On Fri, 19 Mar 1999 14:55:46 EST, Paul Taylor wrote:
I am installing quad fast ethernet cards in my F330 and F630 filers.
- What version of ON-TAP should the filers be running?
- What configurations issues should I be aware of, and how are multipule default gateways configured?
Assuming that you are running a quad card so that you can touch four different subnets...
We ran with a quad card in our F520 with 4.something (I forget now, we're currently at 5.2.1) for a year w/o any problems with that.
You only have one "default gateway". Let's see if I can sum up why without oversimplifying:
The kernel maintains a list ("routing table") of 'what goes where' when a packet has to go out. It would be prohibitively expensive memorywise to know the exact path ("route") that each packet had to take for each arbitary machine in your machine's IP world (usually the internet so that your autosupport mail makes it to netapp.com).
To simplify things (and allow failover routing to function), the routing table only keeps a list of immediate networks and destinations (and hand-entered routes), and one place to send "everything else" that it doesn't know directly.
This is the "default gateway".
ok, sorry for the "TCP/IP Networking 101" class, but I thought it would help.
With that in mind, things are very simple. If you already have a "default gateway" set up because of your single card, you probably don't have to change it. Just assign ip addresses for each of the ports on the quad card that you're going to use, wire them up, and boot (OS rev issues aside).
fwiw, we tried to 'load balance' two ports by giving them different ip addresses on the same subnet and letting solaris automounter on each of the client boxes "choose the shortest path". It didn't work out as well as we had hoped, we're not hitting near 25% capacity on either of the two ports (mmm, mrtg).
-- Rob ---------------------------------------- Rob Windsor E-Mail - mailto:windsor@adc.com Senior Unix Systems Administrator Voice - phone:972-680-6919 Computer Services Fax - phone:972-680-0370 Business Broadband Group ADC Telecommunications Richardson, TX 75082