Re: Peering point speed publicly available?

[Tony Li <tony.li () tony li>]

Is it really important to know the link speeds?  What good does it do 
without knowing
about the loading on those links?

I would MUCH rather have an empty T1 than have to contend with a very 
oversubscribed OC-768.

Tony



On Jul 1, 2004, at 5:25 PM, Cody Lerum wrote:

> DNS can sometimes give you a hint
>  
> [my nets snipped]
>  4 t3-1-2-0.ar2.SEA1.gblx.net (64.211.206.113)  20.436 ms  18.309 ms  
> 17.605 ms   <------------DS3
>   5  so1-0-0-2488M.ar4.SEA1.gblx.net (67.17.71.210)  17.607 ms  16.982 
> ms  16.971 ms  <-----OC-48
>  6  p3-3.IR1.Seattle-WA.us.xo.net (206.111.7.5)  17.864 ms  19.491 ms  
> 17.181 ms
>  7  p5-1-0-3.RAR1.Seattle-WA.us.xo.net (65.106.0.197)  17.723 ms  
> 17.632 ms  19.045 ms
>  8  65.106.0.50 (65.106.0.50)  38.133 ms  39.197 ms  49.961 ms     
> MPLS Label=101549 CoS=0 TTL=1 S=1
>  9  p0-0-0d0.RAR1.SanJose-CA.us.xo.net (65.106.1.61)  37.669 ms  
> 38.572 ms  36.517 ms
> 10  p7-0.DCR1.DC-SanJose-CA.us.xo.net (65.106.2.146)  37.830 ms  
> 36.524 ms  37.743 ms
> 11  ge1-1.CDR2.DC-SanJose-CA.us.xo.net (209.220.168.10)  38.428 ms  
> 38.050 ms  37.179 ms <-----Gig Ethernet
> 12  205.158.6.100.ptr.us.xo.net (205.158.6.100)  40.179 ms  39.784 ms  
> 39.444 ms
> 13  x218.cd9e6c.sj.concentric.net (205.158.108.218)  39.188 ms  39.723 
> ms  39.895 ms
>  
> However MPLS hidden hops may hide internal paths, and any connection 
> may be limited to slower than its line rate, and dns entries may be 
> old....
>  
> It's not publicly available at one source that I'm aware of, and if 
> there is they don't have my info.
>  
> -C
> From: owner-nanog () merit edu [mailto:owner-nanog () merit edu] On Behalf 
> Of Erik Amundson
> Sent: Thursday, July 01, 2004 6:10 PM
> To: nanog () merit edu
> Cc: network.support () oati net
> Subject: Peering point speed publicly available?
>
>
> NANOG,
>
>  
>
> I have a question regarding information on my ISP’s peering 
> relationships.  Are the speeds of some or all peering relationships 
> public knowledge, and if so, where can I find this?  By speed, I mean 
> bandwidth (DS3, OC3, 100Mbps, 1Gbps, etc.).  I am trying to transfer 
> large stuff from my AS, through my ISP, through another ISP, to 
> another AS, and I’m wondering how fast the peering point is between 
> the ISPs.  I’m working with my provider to get this information as we 
> speak, but I’m wondering if it’s available publicly anywhere.  If it 
> were, this could be one way to evaluate providers in the future, I 
> guess…
>
>  
>
> Erik Amundson
> A+, N+, CCNA, CCNP
> IT and Network Manager
> Open Access Technology Int'l, Inc.
> Phone (763) 201-2005
> Fax (763) 553-2813
>  mailto:erik.amundson () oati net
>
>