diff options
| author | Trey Aspelund <taspelund@nvidia.com> | 2023-05-08 02:51:28 +0000 |
|---|---|---|
| committer | Trey Aspelund <taspelund@nvidia.com> | 2023-05-30 15:20:35 +0000 |
| commit | 65cdb9ce9ba7141b47796692ff870eddc531656b (patch) | |
| tree | 577d311b3bf3758a9847acc726a907f57e86f093 /bgpd/bgp_ecommunity.c | |
| parent | 5d5d12677711374e0a2e644fd7971a85d44fdb04 (diff) | |
bgpd: Add MAC-VRF Site-of-Origin support
Initial support for configuring an SoO for all MAC-VRFs (EVIs/L2VNIs).
This provides a topology-independent method of preventing EVPN routes
from one MAC-VRF "site" (an L2 domain) from being imported by other PEs
in the same MAC-VRF "site", similar to how SoO is traditionally used in
L3VPN to identify and break loops for an L3/IP-VRF "site".
One example of where a MAC-VRF SoO can be used to avoid an L2 control
plane loop is with Active/Active MLAG VTEPs. For a given L2 site only
one control plane should be active. SoO can be used to ID/ignore entries
originated from the local MAC-VRF site so that EVPN will not attempt to
manage entries that are already handled by MLAG.
Signed-off-by: Trey Aspelund <taspelund@nvidia.com>
Diffstat (limited to 'bgpd/bgp_ecommunity.c')
| -rw-r--r-- | bgpd/bgp_ecommunity.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/bgpd/bgp_ecommunity.c b/bgpd/bgp_ecommunity.c index a555930137..29b2250747 100644 --- a/bgpd/bgp_ecommunity.c +++ b/bgpd/bgp_ecommunity.c @@ -1765,3 +1765,18 @@ struct ecommunity *ecommunity_replace_linkbw(as_t as, struct ecommunity *ecom, return new; } + +bool soo_in_ecom(struct ecommunity *ecom, struct ecommunity *soo) +{ + if (ecom && soo) { + if ((ecommunity_lookup(ecom, ECOMMUNITY_ENCODE_AS, + ECOMMUNITY_SITE_ORIGIN) || + ecommunity_lookup(ecom, ECOMMUNITY_ENCODE_AS4, + ECOMMUNITY_SITE_ORIGIN) || + ecommunity_lookup(ecom, ECOMMUNITY_ENCODE_IP, + ECOMMUNITY_SITE_ORIGIN)) && + ecommunity_include(ecom, soo)) + return true; + } + return false; +} |