Re: DSL - slow first hop - maintenance mode?

[Austin <amckinle () andrew cmu edu>]

Gary,
"Maintenance mode" means that they probably lowered the signalling rate of 
your modem at some point for troubleshooting. When he says "saving packets" 
he probably means "lots of internal buffering" because your serialization 
delays go up as the clock rate on your line goes down.

Check out <http://isp-lists.isp-planet.com/isp-dsl/> if you want someone to 
get more technical.

Austin

--On Tuesday, January 24, 2006 7:23 PM -0800 Gary Funck <gary () intrepid com> 
wrote:

> A bit off-topic, but after a few vain Google searches, I thought I might
> run my question by this group of net wizards ...
>
> I've got DSL service at home via SBC, or whatever it is called now.  Had
> some problems with the telephone line out front do the combination of
> wet weather and squirrels who were busy eating away at the wiring over the
> course of the summer.  Got that fixed, and everything seemed okay, except
> some time later I noticed that the first hop (from the DSL modem at my
> house to the first entry point into the CO) was slow -- as in nominally
> 55 msec., rather than nominal 5 msec.  Everything else was okay:
> throughput ok,
> error rates low, and so on.  It took me a couple of calls into the
> Bangalore support office to get my call escalated to the point that I
> counld get a tech. on my side of the Ocean to look at the problem.  Once
> he did, the fix was quick and apparently simple.  He said that my DSL
> line had been put into "maintenance mode", which as I understand the
> tech. to say was "saving" packats, just in case they needed to be
> retransmitted.  Does that make any sense at all?  Can you provide more
> detail on what was likely going on?
>
>
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