Make sure that your 3550 model of cisco switch supports 9000 byte mtus... there is an asic limitation in some models of that particular switch that doesn't support true jumbo frames.

As for setting up etherchannel...

int portchannel-1 switchport access vlan x switchport mode access no ip address

int g0/1 channel-group 1 mode on

int g0/2 channel-group 1 mode on

I'm assuming your just creating a plain vanilla etherchannel (not layer 3.)

you can also experiment with various loadbalancing algorithms using

port-channel load-balance x

to see which one works best for you.

Regards, Max

-----Original Message----- From: Jason Frank To: Robert Borowicz Cc: toasters@mathworks.com Sent: 7/29/2004 1:27 PM Subject: Re: Cisco settings

We've got the same setup. Make sure you've set your MTU to 9000 on both the NetApp and the clients, and make sure the Cisco is configured for Jumbo frames.

I'd love to know the correct Cisco settings for a multi-mode VIF as well as Flow Control.

Jason

On Jul 29, 2004, at 2:59 PM, Robert Borowicz wrote:

I just got my new Gig-E card on the filer working with our two new Cisco 3550 Gig switches. Anybody care to share your heartburn and/or tuning tips with me?

Thanks

-rob

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