Core Switch 6509-Throuhput problem:
Topology of the network:
++facing issues when you are performing backups from NTC to Bangalore.
++Replication switches are connected to core switches.
++There is a PC connected to each core switch
++When we are doing a bandwidth test though IPERF from PC on 6509_1 to PC on 6509_2, we face throughput issues.
++when we connect a pc to 3560 and then perform a test to PC on 6509_2 it works fine.
++connected a PC on 3560 and did the test from 6509_1, it worked fine.
Testing is done through iperf.
When we do a transfer from PC on 6509_2 to PC on 6509_1 ,IPERF with 1 session is ok,2 session is also ok but after 3 session there is lot of TCP retransmission