300-410 · Question #67
What is the output of the following command: show ip vrf
The correct answer is A. Shows default RD values. The show ip vrf command displays a list of configured Virtual Routing and Forwarding (VRF) instances, including their associated Route Distinguisher (RD) values.
Question
Options
- AShows default RD values
- BDisplays IP routing table information associated with a VRF
- CShows routing protocol information associated with a VRF
- DDisplays the ARP table (static and dynamic entries) in the specified VRF
How the community answered
(43 responses)- A93% (40)
- B5% (2)
- D2% (1)
Why each option
The `show ip vrf` command displays a list of configured Virtual Routing and Forwarding (VRF) instances, including their associated Route Distinguisher (RD) values.
The `show ip vrf` command outputs a table detailing each VRF configured on the device, explicitly listing the VRF name, its associated Route Distinguisher (RD), and potentially interface assignments. The RD is a crucial identifier for VRFs in MPLS VPNs, and this command directly shows these values.
The command `show ip route vrf <vrf-name>` is used to display IP routing table information for a specific VRF, not `show ip vrf` alone.
To show routing protocol information for a VRF, commands like `show ip protocols vrf <vrf-name>` or `show ip bgp vrf <vrf-name>` would be used.
The ARP table for a specific VRF is displayed using the command `show ip arp vrf <vrf-name>`.
Concept tested: Cisco IOS show ip vrf command output
Source: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_vrf/command/ipv-cr-book/ipv-s2.html#wp4136691494
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