[AusNOG] Vocus routing ove Megaport IX

Paul Holmanskikh ausnog at pkholm.com
Thu Apr 2 10:37:37 EST 2020


Is anyone getting traffic back from Vocus on Megaport IX Sydney ? It 
seems we are not getting anything from Vocus via Megaport IX.
There are two IPs one in our network other in Vocus with lots of traffic 
between them.  Our outbound happily flow over Megaport IX, but return 
goes around via Telstra and SuperLoop.

Is any one observing similar behaviour.  Vocus probably have reason to 
route it like that, but it is really strange.
I tried to contact Vocus NOC, but never get any response back.

 From Vocus Looking Glass.

BGP routing table entry for
Paths: (1 available, best #1, table Default-IP-Routing-Table)
   Not advertised to any peer
  1221 38195, (aggregated by 9797 9797.203.31.168)8 from (
       Origin IGP, metric 0, localpref 300, valid, internal, 
atomic-aggregate, best
       Community: 4826:5211 4826:6100 4826:52111
       Originator:, Cluster list:
       Last update: Wed Apr  1 12:11:54 2020

Way back from our network.

BGP routing table entry for, version 363299093
Paths: (5 available, best #3, table default)
   Advertised to update-groups:
   Refresh Epoch 1
   4826 from (
       Origin IGP, metric 0, localpref 200, valid, external, best
       Community: 65000:8000
       rx pathid: 0, tx pathid: 0x0

Paul Holmanskikh
Senior Network Engineer

Disclaimer: The contents of this email represent my own views and not 
necessarily the views of my employer

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