Replication throughput

Avamar 5.0

admin@source_gridname:/usr/local/avamar/etc/>: iperf -c repl_target_grid -w 60k -t 30 -i 10
------------------------------------------------------------
Client connecting to repl_target_grid, TCP port xxxx
TCP window size: 120 KByte (WARNING: requested 60.0 KByte)
------------------------------------------------------------
[ 3] local xx.xx.xx.xx port xxxxxx connected with xx.xx.xx.xx port xxxx
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-10.0 sec 27.3 MBytes 22.9 Mbits/sec
[ 3] 10.0-20.0 sec 28.4 MBytes 23.8 Mbits/sec
[ 3] 20.0-30.0 sec 28.4 MBytes 23.8 Mbits/sec
[ 3] 0.0-30.0 sec 84.1 MBytes 23.5 Mbits/sec
This shows we have a intra-site bandwidth of roughly 23.8 Mbits/sec. It is generally accepted that Avamar replication can use around 60-80% of the total link capacity. If we use 70% as an average figure this gives us 16.6 Mbits/second.
We therefore have 16.6 Mbits/second = 7.47 Gigabytes/hr
With a backup window of 20 hours (current setting) we would be able to replicate up to 149.4 per day.
The client xxxx itself is replicating more than 100GB of new data per day. So we need to focus on the network.
Please check your network settings and let me know for any concerns. Thanks.