Alcatel-Lucent 7450 Configuration Manual page 196

Router Interface Commands
srlg-enable
Syntax [no] srlg-enable
Context config>router>route-next-hop-policy>template
Description
This command configures the SRLG constraint into the route next-hop policy template.
When this command is applied to a prefix, the LFA SPF will attempt to select an LFA next-hop,
among the computed ones, which uses an outgoing interface that does not participate in any of the
SLRGs of the outgoing interface used by the primary next-hop.
Note that the SRLG criterion is applied before running the LFA next-hop selection algorithm.
The no form deletes the SRLG constraint from the route next-hop policy template.
protection-type
Syntax protection-type {link | node}
no protection-type
Context config>router>route-next-hop-policy>template
Description
This command configures the protection type constraint into the route next-hop policy template.
The user can select if link protection or node protection is preferred in the selection of an LFA next-
hop for all IP prefixes and LDP FEC prefixes to which a route next-hop policy template is applied.
The default in SR OS implementation is node protection. The implementation will fall back to the
other type if no LFA next-hop of the preferred type is found.
When the route next-hop policy template is applied to an IP interface, all prefixes using this interface
as a primary next-hop will follow the protection type preference specified in the template.
The no form deletes the protection type constraint from the route next-hop policy template.
Parameters {link | node} — Specifies the two possible values for the protection type.
nh-type
Syntax nh-type {ip | tunnel}
no nh-type
Context config>router>route-next-hop-policy>template
Description This command configures the next-hop type constraint into the route next-hop policy template.
The user can select if tunnel backup next-hop or IP backup next-hop is preferred. The default in
SROS implementation is to prefer IP next-hop over tunnel next-hop. The implementation will fall
back to the other type if no LFA next-hop of the preferred type is found.
Page 196
Default node
7450 ESS Router Configuration Guide