Virtual Leased Line Services
7210 SAS M Services Guide Page 193
Configuring VLL Resilience
Figure 33 displays an example to create VLL resilience. Note that the zero revert-time value 
means that the VLL path will be switched back to the primary immediately after it comes
back up.
Figure 33: VLL Resilience
PE1:
The following displays an example for the configuration on PE1.
*A:ALA-48>config>service>epipe# info
----------------------------------------------
            endpoint "x" create
            exit
            endpoint "y" create
            exit
            spoke-sdp 1:100 endpoint "y" create
                precedence primary
            exit
            spoke-sdp 2:200 endpoint "y" create
                precedence 1
            exit
            no shutdown
----------------------------------------------
*A:ALA-48>config>service>epipe#
   OSSG246
PE-2
spoke-sdp 1:100
spoke-sdp 2:200
sap 1/2/1:100
sap 1/1/1:100
sap 1/1/2:100
PE-3
7210 SAS M
BRAS