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What are the differences between VPN FRR, BGP FRR, and VPNv4 FRR

Created: Jan 23, 2020 01:18:01Latest reply: Jan 23, 2020 01:18:26 268 1 1 0 1
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Hi, everyone.

I have some questions:

1. VPN FRR backs up an outer label for the destination VPN (inner label). The inner label remains unchanged. Is that right?

2. What are the differences between BGP FRR and VPN FRR?

3. What are the differences between VPNv4 FRR and VPN FRR?

Will someone help me answer these questions? Thank you!


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DDSN
Admin Created Jan 23, 2020 01:18:26

Hi, WDNJSQ.
1. VPN FRR protects PEs by backing up a BGP next-hop. The backup outer label is LDP FRR.
2. BGP can transmit both IPv4 routes (public network routes) and VPN routes (VPNv4 or VPNv6 routes). BGP FRR and VPN FRR both protect the BGP next hop, one for the public network and the other for VPN routes.
3. VPN FRR can be VPNv4 FRR or VPNv6 FRR. VPN FRR is a general term, and VPNv4 FRR only defines the address family.
I hope my answer will help you.
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DDSN
DDSN Admin Created Jan 23, 2020 01:18:26

Hi, WDNJSQ.
1. VPN FRR protects PEs by backing up a BGP next-hop. The backup outer label is LDP FRR.
2. BGP can transmit both IPv4 routes (public network routes) and VPN routes (VPNv4 or VPNv6 routes). BGP FRR and VPN FRR both protect the BGP next hop, one for the public network and the other for VPN routes.
3. VPN FRR can be VPNv4 FRR or VPNv6 FRR. VPN FRR is a general term, and VPNv4 FRR only defines the address family.
I hope my answer will help you.
View more
  • x
  • convention：
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