X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvnet%2Fgre%2Finterface.c;h=5b165c858d3e3289145cb9db214748cedb7949d8;hb=fe7d4a2e31529eed5416b38b520fdc84687df03c;hp=013dde60af993b6a5e07fef16081df57ea3e7a1d;hpb=bca9290056b1ee206a05c13bbb46b1b40a8bd804;p=vpp.git

diff --git a/src/vnet/gre/interface.c b/src/vnet/gre/interface.c
index 013dde60af9..5b165c858d3 100644
--- a/src/vnet/gre/interface.c
+++ b/src/vnet/gre/interface.c
@@ -348,8 +348,12 @@ 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. */
-  vnet_sw_interface_set_mtu (vnm, sw_if_index, 9000);
+  hi->max_l3_packet_bytes[VLIB_RX] = hi->max_l3_packet_bytes[VLIB_TX] = 9000;
+
   /*
    * source the FIB entry for the tunnel's destination
    * and become a child thereof. The tunnel will then get poked