Hi,
I am doing a lab scenario with two 2610-24 switches before implementing in production. The test case is to create a trunk between SW-01 and SW-02 using three ports.
I have upgraded both switches to the latest firmware i could find (#R.11.63), and the configuration has been cleared on both switches.
The configuration is simple and identical on both switches:
SW-01:
; J9085A Configuration Editor; Created on release #R.11.63
hostname "SW-01"
trunk 19,21,23 Trk1 LACP
snmp-server community "public" Unrestricted
vlan 1
name "DEFAULT_VLAN"
untagged 1-18,20,22,24-28,Trk1
ip address 10.11.133.40 255.255.255.0
ip address 10.11.181.40 255.255.255.0
exit
spanning-tree Trk1 priority 4
password manager
password operator
SW-02:
; J9085A Configuration Editor; Created on release #R.11.63
hostname "SW-02"
trunk 19,21,23 Trk1 LACP
snmp-server community "public" Unrestricted
vlan 1
name "DEFAULT_VLAN"
untagged 1-18,20,22,24-28,Trk1
ip address 10.11.133.41 255.255.255.0
ip address 10.11.181.41 255.255.255.0
exit
spanning-tree Trk1 priority 4
password manager
password operator
i have two clients with 1gb nic connected to gb ports in SW01, and two clients with 1 gb nic connected to gb ports in SW02.
port 19,21 and 23 are 10/100 ports.
I start iperf server on each of the clients in SW01, and perform a connection from each of the clients in SW02.
The result is about 40-50 Mbit/s each, with a total of ~94Mbit/s.
I thought this was strange and i struggeled with different configs trying to get the speed up (Active/passive, dynamic trunks etc etc...)
I like the console, but after a while i used the web interface, and i could clearly see in the graphs that all traffic was passing through port 19. The other ports was without traffic. I then decided to plug out port 19, to see if the traffic was redirected to port 21 or 23 in the trunk. To my surprise the speed boosted as i would have expected in the first place, and i now got 94-95 Mbit/s each, with a total of ~190Mbit/s.
I thought maybe there was something wrong with port 19, so i plugged it back in, and plugged out 21 instead. Same result: 94-95 Mbit/s each, with a total of ~190Mbit/s.
I tried to plug out 23, same result: 94-95 Mbit/s each, with a total of ~190Mbit/s.
So,
with two cables in the trunk (no matter wich ones) i get 94-95 Mbit/s each, with a total of ~190Mbit/s.
with all three cables in trunk i get 40-50 Mbit/s each, with a total of ~94 Mbit/s.
Any ideas on what could be causing this behaviour?
/K
#uplink#2610-24#performance#Trunk