target-attachment-identifier (Protocols VPWS)
Syntax
target-attachment-identifier identifier;
Hierarchy Level
[edit logical-systems logical-system-name routing-instances instance-name protocols l2vpn site site-name interface interface-name], [edit routing-instances instance-name protocols l2vpn site site-name interface interface-name]
Description
For FEC 129, specify the VPWS target attachment identifier. The point-to-point nature of VPWS requires that you specify the source access individual identifier (SAII) and the target access individual identifier (TAII). This SAII-TAII pair defines a unique pseudowire between two PE devices.
Auto-discovery routes are used by BGP to allow auto-discovery of SAIIs (the sources of the point-to-point pseudowires). One auto-discovery route is advertised for each source attachment identifier (SAI) in the instance or mesh group.
The SAII is specified with the source-attachment-identifier statement within the FEC 129 VPWS routing instance. You configure
the source attachment identifier and the interfaces to associate with
that source attachment identifier. Under each interface, you can configure
the TAII with the target-attachment-identifier statement.
If the configured target identifier matches a source identifier advertised
by a remote PE device by way of a BGP auto-discovery message, the
pseudowire between that source-target pair is signaled. If there is
no match between an advertised source identifier and the configured
target identifier, the pseudowire is not established.
Options
identifier—The numerical identifier for the Layer 2 VPN site.
Range: 1 through 4,292,967,295
Required Privilege Level
routing—To view this statement in the configuration.
routing-control—To add this statement to the configuration.
Release Information
Statement introduced in Junos OS Release 13.2.