10-2 - Troubleshoot PE-to-PE Connectivity

Question 1

T/F: 6VPE requires support for IPv6 unicast inside each VPN routing and forwarding instance (VRF). Make sure that you are using a separate VRF for each IPv6-enabled end customer.

Answer 1

True

Question 2

IOS-XR Command:
show vrf [vrf-name] detail

Answer 2

Show the VRF details, including RTs, RD, interfaces, and more.

Question 3

IOS-XE Command:
show vrf detail [vrf-name]

Answer 3

Show the VRF details, including RTs, RD, interfaces, and more.

Question 4

IOS-XR Command:
show running-config router bgp 65000

Answer 4

Show the running config of the BGP process

Question 5

IOS-XE Command:
show running-config | section router bgp 65000

Answer 5

Show the running config of the BGP process

Question 6

IOS-XR Command:
show bgp vpnv6 unicast summary

Answer 6

display a summary of BGP neighbors, including status, received number of routes, and more.

Question 7

IOS-XE Command:
show bgp all summary

Answer 7

display a summary of BGP neighbors, including status, received number of routes, and more.

Question 8

IOS-XE Command:
show bgp vpnv6 unicast vrf [vrf-name]

Answer 8

display the BGP topology table for each VRF of interest that you must troubleshoot

Question 9

IOS-XR Command:
show bgp vpnv6 unicast vrf vrf-name

Answer 9

display the BGP topology table for each VRF of interest that you must troubleshoot

Question 10

IOS-XE Command:
show bgp vpnv6 unicast vrf [vrf-name] [ipv6-prefix/mask]

Answer 10

With this command, you can look for detailed information in the BGP table for address-family VPNv6 for a specific VRF and discover the local label that this PE router has assigned and advertised to remote PEs

Question 11

IOS-XR Command:
show bgp vpnv6 unicast vrf [vrf-name] [ipv6-prefix/mask]

Answer 11

With this command, you can look for detailed information in the BGP table for address-family VPNv6 for a specific VRF and discover the local label that this PE router has assigned and advertised to remote PEs

Question 12

What is true about issues with IPv6 VPN over MPLS (6VPE)?

A. 6VPE is not supported in an MPLS IPv4-signaled core.
B. Routing with PE and P devices is typically performed by the IPv6 protocol.
C. The ingress PE uses MPLS to tunnel IPv6 packets to the egress PE.
D. The P devices in the core are aware of the VPN routes.

Answer 12

C