Nokia 7330 - Control-Word; Table 144 Control-Word Command; Table 145 Hash-Label Command

Virtual Private LAN Service
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FD 100/320Gbps NT and FX NT IHub Services Guide
3HH-11985-AAAA-TQZZA Issue: 13
5.16.2.20 control-word
Table 144 control-word command
5.16.2.21 hash-label
Table 145 hash-label command
Item Description
Syntax egress
Context configure>service>vpls>mesh-sdp
configure>service>vpls>spoke-sdp
configure>service>pw-template
Description This command enables the use of the control word on pseudowire packets in VPLS and
enables the use of the control word individually on each mesh-sdp or spoke-sdp. By default,
the control word is disabled.
When the control word is enabled, all VPLS packets, including the BPDU frames, are
encapsulated with the control word when sent over the pseudowire.
The T-LDP control plane behavior is the same as in the implementation of control word for VLL
services. The C bit in the pseudowire FEC sent in the label mapping message is set to a value
of 1 when the control word is enabled. It is set to zero when the control word is disabled. The
configuration for the two directions of the Ethernet pseudowire should match. Each node will
signal the C bit value as per the local mesh SDP or spoke-sdp configuration. An ISAM node
receiving a label mapping message with a C bit different from the local configuration must
withdraw its own label mapping message if one was sent. The service will only come up if the
same C bit value is signaled in both directions.
The no form of the command reverts the mesh SDP or spoke-sdp to the default behavior of
not using the control word.
Default no control word
Item Description
Syntax [no] hash-label
Context configure>service>vpls>mesh-sdp
configure>service>epipe>spoke-sdp
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