address-family	show ip cef vrf
import map	show ip protocols vrf
ip route vrf	show ip route vrf
ip vrf	show ip vrf
ip vrf forwarding	show tag-switching forwarding vrf
neighbor activate	debug ip bgp
rd

In Cisco IOS Release 12.0(1)T or later, you can search and filter the output for show and more commands. This functionality is useful when you need to sort through large amounts of output, or if you want to exclude output that you do not need to see.

To use this functionality, enter a show or more command followed by the pipe character ( | ), one of the keywords begin, include, or exclude, and an expression that you want to search or filter on:

command | {begin | include | exclude} regular-expression

Below is an example of the show atm vc command in which the command output begins with the first line where the expression "PeakRate" appears:

show atm vc | begin PeakRate

For more information on the search and filter functionality, refer to the Cisco IOS Release 12.0(1)T feature module titled CLI String Search.

address-family

To enter the address family submode for configuring routing protocols, such as BGP, RIP, and static routing, use the address-family global configuration command.To disable the address family submode for configuring routing protocols, use the no form of this command.

VPN-IPv4 unicast

address-family vpnv4 [unicast]

no address-family vpnv4 [unicast]

IPv4 unicast

address-family ipv4 [unicast]

no address-family ipv4 [unicast]

IPv4 unicast with CE router

address-family ipv4 [unicast] vrf vrf_name

no address-family ipv4 [unicast] vrf vrf_name

Syntax Description

ipv4	Configures sessions that carry standard IPv4 address prefixes.
vpnv4	Configures sessions that carry customer VPN-IPv4 prefixes, each of which has been made globally unique by adding an 8-byte route distinguisher.
unicast	(Optional) Specifies unicast prefixes.
vrf vrf_name	Specifies the name of a VPN routing/forwarding instance (VRF) to associate with submode commands.

Examples

Routing information for address family IPv4 is advertised by default when you configure a BGP session using the neighbor...remote-as command, unless you execute the no bgp default ipv4-activate command.

Usage Guidelines

Using the address-family command puts you in address family configuration submode. Its prompt is:

(config-router-af)#.

Within this submode, you can configure address-family specific parameters for routing protocols, such as BGP, that can accommodate multiple Layer 3 address families.

To leave address family configuration submode and return to router configuration mode, enter exit-address-family, or simply exit.

Examples

The address-family command in the following example puts the router into address family configuration submode for the VPNv4 address family. Within the submode, you can configure advertisement of NLRI for the VPNv4 address family using neighbor activate and other related commands:

(config)# router bgp 100

(config-router)# address-family vpnv4

(config-router-af)#

The command in the following example puts the router into address family configuration submode for the IPv4 address family. Use this form of the command, which specifies a VRF, only to configure routing exchanges between PE and CE devices. This address-family command causes subsequent commands entered in the submode to be executed in the context of VRF vrf2. Within the submode, you can use neighbor activate and other related commands to accomplish the following:

•Configure advertisement of IPv4 NLRI between the PE and CE routers.

•Configure translation of the IPv4 NLRI (that is, translate IPv4 into VPNv4 for NLRI received from the CE, and translate VPNv4 into IPv4 for NLRI to be sent from the PE to the CE).

•Enter the routing parameters that apply to this VRF.

Enter the address family submode as follows:

(config)# router bgp 100

(config-router)# address-family ipv4 unicast vrf v2:blue

(config-router-af)#

Related Commands

Command	Description
exit-address-family	Exits address family submode.
neighbor activate	Exchanges an address with a neighboring router.

clear ip route vrf

To remove routes from the VRF routing table, use the clear ip route vrf EXEC command.

clear ip route vrf vrf_name {* | network [mask]}

Syntax Description

vrf_name	Name of the VPN routing/forwarding instance (VRF) for the static route.
*	Deletes all routes for a given VRF
network	Destination to be removed, in dotted-decimal format.
mask	(Optional) Mask for the specified network destination, in dotted-decimal format.

Usage Guidelines

Use this command to clear routes from the routing table. Use the asterisk ( * ) to delete all routes from the forwarding table for a specified VRF, or enter the address and mask of a particular network to delete the route to that network.

Examples

The following command removes the route to the network 10.13.0.0 in the v1 routing table:

Router#clear ip route vrf v1:red 10.13.0.0

Related Commands

Command	Description
show ip route vrf	Displays the IP routing table associated with a VRF

exit-address-family

To exit from the address family submode, use the exit-address-family address family submode command.

exit-address-family

Usage Guidelines

This command has no arguments or keywords. It has no default behavior or values.

