nanog mailing list archives
Re: Layer 2 based anycast - Kind like GLBP - Research
From: Baldur Norddahl <baldur.norddahl () gmail com>
Date: Thu, 1 Jul 2021 21:46:04 +0200
tor. 1. jul. 2021 21.06 skrev William Herrin <bill () herrin us>:
From what I understand of EVPN, it's about creating something equivalent to VLANs across a distributed virtual server infrastructure. Basically like what Amazon does under the hood for its virtual private cloud. Since you're trying to get the machines to appear on the same subnet, not separate them to different subnets, I don't think it's what you're looking for.
EVPN creates a virtual layer 2 domain, aka a vlan, that can span the internet or be used on a plain old layer 2 switch. It uses vxlan or mpls tunnels and BGP to coordinate. EVPN has support for multiple active/active exits, something almost like lacp. There can be load balancing using layer 3 headers as key, which might be exactly what OP is looking for. EVPN elimates layer 2 flooding by keeping a database of MAC addresses in BGP. Otherwise it behaves exactly like a vlan with extra features.
Current thread:
- Layer 2 based anycast - Kind like GLBP - Research Douglas Fischer (Jul 01)
- Re: Layer 2 based anycast - Kind like GLBP - Research colin johnston (Jul 01)
- Re: Layer 2 based anycast - Kind like GLBP - Research Baldur Norddahl (Jul 01)
- Re: Layer 2 based anycast - Kind like GLBP - Research William Herrin (Jul 01)
- Re: Layer 2 based anycast - Kind like GLBP - Research Baldur Norddahl (Jul 01)
- Re: Layer 2 based anycast - Kind like GLBP - Research Douglas Fischer (Jul 02)
- Re: Layer 2 based anycast - Kind like GLBP - Research Masataka Ohta (Jul 01)
- Re: Layer 2 based anycast - Kind like GLBP - Research Douglas Fischer (Jul 02)
- RE: Layer 2 based anycast - Kind like GLBP - Research Jean St-Laurent via NANOG (Jul 02)
- Re: Layer 2 based anycast - Kind like GLBP - Research Masataka Ohta (Jul 02)
- Re: Layer 2 based anycast - Kind like GLBP - Research Douglas Fischer (Jul 02)
- Re: Layer 2 based anycast - Kind like GLBP - Research Dobbins, Roland (Jul 02)