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Frequent Contributor

What do i need to turn this Features on LFA-FRR

Hi

 

What do i need to turn this Features on LFA-FRR ?? i heard this feature do need user intervention to create tunnel as in MPLS-TE FRR

 

my core routing is OSPF

 

Thanks all

3 REPLIES 3
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Cisco Employee

Hi Ibrahim,

 

Assuming you have IOS/XE you can use the following guide to enable LFA for OSPFv2.

https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_ospf/configuration/xe-3s/iro-xe-3s-book/iro-lfa-frr.html

 

The basic configuration for LFA FRR is as simple as activating it under OSPF through "fast-reroute per-prefix enable prefix-priority priority-level"

 

For remote LFA also the RLFA node computation is dynamic and no pre provisioning/configuration is required.

 

regards

Ashish

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thanks bro for ur reply

Highlighted
Participant

Hello @Ibrahim Jamil

 

you just configure FRR under OSPF (and TE tunnels) and that's it.

 

perhaps you need to confirm the version you use includes LFA-FRR.

 

https://www.cisco.com/c/en/us/support/docs/ip/ip-routing/200225-Configure-Loop-Free-Alternate-path-with.html

CCIE 52804
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