flannel for backend udp failing

24 views
Skip to first unread message

Ravi S

unread,
Mar 13, 2017, 5:05:46 AM3/13/17
to CoreOS Dev
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

Brandon Philips

unread,
Mar 14, 2017, 1:28:19 PM3/14/17
to CoreOS Dev
Can you file an issue?

Tom Denham

unread,
Apr 12, 2017, 5:06:26 PM4/12/17
to coreo...@googlegroups.com
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


Reply all
Reply to author
Forward
0 new messages