negotiation).I really suspect that either a) GX has some semi-weird
configuration where the SONET ring switching from the normal to the
protect path and back causes BGP to reset on the border router I'm
attached to or b) There is a separate issue which is causing BGP to
flap. Or of course
* [EMAIL PROTECTED] (Randy Epstein) [Wed 26 Jul 2006, 07:44 CEST]:
Recently my BGP session has started flapping on the GX circuit... It
looks something like this:
Jul 21 21:33:32.703 UTC: %BGP-5-ADJCHANGE: neighbor 67.17.168.73 Up
There are no other log entries during the periods when this
is already at a higher value- but the lower value
wins during negotiation).I really suspect that either a) GX has
some semi-weird configuration where the SONET ring switching from
the normal to the protect path and back causes BGP to reset on the
border router I'm attached to or b
You should be able to tell from (cisco speak)
show controller pos a/b
The counters should be increasing if there are any issues with the line
or the path
Make sure both ends sync from the line (as it's a syncronous link).
A path switch event with won't impact BGP, if it did the
link.
GX claims (although I'm not sure they really know) that these are caused
by SONET ring switches. I can believe this, since I haven't seen any
real circuit flaps, and my understanding is that a SONET switch should
generally be fast enough that you normally won't see the transition
other
Forrest:
snip
Recently my BGP session has started flapping on the GX circuit... It
looks something like this:
Jul 21 21:33:32.703 UTC: %BGP-5-ADJCHANGE: neighbor 67.17.168.73 Up
There are no other log entries during the periods when this occur.
Unfortunately this causes enough prefix flaps
Hello,
We are looking for a OC3 - 3xDS3 MUX. (If it can grow up to
a OC12 -
12xDS3 thats a plus)
Sonet side will be 1+1 protected
I have looked at the following equipment is there any other
sonet muxes that
i should look at?
Adtran Opti-3
Adtran OPTI-6100
Cisco ONS 15310
Hello,
We are looking for a OC3 - 3xDS3 MUX. (If it can grow up to a OC12 -
12xDS3 thats a plus)
Sonet side will be 1+1 protected
I have looked at the following equipment is there any other sonet muxes that
i should look at?
Adtran Opti-3
Adtran OPTI-6100
Cisco ONS 15310, 15327
Fujitsu
Sundberg
Sent: Thursday, October 13, 2005 1:13 PM
To: nanog@merit.edu
Subject: SONET MUX
Hello,
We are looking for a OC3 - 3xDS3 MUX. (If it can grow up to a OC12 -
12xDS3 thats a plus)
Sonet side will be 1+1 protected
I have looked at the following equipment is there any other sonet muxes
that i
I am looking for feedback on Huawei's Ethernet over Sonet gear,
specifically its ability to do multi-point to multi-point between
locations, 802.1Q and RSTP.
regards,
fletcher
--
Fletcher Kittredge
Great Works Internet
8 Pomerleau St.
Biddeford, ME 04005-9457
--- [EMAIL PROTECTED] wrote:
(Anybody here *NOT* seen cases where the 2 fibers
leave the building on opposite
sides, go down different streets - and rejoin 2
miles down the way because
there's only one convenient bridge/tunnel/etc over
the river, or similar?)
confirming anecdote:
that had
some interesting results - sometimes being a flat, waterless, boring place is a
good thing.
- Original Message -
From: David Barak [EMAIL PROTECTED]
Date: Thursday, April 14, 2005 4:50 pm
Subject: SONET
--- [EMAIL PROTECTED] wrote:
(Anybody here *NOT* seen cases where
circuits leaving the
ring at one location to another when communication is lost with that site.
I can't imagine that someone hasn't done this, but I can't find any
information on it. I'm not very familiar with SONET (a little lower
level than I usually deal with) or what various vendors support
http://news.google.com/news?hl=enedition=usie=UTF-8newsclusterurl=http://www.theglobeandmail.com/servlet/ArticleNews/TPStory/LAC/20040610/PHONES10/TPNational/Canada
shorter URL: http://ln.ooz.net/27115
Several days ago somebody cut both sides of a SONET ring in Newfoundland.
From the article
Hi,
On Thursday 27 February 2003 18:16, Max's Lists wrote:
thanks all for your input.
on closer examination I found that the only two countries in Europe where
WorldCom seems to sell wavelength services retail are Belgium and
Luxemburg. There is some talk about selling DWDM wholesale in
of their existing infrastructure.
Two questions -- can anyone verify/offer more
insights/point to better
resources on WorldCom's DWDM startegy?
And -- as the rumor mill seems to suggest -- is it
indeed true that despite
obvious network economics SONET-based OC-12 and
OC-48 circuits are indeed
enjoying
questions -- can anyone verify/offer more insights/point to better
resources on WorldCom's DWDM startegy?
And -- as the rumor mill seems to suggest -- is it indeed true that despite
obvious network economics SONET-based OC-12 and OC-48 circuits are indeed
enjoying lower street prices than DWDM oc-12
I'm looking for recommendations for a small, cheap SONET ADM for our labs.
It doesn't have to be fancy, just basic ADM and TDM mux functionality -- we
don't care about NEBS, redundancy, remote management, cabling simplicity,
power etc.
Our ideal system would take in a channelized OC3/STM-1
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