I will leave the more complex L2/L3 question to someone more enlightened than me. But I am in the clear about Link Aggregation (I wasn't until recently, but support straightened me out) LA requires exlusivity, meaning ONE triplet in ONE lpar having access, an nothing else. Which is not as bad as it sounds at first. If you need LA for bandwidth, it sure makes no sense to put more load on the ports involved from other triplets. So for LA you need to hunt for free ports. Best regards, Pieter Harder [EMAIL PROTECTED] tel +31-73-6837133 / +31-6-47272537
>>> Marcy Cortes <[EMAIL PROTECTED]> 09/07/07 7:39 >>> 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 "This message may contain confidential and/or privileged information. If you are not the addressee or authorized to receive this for the addressee, you must not use, copy, disclose, or take any action based on this message or any information herein. If you have received this message in error, please advise the sender immediately by reply e-mail and delete this message. Thank you for your cooperation." -----Original Message----- From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of Alan Altmark Sent: Thursday, September 06, 2007 9:36 PM To: [email protected] 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 ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 Brabant Water N.V. Postbus 1068 5200 BC 's-Hertogenbosch http://www.brabantwater.nl Handelsregister: 16005077 ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
