IXP - PNI

Fri Apr 17 19:44:27 UTC 2009

the vlan tagging idea is a virtualization of the PNI construct.
why use an IX when running 10's/100's/1000's of private network
interconnects will do?

granted, if out of the 120 ASN's at an IX, 100 are exchanging on
average - 80KBs - then its likley safe to dump them all into a single 
physical port and vlan tag the heck out of it.  

its those other 20 that demand some special care.

(welcome to "how to grow your presence at an IX and when to leave"-101 :)

--bill