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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 next-hop type preference specified in the template.
The no form deletes the next-hop type constraint from the route next-hop policy template.
Parameters
{ip | tunnel} — Specifies the two possible values for the next-hop type.
lfa-policy-map
Syntax
lfa-policy-map route-nh-template template-name
no lfa-policy-map
Context
config>router>ospf>area>interface
config>router>ospf3>area>interface
config>router>isis>interface
config>service>vprn>ospf>area>interface
config>service>vprn>ospf3>area>interface
Description
This command applies a route next-hop policy template to an OSPF or IS-IS interface.
When a route next-hop policy template is applied to an interface in IS-IS, it is applied in both level 1
and level 2. When a route next-hop policy template is applied to an interface in OSPF, it is applied in
all areas. However, the command in an OSPF interface context can only be executed under the area in
which the specified interface is primary and then applied in that area and in all other areas where the
interface is secondary. If the user attempts to apply it to an area where the interface is secondary, the
command will fail.
If the user excluded the interface from LFA using the command loopfree-alternate-exclude, the LFA
policy, if applied to the interface, has no effect.
Finally, if the user applied a route next-hop policy template to a loopback interface or to the system
interface, the command will not be rejected, but it will result in no action being taken.
The no form deletes the mapping of a route next-hop policy template to an OSPF or IS-IS interface.
Parameters
template-name — Specifies the name of the template, up to 32 characters.
loopfree-alternate-exclude
Syntax
loopfree-alternate-exclude prefix-policy prefix-policy [prefix-policy... up to 5]
no loopfree-alternate-exclude
Context
config>router>ospf
config>router>ospf3
config>router>isis
config>service>vprn>ospf
config>service>vprn>ospf3
Description
This command excludes from LFA SPF calculation prefixes that match a prefix entry or a tag entry in
a prefix policy.
7750 SR OS Router Configuration Guide
Default
ip
IP Router Configuration
Page 181
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