Slow throughput on 3750

[ironjlabay1]

Hello,

We get less than 4 Mbits/sec of throughput on an iperf test when connected via a 3750x. The same client, running the same test to the same iperf server gets about 40 Mbits/sec of throughput when connected via a 4507 or when connected via a Cisco 3850, 3560x, or 3560cg. Can't seem to figure out the reason for this. Thanks in advance!


535-444a-3750x-99024#sh ver
Cisco IOS Software, C3750E Software (C3750E-IPBASEK9-M), Version 15.0(2)SE7, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2014 by Cisco Systems, Inc.
Compiled Thu 23-Oct-14 12:49 by prod_rel_team

ROM: Bootstrap program is C3750E boot loader
BOOTLDR: C3750E Boot Loader (C3750X-HBOOT-M) Version 12.2(53r)SE2, RELEASE SOFTWARE (fc1)

535-444a-3750x-99024 uptime is 4 days, 19 hours, 9 minutes
System returned to ROM by power-on
System restarted at 21:27:32 EDT Tue Mar 29 2011
System image file is "flash:/c3750e-ipbasek9-mz.150-2.SE7.bin"

[salemmahara]

3750x or any other L3 switches have acceptable forward rate and back plane to handle lots of packets! Yes, lots of. Have you checked your cpu and memory and also inbound and out band traffic on involved interfaces?

you can check memory and cpu with  show process cpu sorted and show process memory sorted commands. You can also check average traffic using show interface command or monitor them using SNMP.

BTW, are sure about your cabling ? connectors and ,,,,? I mean, are they totally the same in your test environment?