[AusNOG] AARNet AS path prepending on Equinix IX

[Nathan Brookfield]

As Joe has pointed out rightly so, AS17819 is a Transit AS not the MLPE, that's AS24115 from memory.

Kindest Regards,
Nathan Brookfield

Chief Executive Officer
Simtronic Technologies Pty Ltd

Web: http://simtronic.com.au
Phone: 1300 592 330
Fax: (02) 4749 4950

On 27 Apr 2015, at 19:32, Joseph Goldman <joe at apcs.com.au<mailto:joe at apcs.com.au>> wrote:

Equinix might be their transit rather than IX?

Either way if you are outbound traffic - then LocalPref your IX links will fix this instantly.

On 27/04/15 19:11, Ben Thompson wrote:
Hi all,

As anyone else noticed that AARNet seems to be AS Path prepending routes shared on the Equinix IX in Sydney? We have a couple of customers on AARNet and from about the 26th March, their traffic has been hitting our transit links instead of coming in on the IX.

sh bgp ipv4 uni 103.4.85.91
BGP routing table entry for 103.4.85.0/24, version 249751511
Paths: (4 available, best #4, table default)
Multipath: eBGP
  Advertised to update-groups:
     1
  4826 7575 58528, (aggregated by 58528 10.100.100.11)
    103.29.52.1 (metric 2) from 103.29.52.1 (103.29.52.1)
      Origin IGP, metric 0, localpref 100, valid, internal, atomic-aggregate
  17819 7575 7575 58528, (aggregated by 58528 10.100.100.11)
    103.13.68.9 from 103.13.68.9 (27.111.240.3)
      Origin IGP, localpref 100, valid, external, atomic-aggregate
      Community: 24115:65220
  7575 7575 58528, (aggregated by 58528 10.100.100.11)
    202.167.228.46 from 202.167.228.122 (202.167.228.122)
      Origin IGP, metric 68, localpref 100, valid, external, atomic-aggregate
  7575 7575 58528, (aggregated by 58528 10.100.100.11)
    202.167.228.46 from 202.167.228.123 (202.167.228.123)
      Origin IGP, metric 68, localpref 100, valid, external, atomic-aggregate, best

Already emailed the NOC, just wondering if anyone else had noticed this.

Thanks,
Ben



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