From 70083ee74c3141bbefb185525315f1b34497dcaa Mon Sep 17 00:00:00 2001 From: Ole Troan Date: Tue, 27 Mar 2018 14:48:39 +0200 Subject: MTU: Setting of MTU on software interface (instead of hardware interface) Change-Id: I98bd454a761a1032738a21edeb0fe847e801f901 Signed-off-by: Ole Troan --- src/vnet/ipip/ipip.c | 7 +++---- src/vnet/ipip/sixrd.c | 3 ++- 2 files changed, 5 insertions(+), 5 deletions(-) (limited to 'src/vnet/ipip') diff --git a/src/vnet/ipip/ipip.c b/src/vnet/ipip/ipip.c index 82c961cdddd..9b808d4ac0f 100644 --- a/src/vnet/ipip/ipip.c +++ b/src/vnet/ipip/ipip.c @@ -476,17 +476,16 @@ ipip_add_tunnel (ipip_transport_t transport, { vec_validate (im4->fib_index_by_sw_if_index, sw_if_index); hi->min_packet_bytes = 64 + sizeof (ip4_header_t); + hi->max_packet_bytes = 65536 - sizeof (ip4_header_t); } else { vec_validate (im6->fib_index_by_sw_if_index, sw_if_index); hi->min_packet_bytes = 64 + sizeof (ip6_header_t); + hi->max_packet_bytes = 65536 - sizeof (ip6_header_t); } - hi->per_packet_overhead_bytes = /* preamble */ 8 + /* inter frame gap */ 12; - - /* Standard default ipip 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, hi->max_packet_bytes); t->tunnel_src = *src; t->tunnel_dst = *dst; diff --git a/src/vnet/ipip/sixrd.c b/src/vnet/ipip/sixrd.c index cfdd0f87e3a..998025782fb 100644 --- a/src/vnet/ipip/sixrd.c +++ b/src/vnet/ipip/sixrd.c @@ -337,7 +337,8 @@ sixrd_add_tunnel (ip6_address_t * ip6_prefix, u8 ip6_prefix_len, t->dev_instance = t_idx; t->user_instance = t_idx; - hi->max_l3_packet_bytes[VLIB_RX] = hi->max_l3_packet_bytes[VLIB_TX] = 1480; + /* Set default MTU to 1480 */ + vnet_sw_interface_set_mtu (vnet_get_main (), t->sw_if_index, 1480); ipip_tunnel_db_add (t, &key); -- cgit 1.2.3-korg