diff options
| author |   Neale Ranns <neale@graphiant.com> | 2020-12-21 08:29:34 +0000 |
|---|---|---|
| committer |   Ole Tr�an <otroan@employees.org> | 2021-02-15 17:27:48 +0000 |
| commit | 8f5fef2c78b95de1a636ce27111722b71702212a (patch) | |
| tree | a0ebd0189969ccae1f0bdd7c1a9c18dd7a066f2e /src/vnet/gre/gre.c | |
| parent | 54be0cc044f445853fae7b8995c477605250af16 (diff) | |
ip: Path MTU
Type: feature
Support setting the MTU for a peer on an interface. The minimum value of
the path and interface MTU is used at forwarding time.
the path MTU is specified for a given peer, by address and table-ID.
In the forwarding plane the MTU is enfored either:
1 - if the peer is attached, then the MTU is set on the peer's
adjacency
2 - if the peer is not attached, it is remote, then a DPO is added to
the peer's FIB entry to perform the necessary fragmentation.
Signed-off-by: Neale Ranns <neale@graphiant.com>
Change-Id: I8b9ea6a07868b50e97e2561f18d9335407dea7ae
Diffstat (limited to 'src/vnet/gre/gre.c')
| -rw-r--r-- | src/vnet/gre/gre.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/src/vnet/gre/gre.c b/src/vnet/gre/gre.c index 0669c676bf5..fcdf9c0d6bc 100644 --- a/src/vnet/gre/gre.c +++ b/src/vnet/gre/gre.c @@ -495,8 +495,13 @@ mgre_update_adj (vnet_main_t * vnm, u32 sw_if_index, adj_index_t ai) adj->ia_nh_proto, &adj->sub_type.nbr.next_hop); if (NULL == ne) - // no NHRP entry to provide the next-hop - return; + { + // no TEIB entry to provide the next-hop + adj_nbr_midchain_update_rewrite ( + ai, gre_get_fixup (t->tunnel_dst.fp_proto, adj_get_link_type (ai)), + uword_to_pointer (t->flags, void *), ADJ_FLAG_NONE, NULL); + return; + } mgre_walk_ctx_t ctx = { .t = t, |