Nokia 7330 - Using Spoke SDP Control Words

FD 100/320Gbps NT and FX NT IHub Services Guide Virtual Leased Line Services
Issue: 13 3HH-11985-AAAA-TQZZA 119
no shutdown
4.4.4 Using Spoke SDP Control Words
When control word is enabled, the Admin Control Word is set to Preferred. It is
necessary that both sides of the VLL have control word enabled or disabled for the
pipe to be up.
The control word state will be set to True or False depending on what is configured
on both sides of the VLL, either enabled (True) or disabled (False). When both sides
are enabled (True) then the state is True. If one side is enabled (True) but the other
side is disabled (False), then the state is False.
Note that VCCV ping is a multi-segment pseudowire. For a single-hop pseudowire,
only the peer VCCV CC bit of the control word is advertised when the control word is
enabled on the pseudowire. VCCV ping on multi-segment pseudowires require that
the control word be enabled in all segments of the VLL.
If the control word is not enabled on spoke SDP it will not be signaled peer VCCV CC
bits to the far end, consequently VCCV ping cannot be successfully initiated on that
specific spoke SDP.
The following displays a spoke SDP control word configuration example:
*A:ALA-Dut-B>configure>service>epipe# info
----------------------------------------------
description "Default epipe description for service id 2100"
sap lt:1/1/1:4 create
description "Default sap description for service id 2100"
exit
spoke-sdp 1:2001 create
control-word
exit
no shutdown
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*A:ALA-Dut-B>configure>service>epipe#
To disable the control word on spoke-sdp 1:2001, use the no control-word
command.
*A:ALA-Dut-B>configure>service>epipe# info
----------------------------------------------
description "Default epipe description for service id 2100"
sap lt:1/1/1:4create
description "Default sap description for service id 2100"
exit
spoke-sdp 1:2001 create
no control-word
exit
no shutdown
----------------------------------------------
*A:ALA-Dut-B>configure>service>epipe#
See the “control-word” command for the show command output examples.