You can abbreviate this command to exit.

Examples

The following example shows how to exit the address-family command mode:

(config-router-af)#exit-address-family

Related Commands

Command	Description
address-family	Enters the address family submode used to configure routing protocols.

import map

To configure an import route map for a VRF, use the import VRF submode command.

import map route-map

Syntax Description

route-map

Specifies the route map to be used as an import route map for the VRF.

Defaults

There is no default. A VRF has no import route map unless one is configured using the import map command.

Usage Guidelines

Use an import route map when an application requires finer control over the routes imported into a VRF than provided by the import and export extended communities configured for the importing and exporting VRF.

The import-map command associates a route map with the specified VRF. You can filter routes that are eligible for import into a VRF, based on the route target extended community attributes of the route, through the use of a route map.

The route map might deny access to selected routes from a community that is on the import list.

Examples

The following example shows how to configure an import route map for a VRF:

(config)#ip vrf v1:blue

(config-vrf)#import map blue_import_map

Related Commands

Command	Description
ip vrf	Enters VRF configuration mode.
route-target	Configures import and export extended community attributes for the VRF.
show ip vrf	Displays information about a VRF or all VRFs.

ip route vrf

To establish static routes for a VRF, use the ip route vrf global configuration command. To disable static routes, use the no form of this command.

ip route vrf vrf_name prefix mask [next-hop-address] [interface {interface-number}]

[global] [distance] [permanent] [tag tag]

no ip route vrf vrf_name prefix mask [next-hop-address] [interface {interface-number}]

[global] [distance] [permanent] [tag tag]

Syntax Description

vrf_name	Name of the VPN routing/forwarding instance (VRF) for the static route.
prefix	IP route prefix for the destination, in dotted-decimal format.
mask	Prefix mask for the destination, in dotted-decimal format.
next-hop-address	(Optional) IP address of the next hop (the forwarding router that can be used to reach that network).
interface	(Optional) Type of network interface to use: ATM, Ethernet, loopback, POS (packet over SONET), or null.
interface-number	Number identifying the network interface to use.
global	Specifies that the given next hop address is in the non-VRF routing table.
distance	(Optional) An administrative distance for this route.
permanent	(Optional) Specifies that this route will not be removed, even if the interface shuts down.
tag tag	(Optional) Label value that can be used for controlling redistribution of routes through route maps.

Usage Guidelines

Use a static route when the Cisco IOS software cannot dynamically build a route to the destination.

If you specify an administrative distance when you set up a route, you are flagging a static route that can be overridden by dynamic information. For example, IGRP-derived routes have a default administrative distance of 100. To set a static route to be overridden by an IGRP dynamic route, specify an administrative distance greater than 100. Static routes each have a default administrative distance of 1.

Static routes that point to an interface are advertised through RIP, IGRP, and other dynamic routing protocols, regardless of whether the routes are redistributed into those routing protocols. That is, static routes configured by specifying an interface lose their static nature when installed into the routing table.

However, if you define a static route to an interface not defined in a network command, no dynamic routing protocols advertise the route unless a redistribute static command is specified for these protocols.

Examples

The following command reroutes packets addressed to network 209.165.201.0 in VRF v3:blue to the router at IP address 209.165.200.250:

(config)#ip route vrf v3:b

Related Commands

Command	Description
show ip route vrf	Displays the IP routing table associated with a VRF.

ip vrf

To configure a VRF routing table, use the ip vrf global configuration command. To remove a VRF routing table, use the no form of this command.

ip vrf vrf_name

no ip vrf vrf_name

Syntax Description

vrf_name

Name assigned to a VRF.

Usage Guidelines

By default, no VRFs are defined. No import or export lists are associated with a VRF. No route maps are associated with a VRF.

The ip vrf vrf_name command creates a VRF routing table and a CEF (forwarding) table, both named vrf_name.

The default route distinguisher value route-distinguisher is also associated with these tables.

Examples

The following example imports a route map to a VRF:

(Router-config)#ip vrf v2:green

(config-vrf)#rd 100:2

route-target both 100:2

route-target import 100:1

Related Commands

Command	Description
ip vrf forwarding	Associates a VRF with an interface or a subinterface.

ip vrf forwarding

To associate a VRF with an interface or subinterface, use the ip vrf forwarding interface configuration command. To disassociate a VRF, use the no form of this command.

