diff options
| author | Anuradha Karuppiah <anuradhak@nvidia.com> | 2021-06-03 17:28:43 -0700 |
|---|---|---|
| committer | Donald Sharp <sharpd@nvidia.com> | 2022-03-18 07:37:06 -0400 |
| commit | 7b0db0e43fd470e2d386c36722069c0f8730f6c8 (patch) | |
| tree | 45d772eb740c08fd8e797832bf8a531801a19c10 /bgpd/bgp_evpn_private.h | |
| parent | f4a5218dc651e2fce5b1235154cec25cf4f955c3 (diff) | |
lib, bgpd: changes for EAD-per-ES fragmentation
The EAD-per-ES route carries ECs for all the ES-EVI RTs. As the number of VNIs
increase all RTs do not fit into a standard BGP UPDATE (4K) so the route needs
to be fragmented.
Each fragment is associated with a separate RD and frag-id -
1. Local ES-per-EAD -
ES route table - {ES-frag-ID, ESI, ET=0xffffffff, VTEP-IP}
global route table - {RD-=ES-frag-RD, ESI, ET=0xffffffff}
2. Remote ES-per-EAD -
VNI route table - {ESI, ET=0xffffffff, VTEP-IP}
global route table - {RD-=ES-frag-RD, ESI, ET=0xffffffff}
Note: The fragment ID is abandoned in the per-VNI routing table. At this
point that is acceptable as we dont expect more than one-ES-per-EAD fragment
to be imported into the per-VNI routing table. But that may need to be
re-worked at a later point.
CLI changes (sample with 4 VNIs per-fragment for experimental pruposes) -
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
root@torm-11:mgmt:~# vtysh -c "show bgp l2vpn evpn es 03:44:38:39:ff:ff:01:00:00:01"
ESI: 03:44:38:39:ff:ff:01:00:00:01
Type: LR
RD: 27.0.0.21:3
Originator-IP: 27.0.0.21
Local ES DF preference: 50000
VNI Count: 10
Remote VNI Count: 10
VRF Count: 3
MACIP EVI Path Count: 33
MACIP Global Path Count: 198
Inconsistent VNI VTEP Count: 0
Inconsistencies: -
Fragments: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
27.0.0.21:3 EVIs: 4
27.0.0.21:13 EVIs: 4
27.0.0.21:22 EVIs: 2
VTEPs:
27.0.0.22 flags: EA df_alg: preference df_pref: 32767
27.0.0.23 flags: EA df_alg: preference df_pref: 32767
root@torm-11:mgmt:~# vtysh -c "show bgp l2vpn evpn es-evi vni 1002 detail"
VNI: 1002 ESI: 03:44:38:39:ff:ff:01:00:00:01
Type: LR
ES fragment RD: 27.0.0.21:13 >>>>>>>>>>>>>>>>>>>>>>>>>
Inconsistencies: -
VTEPs: 27.0.0.22(EV),27.0.0.23(EV)
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
PS: The number of EVIs per-fragment has been set to 128 and may need further
tuning.
Ticket: #2632967
Signed-off-by: Anuradha Karuppiah <anuradhak@nvidia.com>
Diffstat (limited to 'bgpd/bgp_evpn_private.h')
| -rw-r--r-- | bgpd/bgp_evpn_private.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/bgpd/bgp_evpn_private.h b/bgpd/bgp_evpn_private.h index 0614dbaea4..fd30cc2db3 100644 --- a/bgpd/bgp_evpn_private.h +++ b/bgpd/bgp_evpn_private.h @@ -532,6 +532,7 @@ static inline void evpn_type1_prefix_global_copy(struct prefix_evpn *global_p, memcpy(global_p, vni_p, sizeof(*global_p)); global_p->prefix.ead_addr.ip.ipa_type = 0; global_p->prefix.ead_addr.ip.ipaddr_v4.s_addr = INADDR_ANY; + global_p->prefix.ead_addr.frag_id = 0; } /* EAD prefix in the global table doesn't include the VTEP-IP so |