Action
Install the controller on Linux Ubuntu version 14.04 LTS 64-bit server.
Packets not received at the end point
Symptom
HTTP traffic is not received at the end point.
Cause
In some situations, a switch might not forward HTTP traffic.
Action
•
Check the switch functionality and compatibility with your setup. In some cases, the firmware
of the switch does not forward HTTP traffic if there is a copy for it.
•
Check the switch version and possible CPE fixes. In firmware 15.16, if there is an Openflow
flow-mod with a copy action for HTTP traffic, it will not forward the HTTP traffic. This issue
was fixed in a CPE branch for firmware 15.16.
Session expired message in the UI
Symptom
You see a message in the controller UI that your login session has expired.
Cause
It has been longer than the defined Keystone session timeout since you logged in so your session
has expired. The default Keystone login session timeout is 1 hour.
Action
Reload the page and log in again.
If you want to increase the Keystone session timeout value, do the following:
1.
Log on to the controller as sudo user.
2.
Open the
/etc/keystone/keystone.conf
file for editing.
3.
Locate the line:
#expiration=3600
.
4.
Modify that line by removing the comment (hash tag) and change the value to something
larger.
5.
Save the file and exit the editor.
6.
Restart the Keystone server using this command:
service keystone restart
7.
Logout from the UI and log back in and the session timeout is increased to the new value.
Error running the config_sdn.py script with date/time/NTP option
Symptom
You run the post install configuration script with the option to change the date and time or NTP
server (
python config_sdn.py –d
) and after entering the new date and time or NTP server
information, the script will try to access the file
/etc/net.conf
but the script fails and you see
a file permission denied error message.
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Troubleshooting