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| author | vivek <vivek@cumulusnetworks.com> | 2019-02-27 12:52:34 +0100 |
|---|---|---|
| committer | vivek <vivek@cumulusnetworks.com> | 2019-02-27 12:52:34 +0100 |
| commit | 0483af6e4c6236ae3b9ac412742411499175de80 (patch) | |
| tree | db7b024755a6ce922c93a274a91b86603899d12a /bgpd/bgp_evpn.c | |
| parent | Merge pull request #3844 from opensourcerouting/rpm-new-libyang (diff) | |
| download | frr-0483af6e4c6236ae3b9ac412742411499175de80.tar.xz frr-0483af6e4c6236ae3b9ac412742411499175de80.zip | |
zebra, bgpd: Exchange L3 interface for VRF's VNI
In the case of EVPN symmetric routing, the tenant VRF is associated with
a VNI that is used for routing and commonly referred to as the L3 VNI or
VRF VNI. Corresponding to this VNI is a VLAN and its associated L3 (IP)
interface (SVI). Overlay next hops (i.e., next hops for routes in the
tenant VRF) are reachable over this interface.
https://tools.ietf.org/html/draft-ietf-bess-evpn-prefix-advertisement
section 4.4 provides additional description of the above constructs.
The implementation currently derives this L3 interface for EVPN tenant
routes using special code that looks at route flags. This patch
exchanges the L3 interface between zebra and bgpd as part of the L3-VNI
exchange in order to eliminate some this special code.
Signed-off-by: Vivek Venkatraman <vivek@cumulusnetworks.com>
Reviewed-by: Anuradha Karuppiah <anuradhak@cumulusnetworks.com>
Reviewed-by: Donald Sharp <sharpd@cumulusnetworks.com>
Diffstat (limited to 'bgpd/bgp_evpn.c')
| -rw-r--r-- | bgpd/bgp_evpn.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/bgpd/bgp_evpn.c b/bgpd/bgp_evpn.c index 1471bd982..4a8fe111b 100644 --- a/bgpd/bgp_evpn.c +++ b/bgpd/bgp_evpn.c @@ -5396,7 +5396,8 @@ static void link_l2vni_hash_to_l3vni(struct hash_bucket *bucket, } int bgp_evpn_local_l3vni_add(vni_t l3vni, vrf_id_t vrf_id, struct ethaddr *rmac, - struct in_addr originator_ip, int filter) + struct in_addr originator_ip, int filter, + ifindex_t svi_ifindex) { struct bgp *bgp_vrf = NULL; /* bgp VRF instance */ struct bgp *bgp_def = NULL; /* default bgp instance */ @@ -5444,14 +5445,11 @@ int bgp_evpn_local_l3vni_add(vni_t l3vni, vrf_id_t vrf_id, struct ethaddr *rmac, SET_FLAG(bgp_vrf->vrf_flags, BGP_VRF_AUTO); } - /* associate with l3vni */ + /* associate the vrf with l3vni and related parameters */ bgp_vrf->l3vni = l3vni; - - /* set the router mac - to be used in mac-ip routes for this vrf */ memcpy(&bgp_vrf->rmac, rmac, sizeof(struct ethaddr)); - - /* set the originator ip */ bgp_vrf->originator_ip = originator_ip; + bgp_vrf->l3vni_svi_ifindex = svi_ifindex; /* set the right filter - are we using l3vni only for prefix routes? */ if (filter) |