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FS#14316 — gra1-29ab-n56

Attached to Project— Network
Incident
GRA-1
CLOSED
100%
Hello,

We are currently experiencing a problem with this pair of N56.
There is a huge loss on servers.
We investigate the problem.
Date:  Sunday, 08 January 2017, 18:28PM
Reason for closing:  Done
Additional comments about closing:  Done
Comment by OVH - Sunday, 08 January 2017, 17:55PM

We migrated hsrp on the standby router => no upgrade.

We have shutdown the gra-29a / b uplinks to the gra1-3b-a72 concentrator (linke to the router gra1-3b-a9) => there is no more breakdown in the monitoring system.

However GScan no longer sees the same count of ip reachable before and after. We investigate.


Comment by OVH - Sunday, 08 January 2017, 18:07PM

We shut the BVIs gra1-3b-a9 and up the uplink to 3b => no loss.
The router appears to be the cause of the loss.

We go up the BVI and troubleshoot router side.


Comment by OVH - Sunday, 08 January 2017, 18:27PM

The 4 VIs are up and no problems found. The first impact does not happen again.
We will review the traces in more detail.