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Author Topic: Peer with Telia at Chicago (Strange route through SJC)  (Read 3626 times)

comptech

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Peer with Telia at Chicago (Strange route through SJC)
« on: July 21, 2009, 09:14:25 PM »

Telia peering at Chicago has some strange routes. I get this from Telia's LG.

Traffic goes from Chicago to San Jose then back to Chicago (can't seem to traceroute past 72.52.92.70, but that's not the issue).

Code: [Select]
TeliaSonera Looking Glass - traceroute core1.chi1.he.net as-number-lookup

Router: Chicago
Command: traceroute core1.chi1.he.net as-number-lookup


traceroute to core1.chi1.he.net (216.218.252.168), 30 hops max, 40 byte packets
 1  sjo-bb1-link.telia.net (213.248.80.25)  46.633 ms  46.598 ms  46.622 ms
 2  hurricane-113209-sjo-bb1.c.telia.net (213.248.86.54)  55.959 ms  52.225 ms  49.541 ms
 3  10gigabitethernet4-1.core1.sjc2.he.net (72.52.92.70) [AS  6939]  48.043 ms  48.031 ms  48.113 ms

This seems to be the reason:  The whole /17 that is routed through San Jose.  Please take a look at this!  Unless there is some reason this was done, then nevermind.

Code: [Select]
TeliaSonera Looking Glass - show route protocol bgp core1.chi1.he.net

Router: Chicago
Command: show route protocol bgp core1.chi1.he.net


inet.0: 310197 destinations, 2230193 routes (310060 active, 67 holddown, 1170 hidden)
@ = Routing Use Only, # = Forwarding Use Only
+ = Active Route, - = Last Active, * = Both

216.218.128.0/17   *[BGP/170] 10w4d 21:20:27, MED 1, localpref 200, from 213.248.80.244
                      AS path: 6939 6939 I
                    > to 213.248.80.25 via so-6/1/0.0
                    [BGP/170] 10w4d 21:20:27, MED 1, localpref 200, from 213.248.80.240
                      AS path: 6939 6939 I
                    > to 213.248.80.25 via so-6/1/0.0
                    [BGP/170] 10w4d 21:20:27, MED 1, localpref 200, from 213.248.80.247
                      AS path: 6939 6939 I
                    > to 213.248.80.25 via so-6/1/0.0
                    [BGP/170] 10w4d 21:20:27, MED 1, localpref 200, from 213.248.80.241
                      AS path: 6939 6939 I
                    > to 213.248.80.25 via so-6/1/0.0
                    [BGP/170] 3d 02:28:46, MED 0, localpref 150
                      AS path: 3549 6939 6939 I
                    > to 64.212.107.141 via xe-0/2/0.0
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kcochran

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Re: Peer with Telia at Chicago (Strange route through SJC)
« Reply #1 on: July 21, 2009, 09:22:33 PM »

Hitting a router's IP won't usually give you great results due to filter rules.  Hitting something through it tends to be more useful.  What is the trace you're trying to do that doesn't involve the router's IP?
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comptech

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  • Posts: 31
Re: Peer with Telia at Chicago (Strange route through SJC)
« Reply #2 on: July 22, 2009, 12:12:41 PM »

I didn't think before I picked a point to trace against. 

I'm trying to get to the Chicago tunnel server of course.
Here's a more useful trace to the tunnel server (tserv9.chi1.ipv6.he.net) from Telia Chicago.  Still jumps around the US even though it's already there.

Code: [Select]
TeliaSonera Looking Glass - traceroute 209.51.181.2 as-number-lookup

Router: Chicago
Command: traceroute 209.51.181.2 as-number-lookup


traceroute to 209.51.181.2 (209.51.181.2), 30 hops max, 40 byte packets
 1  dls-bb1-link.telia.net (213.248.80.149)  20.960 ms  20.924 ms  21.004 ms
 2  atl-bb1-link.telia.net (213.248.80.145)  45.157 ms  42.314 ms  42.500 ms
 3  hurricane-ic-129712-atl-bb1.c.telia.net (213.248.79.70)  40.912 ms  44.937 ms  40.899 ms
 4  10gigabitethernet6-4.core1.ash1.he.net (72.52.92.157) [AS  6939]  47.176 ms  57.934 ms  46.305 ms
 5  10gigabitethernet1-2.core1.nyc4.he.net (72.52.92.85) [AS  6939]  45.139 ms  47.737 ms  47.831 ms
 6  10gigabitethernet1-2.core1.chi1.he.net (72.52.92.102) [AS  6939]  50.131 ms  52.581 ms  49.958 ms
 7  tserv9.chi1.ipv6.he.net (209.51.181.2) [AS  6939]  46.751 ms  45.423 ms  56.568 ms

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r1ske

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Re: Peer with Telia at Chicago (Strange route through SJC)
« Reply #3 on: August 05, 2009, 09:49:24 PM »

I'm getting the same route from a Chicago provider who uses Telia for transit.  Does Telia peer with you guys in Chicago?
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