Executing this command on an interface removes the IP address. The IP address should be reconfigured.

ip vrf forwarding vrf_name

no ip vrf forwarding vrf_name

Syntax Description

vrf_name

Name assigned to a VRF.

Defaults

The default for an interface is the global routing table.

Examples

The following example shows how to link a VRF to ATM interface 0/0:

(config)#interface atm0/0

(config-if)#ip vrf forward

Related Commands

Command	Description
ip vrf	Defines a VRF.
ip route vrf	Establishes static routes for a VRF.

neighbor activate

To enable the exchange of information with a BGP neighboring router, use the neighbor activate router configuration command. To disable the exchange of an address with a neighboring router, use the no form of this command.

neighbor {ip-address | peer-group-name} activate

no neighbor {ip-address | peer-group-name} activate

Syntax Description

ip-address	IP address of the neighboring router.
peer-group-name	Name of BGP peer group.

Defaults

The exchange of IP addresses with neighbors is enabled by default for the VPN IPv4 address family. You can disable IPv4 address exchange using the general command no default bgp ipv4 activate, or you can disable it for a particular neighbor using the no form of this command.

For all other address families, address exchange is disabled by default. You can explicitly activate the default command using the appropriate address family submode.

Examples

In the following example, a BGP router activates the exchange of a customer's IP address 10.15.0.15 to a neighboring router.

router bgp 100

neighbor 10.15.0.15 remote-as 100

neighbor 10.15.0.15 update-source loopback0

address-family vpnv4 unicast

neighbor 10.15.0.15 activate

exit-address-family

Related Commands

Command	Description
address-family	Enters the address family submode.
exit-address-family	Exits the address family submode.

rd

For a VRF to be functional, a route-distinguisher must be configured. To create routing and forwarding tables for a VRF, use the rd VRF submode command.

rd route-distinguisher

Syntax Description

route-distinguisher

Adds an 8-byte value to an IPv4 prefix to create a VPN IPv4 prefix.

Defaults

There is no default.

Usage Guidelines

A route distinguisher (RD) creates routing and forwarding tables and specifies the default route-distinguisher for a VPN. The RD is added to the beginning of the customer's IPv4 prefixes to change them into globally unique VPN-IPv4 prefixes.

An RD is either ASN-relative, in which case it is composed of an autonomous system number and an arbitrary number, or it is IP-address-relative, in which case it is composed of an IP address and an arbitrary number.

You can enter an RD in either of these formats:

•16-bit AS number: your 32-bit number

For example, 101:3

•32-bit IP address: your 16-bit number

For example, 192.168.122.15:1

Examples

The following example configures a default RD for two VRFs. It illustrates the use of both AS-relative and IP address-relative RDs:

(config)#ip vrf v1:blue

(config-vrf)#rd 100:3

(config-vrf)#exit

(config)#ip vrf v2:red

(config-vrf)#rd 173.13.0.12:200

Related Commands

Command	Description
ip vrf	Enters VRF configuration mode.
show ip vrf	Displays information about a VRF.

route-target

To create a route-target extended community for a VRF, use the route-target VRF submode command. To disable the configuration of a route-target community option, use the no form of this command.

route-target {import | export | both} route-target-ext-community

no route-target {import | export | both} route-target-ext-community

Syntax Description

import	Imports routing information from the target VPN extended community.
export	Exports routing information to the target VPN extended community.
both	Imports both import and export routing information to the target VPN extended community.
route-target-ext- community	Adds the route-target extended community attributes to the VRF's list of import, export, or both (import and export) route-target extended communities.

Defaults

There are no defaults. A VRF has no route-target extended community attributes associated with it until specified by the route-target command.

Usage Guidelines

The route-target command creates lists of import and export route target extended communities for the specified VRF.

Execute the command one time for each target community. Learned routes that carry a specific route target extended community are imported into all VRFs configured with that extended community as an import route target. Routes learned from a VRF site (for example, by BGP, RIP, or static route configuration) contain export route targets for extended communities configured for the VRF added as route attributes to control the VRFs into which the route is imported.

The route-target specifies a target VPN extended community. Like a route-distinguisher, an extended community is composed of either an autonomous system number and an arbitrary number, or an IP address and an arbitrary number.

