8-2 - Troubleshoot Common Issues for Traditional E-Line, E-LAN, and E-Tree Ethernet Solutions

Question 1

IOS-XR Command:
show l2vpn xconnect

Answer 1

You can monitor AToM service from a high-level perspective with this command.

Question 2

IOS-XE Command:
show l2vpn atom vc

Answer 2

You can monitor AToM service from a high-level perspective with this command.

Question 3

IOS-XR Command:
show l2vpn xconnect interface [GigabitEthernet 0/0/0/0.11] detail

Answer 3

This command provides information about the AToM type, interworking method, processed VLAN, traffic statistics, PW class (which is not set in this example), encapsulation (MPLS in this example), signaling protocol (Label Distribution Protocol [LDP] in this example), and the parameters that are used locally and remotely.

Question 4

IOS-XE Command:
show l2vpn atom vc vcid11 detail

Answer 4

This command provides information about the AToM type, interworking method, processed VLAN, traffic statistics, PW class (which is not set in this example), encapsulation (MPLS in this example), signaling protocol (Label Distribution Protocol [LDP] in this example), and the parameters that are used locally and remotely.

Question 5

IOS-XR Command:
show ethernet tags [GigabitEthernet 0/0/0/0.12] detail

Answer 5

• This command lets you view the tag-matching information when you display the interface information
• The detailed output displays the outer- and inner-tag matching, the encapsulation protocol, and the tag manipulation.

Question 6

IOS-XE Command:
show ethernet service instance id [21] interface [Gigabit 0/0/0] detail

Answer 6

• This command lets you view the tag-matching information when you display the interface information
• The detailed output displays the outer- and inner-tag matching, the encapsulation protocol, and the tag manipulation.

Question 7

IOS-XR Command:
show l2vpn bridge-domain brief

Answer 7

The brief output provides a summary of the bridge domains and their state.

Question 8

IOS-XR Command:
show l2vpn bridge-domain bd-name [bd112]

Answer 8

You can narrow the regular output to a specific bridge domain and display information about the access controllers (ACs), Virtual Forwarding Instances (VFIs), and PWs.

Question 9

IOS-XR Command:
show l2vpn bridge-domain bd-name [bd112] detail

Answer 9

Provides detailed information about the bridge-domain.

Question 10

IOS-XE Command:
show bridge-domain [detail]

Answer 10

The output includes information about the statistics, attachment circuits, VFI, and MAC addresses that are learned in the bridge domain.

Question 11

IOS-XE Commands:
show l2vpn vfi
show l2vpn service vfi name [vfi121]

Answer 11

Each command allows you to identify a specific VFI to examine. The VFI-related information that both commands provide is similar and reports the state of all PWs that build the VFI.

Question 12

IOS-XR Command:
show ethernet tags GigabitEthernet 0/0/0/0.112 detail

Answer 12

• You can monitor the tag matching and manipulation at the attachment circuits.
• The detailed output displays the outer- and inner-tag matching, the encapsulation protocol, and the tag manipulation.

Question 13

IOS-XE Command:
show ethernet service instance id 121 interface Gigabit 0/0/0 detail

Answer 13

• You can monitor the tag matching and manipulation at the attachment circuits.
• The detailed output displays the outer- and inner-tag matching, the encapsulation protocol, and the tag manipulation.

Question 14

What is true about traditional E-Line, E-LAN, and E-Tree?

A. E-LAN is referred to as a point-to-multipoint solution.
B. E-Line is also called VPLS.
C. AToM uses EoMPLS as a transport.
D. E-Tree is also referred to as a VPWS solution.

Answer 14

C