Implementing and Operating Cisco Service Provider Network Core Technologies (SPCOR) — Question 117

A network engineer is deploying VPLS configuration between multiple PE routers so that customer's remote offices have end-to-end LAN connectivity. Which additional configuration should the engineer perform on the PE routers to enable the virtual switch instance?

Answer options

• A. l2 vfi ciscotest manual vpn id 100 neighbor 192.168.2.2 encapsulation mpls neighbor 192.168.3.3 encapsulation mpls
• B. interface GigEthernet 1/1 switchport mode trunk switchport trunk encap dot1q switchport trunk allow vlan 2-10
• C. interface Vlan 5 xconnect vfi ciscotest
• D. interface Vlan 100 xconnect vfi ciscotest ip address 192.168.1.1 255.255.255

Correct answer: A

Explanation

The correct answer, A, is necessary as it directly configures the VPLS virtual forwarding instance (VFI) and specifies the neighbors for encapsulation using MPLS, which is essential for establishing the virtual switch instance. Options B, C, and D are related to switchport configuration and VLAN setup but do not establish the required VFI for VPLS operation.