You can enter the numbers in either of these formats:

•16-bit AS number: your 32-bit number

For example, 101:3

•32-bit IP address: your 16-bit number

For example, 192.168.122.15:1

Examples

The following example shows how to configure route-target extended community attributes for a VRF. The result of the command sequence is that VRF v1:blue has two export extended communities (1000:1 and 1000:2) and two import extended communities (1000:1 and 173.27.0.130:200).

(config)#ip vrf v1:blue

(config-vrf)#route-target both 1000:1

(config-vrf)#route-target export 1000:2

(config-vrf)#route-target import 173.27.0.130:200

Related Commands

Command	Description
ip vrf	Enters VRF configuration mode.
import	Configures an import route map for the VRF.

show ip bgp vpnv4

To display VPN address information from the BGP table, use the show ip bgp vpnv4 EXEC command.

show ip bgp vpnv4 {all | rd route-distinguisher | vrf vrf_name}

[ip-prefix/length [longer-prefixes] [output-modifiers]]

[network-address [mask] [longer-prefixes] [output-modifiers]] [cidr-only] [community]

[community-list] [dampened-paths] [filter-list] [flap-statistics] [inconsistent-as]

[neighbors] [paths [line]] [peer-group] [quote-regexp] [regexp] [summary] [tags]

Syntax Description

all	Displays the complete VPNv4 database.
rd route-distinguisher	Displays NLRIs that have a matching route distinguisher.
vrf vrf_name	Displays NLRIs associated with the named VRF.
ip-prefix/length	(Optional) IP prefix address (in dotted decimal format) and length of mask (0 to 32).
longer-prefixes	(Optional) Displays the entry, if any, that exactly matches the specified prefix parameter, as well as all entries that match the prefix in a "longest-match" sense. That is, prefixes for which the specified prefix is an initial sub-string.
output-modifiers	(Optional) For a list of associated keywords and arguments, use context-sensitive help.
network-address	(Optional) IP address of a network in the BGP routing table.
mask	(Optional) Mask of the network address, in dotted decimal format.
cidr-only	(Optional) Displays only routes that have nonnatural net masks.
community	(Optional) Displays routes matching this community.
community-list	(Optional) Displays routes matching this community list.
dampened-paths	(Optional) Displays paths suppressed due to dampening (BGP route from peer is up and down).
filter-list	(Optional) Displays routes conforming to the filter list.
flap-statistics	(Optional) Displays flap statistics of routes.
inconsistent-as	(Optional) Displays only routes that have inconsistent autonomous systems of origin.
neighbors	(Optional) Displays details about TCP and BGP neighbor connections.
paths	(Optional) Displays path information.
line	(Optional) A regular expression to match the BGP AS paths.
peer-group	(Optional) Displays information about peer groups.
quote-regexp	(Optional) Displays routes matching the AS path "regular expression."
regexp	(Optional) Displays routes matching the AS path "regular expression."
summary	(Optional) Displays BGP neighbor status.
tags	(Optional) Displays incoming and outgoing BGP labels for each NLRI.

Usage Guidelines

Use this command to display VPNv4 information from the BGP database. The command show ip bgp vpnv4 all displays all available VPNv4 information. The command show ip bgp vpnv4 summary displays BGP neighbor status.

Examples

The following example shows output for all available VPNv4 information in a BGP routing table:

Router#show ip bgp vpnv4 all

BGP table version is 18, local router ID is 14.14.14.14

Status codes: s suppressed, d damped, h history, * valid, > best, i - internal

Origin codes: i - IGP, e - EGP,? - incomplete

Network	Next Hop	Metric	LocPrf	Weight  Path

Route Distinguisher: 100:1 (v1:blue)

*> 11.0.0.0	50.0.0.1	0 	0	101 i

*>i12.0.0.0	13.13.13.13 		0	100 	0	102 i

*> 50.0.0.0	50.0.0.1	0	0	101 i

*>i51.0.0.0	13.13.13.13	0	100 	0	102 i

Table C-1 Show IP BGP VPNv4 Field Descriptions

Field	Description
Network	Displays the network address from the BGP table.
Next Hop	Displays the address of the BGP next hop.
Metric	Displays the BGP metric.
LocPrf	Displays the local preference.
Weight	Displays the BGP weight.
Path	Displays the BGP path per route.

The following example shows how to display a table of labels for NLRIs that have a route-distinguisher value of 100:1.

