sql server transaction replication network load

Hi Guys,

We have enabled Transaction replication from Server A to Server B; We want to figure out who data is transferred in peak vs non peak hours?

and what's the network latency as data is moved between one DC to different DC, Any Free tools or T-SQL statement that can determine the work load of replication would be helpful.

Regards,

Navin

Navin.D http://dnavin.wordpress.com