Cisco Systems 15310-MA 7.12.2.1 Shared Resource Link Group

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Cisco ONS 15310-MA SDH Reference Manual, Release 9.1 and Release 9.2
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Chapter 7 Circuits and Tunnels
Server Trails
For a detailed procedure on how to route a VCAT circuit over a server trail, refer “Chapter 6, Create
Circuits and VT Tunnels, Section NTP-A264, Create an Automatically Routed VCAT Circuit and
Section NTP-A265, Create a Manually Routed VCAT Circuit” in the Cisco ONS 15454 Procedure
Guide.
7.12.2.1 Shared Resource Link Group
The Shared Resource Link Group (SRLG) attribute can be assigned to a server trail link using a
commonly shared resource such as port, fiber or span. For example, if two server trail links are routed
over the same fiber, an SRLG attribute can be assigned to these links. SR LG is used by Cisco Transpo rt
Manager (CTM) to specify link diversity. If you create multiple server trails from one port, you can
assign the same SRLG value to all the links to indicate that they originate from the same port.