Drew,

Got a little ahead of myself.

Yes you would have to create 3 vifs, first 2 combining the two ports on each switch and then the 3rd vif to combine them all.

Are you trying for a little load balancing as well? We essentially have just single vifs going to 2 ports on different switches and at most you lost a few pings when one port goes down and it switches to the other port.

Regards,

Phil Dean IBS/PBS Data Storage Support Institutional and Business Systems Premium Business Services

Level 5, 48 Martin Place Sydney, NSW 2000 * 02 9378-5988 Fax: 02 9378-5202 Mob: 0407 478 695

* deanph@cba.com.au

-----Original Message----- From: drew.odonnell@americas.bnpparibas.com [mailto:drew.odonnell@americas.bnpparibas.com] Sent: Tuesday, 15 March 2005 10:42 AM To: toasters@mathworks.com Subject: Multimode VIF

I just picked up a few netapps and I was looking to create some VIFS I have not done before. Basically I have two of the new dual GB cards one in slot 4 and the other in slot five. I would like some ideas since I have only historically done single mode VIFS (1 port per card) like the following: vif create single trunk1 e4 e5 vif favor e4 ifconfig trunk1 x.x.x.x netmask 255.255.255.0 wins route add default x.x.x.x 1

What I want to do is a multimode using the 2 dual cards, each one going to separate switches (2 connections per card - per switch). Unfortunately from what I understand, the Cisco 6509 does not support Active Active trunk groups across 2 different switches. We can however have an active active trunk created between 2 ports on the same switch.

So I would like to have 1 dual card go to one switch (On two different blades), and the send the other two to another switch. I would like 2 of the 4 ports transmitting/receiving under 1 virtual address. Essentially, most of the switch failures I have seen are logical, on the port or blade. In this event the netapp does not failover. My thoughts are if I go on 2 different blades on the same switch, and I have both cards transmitting, and receiving, then if I lose one port or blade, I will have another card.

If we lose the whole switch,then we would failover to the secondary VIF.

Do I create 2 different VIFS, and then create a 3rd VIF, (Essentially viffing the VIFS)

I am sure I am not the first to head down this road, so any helpful advice would be great, I am not finding to much on the NOW site.

Thanks Drew

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