[EVPN VXLAN Ubuntu Icehouse Build 8 ] Ping packet of size 5000 is getting dropped by vrouter

[chhandak]

While pinging from contrail vm to BMS over VXLAN encapsulation normal ping goes through fine. While trying the same with ping packet size of 5000, it is getting dropped in vrouter.

Dropstats counter is increasing with "Nowhere to go "

root@nodec46:~# tcpdump -ni tap1cf6f1b8-9d
tcpdump: WARNING: tap1cf6f1b8-9d: no IPv4 address assigned
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on tap1cf6f1b8-9d, link-type EN10MB (Ethernet), capture size 65535 bytes
04:55:52.097796 IP 1.1.1.3 > 1.1.1.249: ICMP echo request, id 3227, seq 8099, length 5008>>> packet size of 5000
04:55:53.105824 IP 1.1.1.3 > 1.1.1.249: ICMP echo request, id 3227, seq 8100, length 5008
04:55:54.113857 IP 1.1.1.3 > 1.1.1.249: ICMP echo request, id 3227, seq 8101, length 5008
04:55:55.121866 IP 1.1.1.3 > 1.1.1.249: ICMP echo request, id 3227, seq 8102, length 5008
^C
4 packets captured
7 packets received by filter
0 packets dropped by kernel
root@nodec46:~#
root@nodec46:~#
root@nodec46:~# dropstats | grep "Nowhere to go"
Nowhere to go 9380
root@nodec46:~# dropstats | grep "Nowhere to go"
Nowhere to go 9382
root@nodec46:~#

ping command used
------------------------------
ping -s 5000 1.1.1.249

root@nodec46:~# vxlan -b
VXLAN Table

 VNID NextHop
----------------
 2222 14
root@nodec46:~#
root@nodec46:~#

root@nodec46:~# nh --get 14
Id:014 Type:Vrf_Translate Fmly: AF_INET Flags:Valid, Rid:0 Ref_cnt:2
        Vrf:1

root@nodec46:~# rt --dump 1 family bridge | grep 1.1.1.249
1.1.1.249/32 24 T - 23

[ajeet vijayvergiya (ajeet17181)]

Could you please provide topology and steps to reproduce this bug.
I would like to work on it and fix