iperf tests with default window size to
stargrid03.rcf.bnl.gov and stargrid04.rcf.bnl.gov
from pdsfgrid5.  Single thread.

Summary:
stargrid03:  ~25 kB/s
stargrid04:  ~25 kB/s

pdsfgrid5 65% iperf -c stargrid03.rcf.bnl.gov -t 1000 -i 10 -p 21000 -P 1
------------------------------------------------------------
Client connecting to stargrid03.rcf.bnl.gov, TCP port 21000
TCP window size: 64.0 KByte (default)
------------------------------------------------------------
[  5] local 128.55.24.30 port 33928 connected with 130.199.6.56 port 21000
[  5]  0.0-10.0 sec    344 KBytes    282 Kbits/sec
[  5] 10.0-20.0 sec    216 KBytes    177 Kbits/sec
[  5] 20.0-30.0 sec    232 KBytes    190 Kbits/sec
[  5] 30.0-40.0 sec    200 KBytes    164 Kbits/sec
[  5] 40.0-50.0 sec    248 KBytes    203 Kbits/sec
[  5] 50.0-60.0 sec    200 KBytes    164 Kbits/sec
[  5] 60.0-70.0 sec    272 KBytes    223 Kbits/sec
[  5] 70.0-80.0 sec    216 KBytes    177 Kbits/sec
[  5] 80.0-90.0 sec    216 KBytes    177 Kbits/sec
[  5] 90.0-100.0 sec    264 KBytes    216 Kbits/sec


pdsfgrid5 60% iperf -c stargrid04.rcf.bnl.gov -t 1000 -i 10 -p 21000 -P 1
------------------------------------------------------------
Client connecting to stargrid04.rcf.bnl.gov, TCP port 21000
TCP window size: 64.0 KByte (default)
------------------------------------------------------------
[  5] local 128.55.24.30 port 33922 connected with 130.199.6.109 port 21000
[  5]  0.0-10.0 sec    344 KBytes    282 Kbits/sec
[  5] 10.0-20.0 sec    288 KBytes    236 Kbits/sec
[  5] 20.0-30.0 sec    248 KBytes    203 Kbits/sec
[  5] 30.0-40.0 sec    248 KBytes    203 Kbits/sec
[  5] 40.0-50.0 sec    272 KBytes    223 Kbits/sec
[  5] 50.0-60.0 sec    256 KBytes    210 Kbits/sec
[  5] 60.0-70.0 sec    240 KBytes    197 Kbits/sec
[  5] 70.0-80.0 sec    264 KBytes    216 Kbits/sec
[  5] 80.0-90.0 sec    256 KBytes    210 Kbits/sec
[  5] 90.0-100.0 sec    232 KBytes    190 Kbits/sec