Alcatel-Lucent 7450 Manual page 279

secondary standby path that is in the up state will case the path to be torn down and re-signaled using
the SRLG constraint.
The no form of the command reverts to the default value.
Default no srlg
standby
Syntax [no] standby
Context config>router>mpls>lsp>secondary
Description
The secondary path LSP is normally signaled once the primary path LSP fails. The standby keyword
ensures that the secondary path LSP is signaled and maintained indefinitely in a hot-standby state.
When the primary path is re-established then the traffic is switched back to the primary path LSP.
The no form of this command specifies that the secondary LSP is signaled when the primary path
LSP fails.
Default none
path-preference
Syntax [no] path-preference value
Context config>router>mpls>lsp>secondary
Description This command enables use of path preference among configured standby secondary paths per LSP. If
all standby secondary paths have a default path-preference value then a non-standby secondary path
will remain the active path while a standby secondary is available. A standby secondary path
configured with highest priority (lowest path-preference value) must be made the active path when
the primary is not in use. Path preference can be configured on standby secondary path.
The no form of this command resets the path-preference to the default value.
Default 255
Parameters value — Specifies an alternate path for the LSP if the primary path is not available,
7450 ESS MPLS Guide
1–255
MPLS and RSVP
Page 279