1-7 - Verify the Service Provider Backbone Operation for MPLS VPN - Command Reference

Question 1

IOS-XR Command:
ping [dest_IP] source [interface]

Answer 1

Verifies connectivity between the source IP and destination IP.

Question 2

IOS-XR Command:
ping mpls ipv4 [dest-address/mask] source [source-address]

Answer 2

Check MPLS host reachability and network connectivity by specifying the destination type as an LDP IPv4 address

Question 3

IOS-XR Command:
show bgp neighbors

Answer 3

Display information about BGP and TCP connections to neighbors.

Question 4

IOS-XR Command:
show bgp summary

Answer 4

Display the status of all BGP connections.

Question 5

IOS-XR Command:
show ospf interface brief

Answer 5

Displays OSPF-related interface information.

Question 6

IOS-XR Command:
show ospf neighbor

Answer 6

Displays OSPF-neighbor information on a per-interface basis.

Question 7

IOS-XR Command:
show route [protocol] [process-id]

Answer 7

Displays the current state of the routing table.

Question 8

IOS-XR Command:
show mpls forwarding

Answer 8

To display the contents of the MPLS LFIB, use this command in EXEC mode.

Question 9

IOS-XR Command:
show mpls interfaces

Answer 9

To display information about one or more interfaces that are configured for MPLS, use this command in EXEC mode.

Question 10

IOS-XR Command:
show mpls ldp bindings

Answer 10

To display the contents of the LIB, use this command in EXEC command

Question 11

IOS-XR Command:
show mpls ldp discovery

Answer 11

This command shows both link discovery and targeted discovery. When you specify no interface filter, this command generates a list of interfaces that run the LDP discovery process. This command also displays neighbor discovery information for the default routing domain.

Question 12

IOS-XR Command:
show mpls ldp neighbor

Answer 12

To display the status of LDP sessions, use this command in EXEC mode.

Question 13

IOS-XR Command:
show running-config router [protocol]

Answer 13

Displays the running configuration for a specific routing protocol.

Question 14

IOS-XE Command:
ping [dest_address] source [interface]

Answer 14

Verifies connectivity between the source IP and destination IP.

Question 15

IOS-XE Command:
ping vrf [vrf-name] [dest_address]

Answer 15

Verifies connectivity between the VRFs and destination IP.

Question 16

IOS-XE Command:
show ip bgp neighbors

Answer 16

Displays information about BGP and TCP connections to neighbors.

Question 17

IOS-XE Command:
show ip bgp summary

Answer 17

Displays the status of all BGP connections.

Question 18

IOS-XE Command:
show ip ospf interface brief

Answer 18

Displays OSPF-related interface information.

Question 19

IOS-XE Command:
show ip ospf neighbor

Answer 19

Displays OSPF neighbor information on a per-interface basis.

Question 20

IOS-XE Command:
show ip route [protocol] [process-id]

Answer 20

Displays the current state of the routing table.

Question 21

IOS-XE Command:
show mpls forwarding

Answer 21

To display the contents of the MPLS LFIB, use this command in EXEC mode.

Question 22

IOS-XE Command:
show mpls interfaces

Answer 22

To display information about one or more interfaces that are configured for MPLS, use this command in EXEC mode.

Question 23

IOS-XE Command:
show mpls ldp bindings

Answer 23

To display the contents of the LIB, use this command in EXEC command.

Question 24

IOS-XE Command:
show mpls ldp discovery

Answer 24

This command shows both link discovery and targeted discovery. When you specify no interface filter, this command generates a list of interfaces that run the LDP discovery process. This command also displays neighbor discovery information for the default routing domain.

Question 25

IOS-XE Command:
show mpls ldp neighbor

Answer 25

To display the status of LDP sessions, use this command in EXEC mode.

Question 26

IOS-XE Command:
show running-config | section [protocol]

Answer 26

Filters the output of a show running-config to match a given section for a routing protocol.

Question 27

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

Answer 27

Displays information about the configured VRFs.