Bell Canada (AS 577) and NTT (AS 2914) routing

Thu Sep 21 19:53:58 UTC 2017


> On Sep 21, 2017, at 2:53 PM, Scott Larson <stl at wiredrive.com> wrote:
> 
>     I'm looking for a contact at Bell to look at a routing/traffic issue
> we've been seeing since at least 5pm PDT yesterday. One of our uplinks is
> via NTT and after correlating with their NOC, it appears traffic passing
> through that link ends up dying inside the Bell network.
> 

% traceroute www.bell.ca
traceroute to www.bell.ca (184.150.211.7), 30 hops max, 60 byte packets
 1  Internal (x.x.x.x)  0.400 ms  0.436 ms  0.431 ms
 2  ae-1.a01.chcgil09.us.bb.gin.ntt.net (129.250.5.94)  0.378 ms  0.412 ms  0.409 ms
 3  ae-0.bell-canada.chcgil09.us.bb.gin.ntt.net (128.241.3.10)  0.765 ms bx4-chicagodt_pos0-1-0-1_core.net.bell.ca (64.230.186.217)  0.885 ms  0.979 ms
 4  tcore3-chicagocp_0-10-0-0.net.bell.ca (64.230.79.84)  26.458 ms  26.501 ms tcore4-chicagocp_0-10-0-0.net.bell.ca (64.230.79.86)  23.043 ms
 5  tcore4-toronto12_hundredgige1-2-0-0.net.bell.ca (64.230.79.156)  26.938 ms  26.939 ms  26.978 ms
 6  tcore4-montreal01_hundredgige0-9-0-0.net.bell.ca (64.230.79.195)  26.487 ms tcore3-montreal02_1-7-0-0.net.bell.ca (64.230.79.31)  24.361 ms tcore4-montreal01_hundredgige0-9-0-0.net.bell.ca (64.230.79.195)  25.795 ms
 7  tcore4-montreal02_pos0-7-0-0_core.net.bell.ca (64.230.168.98)  24.879 ms  24.859 ms tcore3-montrealak_pos0-13-0-0.net.bell.ca (64.230.32.117)  24.168 ms
 8  agg2-montrealak_xe5-0-0.net.bell.ca (64.230.173.46)  25.591 ms  25.534 ms agg2-montrealak_xe7-0-0.net.bell.ca (64.230.173.38)  23.145 ms
 9  dis1-montreal43_7-0-0.net.bell.ca (64.230.128.70)  23.254 ms  21.132 ms  33.596 ms
10  * * *
11  216.208.226.199 (216.208.226.199)  25.462 ms  25.444 ms  23.482 ms