# Why Are We Using EVPN Instead of SPB or TRILL?

DevFeed: [Why Are We Using EVPN Instead of SPB or TRILL?](<https://devfeed.tech/articles/why-are-we-using-evpn-instead-of-spb-or-trill-10991.md>)

Original publisher: [Read original article](<https://blog.ipspace.net/2024/04/spb-trill-evpn/>)

Published: 2024-04-05T06:17:00Z

Content type: article

Language: en

Sources: [ipSpace.net blog](<https://devfeed.tech/sources/ipspace-net-blog.md>)

Topics: [evpn](<https://devfeed.tech/topics/evpn.md>), [networking](<https://devfeed.tech/topics/networking.md>), [VXLAN](<https://devfeed.tech/topics/vxlan.md>), [IS-IS](<https://devfeed.tech/topics/is-is.md>), [Routing (disambiguation)](<https://devfeed.tech/topics/routing.md>), [BGP](<https://devfeed.tech/topics/bgp.md>)

Tags: [bgp](<https://devfeed.tech/tags/bgp.md>), [bridging](<https://devfeed.tech/tags/bridging.md>), [evpn](<https://devfeed.tech/tags/evpn.md>), [fabric](<https://devfeed.tech/tags/fabric.md>), [gre](<https://devfeed.tech/tags/gre.md>), [is-is](<https://devfeed.tech/tags/is-is.md>), [mpls](<https://devfeed.tech/tags/mpls.md>), [network](<https://devfeed.tech/tags/network.md>), [routing](<https://devfeed.tech/tags/routing.md>), [vxlan](<https://devfeed.tech/tags/vxlan.md>)

## AI overview

The article explains why EVPN, particularly with VXLAN encapsulation, became preferable to SPB and TRILL. It contrasts their encapsulation, control-plane, deployment, and transport requirements, and notes that VXLAN separates edge virtual networks from the physical transport core.

## Source excerpt

Dan left an interesting comment on one of my previous blog posts: It strikes me that the entire industry lost out when we didn't do SPB or TRILL. Specifically, I like how Avaya did SPB. Oh, we did TRILL. Three vendors did it in different proprietary ways, but I'm digressing. Read more ...