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AS852 - AS577 problems ?
From: Mike Tancsa <mike () sentex net>
Date: Tue, 25 Feb 2003 22:10:03 -0500


Anyone know what is up between them in Ontario, Canada ? I am seeing pretty high latency and packet loss in both directions. Dont know if its a chronic capacity problem or just a dead/down circuit ?

Bell's looking glass showed (prior to my prepending)

BGP routing table entry for 199.212.134.0/24, version 89013385
Paths: (2 available, best #1)
  Not advertised to any peer
  852 11647, (received & used)
    206.108.96.231 (metric 2060) from 206.108.96.17 (206.108.96.17)
      Origin IGP, metric 1000, localpref 110, valid, internal, best
      Community: 577:55 577:4520 577:5602 577:10100
      Originator: 206.108.96.231, Cluster list: 206.108.96.17, 206.108.96.1
  852 11647, (received & used)
    206.108.96.231 (metric 2060) from 206.108.96.18 (206.108.96.18)
      Origin IGP, metric 1000, localpref 110, valid, internal
      Community: 577:55 577:4520 577:5602 577:10100
      Originator: 206.108.96.231, Cluster list: 206.108.96.18, 206.108.96.1


Type escape sequence to abort.
Tracing the route to ns.sentex.ca (199.212.134.1)

1 bxsmc-fe5-0-0.in.bellnexxia.net (205.207.238.210) 20 msec 204 msec 200 msec 2 core2-toronto63-pos11-5.in.bellnexxia.net (206.108.98.141) 0 msec 0 msec 4 msec 3 core4-toronto63-pos6-0.in.bellnexxia.net (64.230.242.105) 0 msec 4 msec 0 msec 4 core4-toronto12-pos13-0.in.bellnexxia.net (64.230.242.181) 0 msec 0 msec 0 msec 5 core1-toronto12-pos0-1.in.bellnexxia.net (64.230.242.198) 0 msec 0 msec 0 msec 6 bx5-toronto12-so-0-1-0-0.in.bellnexxia.net (64.230.242.150) 0 msec 0 msec 0 msec 7 toroonnlgr00.bb.telus.com (154.11.3.25) [AS 852] 176 msec 180 msec 176 msec
  8 toroonzddr00.bb.telus.com (154.11.6.3) [AS 852] 172 msec 176 msec 176 msec
  9  *
hespler155ATM-waterloo.sentex.ca (199.212.135.77) [AS 11647] 164 msec 172 msec
 10  *
    ns.sentex.ca (199.212.134.1) [AS 11647] 160 msec *

and a traceroute from telus' route server to Bell
route-views.on>traceroute 206.108.111.125

Type escape sequence to abort.
Tracing the route to bx5-toronto12-so-0-0-1-0.in.bellnexxia.net (206.108.111.125)

  1 toroonxngr00.bb.telus.com (154.11.63.85) 0 msec 0 msec 0 msec
  2 toroonnlbr00.bb.telus.com (154.11.11.37) 4 msec 0 msec 0 msec
  3 toroonnlgr00.bb.telus.com (154.11.11.58) 0 msec 0 msec 0 msec
4 bx5-toronto12-so-0-0-1-0.in.bellnexxia.net (206.108.111.125) [AS 577] 164 msec 164 msec 164 msec
route-views.on>
route-views.on>show ip bgp 206.108.111.125
BGP routing table entry for 206.108.111.0/24, version 117710304
Paths: (2 available, best #1)
  Advertised to non peer-group peers:
    198.32.162.100 198.32.162.102
  577, (aggregated by 577 206.108.96.25)
    154.11.0.147 from 154.11.0.150 (154.11.0.150)
Origin IGP, metric 0, localpref 90, valid, internal, atomic-aggregate, best
      Originator: 154.11.0.147, Cluster list: 154.11.0.150
  577, (aggregated by 577 206.108.96.25)
    154.11.0.147 from 154.11.0.151 (154.11.0.151)
      Origin IGP, metric 0, localpref 90, valid, internal, atomic-aggregate
      Originator: 154.11.0.147, Cluster list: 154.11.0.151
route-views.on>


i.e. as soon as it hits Bell's network, there is quite a jump in latency and packet loss.

Some of the paths to 577 out of Telus actually go down via Sprint in Chicago which seems rather odd
e.g.
route-views.on>show ip bgp 198.235.69.11
BGP routing table entry for 198.235.69.0/24, version 239594939
Paths: (2 available, best #1)
  Advertised to non peer-group peers:
    198.32.162.100 198.32.162.102
  1239 577
    154.11.0.155 from 154.11.0.150 (154.11.0.150)
      Origin IGP, metric 100, localpref 100, valid, internal, best
      Originator: 209.115.137.204, Cluster list: 154.11.0.150
  1239 577
    154.11.0.155 from 154.11.0.151 (154.11.0.151)
      Origin IGP, metric 100, localpref 100, valid, internal
      Originator: 209.115.137.204, Cluster list: 154.11.0.151
route-views.on>

Anyone know whats up ?


        ---Mike
--------------------------------------------------------------------
Mike Tancsa,                                      tel +1 519 651 3400
Sentex Communications,                            mike () sentex net
Providing Internet since 1994                    www.sentex.net
Cambridge, Ontario Canada                         www.sentex.net/mike


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