nanog mailing list archives

RE: CenturyLink RCA?


From: "Naslund, Steve" <SNaslund () medline com>
Date: Mon, 31 Dec 2018 15:31:51 +0000

They shouldn’t need OOB to operate existing lambdas just to configure new ones.  One possibility is that the management 
interface also handles master timing which would be a really bad idea but possible (should be redundant and it should 
be able to free run for a reasonable amount of time).  The main issue exposed is that obviously the management 
interface is critical and is not redundant enough.  That is if we believe the OOB explanation in the first place (which 
by the way is obviously not OOB since it wiped out the in band network when it failed).

Steven Naslund
Chicago IL


This seems entirely plausible given that DWDM amplifiers and lasers being a complex analog system, they need OOB to 
align.
--
Eric



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