diff options
| author |   Neale Ranns <nranns@cisco.com> | 2017-04-05 08:11:14 -0700 |
|---|---|---|
| committer |   Damjan Marion <dmarion.lists@gmail.com> | 2017-04-06 15:18:44 +0000 |
| commit | 88fc83eb716bf07f4634de6de5b569f795a56418 (patch) | |
| tree | 4c8037b62cb6a57209aef4e28ae273d0ba4e40e7 /src/vnet/bfd/bfd_udp.h | |
| parent | 5ee51f8ed616f14f3b32ae8857d383fefa02d861 (diff) | |
BFD-FIB interactions
- single-hop BFD: attach a delegate to the appropriate adjacency
- multi-hop BFD [not supported yet]: attach a delegate to the FIB entry.
adjacency/fib_entry state tracks the BFD session state. when the state is down the object does not contribute forwarding hence and hence dependent objects will not use it.
For example, if a route is ECMP via two adjacencies and one of them is BFD down, then only the other is used to forward (i.e. we don't drop half the traffic).
Change-Id: I0ef53e20e73b067001a132cd0a3045408811a822
Signed-off-by: Neale Ranns <nranns@cisco.com>
Diffstat (limited to 'src/vnet/bfd/bfd_udp.h')
| -rw-r--r-- | src/vnet/bfd/bfd_udp.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/src/vnet/bfd/bfd_udp.h b/src/vnet/bfd/bfd_udp.h index a4adbadf861..87868104f98 100644 --- a/src/vnet/bfd/bfd_udp.h +++ b/src/vnet/bfd/bfd_udp.h @@ -27,8 +27,12 @@ /* *INDENT-OFF* */ /** identifier of BFD session based on UDP transport only */ typedef CLIB_PACKED (struct { - /** interface to which the session is tied */ - u32 sw_if_index; + union { + /** interface to which the session is tied - single-hop */ + u32 sw_if_index; + /** the FIB index the peer is in - multi-hop*/ + u32 fib_index; + }; /** local address */ ip46_address_t local_addr; /** peer address */ |