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13743
March 20th, 2006 11:00
Stack 5324
I've run out of ports and want to add another 5324 to my network. I think I can join them with a uplink cable between the switches but that will limit me to 1Gbps throughput between the switches. Do I use link aggregration to increase the throughput between the switches? Any other options?
P.S. I don't have any VLAN's etc. I using it as a dumb switch.
P.S. I don't have any VLAN's etc. I using it as a dumb switch.
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Adam N
2 Intern
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128 Posts
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March 20th, 2006 14:00
You can have up to 8 Link Aggregation Groups (LAGS) with each LAG having up to 8 member ports, so if you wanted it is possible to use all 4 of the combo ports which would give you a theoretical 4Gb LAG. But, I would suggest you read the following white paper before implementing LAGS as they may or may not help your situation, it really depends on your traffic pattern.
Take a look at the following paper which describes exactly how LAGs work, basically LAGS work great for traffic flows between different src/dest MAC's as these flows are distributed between your different LAG member ports but if the traffic flow is always between the same particular src/dst MAC pair then the flow will always use the same 1 member port so your bandwidth would not be increased. The below white paper explains everything in detail.
http://www.dell.com/downloads/global/power/ps2q05-20040286-Holmes-OE.pdf
Thanks
gcrawshaw
2 Posts
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March 20th, 2006 15:00
Adam N
2 Intern
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128 Posts
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March 21st, 2006 08:00
Here is an example below:-
1. At the Privileged Exec prompt, type "configure" and press [Enter] to enter the global configuration mode.
2. Type "interface ethernet g1" and press [Enter] to change to ethernet port configuration mode for port 1.
3. Type "channel-group 1 mode on " to assign port 1 to channel-group 1.
Repeat the above for any ports you want to add to channel-group 1, and thats it.
Hope this helps