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Merge pull request #6463 from vivek-cumulus/evpn_extend_nht

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bgpd: Extend EVPN next hop tracking for additional EVPN routes
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Sri Mohana Singamsetty 2020-05-26 08:18:29 -07:00 committed by GitHub
commit 06fba5cb4c
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1 changed files with 9 additions and 8 deletions
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17
bgpd/bgp_evpn.c
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@ -6310,16 +6310,17 @@ bool bgp_evpn_is_prefix_nht_supported(const struct prefix *pfx)
struct prefix_evpn *evp = (struct prefix_evpn *)pfx;
/*
* EVPN RT-5 should not be marked as valid and imported to vrfs if the
* BGP nexthop is not reachable. To check for the nexthop reachability,
* Add nexthop for EVPN RT-5 for nexthop tracking.
*
* Ideally, a BGP route should be marked as valid only if the
* nexthop is reachable. Thus, other EVPN route types also should be
* added here after testing is performed for them.
* EVPN routes should be marked as valid only if the nexthop is
* reachable. Only if this happens, the route should be imported
* (into VNI or VRF routing tables) and/or advertised.
* Note: This is currently applied for EVPN type-2, type-3 and
* type-5 routes. It may be tweaked later on for other routes, or
* even removed completely when all routes are handled.
*/
if (pfx && pfx->family == AF_EVPN &&
evp->prefix.route_type == BGP_EVPN_IP_PREFIX_ROUTE)
(evp->prefix.route_type == BGP_EVPN_MAC_IP_ROUTE ||
evp->prefix.route_type == BGP_EVPN_IMET_ROUTE ||
evp->prefix.route_type == BGP_EVPN_IP_PREFIX_ROUTE))
return true;
return false;