Specifications

xconnect
MP-897
Cisco IOS Multiprotocol Label Switching Command Reference
January 2010
Command Modes Connect configuration
Interface configuration (config-if)
l2transport configuration (for ATM)
Command History
Usage Guidelines The combination of the pe
er-ip-address and vcid arguments must be unique on the router. Each xconnect
configuration must have a unique combination of peer-ip-address and vcid configuration.
Note If the remote router is a Cisco 12000 series Internet router, the peer-ip-address argument must specify a
loopback address on that router.
The same vcid value that identifies the attachment circuit must be configured using the xconnect
command on the local and remote PE router. The VC ID creates the binding between a pseudowire and
an attachment circuit.
With the introduction of VPLS Autodiscovery in Cisco IOS Release 12.2(33)SRB, the remote router ID
ne
ed not be the LDP router ID. The address you specify can be any IP address on the peer, as long as it
is reachable. When VPLS Autodiscovery discovers peer routers for the VPLS, the peer router addresses
might be any routable address.
Note The VPLS Autodiscovery feature is not supported with L2TPv3.
For L2TPv3, to manually configure the settings used in the attachment circuit, use the ma
nual keyword
in the xconnect command. This configuration is called a static session. The router is placed in xconnect
configuration mode, and you can then configure the following options:
• Local and remote session identifiers (using the l2tp id command) for local and remote PE routers at
each end of the session.
• Size of the cookie field used in the L2TPv3 headers of incoming (sent) packets from the remote PE
peer router (using the l2tp cookie local command).
• Size of the cookie field used in the L2TPv3 headers of outgoing (received) L2TP data packets (using
the l2tp cookie remote command).
• Interval used between sending hello keepalive messages (using the l2tp hello command).
Release Modification
12.0(23)S This command was introduced.
12.0(28)S Support was added for Multilink Frame Relay connections.
12.3(2)T This command was integrated into Cisco IOS Release 12.3(2)T.
12.2(25)S This command was integrated into Cisco IOS Release 12.2(25)S.
12.2(27)SBC This command was integrated into Cisco IOS Release 12.2(27)SBC.
12.4(11)T This command was integrated into Cisco IOS Release 12.4(11)T.
12.2(33)SRB This command was updated to add support for AToM static pseudowires, and so
th
at the remote router ID need not be the Label Distribution Protocol (LDP) router
ID of the peer.
12.2(33)SCC This command was integrated into Cisco IOS Release 12.2(33)SCC.