Just to close the loop on this, the issue got raised as https://github.com/coreos/flannel/issues/655
It's worth noting that this seems to be s390x specific - I'm not seeing any issue on amd64 On Tue, Mar 14, 2017 at 10:28 AM, Brandon Philips < [email protected]> wrote: > Can you file an issue? > > On Mon, Mar 13, 2017 at 2:05 AM Ravi S <[email protected]> wrote: > >> I am using flannel v0.7.0 >> The functional test case for udp backend is failing, failed to ping the >> flannel interface. >> *) functional test case >> >> === BACKEND: udp =============================================== >> >> { "Network": "10.10.0.0/16", "Backend": { "Type": "udp" } } >> >> flannel config written >> >> flannel-e2e-test-flannel1 >> >> db4ceff7515cf46adbfba2804ef53153e2cc8e1385bec870a4a32d86e73bd62a >> >> flannel-e2e-test-flannel2 >> >> e67e4f0825dd2916ddedef49ff713a53a3d138b89bad6e17ebef034a1e6f4705 >> >> flannels running >> >> PING 10.10.59.1 (10.10.59.1): 56 data bytes >> >> >> >> --- 10.10.59.1 ping statistics --- >> >> 5 packets transmitted, 0 packets received, 100% packet loss >> >> Test for backend=udp: exit=1 >> >> >> *)The network and route status in flannel-e2e-test-flannel1 container as >> follow: >> >> docker exec -it --privileged flannel-e2e-test-flannel1 /bin/sh >> >> / # ip address >> >> 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue qlen 1 >> >> link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 >> >> inet 127.0.0.1/8 scope host lo >> >> valid_lft forever preferred_lft forever >> >> inet6 ::1/128 scope host >> >> valid_lft forever preferred_lft forever >> >> 2: flannel0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1472 qdisc >> pfifo_fast qlen 500 >> >> link/[65534] >> >> inet 10.10.13.0/16 scope global flannel0 >> >> valid_lft forever preferred_lft forever >> >> 3: dummy0: <BROADCAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc noqueue qlen 1000 >> >> link/ether d2:e0:70:00:ab:e8 brd ff:ff:ff:ff:ff:ff >> >> inet 10.10.13.1/24 scope global dummy0 >> >> valid_lft forever preferred_lft forever >> >> inet6 fe80::d0e0:70ff:fe00:abe8/64 scope link >> >> valid_lft forever preferred_lft forever >> >> 3666: eth0@if3667: <BROADCAST,MULTICAST,UP,LOWER_UP,M-DOWN> mtu 1500 >> qdisc noqueue >> >> link/ether 02:42:ac:11:00:08 brd ff:ff:ff:ff:ff:ff >> >> inet 172.17.0.8/16 scope global eth0 >> >> valid_lft forever preferred_lft forever >> >> inet6 fe80::42:acff:fe11:8/64 scope link >> >> valid_lft forever preferred_lft forever >> >> / # ping -c 5 10.10.13.1 >> >> PING 10.10.13.1 (10.10.13.1): 56 data bytes >> >> 64 bytes from 10.10.13.1: seq=0 ttl=64 time=0.078 ms >> >> 64 bytes from 10.10.13.1: seq=1 ttl=64 time=0.115 ms >> >> 64 bytes from 10.10.13.1: seq=2 ttl=64 time=0.112 ms >> >> 64 bytes from 10.10.13.1: seq=3 ttl=64 time=0.106 ms >> >> 64 bytes from 10.10.13.1: seq=4 ttl=64 time=0.107 ms >> >> >> >> --- 10.10.13.1 ping statistics --- >> >> 5 packets transmitted, 5 packets received, 0% packet loss >> >> round-trip min/avg/max = 0.078/0.103/0.115 ms >> >> / # ping -c 5 10.10.13.0 >> >> PING 10.10.13.0 (10.10.13.0): 56 data bytes >> >> 64 bytes from 10.10.13.0: seq=0 ttl=64 time=0.070 ms >> >> 64 bytes from 10.10.13.0: seq=1 ttl=64 time=0.108 ms >> >> 64 bytes from 10.10.13.0: seq=2 ttl=64 time=0.110 ms >> >> 64 bytes from 10.10.13.0: seq=3 ttl=64 time=0.112 ms >> >> 64 bytes from 10.10.13.0: seq=4 ttl=64 time=0.113 ms >> >> >> >> --- 10.10.13.0 ping statistics --- >> >> 5 packets transmitted, 5 packets received, 0% packet loss >> >> round-trip min/avg/max = 0.070/0.102/0.113 ms >> >> / # ping -c 5 10.10.71.0 >> >> PING 10.10.71.0 (10.10.71.0): 56 data bytes >> >> >> >> --- 10.10.71.0 ping statistics --- >> >> 5 packets transmitted, 0 packets received, 100% packet loss >> >> / # ip route >> >> default via 172.17.0.1 dev eth0 >> >> 10.10.0.0/16 dev flannel0 src 10.10.13.0 >> >> 10.10.13.0/24 dev dummy0 src 10.10.13.1 >> >> 172.17.0.0/16 dev eth0 src 172.17.0.8 >> >> >> >> *) The network and route status in flannel-e2e-test-flannel2 container as >> follow: >> >> root# docker exec -it --privileged flannel-e2e-test-flannel2 /bin/sh >> >> / # ip address >> >> 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue qlen 1 >> >> link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 >> >> inet 127.0.0.1/8 scope host lo >> >> valid_lft forever preferred_lft forever >> >> inet6 ::1/128 scope host >> >> valid_lft forever preferred_lft forever >> >> 2: flannel0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1472 qdisc >> pfifo_fast qlen 500 >> >> link/[65534] >> >> inet 10.10.71.0/16 scope global flannel0 >> >> valid_lft forever preferred_lft forever >> >> 3668: eth0@if3669: <BROADCAST,MULTICAST,UP,LOWER_UP,M-DOWN> mtu 1500 >> qdisc noqueue >> >> link/ether 02:42:ac:11:00:09 brd ff:ff:ff:ff:ff:ff >> >> inet 172.17.0.9/16 scope global eth0 >> >> valid_lft forever preferred_lft forever >> >> inet6 fe80::42:acff:fe11:9/64 scope link >> >> valid_lft forever preferred_lft forever >> >> / # ip route >> >> default via 172.17.0.1 dev eth0 >> >> 10.10.0.0/16 dev flannel0 src 10.10.71.0 >> >> 172.17.0.0/16 dev eth0 src 172.17.0.9 >> >> / # ping -c 5 10.10.71.0 >> >> PING 10.10.71.0 (10.10.71.0): 56 data bytes >> >> 64 bytes from 10.10.71.0: seq=0 ttl=64 time=0.072 ms >> >> 64 bytes from 10.10.71.0: seq=1 ttl=64 time=0.101 ms >> >> 64 bytes from 10.10.71.0: seq=2 ttl=64 time=0.098 ms >> >> 64 bytes from 10.10.71.0: seq=3 ttl=64 time=0.101 ms >> >> 64 bytes from 10.10.71.0: seq=4 ttl=64 time=0.111 ms >> >> >> >> --- 10.10.71.0 ping statistics --- >> >> 5 packets transmitted, 5 packets received, 0% packet loss >> >> round-trip min/avg/max = 0.072/0.096/0.111 ms >> >> / # ping -c 5 10.10.13.1 >> >> PING 10.10.13.1 (10.10.13.1): 56 data bytes >> >> >> >> --- 10.10.13.1 ping statistics --- >> >> 5 packets transmitted, 0 packets received, 100% packet loss >> >> / # ping -c 5 10.10.13.0 >> >> PING 10.10.13.0 (10.10.13.0): 56 data bytes >> >> >> >> --- 10.10.13.0 ping statistics --- >> >> 5 packets transmitted, 0 packets received, 100% packet loss >> >> >> >> Regards, >> >> Ravi_S >> >
