[VTN-10] Host information not shown in OpenDaylight GUI occasionally Created: 17/Apr/14  Updated: 03/May/18  Resolved: 17/Apr/14

Status: Resolved
Project: vtn
Component/s: VTN Manager
Affects Version/s: unspecified
Fix Version/s: None

Type: Bug
Reporter: Hideyuki Tai Assignee: Unassigned
Resolution: Done Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified
Environment:

Operating System: All
Platform: All

External issue ID: 763

 Description   

When VTN Manger detects a new MAC address, it registers the MAC address on hosttracker, and OpenDaylight GUI shows this host information.

However I observed that I don't see some host information in OpenDaylight GUI occasionally.

 Comments   
Comment by Hideyuki Tai [ 17/Apr/14 ]

The issue has been already fixed.
The patch for this issue was merged on March 20, 2014.
https://git.opendaylight.org/gerrit/#/c/5690/

Without this patch, VTN Manager tried to send a ARP request only once to know IP address corresponding to a detected MAC address.
But VTN Manager occasionally did not send an ARP request for some reasons, so it did not receive an ARP reply, could not know the IP address, and could not register host information for it.
For example, I observed that OVS sent PACKET_IN from a port which is "link down".
In such cas, VTN Manger did not send an ARP request to the port.

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