Router#show ip bgp vpnv4 rd 100:1 tags

Network Next Hop In tag/Out tag

Route Distinguisher: 100:1 (vrf1)

2.0.0.0 10.20.0.60 34/notag

10.0.0.0 10.20.0.60 35/notag

12.0.0.0 10.20.0.60 26/notag

10.20.0.60 26/notag

13.0.0.0 10.15.0.15 notag/26

Table C-2 Show IP BGP VPNv4 rd Tags Field Descriptions

Field	Description
Network	Displays the network address from the BGP table.
Network	Displays the network address from the BGP table.
Next Hop	Specifies the BGP next hop address.
In Tag	Displays the label (if any) assigned by this router.
Out Tag	Displays the label assigned by the BGP next hop router.

The following example shows VPNv4 routing entries for the VRF called v1:red.

Router#show ip bgp vpnv4 vrf v1:red

BGP table version is 18, local router ID is 14.14.14.14

Status codes: s suppressed, d damped, h history, * valid, > best, i - internal

Origin codes: i - IGP, e - EGP,? - incomplete

Network Next Hop Metric LocPrf Weight Path

Route Distinguisher: 100:1 (vrf1)

*> 11.0.0.0 50.0.0.1 0 0 101 i

*>i12.0.0.0 13.13.13.13 0 100 0 102 i

*> 50.0.0.0 50.0.0.1 0 0 101 i

*>i51.0.0.0 13.13.13.13 0 100 0 102 i

Related Command

Related Commands

Command	Description
show ip vrf	Displays the VRFs and their associated interfaces.

show ip cef vrf

To display the CEF forwarding table associated with a VRF, use the show ip cef vrf EXEC command.

show ip cef vrf vrf_name [ip-prefix [mask [longer-prefixes]] [detail] [output-modifiers]]

[interface interface-number] [adjacency [interface interface-number] [detail] [discard]

[drop] [glean] [null] [punt] [output-modifiers]] [detail [output-modifiers]]

[non-recursive [detail] [output-modifiers]] [summary [output-modifiers]]

[traffic [prefix-length] [output-modifiers]] [unresolved [detail] [output-modifiers]]

Syntax Description

vrf_name	Name assigned to the VRF.
ip-prefix	(Optional) IP prefix of entries to show, in dotted-decimal format (A.B.C.D).
mask	(Optional) Mask of the IP prefix, in dotted-decimal format.
longer-prefixes	(Optional) Displays table entries for all of the more specific routes.
detail	(Optional) Displays detailed information for each CEF table entry.
output-modifiers	(Optional) For a list of associated keywords and arguments, use context-sensitive help.
interface	(Optional) Type of network interface to use: ATM, Ethernet, Loopback, POS (packet over SONET) or Null.
interface-number	Number identifying the network interface to use.
adjacency	(Optional) Displays all prefixes resolving through adjacency.
discard	Discards adjacency.
drop	Drops adjacency.
glean	Gleans adjacency.
null	Null adjacency.
punt	Punts adjacency.
non-recursive	(Optional) Displays only nonrecursive routes.
summary	(Optional) Displays a CEF table summary.
traffic	(Optional) Displays traffic statistics.
prefix-length	(Optional) Displays traffic statistics by prefix size.
unresolved	(Optional) Displays only unresolved routes.

Usage Guidelines

Used with only the vrf_name argument, the show ip cef vrf command shows a shortened display of the CEF table. Used with the detail argument, the show ip cef vrf command shows detailed information for all CEF table entries.

Examples

This example shows the forwarding table associated with the VRF called v3:green.

Router#show ip cef vrf v3:green

Prefix Next Hop Interface

0.0.0.0/32 receive

11.0.0.0/8 50.0.0.1 Ethernet1/3

12.0.0.0/8 52.0.0.2 POS6/0

50.0.0.0/8 attached Ethernet1/3

50.0.0.0/32 receive

50.0.0.1/32 50.0.0.1 Ethernet1/3

50.0.0.2/32 receive

50.255.255.255/32 receive

51.0.0.0/8 52.0.0.2 POS6/0

224.0.0.0/24 receive

255.255.255.255/32 receive

Table C-3 Show IP CEF VRF Field Descriptions

Field	Description
Prefix	Specifies the network prefix.
Next Hop	Specifies the BGP next hop address.
Interface	Specifies the VRF interface.

