[Status] [Update #1] [sor] 11108 Fault types for loss and latency
Tue, 15 Sep 2009 09:02:54 +0100
Posted at 2009-09-15 08:59 BST by RevK
Update #1: 2009-09-15 09:02 BST
One of the key measures that are used for any network link are packet
loss and latency. Indeed, for transit links the metric for service
level guarantees are packet loss and latency. They are usually zero
packet loss, and below some sane low ...
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[Status] [Update #1] [sor] 11107 Disable 21CN BRAS rate limit
Tue, 15 Sep 2009 08:58:22 +0100
Posted at 2009-09-15 08:48 BST by RevK
Update #1: 2009-09-15 08:58 BST
BT has BRAS (Broadband Remote Access Servers) which are the other end
of the L2TP (layer 2 Tunneling Protocol) between us and BT.
One of the key features of 20CN BRASs was that they had a rate limit,
and BT have a complex system to set thi ...
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[Status] [Update #2] [sor] 11098 Control of MSAN profiles
Tue, 15 Sep 2009 08:56:10 +0100
Posted at 2009-09-15 08:45 BST by RevK
Update #2: 2009-09-15 08:56 BST
Basically, we are asking BT to let us turn off their DLM (Dynamic Line
Management) on any lines and give us direct control over the MSAN
profile in use on a line.
Importantly, we need the control to be instant, or as close to instant
as p ...
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[Status] [Update #1] [sor] Statement of Requirements
Tue, 15 Sep 2009 08:45:12 +0100
Posted at 2009-09-15 08:42 BST by RevK
Update #1: 2009-09-15 08:45 BST
Some of you know, BT have a system called Statement Of Requirements
(SOR) for making formal requests to BT to provide some service or
variation to a service.
We generally share SORs with industry - there really is no point not
doing so. B ...
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Re: Question about Be
Sun, 13 Sep 2009 19:05:26 +0100
On 13/9/09 17:38, Simon Farnsworth wrote:
> When you move to Be, your line is jumpered into Be's ISAM, and the voice
> part is filtered inside Be's ISAM; the voice is then carried on a bit of
> copper to the same bit of kit that handles it now.
Thanks for the interesting explanation - that's how I hoped it w ...
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[Status] [Update #1] [info] LNS work
Sun, 13 Sep 2009 18:18:18 +0100
Posted at 2009-09-13 18:07 BST by RevK
Update #1: 2009-09-13 18:18 BST
We have been working on the LNS issues Thu/Fri during the weekend.
Whilst we cannot reproduce it, we have almost completed work on a
work-around for the possible causes. We were hoping to test today.
It looks like we will not be able to do ...
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ZyXEL hand holding
Sun, 13 Sep 2009 16:28:22 +0100
I'm playing with a new P660 and am surprised by the result of a change I
made. I have moved the LAN IP address of the router from 192.168.1.1. to
192.168.1.254 (to make it look the same as Thomson it will be replacing)
and am surprised that this change did not also move the LAN gateway address
that is being serve ...
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[Status] [Update #1] [ongoing] 21CN Asford exchange
Sun, 13 Sep 2009 15:22:47 +0100
Posted at 2009-09-13 15:20 BST by AAISP
Update #1: 2009-09-13 15:22 BST
All lines on Ashford exchange (01233) are suffering low levels of
packet loss which is affecting performance. This appears to be
something which has been ongoing a little while, but is very subtle on
the graphs.
We have reported to BT to ...
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[Status] [Update #2] [ongoing] 21CN Crawley exchange
Sun, 13 Sep 2009 15:03:42 +0100
Posted at 2009-09-13 14:48 BST by AAISP
Update #2: 2009-09-13 15:03 BST
All 21CN lines on Crawley exchange are suffering horrible packet loss
and latency for a couple of weeks. See graphs below sample of lines on
Crawley exchange.
Bear in mind, when we say all 21CN lines on Crawley exchange, we don't
just me ...
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[Planned] [Update #1] LNS s/w upgrade
Sun, 13 Sep 2009 10:16:44 +0100
Posted at 2009-09-13 10:16 BST by AAISP
Update #1: 2009-09-13 10:16 BST
We are working on a work-around for issues seen last week. This is a
complex area and is requiring a lot of careful testing. We cannot
reproduce the original problem which makes it much harder.
I do not know if we will have new code today ...
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