Hi Jonty Good answer by James - there are other things you can do to look into what's going on within your network, such as getting clever with your DNS recursors but the only thing which will provide relevant data are collectors.
The collector data will give you a picture of the volume of traffic to certain points, providers, CDN's etc, what you then do will be dependent on a number of factors which James alluded to, port and membership fees being one but also which IXP to choose based on its membership (your flow data will help you here). One relevant for us, being in the grim North - is then the added cost of connectivity to that point (Leeds, Manchester, London, etc) - we've had the same debate as you are fairly recently which is still ongoing. Still fairly new myself and we're a fairly small company - found the community to be willing to help a newbie and been grateful for it [1]. Thanks Chris [1] - Subject to usual beverage related rules. -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of James Greig Sent: 10 September 2012 12:09 To: Jonty Hewlett; [email protected] Subject: Re: [uknof] List newbie! Hi Jonty, I hope the following helps to answer this: Is peering going to give you benefits over transit. 1 major factor is that peering in most cases is free whereas transit is paid for so as part of the bigger picture it helps in reducing bandwidth costs. Of course, things like public peering exchange fees, port costs etc come into it but as part of the bigger picture it's there to reduce bandwidth costs, build a more resilient internet, open up relationships and create more direct paths. top 1000 destination subnets being routed to - This does really differ based on what traffic your network does. If you're a broadband provider you may find some of 'your' top destinations are youtube, iplayer etc. Whereas, if you're a data centre it may be more outbound to broadband providers and ISP's. You really do need something that will create this type of data output for you. We use Cisco's Netflow to pull out AS Stats but there's likely to be a lot of other alternatives out there. Best regards, James Greig Nuco Technologies Ltd Unit 1 Northampton Science Park, Moulton Park Industrial Estate, Northampton, NN3 6LG Tel: 0844 745 1300 - Fax: 0844 745 1303 - email: [email protected] Relevant site: http://www.host-it.co.uk Group : www.nucotechnologies.com Services Include : Hosting and Rack space : www.host-it.co.uk Off Site Back Up Software : www.mirrorservers.co.uk Email Server and Proxy Software : www.computalynx.net Web Design and SEO : www.macrodesign.co.uk nuco technologies ltd is a company registered in England and Wales with company number 04470751 IMPORTANT - The information transmitted in this email is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipient is prohibited. If you received this in error, please delete this email and inform [email protected] immediately. Knowledge I.T. 'Unifying Business Technology' www.knowledgeit.co.uk Knowledge Limited, Company Registration: 1554385 Registered Office: New Century House, Crowther Road, Washington, Tyne & Wear. NE38 0AQ Leeds Office: Viscount Court, Leeds Road, Rothwell, Leeds. LS26 0GR Tel: 0845 142 0020. Fax: 0845 142 0021 E-Mail Disclaimer: This e-mail message is intended to be received only by persons entitled to receive the confidential information it may contain. E-mail messages to clients of Knowledge IT may contain information that is confidential and legally privileged. Please do not read, copy, forward, or store this message unless you are an intended recipient of it. If you have received this message in error, please forward it to the sender and delete it completely from your computer system. Please consider the environment before printing this email.
