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FS#3105 — FS#7058 — Firewall card

Attached to Project— VoIP
Modernization
Backend / Core
CLOSED
100%
We will install new firewall cards in front of the telephony infrastructure.
These cards are intended to protect infrastructure and allow future developments.

The impact will be about ten minutes.

The intervention is scheduled for Thursday 26/07 at 1:00


Date:  Wednesday, 08 August 2012, 05:47AM
Reason for closing:  Done
Comment by OVH - Thursday, 26 July 2012, 01:52AM

We are checking the firewall cards' configuration.


Comment by OVH - Thursday, 26 July 2012, 01:53AM

We started the operation.
We began by moving the IPs.


Comment by OVH - Thursday, 26 July 2012, 02:14AM

The configuration was successful. MGCP and SIP phones are being registred.


Comment by OVH - Thursday, 26 July 2012, 02:16AM

The call routing is very long. the firewall card is unable to collect the traffic.
We will backtrack.


Comment by OVH - Thursday, 26 July 2012, 02:17AM

# sh cpu usage
CPU utilization for 5 seconds = 97.8%; 1 minute: 97.8%; 5 minutes: 97.7%


Comment by OVH - Thursday, 26 July 2012, 02:19AM

The backtracking is OK. The configuration is identical to that before the operation.

We are checking the MGCP phones.


Comment by OVH - Thursday, 26 July 2012, 03:14AM

Last telephones MGCP are properly reconnecting.


Comment by OVH - Thursday, 26 July 2012, 03:16AM

Network team has found an error in the setting which could explain this saturation.
We are retrying to produce a firewall card.


Comment by OVH - Thursday, 26 July 2012, 07:39AM

The firewall card held on. however, we found out a cirpack bug which prevents from accepting more than 32 SIP connections at the lever of the proxy on 1 singel couple ip/port.

Analyses are in progress at the level of the manufacturer to understand and identify the bug.

Rewind. We stop for tonight.


Comment by OVH - Thursday, 26 July 2012, 07:40AM

The rewind causes some difficulties.
We are endeavouring to restablish the service as quick as possible.


Comment by OVH - Thursday, 26 July 2012, 07:41AM

The service is operational again.
We are checking that the last phones re-record themselves correctly.


Comment by OVH - Wednesday, 08 August 2012, 00:19AM

The operation is planned for Wednesday, August 8th from 0:30.

We will install a new configuration in the firewall cards.
We are trying to have the easiest and the most stable configuration as possible.


Comment by OVH - Wednesday, 08 August 2012, 00:42AM

We are verifying the setting.


Comment by OVH - Wednesday, 08 August 2012, 01:52AM

Operation started, we began switching the IPs.


Comment by OVH - Wednesday, 08 August 2012, 02:00AM

The firewall card is working properly.

SIP phones are operational. MGCP phones need a little longer to return.


Comment by OVH - Wednesday, 08 August 2012, 05:45AM

All tests have been successful thereafter switching.

We will continue monitoring the equipments.


Comment by OVH - Wednesday, 08 August 2012, 05:46AM

The clusters' setting have been standardized.

The service is running properly.