This is all confusing to me - this layer 2/3 stuff. It was said to be not allowed on the same card. Then not on the same port? Now OK on the same port (given I have the latest and greatest z9 stuff, that's easy - someone else gets to do that)?
Example needed please. I'll give you a little picture but I'm a little
graphically challenged.
Scenario - I have 2 OSA cards. 2 ports on each (duh). One port on each
going to a diff switch.
OSA1
port A ----> switch a
port B ----> switch b
OSA2
port A ----> switch a
port B ----> switch b
VM TCPIP stack has OSA1 portA and OSA2 portB - layer 3 (and some guest LAN,
but that doesn't matter).
VSWITCH Layer 3 has OSA1 portB and OSA2 portA
Can I add a Layer 2 vswitch here without disturbing what's there?
That is, define 1 more vswitch using addresses on OSA1 portB and OSA2 port
A?
Existing VSWITCH Layer 3 def looks like:
Define VSWITCH td6vsw1 rdev f400 f600 vlan 797 porttype trunk
Can I just add the layer 2 one with something like:
Define vswitch td6vsw2 rdev f410 f610 ETHERNET vlan 797 porttype trunk
And then update Linux with *for SLES: QETH_LAYER2_SUPPORT=1 in
/etc/sysconfig/hardware/hwcfg-qeth-bus-ccw-0.0.XXXX
And that'll work??
Or must I come up with some more ports.
Bonus points for explaining how I can get link aggregation involved :)
Marcy Cortes
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-----Original Message-----
From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of Alan
Altmark
Sent: Thursday, September 06, 2007 9:36 PM
To: LINUX-390@VM.MARIST.EDU
Subject: Re: [LINUX-390] VSwitch and IPv6
On Thursday, 09/06/2007 at 10:08 EDT, Robert J Brenneman <[EMAIL PROTECTED]>
wrote:
> Yep - you need Layer2 - Setup the vswitch like Alan mentioned. BUT:
> the
osa
> port can **not** support layer2 & layer3 at the same time.
To the best of my knowledge, all L2-capable OSAs support mixed L2 and L3.
HOWEVER, only z9 with recent microcode allows L2 and L3 to "crosstalk".
Alan Altmark
z/VM Development
IBM Endicott
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