networking-cisco

  1. Bug #1414060
  2. Comment #0

Comment 0 for bug 1414060

Revision history for this message
Richard Winters (riwinter) wrote : Communication lost to CSR after network create

OpenStack Version: Kilo

$ nova-manage version
2015.1

$ neutron --version
2.3.10

Communication is lost to the CSR for a short period of time after creating a network causing errors in the log when pings fail.

1. Why is communication lost for about 25 seconds after creating the network.
2. If not service impacting can we get rid of the error log

Steps to Repro:
  1. From the Controller node setup a continuous ping to the CSR management interface
  2. Create a network.
  3. Immediately attach the network to the router (CSR)
  4. Check the log for errors
  5. Check the ping stats

2015-01-21 10:48:10.029 DEBUG neutron.plugins.cisco.cfg_agent.service_helpers.routing_svc_helper [-] Routing service processing started from (pid=13719) process_service /opt/stack/neutron/neutron/plugins/cisco/cfg_agent/service_helpers/routing_svc_helper.py:162
2015-01-21 10:48:10.029 DEBUG neutron.plugins.cisco.cfg_agent.service_helpers.routing_svc_helper [-] Updated routers:[u'56f2cfbc-61c6-45dc-94d5-0cbb08b05053'] from (pid=13719) process_service /opt/stack/neutron/neutron/plugins/cisco/cfg_agent/service_helpers/routing_svc_helper.py:179
2015-01-21 10:48:10.248 DEBUG neutron.agent.linux.utils [-] Running command: ['ping', '-c', '5', '-W', '1', '-i', '0.2', '10.0.100.10'] from (pid=13719) create_process /opt/stack/neutron/neutron/agent/linux/utils.py:46
2015-01-21 10:48:12.096 ERROR neutron.agent.linux.utils [-]
Command: ['ping', '-c', '5', '-W', '1', '-i', '0.2', '10.0.100.10']
Exit code: 1
Stdout: 'PING 10.0.100.10 (10.0.100.10) 56(84) bytes of data.\n\n--- 10.0.100.10 ping statistics ---\n5 packets transmitted, 0 received, 100% packet loss, time 832ms\n\n'
Stderr: ''
2015-01-21 10:48:12.097 WARNING neutron.plugins.cisco.cfg_agent.device_status [-] Cannot ping ip address: 10.0.100.10

localadmin@qa1:~/devstack$ ping 10.0.100.10
PING 10.0.100.10 (10.0.100.10) 56(84) bytes of data.
64 bytes from 10.0.100.10: icmp_seq=

1 ttl=255 time=1.06 ms
64 bytes from 10.0.100.10: icmp_seq=2 ttl=255 time=0.927 ms
64 bytes from 10.0.100.10: icmp_seq=3 ttl=255 time=1.00 ms
64 bytes from 10.0.100.10: icmp_seq=4 ttl=255 time=0.906 ms
64 bytes from 10.0.100.10: icmp_seq=5 ttl=255 time=1.03 ms
64 bytes from 10.0.100.10: icmp_seq=6 ttl=255 time=1.04 ms
64 bytes from 10.0.100.10: icmp_seq=7 ttl=255 time=1.18 ms
64 bytes from 10.0.100.10: icmp_seq=8 ttl=255 time=1.08 ms
64 bytes from 10.0.100.10: icmp_seq=9 ttl=255 time=1.37 ms
64 bytes from 10.0.100.10: icmp_seq=10 ttl=255 time=1.19 ms
64 bytes from 10.0.100.10: icmp_seq=11 ttl=255 time=0.993 ms
64 bytes from 10.0.100.10: icmp_seq=12 ttl=255 time=1.06 ms
64 bytes from 10.0.100.10: icmp_seq=13 ttl=255 time=1.12 ms
64 bytes from 10.0.100.10: icmp_seq=14 ttl=255 time=0.989 ms
64 bytes from 10.0.100.10: icmp_seq=15 ttl=255 time=0.951 ms
64 bytes from 10.0.100.10: icmp_seq=16 ttl=255 time=0.749 ms
64 bytes from 10.0.100.10: icmp_seq=17 ttl=255 time=0.944 ms
64 bytes from 10.0.100.10: icmp_seq=18 ttl=255 time=1.01 ms
64 bytes from 10.0.100.10: icmp_seq=19 ttl=255 time=1.15 ms
64 bytes from 10.0.100.10: icmp_seq=20 ttl=255 time=1.04 ms
64 bytes from 10.0.100.10: icmp_seq=21 ttl=255 time=1.04 ms
64 bytes from 10.0.100.10: icmp_seq=22 ttl=255 time=1.05 ms
64 bytes from 10.0.100.10: icmp_seq=23 ttl=255 time=0.920 ms
64 bytes from 10.0.100.10: icmp_seq=24 ttl=255 time=0.862 ms
64 bytes from 10.0.100.10: icmp_seq=25 ttl=255 time=0.998 ms
64 bytes from 10.0.100.10: icmp_seq=26 ttl=255 time=0.932 ms
64 bytes from 10.0.100.10: icmp_seq=27 ttl=255 time=0.926 ms
64 bytes from 10.0.100.10: icmp_seq=28 ttl=255 time=1.16 ms
64 bytes from 10.0.100.10: icmp_seq=29 ttl=255 time=1.03 ms
64 bytes from 10.0.100.10: icmp_seq=30 ttl=255 time=3.64 ms

64 bytes from 10.0.100.10: icmp_seq=56 ttl=255 time=4.22 ms
64 bytes from 10.0.100.10: icmp_seq=57 ttl=255 time=1.03 ms
64 bytes from 10.0.100.10: icmp_seq=58 ttl=255 time=1.34 ms
64 bytes from 10.0.100.10: icmp_seq=59 ttl=255 time=0.797 ms
^C
--- 10.0.100.10 ping statistics ---
59 packets transmitted, 34 received, 42% packet loss, time 58085ms
rtt min/avg/max/mdev = 0.749/1.200/4.229/0.701 ms
localadmin@qa1:~/devstack$