LAG Between 6024 and 5324

You can telnet to the switch or connect to the switch serial interface to set access to the CLI.  Login and then from the enable prompt do a "show running-config" which will display your running configuration.  Capture that output and post it here.  Make sure you remove or "xxxx" out any password or IP address you don't want people to see before you post the configuration.

Before you add the port to a LAG you should remove it from any existing VLAN.  However if you did not previously created a VLAN (sounds like it since you said everything is on VLAN 1 which means everything is still on the default VLAN) then you need not worry about this.

Cuong.

How should I get the configurations out from the switch? In what format would you like them posted?

I think the problem is because the port was in a VLAN before it was LAG. If I then added the port to the LAG is it still in the VLAN? What's the best way to remove it from the VLAN? I went to Switch - Vlan - and should I set the VLAN 4095?

Thanks,

Eric

Please post the configuration for both the 6024 and the 5324.  It will help me to understand how things are setup.

A LAG acts just like a logical port so you should lag the ports then configure the LAG as if it was a regular port.  Any configuration you previously have on the port is ignored.  If you currently have not setup any VLAN (since you said all your ports are on VLAN 1 - I'm assuming you have not configured any VLAN) then you should be ok otherwise a port cannot be added to a LAG if it is in a VLAN.

You do have to make sure the interface configuration such as port speed and duplex on the LAG matches on both side (meaning if it is auto-negitiated then it must be so on both side or if it is statically configured then it is configured the same on both side).

Aside from that I don't see anything obviously wrong so you might want to just post your configuration first and I'll see if I can spot anything.

Cuong.

Cuong,

I won't be able to telnet in until tonight since I'm not on location. We would like to setup the switches in the following way:

5324       5324        5324        5324
  |              |               |                |       <- 3 port lag for each uplink 5324
 __________________________
|        One 6024 as core               |
|__________________________|

On the 6024 we have configured 4 x 3 port lags for each connection from the 5324. Is this possible?

Right now I deleted the LAGs, and have just 1 cable uplinking the 5324's to the 6024 and it works fine.

The name on the LAG doesn't matter.  Whether it is access or trunk depends on what you need it to do but I don't think that it describe your problem.  When you say "dynamic MAC" showing up in different LAG, what exactly are you seeing?  I'm not sure I'm clear on what you are describing.  Please post configuration.  It will help to understand how you setup the systems.

Cuong.

I have read and reread that many times. The switches are not passing traffic between the LAGS correctly. In addition the paper is using LCAP and I would rather use LAG. My configuration is so simple yet it doesn't work. Everyone is in one VLAN1. 4 5324's connected to a 6024 using a 3 port LAG. The ONLY setting that is changed is STP is off. There is nothing else in the config.

In your configuration was STP turned off? After I set it up the way you had, i copied the running config to the startup and unplugged and plugged in all the switches.

Another issue I have with the 6024 is that it doesn't turn on. I'm going to call and get it warrantied but, When i plug in both power supply the switch doesn't come on. I swap them, plug in one, and it doesn't turn on. Finally after like 30 tries I get it to turn on. I can't even get lights on the back of the power supplies. I wouldn't be suprised if I have a bad switch.

What number do I call to get a replacement switch.

Cuong,

Please post your config so I can compare. In addition, my problem wasn't one switch getting to the 6024, it was going from one 5324 to the 6024 and then to another 5324. It would go up and down.

Message Edited by grundyv2 on 09-27-2005 11:14 AM

I have just setup the same configuration you described with a LAG containing 3 ports from a 6024 to a 5324.  I am sending continuous packets between two systems connecting to the switches as well as pinging the 5324 and 6024 management IP addresses.  My testing is working perfectly with no drop packets to either the 6024 or the 5324.

Since you said you have nothing configured on your switch, I did likewise and removed all configurations on my switch except for the default configuration.

The "simple" configuration works just fine for me.

Cuong.

I don't understand what you are setting up.  If you could describe your network configuration exactly along with posting your configurations for all your switches I might be able to help you.  As is all I can do is guess what you are doing.

Anyway the command to configure LAG is simple enough.  On the 6024 for example, if you want gigabit ports 17,19,and 21 to be in a LAG 1, you would do this:

• interface range ethernet g17,g19,g21
• channel-group 1 mode on
• exit

You just do something similarly on the 53xx and making sure the LAG interface configuration is the same on both side.  Meaning things like speed, duplex, etc must be the same on both side of the connection.

Cuong.

Yes I turned off STP on the 5324.  If you are in the United States or North America, the # to call is 1-800-822-8965.  For international customers, please contact your appropriate support phone #.  (The User's Guide or Systems Information Guide for the switch should list these).

Cuong,

Can you send me a copy of the configs you have for the LAG.
I have to set this up also, and would like to make sure it is correct.

One of the Dell documents states the following about LAGs:
The following guidelines should be followed when adding ports to a LAG:

* There is no Layer 3 interface defined on the port.

* The port does not belong to any VLAN.

* The port does not belong to any other LAG.

* The port is not a mirrored port.

* The port's 802.1p priority is equal to LAGs 802.1p priority.

* QoS Trust is not disabled on the port.

* GVRP is not enabled.

If I have a LAG setup that needs to pass vlans, it seems that is not possible from above. True or not.

Thanks

Message Edited by StarLog on 10-25-2007 09:17 AM

I understand it now.. The ports should not be a member of a vlan, when you create the channel. Then you add them to the channel, and make them a member of the vlans.
That worked and I tested it today.