There may be occasions when you want to issue several EXEC commands to apply to a single virtual network. In order to reduce the repetitive entering of virtual routing and forwarding (VRF) names for multiple EXEC commands, the routing-context vrf command allows you to set the VRF context of such EXEC commands once, and then proceed with EXEC commands.

The table below contrasts four EXEC commands in Cisco IOS XE software without routing context and in routing context. Note that in the left column, each EXEC command must specify the VRF. In the right column, the VRF context is specified once and the prompt changes to reflect that VRF; there is no need to specify the VRF in each command.

Router# routing-context vrf red
Router%red#

Router# show ip route vrf red

Router%red# show ip route

Router# ping vrf red 10.1.1.1

Router%red# ping 10.1.1.1

Router# telnet 10.1.1.1 /vrf red

Router%red# telnet 10.1.1.1

Router# traceroute vrf red 10.1.1.1

Router%red# traceroute 10.1.1.1

Output of the traceroute command is enhanced to make troubleshooting easier by displaying the incoming VRF name/tag and the outgoing VRF name/tag, as shown in the following example:

Router# traceroute vrf red 10.0.10.12 
Type escape sequence to abort.
Tracing the route to 10.0.10.12
VRF info: (vrf in name/id, vrf out name/id)
  1 10.1.13.15 (red/13,red/13) 0 msec
    10.1.16.16 (red/13,red/13) 0 msec
    10.1.13.15 (red/13,red/13) 1 msec
  2 10.1.8.13 (red/13,red/13) 0 msec
    10.1.7.13 (red/13,red/13) 0 msec
    10.1.8.13 (red/13,red/13) 0 msec
  3 10.1.2.11 (red/13,blue/10) 1 msec 0 msec 0 msec
  4  *  *  *

Using EVN, you can filter debug output per VRF by using the debug condition vrfcommand. The following is sample output from the debug condition vrfcommand:

Router# debug condition vrf red
Condition 1 set
CEF filter table debugging is on
CEF filter table debugging is on
R1#
*Aug 19 23:06:38.178: vrfmgr(0) Debug: Condition 1, vrf red triggered, count 1
R1#

Note	The debug condition vrfcommand does not work in an EIGRP environment.

EVN provides a CISCO-VRF-MIB for VRF discovery and management.

1.    enable

2.    routing-context vrf vrf-name

3.    show ip route [ip-address [mask] [longer-prefixes] | protocol [process-id] | static download]

4.    ping [[protocol [tag] {host-name | system-address}]

5.    telnet host [port]

6.    traceroute [vrf vrf-name | topology topology-name] [protocol] destination

7.    routing-context vrf global

1.    enable

2.    debug vrf {create | delete | error | ha | initialization | interface | ipv4 | ipv6 | issu | lock | lookup | mpls | selection}

1.    enable

2.    configure terminal

3.    ip vrf vrf-name

4.    snmp context context-name [community community-name[rw | ro]

1.    enable

2.    configure terminal

3.    ip vrf vrf-name

4.    snmp context context-name [user username [credential | [encrypted] [auth {md5 password | sha password}] [access {access-list-number | access-list-name | ipv6 access-list-name}]]]