Related Commands

Command	Description
show ip vrf	Displays the VRFs and their associated interfaces.
show ip route vrf	Displays the IP routing table associated with a VRF.

show ip protocols vrf

To display the routing protocol information associated with a VRF, use the show ip protocols vrf EXEC command.

show ip protocols vrf vrf_name

Syntax Description

vrf_name

Name assigned to a VRF.

Examples

The following example shows information about a VRF called v2:red.

Router#show ip protocols vrf v2:red

Routing Protocol is "bgp 100"

	Sending updates every 60 seconds, next due in 0 sec

	Outgoing update filter list for all interfaces is 

	Incoming update filter list for all interfaces is 

	IGP synchronization is disabled

	Automatic route summarization is disabled

	Redistributing: connected, static

	Routing for Networks:

	Routing Information Sources:

	Gateway	Distance	Last Update

	13.13.13.13	200	03:26:15

	18.18.18.18	200	03:26:54

Distance: external 20 internal 200 local 200

Table C-4 Show IP Protocols vrf Field Descriptions

Field	Description
Gateway	Displays the IP address of the router identifier for all routers in the network
Distance	Displays the metric used to access the destination route.
Last update	Displays the last time the routing table was updated from the source.

Related Commands

Command	Description
show ip vrf	Displays the VRFs and their associated interfaces.

show ip route vrf

To display the IP routing table associated with a VRF (VPN routing/forwarding instance), use the show ip route vrf EXEC command.

show ip route vrf vrf_name [connected] [protocol [as-number] [tag] [output-modifiers]]

[list number [output-modifiers]] [profile] [static [output-modifiers]]

[summary [output-modifiers]] [supernets-only [output-modifiers]]

[traffic-engineering [output-modifiers]]

Syntax Description

vrf_name	Name assigned to the VPN routing/forwarding instance (VRF).
connected	Displays all the connected routes in a VRF.
protocol	To specify a routing protocol, use one of the following keywords: bgp, egp, eigrp, hello, igrp, isis, ospf, or rip.
as-number	Autonomous system number.
tag	IOS routing area label.
output-modifiers	(Optional) For a list of associated keywords and arguments, use context-sensitive help.
list number	Specifies the IP access list to display.
profile	Displays the IP routing table profile.
static	Displays static routes.
summary	Displays a summary of routes.
supernets-only	Displays supernet entries only.
traffic-engineering	Displays only traffic-engineered routes.

Examples

This example shows the IP routing table associated with the VRF called v1:red.

Router#show ip route vrf v1:red

Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP

       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area 

       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2

       E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP

	U - per-user static route, o - ODR

       T - traffic engineered route

Gateway of last resort is not set

B    51.0.0.0/8 [200/0] via 13.13.13.13, 00:24:19

C    50.0.0.0/8 is directly connected, Ethernet1/3

B    11.0.0.0/8 [20/0] via 50.0.0.1, 02:10:22

B    12.0.0.0/8 [200/0] via 13.13.13.13, 00:24:20

This example shows BGP entries in the IP routing table associated with the VRF called v1:red.

Router#show ip route vrf v1:red bgp

B  51.0.0.0/8 [200/0] via 13.13.13.13, 03:44:14

B  11.0.0.0/8 [20/0] via 51.0.0.1, 03:44:12

B  12.0.0.0/8 [200/0] via 13.13.13.13, 03:43:14

Related Commands

Command	Description
show ip vrf	Displays VRFs and their associated interfaces.
show ip cef vrf	Displays the CEF forwarding table associated with a VRF.

show ip vrf

To display the set of defined VRFs (VPN routing/forwarding instances) and associated interfaces, use the show ip vrf EXEC command.

show ip vrf [{brief | detail | interfaces}] [vrf_name] [output-modifiers]

Syntax Description

brief	.(Optional) Displays concise information on the VRF(s) and associated interfaces.
detail	(Optional) Displays detailed information on the VRF(s) and associated interfaces.
interfaces	(Optional) Displays detailed information about all interfaces bound to a particular VRF, or any VRF.
vrf_name	Name assigned to the VPN routing/forwarding instance (VRF)
output-modifiers	(Optional) For a list of associated keywords and arguments, use context-sensitive help.

Usage Guidelines

Use this command to display information about VRFs. Two levels of detail are available: use the brief keyword or no keyword to display concise information, or use the detail keyword to display all information. To display information about all interfaces bound to a particular VRF, or to any VRF, use the interfaces keyword.

