BellNexxia to C&W problems in NY ? (AS577 - AS3561)

Mark Kasten mark at cw.net
Tue Mar 9 23:38:58 UTC 2004


Mike,
    It does appear that this interconnect is running a bit hot.  If 
there is anyone from Bell Nexxia/AS577 listening, feel free to ping me 
offline and I'll see what I can do to help out.  But, to be honest, this 
is an issue that could/should be handled your upstream and noc at cw.net.  
I don't see any emails from you sent to noc at cw.net. 


Regards,
    Mark Kasten



Mike Tancsa wrote:

>
>
> I have a few users exchanging data with sites inside Bell Canada call 
> in to complain today with various symptoms (eg. VPNs timing out, 
> transfers taking a long time).  After a bit of narrowing down, it 
> would seem that when the traffic comes at me via C&W from Bell (2 of 
> my 3 transit providers 852 and 6539 talk to parts of Bell this way) 
> the problems are acute.
>
> Looking at traceroutes between C&W and Bell IP space, there does 
> indeed seem to be some issue between their exchange point in NY
>
> The 2 snippets being
> From bell to cw
>   6 bx2-newyork83-pos3-0.in.bellnexxia.net (206.108.103.194) 20 msec 
> 20 msec 16 msec
>   7 iar4-so-2-3-0.NewYork.cw.net (208.173.135.185) [AS 3561] 172 msec 
> 176 msec 176 msec
> From cw to bell
>   6 iar4-loopback.NewYork.cw.net (206.24.194.39) 68 msec 68 msec 72 msec
>   7 teleglobe.NewYork.cw.net (208.173.135.186) 208 msec 208 msec 208 msec
>
> At one point in the day, it was adding about 400 to 500ms of latency
>
> Type escape sequence to abort.
> Tracing the route to route-server.cw.net (209.1.220.234)
>
>   1 dis40-toronto63-fe5-0-0.in.bellnexxia.net (205.207.238.210) 32 
> msec 0 msec 232 msec
>   2 core2-toronto63-pos11-5.in.bellnexxia.net (206.108.98.141) 0 msec 
> 0 msec 0 msec
>   3 core3-toronto63-pos6-0.in.bellnexxia.net (64.230.242.101) 0 msec 0 
> msec 0 msec
>   4 core4-montreal02-pos13-1.in.bellnexxia.net (64.230.243.237) 28 
> msec 204 msec 208 msec
>   5 core1-newyork83-pos0-0.in.bellnexxia.net (206.108.99.190) 20 msec 
> 20 msec 16 msec
>   6 bx2-newyork83-pos3-0.in.bellnexxia.net (206.108.103.194) 20 msec 
> 20 msec 16 msec
>   7 iar4-so-2-3-0.NewYork.cw.net (208.173.135.185) [AS 3561] 172 msec 
> 176 msec 176 msec
>   8 agr2-loopback.NewYork.cw.net (206.24.194.102) [AS 3561] 184 msec 
> 176 msec 180 msec
>   9 dcr1-so-6-1-0.NewYork.cw.net (206.24.207.53) [AS 3561] 184 msec 
> 180 msec 184 msec
>  10 dcr2-loopback.SantaClara.cw.net (208.172.146.100) [AS 3561] 248 
> msec 248 msec 248 msec
>  11 bhr1-pos-0-0.SantaClarasc8.cw.net (208.172.156.198) [AS 3561] 256 
> msec 244 msec 244 msec
>  12 bhr2-ge-2-0.SantaClarasc8.cw.net (208.172.147.54) [AS 3561] 252 
> msec 248 msec 248 msec
>  13 209.1.169.177 [AS 3561] 172 msec 184 msec *
>
>
>
> route-server.cw.net>traceroute looking-glass.in.bellnexxia.net
> Translating "looking-glass.in.bellnexxia.net"...domain server 
> (64.41.189.214) [OK]
>
> Type escape sequence to abort.
> Tracing the route to looking-glass.in.bellnexxia.net (205.207.237.50)
>
>   1 209.1.169.178 0 msec 0 msec 0 msec
>   2 bhr1-ge-2-0.SantaClarasc8.cw.net (208.172.147.53) 0 msec 0 msec 0 
> msec
>   3 dcr2-so-3-0-0.SantaClara.cw.net (208.172.156.197) 0 msec 4 msec 0 
> msec
>   4 dcr1-loopback.NewYork.cw.net (206.24.194.99) 76 msec
>     dcr2-loopback.NewYork.cw.net (206.24.194.100) 72 msec
>     dcr1-loopback.NewYork.cw.net (206.24.194.99) 68 msec
>   5 agr1-so-0-0-0.NewYork.cw.net (206.24.207.50) 68 msec 72 msec 68 msec
>   6 iar4-loopback.NewYork.cw.net (206.24.194.39) 68 msec 68 msec 72 msec
>   7 teleglobe.NewYork.cw.net (208.173.135.186) 208 msec 208 msec 208 msec
>   8 core1-newyork83-pos1-1.in.bellnexxia.net (206.108.103.193) 260 
> msec 332 msec 216 msec
>   9 core4-montreal02-pos6-3.in.bellnexxia.net (206.108.99.189) 196 
> msec 204 msec 200 msec
>  10 64.230.243.238 208 msec 296 msec 460 msec
>  11 core2-torontodc-pos3-1.in.bellnexxia.net (206.108.104.2) [AS 577] 
> 432 msec 404 msec 404 msec
>  12 dis4-torontodc-Vlan82.in.bellnexxia.net (206.108.104.30) [AS 577] 
> 400 msec 240 msec 440 msec
>  13 looking-glass.in.bellnexxia.net (205.207.237.50) [AS 577] 452 msec 
> 236 msec 244 msec
> route-server.cw.net>
>
> Anyone know whats up ?
>
>     ---Mike
> --------------------------------------------------------------------
> Mike Tancsa,                                        tel +1 519 651 3400
> Sentex Communications,                   mike at sentex.net
> Providing Internet since 1994                    www.sentex.net
> Cambridge, Ontario Canada              www.sentex.net/mike
>




More information about the NANOG mailing list