Charlie Boisseau | 18 Jun 2013 10:27
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OOB Swap in Telehouse North TFM17

Hi all,

We're seriously struggling to get BT to cooperate putting in our OOB ADSL line into our rack in TH North (TFM17 A01) - we're now on the third failed visit!  As you probably know running Cat5 in TH North is difficult and expensive unless the route is pretty short.  Is there anyone else who happens to be in TFM17 or the very near vicinity who would be willing to do an OOB swap?

FYI: TFM17 is on the fourth floor at the far right end of the corridor when you come out of the lift.

Thanks,

Charlie

-- 
Charlie Boisseau

Fluency Communications Ltd.
t. 0845 874 7000

Fluency Communications Ltd. is part of the Commsworld Group.

This Email and files transmitted with it are confidential and are intended for the sole use of the individual or organisation addressed. If you have received this Email in error please notify the sender immediately and delete it without using, copying, storing, forwarding or disclosing its contents to any other person While Fluency has endeavoured to ensure that any attachments do not contain viruses it will not be liable for any losses incurred by the recipient. Fluency Communications Ltd. Registered in Scotland. Company Number: SC390685. Registered Office Address: 45 Peffer Place, Edinburgh, EH16 4BB

Neil J. McRae | 16 Jun 2013 02:18
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Re: CWDM kit...

Assume the latter is a coherent system rather than coarse?

Neil.


Ive worked on a lot of BTI gear and have no complaints.


Their latest system is meant to be capable of 96 x 100G channels.


On 14 June 2013 09:53, Dariush Marsh-Mossadeghi <dariush <at> gravitas.co.uk> wrote:
So I count that as three +1's for ghip.

I'm curious, what makes them stand out from the crowd ?
Are they just bog standard at the right price ?
or is something specific ? ...specification, build quality, customer Service, price ?

Slightly off-topic etymological question that seems like the sort of trivia that the list might have an opinion on
A mate of mine said to me that the term 'bog standard' was short for 'British or German standard', an engineering term dating back to times when the label was some mark of quality. This contradicts the google-verse opinions but seems more plausible than some of the proffered explanations. Anyone here come across this ?

Dariush


On 14 Jun 2013, at 05:22, Mark Prior <mrp <at> mrp.net> wrote:

> On 14/06/13 1:51 AM, Brandon Butterworth wrote:
>> ghipsystems.com and cubeoptics.com are our favourites
>>
>
> +1 for ghipsystems
>
> Mark.
>
>



Sheryn, David | 12 Jun 2013 14:36
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Favicon

CWDM kit...

JAAMOI, what are folks using for CWDM kit these days ?  We used Nortel last time, which have been fine, but now that they are no more, I was wondering what else the list might recommend?

 

TIA,

 

David

 

Nigel Titley | 12 Jun 2013 12:58

Recommendations for VOIP provider in the UK

Does anyone have recommendations for helpful and reliable VOIP services 
providers in the UK. We're currently on a Gradwell hosted PABX solution 
but it's been getting more and more unreliable and we are now starting 
to get customer complaints: queued calls are being dropped before the 
phones ring, phones unregister randomly and I get emails telling me  
phones have unregistered when they haven't, I can't block incoming SIP 
hack attempts because Gradwell can't guarantee what IP address incoming 
calls will come from, they don't do IPv6 etc

Looking for a very basic PABX system: 8 or so extensions, incoming call 
queuing, voicemail. Advice gratefully received.

Nigel

Leo Vegoda | 12 Jun 2013 00:10
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IANA AS Numbers registry update

Hi,

The IANA AS Numbers registry has been updated to reflect two changes.
LACNIC has returned the range 61440-62463	in exchange for a block
composed of two non-contiguous ranges:

61440-61951	
263168-263679

Both ranges were allocated today. You can find the IANA AS Numbers
registry at:

http://www.iana.org/assignments/as-numbers

Regards,

Leo Vegoda
leo.vegoda@...

*******************************************
Internet Assigned Numbers Authority (IANA)
Internet Corporation for Assigned Names & Numbers
12025 Waterfront Drive, Suite 300
Los Angeles, CA 90094
Phone: +1 310 301 5800
Fax: +1-310-823-8649
*******************************************
Attachment (smime.p7s): application/pkcs7-signature, 5475 bytes
Dave Taht | 12 Jun 2013 01:33
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Bufferbloat + rate limiting + fq_codel: ADSL framing compensation currently broken in linux

At the last uknof meeting I had two questioners ask me for data on ADSL vs fq_codel and various rate shapers at the tail end of my talk:

http://www.youtube.com/watch?v=quAaZKBHvs8

Until recently the cable industry was paying the bills, not the adsl industry, and although I encouraged the questioners to do some of their own testing on their networks, I alluded to some puzzlement over the results we'd got with some preliminary testing with the ADSL devices we were able to open.

We spent some more time poking into ADSL stuff recently and it turned out the Linux "tc" rate shaping mechanism for linklayer atm and related framing things like PPPoe has been broken in Linux for quite some time. Various fixes have been discussed, but there is no one working the problem directly, presently.

The email thread discussing the problem(s) is here:

https://lists.bufferbloat.net/pipermail/bloat/2013-May/001540.html

And the bug turned out to be even deeper and older than we thought. This possibly explains a lot of the anomalies we've seen so far (but by no means all! waay too many binary blobs in dsl!) with rate shaping with hfsc/htb + fq_codel, and perhaps, also, some of the ones you've seen using your existing shapers.

Whenever and however a fix or set of fixes arrives we'll go back to looking into it.

