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Ethernet Card Software Feature and Configuration Guide, R7.2
January 2009
Appendix A Command Reference
[no] xconnect [destination] [vc-id] [encapsulation mpls]
[no] xconnect [destination] [vc-id] [encapsulation mpls]
Use this command at customer-edge (CE) or service provider-edge customer-located equipment
(PE-CLE) ingress and egress Ethernet ports, or at dot1Q VLAN subinterfaces with a destination and
virtual connection identifier (VC ID) to route Layer 2 packets over a specified point-to-point VC by
using Ethernet over multiprotocol label switching (EoMPLS). Use the no form of this command on both
edge devices to delete the VC.
Note This command replaces the mpls l2transport route command.
Syntax Description
Note Though visible in the command-line help strings, the pw-class keyword is not supported.
Defaults No point-to-point connections are configured by default.
Command Modes Interface configuration
Usage Guidelines An MPLS VC runs across an MPLS cloud to connect Ethernet interfaces on two PE-CLE devices at each
edge of the service provider network. You must enter the command at the PE device at each edge of the
service provider network to establish a bidirectional virtual connection, which consists of two
unidirectional label-switched paths (LSPs). A VC is not established if it i s not properly defined from
both ends.
For the destination parameter, specify the LDP IP address of the other PE-CLE device; do not specify
the IP address of the device on which you are entering the command.
The vc-id must be unique for each pair of provider edge devices. Therefore, in large networks, you
should keep track of the VC ID assignments to ensure th at a VC ID is not assigned more than once.
Examples This example shows how to establish an EoMPLS tunnel between the PE1 VLAN 3 interfaces and the
PE2 VLAN 4 interface. PE1 has IP address 10.0.0.1/32 that PE2 discovers through routing and PE2 has
IP address 20.0.0.1/32 that PE1 discovers through routing.
destination The destination label distribution protocol (LDP) IP address of the remote
provider edge device. The IP address cannot be an IP address on the route on
which the command is entered. The destination is required for the standard
form of the command. It cannot be used with the no form of the command.
vc-id Assign a vc-id for the virtual connection between the two peer provider edge
devices. The range is 1 to 4294967295. The vc-id is required for the standard
form of the command. It cannot be used with the no form of the command.
encapsulation mpls Specify the MPLS data encapsulation method.