We have received the following communication regarding the SANREN link. During this time access to Grid resources may be degraded.
We have received further communications regarding the fault that we are currently experiencing.
The fault has, as stated, been confirmed to be on the TE-NORTH segment of the cable between Egypt and France, and based on what SEACOM has just sent us, this is confirmed as a problem on the undersea portion of the cable that will require physical work.
The expected time of repair is 5 to 10 days, as the boats require permits to sale which will take up to 5 days, and then there is an approximate week time frame after the granting of permits to actually sail, get to the problem point and repair.
As a result of this, during this period we will continue to utilize the DR bandwidth solution. TENET has contracted for 2gigabit of DR bandwidth, and while we acknowledge that this is probably going to be slightly saturated during this period, we believe that it should be enough capacity to keep the network running with only a small degradation of service.
In order to mitigate congestion on the network during this period, TENET has changed the bandwidth limiting device to acknowledge that it only has 2 gigabit of bandwidth available. This means that the burst ratios we apply on campuses will only apply if the bandwidth is available within the 2gigabit as a result:
If a site has 100mbit bandwidth limit, with a 10% burst level (as we apply in default situations):
The bandwidth controller will attempt to give the site their 100mbit per second as a priority. If the link is running below 2gig (I.E late at night) the site will receive their 10% burst and be able to run at 110mbit. If the link is running heavily utilized, the 10% burst will not be available.
I have included SEACOM’s latest communication at the bottom of the email.
TENET – Chief Technology Officer
SEACOM Communication:Dear Customer, As previously advised SEACOM's Mediterranean partner network is experiencing a service affecting outage between Abu Talat and Marseilles. This is currently impacting all of your services to Europe. We have now received an indication of the ETR for the fault: permitting is expected to be completed within one week and the repairs are then expected to take 5 days. The repair vessel has been notified of the callout and mobilization will occur once permits are received. SEACOM is continuing to work on additional restoration routes. As options become available your account manager will be in contact to discuss. Should you have specific requirements or wish to discuss options please contact your account manager. We will continue to keep you informed on progress of the repair.