Configuring L2Cp Tunneling; L2Protocol-Tunnel Tunnel-Dmac; Table 140: L2 Protocol Tunnel Commands - Edge-Core ECS4810-12M Layer 2 Management Manual

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l2protocol-tunnel

This section describes the commands used to configure Layer 2 Protocol

Tunneling (L2PT).

l2protocol-tunnel

Configures the destination address for Layer 2 Protocol

Enables Layer 2 Protocol Tunneling for the specified

l2protocol-tunnel

show l2protocol-tunnel

Shows settings for Layer 2 Protocol Tunneling

This command configures the destination address for Layer 2 Protocol

Tunneling (L2PT). Use the no form to restore the default setting.

l2protocol-tunnel tunnel-dmac mac-address

mac-address – The switch rewrites the destination MAC address in

all upstream L2PT protocol packets (i.e, STP BPDUs) to this value,

and forwards them on to uplink ports. The MAC address must be

specified in the format xx-xx-xx-xx-xx-xx or xxxxxxxxxxxx.

The tunnel address can be any multicast address, except for the

IPv4 multicast addresses (with prefix 01-00-5E)

IPv6 multicast addresses (with prefix 33-33-33)

Addresses used by the spanning tree protocol.

01-12-CF-.00-00-02, proprietary tunnel address

Global Configuration

When L2PT is not used, protocol packets (such as STP) are flooded to

802.1Q access ports on the same edge switch, but filtered from 802.1Q

tunnel ports. This creates disconnected protocol domains in the

customer's network.

L2PT can be used to pass various types of protocol packets belonging to

the same customer transparently across a service provider's network.

In this way, normally segregated network segments can be configured

to function inside a common protocol domain.

L2PT encapsulates protocol packets entering ingress ports on the

service provider's edge switch, replacing the destination MAC address

| VLAN Commands

Configuring L2CP Tunneling

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