zebra: VNI and VTEP handling

Implement fundamental handling for VNIs and VTEPs:
- Handle EVPN enable/disable by client (advertise-all-vni)
- Create/update/delete VNIs based on VxLAN interface events and inform
client
- Handle VTEP add/delete from client and install into kernel
- New debug command for VxLAN/EVPN
- kernel interface (Linux/netlink only)

Signed-off-by: Vivek Venkatraman <vivek@cumulusnetworks.com>
Reviewed-by:   Donald Sharp <sharpd@cumulusnetworks.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/zebra/zserv.h b/zebra/zserv.h
index dcc98d83f..c8f006d44 100644
--- a/zebra/zserv.h
+++ b/zebra/zserv.h
@@ -105,6 +105,8 @@ struct zserv
   u_int32_t vrfdel_cnt;
   u_int32_t if_vrfchg_cnt;
   u_int32_t bfd_client_reg_cnt;
+  u_int32_t vniadd_cnt;
+  u_int32_t vnidel_cnt;
 
   time_t connect_time;
   time_t last_read_time;