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FS#285 — FS#4369 — Lille<>Bruxelles 27/07/10

Attached to Project— Network
Incident
Whole Network
CLOSED
100%
Our fiber link Lille <> Brussels will be suspended on 27/07 due to the movement of the cable linked to roads construction's works. Time to be confirmed.



Date:  Thursday, 29 July 2010, 01:37AM
Reason for closing:  Done
Comment by OVH - Monday, 26 July 2010, 03:06AM

These tasks are going to disconnect 3 important links:
Roubaix/Amsterdam
Roubaix/Bruxelles
Roubaix/Francfurt

Roubaix/Amsterdam is going to be rerouted via Roubaix/London/Amsterdam
Roubaix/Francfurt is going to be rerouted via Roubaix/Paris/Francfurt
Roubaix/Bruxelles has not rescued. It will be down. peering that we have in place will switched automatically to london, amsterdam paris and francfurt.

It is really a test of our backbone which has not been designed for this kind of problems. We have grafted it this need while waiting to change the routers (in September).


Comment by OVH - Monday, 26 July 2010, 19:23PM

We will manually turn off the BGP ams and fra at 22:00.

Then the work will finish around 6am. They will be
put back up once it's up.



Comment by OVH - Monday, 26 July 2010, 22:37PM

We have deactivated all the MPLS on the entire backbone.

A problem on rbx-half, he has not taken the order to 100%
We have reactivated it and then deactivated it again.


Comment by OVH - Monday, 26 July 2010, 22:39PM

We will try to cut the BGP sessions in hand, to
avoid overload on vss.


Comment by OVH - Monday, 26 July 2010, 22:39PM

vss-2


Comment by OVH - Monday, 26 July 2010, 22:39PM

done
vss-1


Comment by OVH - Monday, 26 July 2010, 22:44PM

We cut all the concerned sessions on RBX1/2 vss1/2/3.
The routers have well reacted.


Comment by OVH - Monday, 26 July 2010, 22:53PM

The work is on the 27th in the evening. It is ... 26. Help.

Well, we'll re-put the sessions and see if it is well returned
into place.


Comment by OVH - Monday, 26 July 2010, 22:55PM

Done. No problem on the routers ... !

Obviously the work of Sunday morning brought
stability:
http://status.ovh.net/?do=details&id=330


Comment by OVH - Tuesday, 27 July 2010, 22:22PM

Work has begun. We left the network
stabilizing itself.


Comment by OVH - Tuesday, 27 July 2010, 23:24PM

All links are restored.


Comment by OVH - Thursday, 29 July 2010, 01:37AM

The violent disconnection caused some overcharges on vss but the routers returned back to normal without our intervention. Restarting did not cause any disconnection. We detected another problem thanks to this intervention.

All of this lead us to notice that vss should be moved and replaced by something else. Simply, Ralebol.