Configuring l2cp tunneling, L2protocol-tunnel tunnel-dmac, Table 88 – Brocade Communications Systems Brocate Ethernet Access Switch 6910 User Manual

Page 444

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394

Brocade 6910 Ethernet Access Switch Configuration Guide

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Configuring L2CP Tunneling

20

Console#show dot1q-tunnel service 100

802.1Q Tunnel Service Subscriptions

Port Match C-VID S-VID

-------- ----------- -----

Eth 1/ 5 1 100

Eth 1/ 6 1 100

Console#

Related Commands

switchport dot1q-tunnel mode

(

389

)

Configuring L2CP Tunneling

This section describes the commands used to configure Layer 2 Protocol Tunneling (L2PT).

l2protocol-tunnel tunnel-dmac

This command configures the destination address for Layer 2 Protocol Tunneling (L2PT). Use the no
form to restore the default setting.

Syntax

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.

Default Setting

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

Command Mode

Global Configuration

Command Usage

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.

TABLE 88

L2 Protocol Tunnel Commands

Command

Function

Mode

l2protocol-tunnel
tunnel-dmac

Configures the destination address for Layer 2 Protocol
Tunneling

GC

switchport l2protocol-tunnel

Enables Layer 2 Protocol Tunneling for the specified protocol IC

show l2protocol-tunnel

Shows settings for Layer 2 Protocol Tunneling

PE

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