Cisco Asr 9000 Series Aggregation Services Router Vpn And Ethernet Services Command Reference, Release - Cisco ASR 9000 Series Reference Manual

Point to Point Layer 2 Services Commands
• Cisco Discovery Protocol (CDP)—CDP is protocol-independent and is used to obtain protocol addresses,
• PVST maintains a spanning tree instance for each VLAN configured in the network and permits a VLAN
• Spanning-Tree Protocol (STP)—STP is a link management protocol that provides path redundancy in
• VLAN Trunk Protocol (VTP)—VTP is a Cisco-proprietary protocol that reduces administration in a
Task ID
Task ID
l2vpn
atm
Examples The following example shows how to configure Layer 2 protocol handling:
RP/0/RSP0/CPU0:router# configure
RP/0/RSP0/CPU0:router(config)# interface GigabitEthernet 0/0/0/0
RP/0/RSP0/CPU0:router(config-if)# l2transport l2protocol cpsv reverse-tunnelstp drop
Related Commands
Command
show l2vpn forwarding, on page 170
platform information, and other data about neighboring devices.
trunk to be forwarding for some VLANs and not for others. It can also load balance Layer 2 traffic by
forwarding some VLANs on one trunk and other VLANs n others.
the network. For Ethernet networks to function properly, only one active path can exist between two
stations.
switched network. When you configure a new VLAN on one VTP server, the VLAN is distributed
through all switches in the domain.

Cisco ASR 9000 Series Aggregation Services Router VPN and Ethernet Services Command Reference, Release

Operations
read, write
read, write
Description
Displays forwarding information from the layer2_fib manager
on the line card.
l2transport l2protocol
6.1.x
95