From d723161e038d00e59766aa67a6a0dcc350227e4b Mon Sep 17 00:00:00 2001 From: Ole Troan Date: Thu, 7 Jun 2018 10:17:57 +0200 Subject: 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 --- src/vnet/gre/interface.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) (limited to 'src/vnet/gre/interface.c') diff --git a/src/vnet/gre/interface.c b/src/vnet/gre/interface.c index 5b165c858d3..0822cd74b52 100644 --- a/src/vnet/gre/interface.c +++ b/src/vnet/gre/interface.c @@ -348,11 +348,8 @@ vnet_gre_tunnel_add (vnet_gre_add_del_tunnel_args_t * a, 64 + sizeof (gre_header_t) + sizeof (ip6_header_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; + vnet_sw_interface_set_mtu (vnm, sw_if_index, 9000); /* * source the FIB entry for the tunnel's destination -- cgit 1.2.3-korg