[c-nsp] Verifying BGP Propragation

[Paul Stewart]

This is a well taken point... We consider ourselves to have "good" peering
and transit connections however Hydro One/Shaw here in Canada does have
extremely good reach to be honest.  Our one upstream is now peering direct
with them which helps in more local traffic.... But this one downstream gets
their connection from them directly so being one more AS hop away doesn't
help us for this particular customer..:)

Take care,

Paul


-----Original Message-----
From: Stephen J. Wilcox [mailto:steve at telecomplete.co.uk] 
Sent: Monday, July 26, 2004 1:52 PM
To: Paul Stewart
Cc: 'Earls, Michael'; 'NSP List'
Subject: RE: [c-nsp] Verifying BGP Propragation


so this is expected behaviour

the key point here is that to provide transit you need to maintain as good
paths 
as your competition which may include v large ISPs, in particular minimising
how 
much of your transit customer traffic goes to your transit suppliers will
help

at this point you drop into a peering vs transit debate and a whole bunch of

associated economics which states even if you can buy transit for $10/mb you

have to spend $30/mb to maintain a network if you want to stay in the game

Steve

On Mon, 26 Jul 2004, Paul Stewart wrote:

> Hi Michael...
> 
> When I do show ip bgp nei x.x.x.x advertised-routes I see the prefixes 
> leaving our system to the upstreams.  According to the upstreams both 
> are making it through their system which I can verify with one 
> upstream on their looking glass (level3).  With the other upsteam I do 
> not see the advertisement on their looking glass however this upstream 
> (Bell Nexxia) is apparantly directly connected to Hydro One Telecom 
> which is where our downstream gets their other pipe from.  So I'm told 
> by Bell Nexxia that we would be an AS hop further away (which makes 
> sense).
> 
> At this point I'm unable to confirm or see the routes for our 
> downsteam (which by the way is AS14456).  We are AS11666.
> 
> Thanks,
> 
> Paul
> 
> 
> -----Original Message-----
> From: Earls, Michael [mailto:Michael.Earls at 53.com]
> Sent: Friday, July 23, 2004 6:33 PM
> To: 'Paul Stewart'; 'NSP List'
> Subject: RE: [c-nsp] Verifying BGP Propragation
> 
> 
> You can do some show commands on your side to verify that you are 
> sending them your prefixes, Do es either route show up when looking at 
> the looking glass?
> 
> shwo ip bgp neighbors x.x.x.x advertised-routes
> 
> michael
> 
> -----Original Message-----
> From: Paul Stewart [mailto:pauls at nexicom.net]
> Sent: Friday, July 23, 2004 4:38 PM
> To: 'NSP List'
> Subject: [c-nsp] Verifying BGP Propragation
> 
> 
> Hi there...
> 
> We have a downstream connection that I'm trying to confirm is actually 
> appearing through two of our pipes.  The downstream has good 
> connectivity through other providers so a lot of their inbound traffic 
> is closer than what we are offering them.
> 
> When I try various looking glass sites and route servers our path 
> doesn't showup most of the time, if any of the time.
> 
> How can I verify that filters are not blocking their advertisements 
> from us effectively?  I have talked to both upstreams and they confirm 
> that advertisements are showing up on their edge and passing 
> through....
> 
> Seems like a really basic thing, but I want to make sure...
> 
> Thanks,
> 
> Paul
> 
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