diff options
| author |   Ole Troan <ot@cisco.com> | 2018-06-07 10:17:57 +0200 |
|---|---|---|
| committer |   Damjan Marion <dmarion@me.com> | 2018-06-11 10:25:59 +0000 |
| commit | d723161e038d00e59766aa67a6a0dcc350227e4b (patch) | |
| tree | 24f5a1d87ebdc0012f28d42aa80a9f5d760073bf /src/vnet/ipsec-gre | |
| parent | f4fd0d4217ab6c41fe6b093871bd40ac130e6486 (diff) | |
MTU: Software interface / Per-protocol MTU support
This patch separates setting of hardware interfaec and software
interface MTU. Software MTU is L2 payload MTU (i.e. not including L2
header). Per-protocol MTU for IPv4, IPv6 and MPLS can also be set.
Currently only IP4, IP6 are enabled in adjacency / rewrite code.
Documentation in src/vnet/MTU.md
Change-Id: Iee2fd6f0bbc8210748dd8e073ab9fab87d323690
Signed-off-by: Ole Troan <ot@cisco.com>
Diffstat (limited to 'src/vnet/ipsec-gre')
| -rw-r--r-- | src/vnet/ipsec-gre/interface.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/src/vnet/ipsec-gre/interface.c b/src/vnet/ipsec-gre/interface.c index 0772ce73df2..8903df01c04 100644 --- a/src/vnet/ipsec-gre/interface.c +++ b/src/vnet/ipsec-gre/interface.c @@ -174,12 +174,10 @@ vnet_ipsec_gre_add_del_tunnel (vnet_ipsec_gre_add_del_tunnel_args_t * a, hi->min_packet_bytes = 64 + sizeof (gre_header_t) + sizeof (ip4_header_t) + sizeof (esp_header_t) + sizeof (esp_footer_t); - hi->per_packet_overhead_bytes = - /* preamble */ 8 + /* inter frame gap */ 12; /* Standard default gre MTU. */ - hi->max_l3_packet_bytes[VLIB_RX] = hi->max_l3_packet_bytes[VLIB_TX] = - 9000; + /* TODO: Should take tunnel overhead into consideration */ + vnet_sw_interface_set_mtu (vnm, sw_if_index, 9000); clib_memcpy (&t->tunnel_src, &a->src, sizeof (t->tunnel_src)); clib_memcpy (&t->tunnel_dst, &a->dst, sizeof (t->tunnel_dst)); |