When no optional parameters are specified, the command shows concise information about all configured VRFs.

Examples

This example shows brief information for the VRFs currently configured:

Router#show ip vrf

	Name	Default RD	Interfaces

	vrf1:red	100:1 	Ethernet1/3

	vrf2:blue 	100:2 	Ethernet0/3

Table C-5 Show IP vrf Field Descriptions

Field	Description
Name	Specifies the VRF name.
Default RD	Specifies the default route distinguisher.
Interfaces	Specifies the network interfaces.

This example shows detailed information for the VRF called v1:blue.

Router#show ip vrf detail v1:blue

VRF vrf1:blue; default RD 100:1

 Interfaces:

  Ethernet1/3

Export VPN route-target communities

  RT:100:1

 Import VPN route-target communities

  RT:100:1

 No import route-map

Table C-6 Show IP vrf Detail Field Descriptions

Field	Description
Interfaces	Specifies the network interfaces.
Export	Specifies VPN route-target export communities.
Import	.Specifies VPN route-target import communities.

This example shows the interfaces bound to a particular VRF:

router#show ip vrf interfaces

Interface	IP-Address	VRF	Protocol

Ethernet2	130.22.0.33	vrf3:blue	up

Ethernet4 	130.77.0.33	hub	up

router#

Table C-7 Show IP VRF Interfaces Field Descriptions

Field	Description
Interface	Specifies the network interfaces for a VRF.
IP-Address	Specifies the IP address of a VRF interface.
VRF	Specifies the VRF name.
Protocol	Displays the state of the protocol (up/down) for each VRF interface.

Related Commands

Command	Description
ip vrf	Enters VRF configuration mode.
rd	Configures a default route distinguisher (RD) for a VRF.
route-target	Configures import and export extended community attributes for the VRF.
import	Configures an import route map for a VRF.
ip vrf forwarding	Associates a VRF with an interface or subinterface.

show tag-switching forwarding vrf

To display label forwarding entries associated with a particular VRF or IP prefix, use the show tag-switching forwarding vrf EXEC command. To disable the display of label forwarding information, use the no form of this command.

show tag-switching forwarding vrf vrf_name [ip-prefix/length [mask]] [detail] [output-modifiers]

no show tag-switching forwarding vrf vrf_name [ip-prefix/length [mask]] [detail] [output-modifiers]

Syntax Description

vrf_name	Displays NLRIs associated with the named VRF.
ip-prefix/length	(Optional) IP prefix address (in dotted-decimal format) and length of mask (0 to 32).
mask	(Optional) Destination network mask, in dotted-decimal format.
detail	(Optional) Displays detailed information on the VRF routes.
output-modifiers	(Optional) For a list of associated keywords and arguments, use context-sensitive help.

Examples

The following example shows label forwarding entries that correspond to the VRF called v2:green.

Router#show tag-switching forwarding vrf v2:green detail

Related Commands

Command	Description
show tag-switching forwarding	Displays label forwarding information.
show ip cef vrf	Displays the CEF forwarding table associated with a VRF.

debug ip bgp

To display information related to processing BGPs, use the debug ip bgp EXEC command. To disable the display of BGP information, use the no form of this command.

debug ip bgp [A.B.C.D. | dampening | events | in | keepalives | out | updates | vpnv4]

no debug ip bgp [A.B.C.D. | dampening | events | in | keepalives | out | updates | vpnv4]

Syntax Description

A.B.C.D.	(Optional) Displays the BGP neighbor IP address.
dampening	(Optional) Displays BGP dampening.
events	(Optional) Displays BGP events.
in	(Optional) BGP inbound information.
keepalives	(Optional) Displays BGP keepalives.
out	(Optional) Displays BGP outbound information.
updates	(Optional) Displays BGP updates.
vpnv4	(Optional) Displays VPNv4 NLRI information.

Examples

The following example displays the output from this command:

Router#debug ip bgp vpnv4

03:47:14:vpn:bgp_vpnv4_bnetinit:100:2:58.0.0.0/8

03:47:14:vpn:bnettable add:100:2:58.0.0.0 / 8

03:47:14:vpn:bestpath_hook route_tag_change for v2:58.0.0.0/255.0.0.0(ok)

03:47:14:vpn:bgp_vpnv4_bnetinit:100:2:57.0.0.0/8