--
Dave Täht

Fixing bufferbloat with cerowrt: http://www.teklibre.com/cerowrt/subscribe.html

Gavin Henry | 11 Jun 2013 13:06
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Offline MPLS TE tools

Hi All,

What are folks using for this or recommend?

Thanks,

Gavin.

--
Kind Regards,

Gavin Henry.
Managing Director.

T +44 (0) 1224 279484
M +44 (0) 7930 323266
F +44 (0) 1224 824887
E ghenry@...

Open Source. Open Solutions(tm).

http://www.suretecsystems.com/

Suretec Systems is a limited company registered in Scotland. Registered
number: SC258005. Registered office: 24 Cormack Park, Rothienorman, Inverurie,
Aberdeenshire, AB51 8GL.

Subject to disclaimer at http://www.suretecgroup.com/disclaimer.html

Do you know we have our own VoIP provider called SureVoIP? See
http://www.surevoip.co.uk

Did you see our API? http://www.surevoip.co.uk/api

Gavin Henry | 11 Jun 2013 09:18
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Gravatar

3rd party optics for Juniper MX5-80

Hi all,

What 3rd party optics are folks using on the MX5-80 platform?

Got a quote for Smart optics but will keep some Juniper branded ones of support if needed.

Recommendations?

Thanks.

Phil Thomas | 10 Jun 2013 23:01
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NGD Newport Transit

Hi,

 

We’re looking for some Transit in NGD that is independent of Telehouse London. We’re not looking to take a huge amount to start with (Less than 20 Mbps) and so we’re not keen to take a 100Mbps commit directly off the carriers already present in NGD. If anyone can help, if you can contact me (phil-jWhQ8VNdMhgqdlJmJB21zg@public.gmane.org) that would be appreciated.

 

Thanks

 

Phil

Simon Green | 6 Jun 2013 18:40
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Gravatar

Transfer vs 95th% based billing

Afternoon list :)

 

The vast majority of transit providers I come across handle billing with 95th% model, which is completely fine and I have no problem with. I far prefer it as a billing method, and currently we bill our clients the same way.

 

My problem is our customers don’t get it, and we really struggle to explain it to them. It seems a lot of ISPs bill their users based on transfer (ie xTB per month), and users tend to understand that model more. Our sales team want to be able to offer this model instead, but I am struggling to come up with a model that allows me to productise this.

 

So my question is, how do you handle the translation from 95th% to throughput billing?

 

Thanks in advance for any advice!

 

Simon

Brian Nisbet | 6 Jun 2013 11:45
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RIPE 67 Call For Papers

Morning,

On behalf of the RIPE Programme Committee I'd like to pass on the CfP 
for the next RIPE meeting, taking place in Athens in October.

Brian

*******************

Call for Papers: RIPE 67

A RIPE Meeting is an open event where Internet Service Providers, 
network operators and other interested parties get together. Although 
the meeting is mostly technical, it is also a chance for people to meet 
and network with others in their field.

RIPE 67 will take place on 14-18 October 2013 in Athens, Greece.

The RIPE Programme Committee (PC) is now seeking content proposals from 
the RIPE community for the Plenary, BoF and Tutorial sessions at RIPE 
67. The PC is looking for presentations covering topics of network 
engineering and operations, including but not limited to:

- IPv6 deployment
- Managing IPv4 scarcity in operations
- Commercial transactions of IPv4 addresses
- Data center technologies
- Network and DNS operations
- Internet governance and regulatory practices
- Network and routing security
- Content delivery
- Internet peering and mobile data exchange

Submissions

Attendees of the RIPE meetings are quite sensitive to keeping 
presentations non-commercial, and product marketing talks are strongly 
discouraged. Repeated audience feedback shows that the most successful 
talks focus on operational experience, research results, or case 
studies. For example, presenters wishing to describe a commercial 
solution should focus on the underlying technology and not attempt a 
product demonstration.

Presenters who are proposing a panel or BoF are encouraged to include 
speakers from several (perhaps even competing) companies and/or a 
neutral facilitator.

In addition to presentations selected in advance for the Plenary, the 
RIPE PC also offers several time slots for “Lightning Talks” which are 
selected immediately before or during the conference.

The following requirements apply:

- Proposals for Plenary talks, BoFs, Panels and Tutorials must be 
submitted for full consideration no later than 4 August 2013, using the 
meeting submission system at:

https://ripe67.ripe.net/submit-topic/

Proposals submitted after this date will be considered on a 
space-available basis.

- Presenters should indicate how much time they will require (30 minutes 
for Plenary talks is a common maximum duration, although some talks can 
be longer).

- Proposals for talks will only be considered by the PC if they contain 
at least draft presentation slides (slides may be updated later on). For 
panels, proposals must contain a clear description as well as names of 
invited panelists, presenters and moderators.

- Due to potential technical issues, it is expected that most if not all 
presenters/panelists will be physically present at the RIPE meeting.

- Tutorials are sessions with educational content and are alotted about 
2 hours.

- BOFs (Birds of a Feather sessions) are informal gatherings on topics 
of shared interest  among RIPE Meeting attendees. Technical facilities 
and logistical support are limited and
provided based on best effort and availability.

- Lightning talks should also be submitted using the meeting submission 
system. They must be short (10 minutes maximum) and often involve more 
timely topics. They can be submitted at any time. The allocation of 
lightning talk slots will be announced one day prior to the relevant 
session.

If you have any questions or requests concerning content submissions, 
please email pc [at] ripe [dot] net.


Gmane