it usually means either way.. that is the tolerance within which all is well and no more questions need to be asked when the ratio varies above or below then usually people want to know why that is and whether peering is still in their interest altho it doesnt usually rule it out eg a large web hoster will have much more outbound traffic and isps still need to access their websites Steve On Tue, 7 May 2002, Scott Granados wrote:

I read the cw and uu examples. In the case of 1.5 to 1 which seems really close but I'm assuming this means I can send you 1.5 to every one received. Does this also apply in the inverse ie uunet sends back to me only 1.5 to my 1 or is this less critical?

On Tue, 7 May 2002, PETER JANSEN wrote:

...

Scott:

Traffic ratios are one of the many parameters that ensure equality and a mutual benefit between networks in a settlement free peering relationship.

Have a look at our peering policy at www.cw.com/peering. It will provide you with some information on peering with large networks.

Regards

Peter Jansen Global Peering Cable & Wireless

Date: Tue, 07 May 2002 13:30 -0400 (EDT) From: Scott Granados <scott@graphidelix.net> To: nanog@merit.edu Sender: owner-nanog@merit.edu Delivered-to: nanog-outgoing@trapdoor.merit.edu Delivered-to: nanog@trapdoor.merit.edu Delivered-to: nanog@merit.edu Subject: ratios

I'm not overly familiar with this but I wondered if someone could detail for me the basics of using ratios to determine elegibility to peer? I have heard that some carrers especially the largest require a specific ratio is this in fact true and is the logic as simple as just insuring equal use of the peer?

Thanks

Scott