Level 3 routing

s0ck · 23 Jul 2010 at 12:20

Is it common for them to push things via the US? :s

I'm seeing an extra 100ms from our data centre as opposed to our office connection...

daz · 23 Jul 2010 at 12:38

Shouldn't happen except in very rare circumstances...

celliott · 23 Jul 2010 at 21:00

Since most UK traffic goes through LINX at some point and theyve been having some issues over the last few days, its possible they were routing around it.

bigredshark · 24 Jul 2010 at 11:56

celliott said:
Since most UK traffic goes through LINX at some point and theyve been having some issues over the last few days, its possible they were routing around it.

They had one issue for about 20 minutes which affected one of the LANs, it's not likely to be related. Even then it shouldn't go via the US unless one end of your connection has a terrible upstream...

s0ck · 24 Jul 2010 at 18:52

so you wouldn't expect to get to singapore via san jose?

bigredshark · 24 Jul 2010 at 19:29

s0ck said:
so you wouldn't expect to get to singapore via san jose?

Well that's different, that's the logical route to take for most providers. There's very little cable capacity the other way round (across asia) so through the US is a fairly logical route, particularly for US centric transit networks. I believe level3 will bounce you through the US in one or two hops (NY and SJ) at the IP level (no idea about the MPLS layer below that) so it's not too bad...

s0ck · 24 Jul 2010 at 22:22

shame. bt.net seems to have a much more direct route that is over 100ms quicker ;/