Manual

Layer 2 Tunnel Protocol Version 3

Configuration Examples for Layer 2 Tunnel Protocol Version 3

Cisco IOS Releases 12.0(29)S and 12.2(25)S

interface Serial0/0

encapsulation frame-relay

frame-relay intf-type dce

connect one Serial0/0 100 l2transport

xconnect 10.0.3.201 555 pw-class fr-xconnect

connect two Serial0/0 200 l2transport

xconnect 10.0.3.201 666 pw-class fr-xconnect

Configuring Frame Relay Trunking Example

The following is a sample configuration for setting up a trunk connection for an entire serial interface

over a pseudowire. All incoming packets are switched to the pseudowire regardless of content.

Note that when you configure trunking for a serial interface, the trunk connection does not require an

encapsulation method. You do not, therefore, need to enter the encapsulation frame-relay command.

Reconfiguring the default encapsulation removes all Xconnect configuration settings from the interface.

interface Serial0/0

xconnect 10.0.3.201 555 pw-class serial-xconnect

Configuring QoS for L2TPv3 on the Cisco 7500 Series Example

The following example shows the MQC commands used on a Cisco 7500 series router to configure a

CIR guarantee of 256 kbps on DLCI 100 and 512 kbps for DLCI 200 on the egress side of a Frame Relay

interface that is also configured for L2TPv3 tunneling:

ip cef distributed

class-map dlci100

match fr-dlci 100

class-map dlci200

match fr-dlci 200

policy-map dlci

class dlci100

bandwidth 256

class dlci200

bandwidth 512

interface Serial0/0

encapsulation frame-relay

frame-relay interface-type dce

service-policy output dlci

connect one Serial0/0 100 l2transport

xconnect 10.0.3.201 555 encapsulation l2tpv3 pw-class mqc

connect two Serial0/0 200 l2transport

xconnect 10.0.3.201 666 encapsulation l2tpv3 pw-class mqc