Alcatel-Lucent 7450 Manual page 223

The configured SRLG membership will be applied in all levels/areas the interface is participating in.
The same interface cannot have different memberships in different levels/areas.
It should be noted that only the SRLGs bound to an MPLS interface are advertised in TE link TLVs
and sub-TLVs when the traffic-engineering option is enabled in IS-IS or OSPF. IES and VPRN
interfaces do not have their attributes advertised in TE TLVs.
The no form of this command deletes one or more of the SRLG memberships of an interface.
The user can also delete all memberships of an interface by not specifying a group name.
Default no srlg-group
Parameters
group-name — Specifies the name of the group, up to 32 characters. The association of group name
user-srlg-db
Syntax user-srlg-db [enable | disable]
Context config>router>mpls
Description This command enables the use of CSPF by the user SRLG database. When the MPLS module makes
a request to CSPF for the computation of an SRLG secondary path, CSPF will query the local SRLG
and compute a path after pruning links that are members of the SRLG IDs of the associated primary
path. When MPLS makes a request to CSPF for an FRR bypass or detour path to associate with the
primary path, CSPF queries the user SRLG database and computes a path after pruning links that are
members of the SRLG IDs of the PLR outgoing interface.
If an interface was not entered into the user SRLG database, it is assumed that it does not have any
SRLG membership. CSPF will not query the TE database for IGP advertised interface SRLG
information.
The disable keyword disables the use of the user SRLG database. CSPF will then resume queries into
the TE database for SRLG membership information. The user SRLG database is maintained.
Default user-srlg-db disable
srlg-database
Syntax [no] srlg-database
Context config>router>mpls
Description This command provides the context for the user to enter manually the link members of SRLG groups
for the entire network at any node that needs to signal LSP paths (for example, a head-end node).
The no form of the command deletes the entire SRLG database. CSPF will assume all interfaces have
no SRLG membership association if the database was not disabled with the command
config>router>mpls>user-srlg-db disable.
7450 ESS MPLS Guide
and value should be unique within an IP/MPLS domain.
MPLS and RSVP
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