Figure: VLL resilience with pseudowire redundancy and switching
T-PE1
The following shows an example of the T-PE1 configuration:
*A:ALA-T-PE1>config>service>epipe# info
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endpoint "x" create
exit
endpoint "y" create
exit
spoke-sdp 1:100 endpoint "y" create
precedence primary
revert-time 0
exit
spoke-sdp 4:400 endpoint "y" create
precedence 0
exit
no shutdown
----------------------------------------------
*A:ALA-T-PE1>config>service>epipe#
The following shows an example of the T-PE2 configuration for 7950 XRS.
T-PE2
*A:ALA-T-PE2>config>service>epipe# info
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endpoint "x" create
exit
endpoint "y" create
exit
sap endpoint "x" create
exit
spoke-sdp 3:300 endpoint "y" create
precedence primary
revert-time 0
exit
spoke-sdp 6:600 endpoint "y" create
precedence 0
exit
no shutdown
----------------------------------------------
*A:ALA-T-PE2>config>service>epipe#
The following shows and example of the T-PE2 configuration for 7450 ESS and 7750 SR.
T-PE2
*A:ALA-T-PE2>config>service>epipe# info
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endpoint "x" create
exit
endpoint "y" create
exit
sap 2/2/2:200 endpoint "x" create
exit
spoke-sdp 3:300 endpoint "y" create
precedence primary
revert-time 0
exit
spoke-sdp 6:600 endpoint "y" create
precedence 0
exit
no shutdown
----------------------------------------------
*A:ALA-T-PE2>config>service>epipe#
S-PE1
Specifying the vc-switching parameter enables a VC cross-connect, so the service manager does not signal the VC label mapping immediately, but puts this into passive mode.
The following example shows the configuration:
*A:ALA-S-PE1>config>service>epipe# info
----------------------------------------------
...
spoke-sdp 2:200 create
exit
spoke-sdp 3:300 create
exit
no shutdown
----------------------------------------------
*A:ALA-S-PE1>config>service>epipe#
S-PE2
Specifying the vc-switching parameter enables a VC cross-connect, so the service manager does not signal the VC label mapping immediately, but puts this into passive mode.
The following example shows the configuration:
*A:ALA-S-PE2>config>service>epipe# info
----------------------------------------------
...
spoke-sdp 2:200 create
exit
spoke-sdp 3:300 create
exit
no shutdown
----------------------------------------------
*A:ALA-S-PE2>config>service>epipe#