diff options
| author | Anuradha Karuppiah <anuradhak@cumulusnetworks.com> | 2020-08-15 06:41:31 -0700 |
|---|---|---|
| committer | Anuradha Karuppiah <anuradhak@nvidia.com> | 2021-03-25 17:09:53 -0700 |
| commit | 36dd45746501ec494ce4d9854e57044c073c18d3 (patch) | |
| tree | d089bbf4eb6f4ec325349c45f6c1bfcb1b069772 /lib/lib_errors.c | |
| parent | 70524092b22ce7b0aa0c23612f7e5a12dbf243bc (diff) | |
bgpd: allow routes to be imported if the ES/ES-VRF is not present
In a sym-IRB setup the remote ES may not be installed if the tenant
VRF is not present locally. To allow that case while retaining the
fast-failover benefits for the case where the tenant VRF is locally
present we use the following approach -
1. If ES is present in the tenant VRF we use the L3NHG for installing
the MAC-IP based tenant route. This allows for efficient failover via
L3NHG updates.
2. If the ES is not present locally in the corresponding tenant VRF we
fall back to a non-NHG multi-path based routing approach. In this
case individual routes are updated when the ES links flap.
PS: #1 can be turned off entirely by disabling use-l3-nhg in BGP.
Ticket: CM-30935
Signed-off-by: Anuradha Karuppiah <anuradhak@cumulusnetworks.com>
Diffstat (limited to 'lib/lib_errors.c')
0 files changed, 0 insertions, 0 deletions