[AusNOG] AARNet AS path prepending on Equinix IX

[Joseph Goldman]

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 26^th 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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