[ixpmanager] Peering Manager question

[Barry O'Donovan]

Hi Brian,

> How does Peering Manager learn potential bilateral peers?  Should this
> be populated even if I do not have a router server yet?

Via sflow. And note that this is the same data / process required for 
the peering matrix also.

We fan sflow data to a number of processes (peer to peer graphs as 
another example). We have a script 'sflow-parser-byline.pl' which 
populates the bgpsessiondata table from sflow packets where:

  - protocol is v4 or v6
  - src / dst port is 179
  - packet is from an established TCP session


I just now realised that our script for this is not in the database. 
I'll poke Nick (his Perl foo in use here) and see if we can add this or 
if it needs cleaning. Plus documentation.

It's well worth the effort to get sflow and p2p graphs up and running. 
It's hands down the most used feature by our members. This document 
discusses sflow for p2p and the peering manager.

https://github.com/inex/IXP-Manager/wiki/Installing-Sflow-Support

  - Barry