# RFC 10005: BGP Community for link capacity

DevFeed: [RFC 10005: BGP Community for link capacity](<https://devfeed.tech/articles/rfc-10005-bgp-community-for-link-capacity-40166.md>)

Original publisher: [Read original article](<https://blog.j2sw.com/netops/rfc-10005-bgp-link-bandwidth/>)

Author: j2sw

Published: 2026-07-01T13:31:00Z

Content type: article

Language: en

Sources: [Justin Wilson (j2sw)](<https://devfeed.tech/sources/justin-wilson-j2sw.md>)

Topics: [BGP](<https://devfeed.tech/topics/bgp.md>), [standard](<https://devfeed.tech/topics/standard.md>), [Load Balancing](<https://devfeed.tech/topics/load-balancing.md>), [Network](<https://devfeed.tech/topics/network.md>)

Tags: [bgp](<https://devfeed.tech/tags/bgp.md>), [capacity](<https://devfeed.tech/tags/capacity.md>), [internet](<https://devfeed.tech/tags/internet.md>), [load-balancing](<https://devfeed.tech/tags/load-balancing.md>), [network](<https://devfeed.tech/tags/network.md>), [network-operations](<https://devfeed.tech/tags/network-operations.md>), [rfc](<https://devfeed.tech/tags/rfc.md>), [rfc-10005](<https://devfeed.tech/tags/rfc-10005.md>), [route](<https://devfeed.tech/tags/route.md>), [routers](<https://devfeed.tech/tags/routers.md>), [routing](<https://devfeed.tech/tags/routing.md>), [standard](<https://devfeed.tech/tags/standard.md>), [traffic](<https://devfeed.tech/tags/traffic.md>)

## AI overview

RFC 10005 defines a BGP extended community for carrying link bandwidth information in routes. When multiple BGP paths are eligible, routers can use the value to weight traffic according to link capacity, while normal best-path policy still determines route eligibility. The RFC is currently a draft.

## Source excerpt

RFC 10005 defines a BGP extended community that lets a router attach link bandwidth information to a route. Another router can use that value when it spreads traffic across multiple BGP paths. RFC 10005 matters because links are not always of the same capacity. This RFC provides routers with a standard way to carry bandwidth ... Read more The post RFC 10005: BGP Community for link capacity appeared first on Justin Wilson (j2sw).