cnat: allow max_u16 translation backends

Type: fix

Allow for 65536 backends for a translation.
- use u32 instead of u8
- filter out back_walk with more than
FIB_PATH_LIST_POPULAR backends
- we're still limited by u16 lb_n_buckets
in src/vnet/dpo/load_balance.h

Change-Id: Ib37b958e59b25ef5ef9f92b82008d626860faddd
Signed-off-by: Nathan Skrzypczak <nathan.skrzypczak@gmail.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/plugins/cnat/cnat.api b/src/plugins/cnat/cnat.api
index a9507c90b4d..7bf6be8b349 100644
--- a/src/plugins/cnat/cnat.api
+++ b/src/plugins/cnat/cnat.api
@@ -53,7 +53,7 @@ typedef cnat_translation
   vl_api_ip_proto_t ip_proto;
   u8 is_real_ip;
   u8 flags;
-  u8 n_paths;
+  u32 n_paths;
   vl_api_cnat_endpoint_tuple_t paths[n_paths];
 };