Upstream / Handoff UPS?

Otis L. Surratt, Jr. otis at ocosa.com
Thu Oct 31 06:00:38 UTC 2013


-----Original Message-----
From: Kenny Kant [mailto:akennykant at gmail.com] 
Sent: Thursday, October 31, 2013 12:35 AM
To: nanog at nanog.org
Subject: Upstream / Handoff UPS?

>We have tons of circuits with various providers.  Often times the
demarc / handoff switch from the provider is not running on battery
backup.
 >Sometimes if the demarc device is located in the same room as our
equipment we mitigate this and plug the device into our backup systems.

I've witnessed a data center ask the upstream to install gear inside
their data center because of the lack of UPS for demarcs.

>Am I wrong to think that the demarc from the provider is a sacred thing
that should only be touched by said provider.  Thus they should provide
their own battery system?  Is it normal for this equipment not to be
battery protected?  We are not dealing with >any crazy SLA's however I
think it would be standard build practice to put UPS's on your gear.
Even if its small handoff switch sitting right next to my switch.

You are not wrong IMO. Many upstreams/providers/carriers now days simply
drop a DC plant to maintain 8 hours (If I recall correctly) of run time.
Which is usually sufficient unless you've got an extended outage lasting
longer than 8 hours. If you have a UPS and generator backing I would
recommend you have them make the demarc inside your locations every
time. Most carriers could consider this extending the demarc, thus an
extra charge.




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