Qtech QSW-3200-24T [43/146] L2 tunnel

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QTECH(config-if-ethernet-0/1)#dtag mode customer

3.8 l2-tunnel

3.8.1 Brief introduction of l2-tunnel

In VPN network, some protocol packets received by service-provider network edge need to be

encapsulated in a certain form. The internal devices of SP network can recognize and

transparent transmit this encapsulated packets, and restore it in the other side of SP network.

3.8.2 L2-tunnel configuration list

 Enable/disable l2-tunnel

 Show port l2-tunnel status

 Configure/cancel l2-tunnel drop threshold

 Show l2-tunnel drop threshold

3.8.3 Enable/disable l2-tunnel

Configure protocols which need to enable l2-tunnel. Configure it in interface configuration

mode:

 Enable port l2-tunnel

 Disable port l2-tunnel

Parameter:

cdp: cisco's cdp packets

pagp: cisco's pagp packet

lacp: lacp packet

stp: stp packet

udld: cisco's udld packet

vtp: cisco's vtp packet

Example:

! Configure l2-tunnel for STP packet on e0/1.

QTECH(config-if-ethernet-0/1)#l2-tunnel stp

3.8.4 Show port l2-tunnel status

In any configuration mode:

 Show l2-tunnel

show l2-tunnel interface [ interface-list ]

Example:

! Show l2-tunnel for all ports

QTECH(config)#show l2-tunnel interface

3.8.5 Configure /cancel l2-tunnel drop threshold

Configure in global configuration mode:

 Configure speed rate for l2-tunnel packet up to cpu