Re: [LARTC] bonding & vlan - kernel 2.4.18 (RHL7.3)

["Ivan A. Beveridge" <ivan@dreamtime.org>]

On Sat, Jun 22, 2002 at 05:10:06PM -0700, William L. Thomson Jr. wrote:
> On Sat, 2002-06-22 at 15:07, Ivan A. Beveridge wrote:

> > However, I'm looking to use a dual gig card (something like a SysKonnect 
> > SK-9844), with the ports bonded, and then running vlans over the resulting 
> > bonded channel.
> 
> Your original post did not mention that. You mentioned a dual Intel nic.

Apologies - it was mentioned in passing (not stating the model of 1000BaseT 
[actually that was wrong? they would be fiber]) cards). I made the 
assumption (oops ;) that whatever worked with 2+ 100BaseTX would work with 
other cards (eg ifenslave/bonding + vlan).


> Either way if you have one Intel nic you may still be able to achieve
> what you want. IANS does support gigabit but all cards in the group must
> be the same speed. No mixing 100's with 10's or 1000's. All 100's all
> 10's or all 1000's.

The reason for the syskonnect (prob. SK-9844) is that it is dual-gige fiber
(for higher port-density). I've not seen any other dual-gige cards, and 
have used these in "normal" use successfully.


> > WRT channel bonding, I was using ifenslave (using redhat's ifcfg- scripts 
> > and the bonding module), although I see there is an 'ethernet link 
> > aggregation' (802.3ad) driver, which the syskonnect help seems to point to:
> > 	http://www.st.rim.or.jp/~yumo/#veth
> > I've no idea what the difference is between this and bonding.
> 
> Correct me if I am wrong, but ifenslave is a tool from the Beowulf
> project.

It's (now) in the "iputils" package that includes ping, tracepath, rdisc, 
ping, etc. The RedHat rc scripts will use ifenslave, if you have the 
relevant entries in /etc/sysconfig/network-scripts/ifcfg-* (MASTER / SLAVE 
etc entries).

> I remember downloading it and trying to get it to work in my
> RaQ XTR. But I could not. All the info was duplicated, IP, subnet, etc.
> All looked good from ifconfig, but did not work like IANS, or at all.
> Only one interface was working.

As I mention, I have not actually tried to burst > 1 interface worth of 
bandwidth with it, but traffic went across. As you say, possibly only 1 
interface.


> > Anyway (hopefully not pushing my luck too much here :) anyone used the 
> > syskonnect with some kind of channel bonding/aggregation and vlans?
> 
> No, may be with the card you want to use. But otherwise it should be
> something that can be done.

Yeah - the page says it can, with the external software mentioned (vlan and 
the 802.3ad stuff). Perhaps I'll try to give that a go, but would be 
interested to hear from anyone who has a working generic solution with any 
cards (or SK-9844 in particular).

Silly timescales :(

Many thanks for the information William/Bill - I'll have a look at that 
IANS stuff, as I'm sure I'll need multi-port aggregation on EEPro100s at 
some point soon :^)


Ivan
-- 
Ivan Beveridge	<ivan@dreamtime.org>
		<ivan@dreamtim.demon.co.uk>
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