[AusNOG] Vocus routing ove Megaport IX

Anthony Bortolotto a.bortolotto at infinite.net.au
Thu Apr 2 17:46:44 EST 2020

We have been seeing similar issues since Monday on return traffic but appears to be resolved today.
Anthony Bortolotto | Infinite Networks

On 2/4/20, 10:38 am, "AusNOG on behalf of Paul Holmanskikh" <ausnog-bounces at lists.ausnog.net on behalf of ausnog at pkholm.com> wrote:

    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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