The stack has to have this capability.   AFAIK, only Linux can do this.

 

 

Frank M. Ramaekers Jr.

 

 

________________________________

From: The IBM z/VM Operating System [mailto:ib...@listserv.uark.edu] On
Behalf Of Billy Bingham
Sent: Tuesday, August 31, 2010 9:32 AM
To: IBMVM@LISTSERV.UARK.EDU
Subject: Re: VSWITCH defined VSE TCP/IP fails

 

What makes this a Layer-3 VSWITCH vs a Layer-2?

 

 

Thanks,

 

Billy

 

On 31 Aug 2010 at 9:04, Frank M. Ramaekers wrote:

 

> 

>     No problem.

>     

>     Originally, I had on z/VSE machine with 3 addresses used for
TCP/IP. I wished to move this to a 

>     layer-3 VSWITCH for redundancy purposes. (Much of the following
was derived from the IBM 

>     Redbook "Linux on IBM eserver zSeries and S/390: VSWITCH and VLAN
Features of z/VM 4.4")

>     

>     

> 1)Define the VSWITCH

> a.define vswitch vswitchname rdev ccuu1 ccuu2 ccuu3

> b.-and- add the same statement to 'SYSTEM CONFIG'file

>     (Remember ccuu1 ccuu2 ccuu3 represent a set of 3 address to be
used)

> 2)Granting access to the VSWITCH

> a.set vswitch vswitchname grant userid

> b.-and- add Modify VSwitch vswitchnameGRAnt userid to 'SYSTEM CONFIG'

> c.- or - add the set vswitch command in the AUTOLOG1 startup

> 3)Defining the simulated NICs

> a.for userid cmd define nic ccuu4 qdio

> b.-and- add to the directory for userid:

>     NICDEF ccuu4 TYPE QDIO DEVICES 3

>     (a above can be skipped, but the userid would have to be logged
off then on)

> 4)Attaching the simulated NIC with couple ccuu4 to system vswitchname

>     (This will need to be performed each time the virtual machine is
logged on.)

>     

>     (Don't think I missed anything)

>     

> 

> Frank M. 

> Ramaekers Jr.

> 

> 

>     

> 

> 

>     From: The IBM z/VM Operating System
[mailto:ib...@listserv.uark.edu] On Behalf Of 

>     Billy Bingham

>     Sent: Tuesday, August 31, 2010 7:51 AM

>     To: IBMVM@LISTSERV.UARK.EDU

>     Subject: Re: VSWITCH defined VSE TCP/IP fails

> 

>     

>     Frank,

>     

>     Would you be willing to share the steps you used to create the
VSWITCH?

>     

>     

>     Thanks,

>     

>     Billy

>     

>     On 30 Aug 2010 at 8:11, Frank M. Ramaekers wrote:

>     

>     > 

>     >Thanks, that helps....the difference between an upCOUPLEd and a 

>     COUPLEd 

>     >VSWITCH:

>     >

>     >UnCOUPLEd:

>     >AR 0015 MAC: 02-00-01-00-00-0E LAN: * NoneMFS: 

>     >8992

>     >

>     >COUPLEd (and not yet initialized):

>     >AR 0015 MAC: 02-00-01-00-00-0E VSWITCH: SYSTEM VSWAILT 

>     >

>     >...and initialized:

>     >* cp q v nic aa0 

>     >details

>     >AR 0015 Adapter 0AA0.P00 Type: QDIO Name: UNASSIGNED Devices: 

>     >3 

>     >AR 0015 MAC: 02-00-01-00-00-0E VSWITCH: SYSTEM 

>     >VSWAILT 

>     >AR 0015 RX Packets: 49 Discarded: 0 Errors: 

>     >0 

>     >AR 0015 TX Packets: 42 Discarded: 0 Errors: 

>     >0 

>     >AR 0015 RX Bytes: 2450 TX Bytes: 

>     >2884 

>     >AR 0015 Connection Name: Session 

>     >Established

>     >AR 0015 Device: 0AA0 Unit: 000 Role: CTL-

>     >READ 

>     >AR 0015 Device: 0AA1 Unit: 001 Role: CTL-

>     >WRITE 

>     >AR 0015 Device: 0AA2 Unit: 002 Role: DATAvPort: 0065 

>     >Index:

>     >0065

>     >

>     >AR 0015 Options: 

>     >IPv4 

>     >AR 0015 Unicast IP Addresses: 

>     >

>     >AR 0015 10.1.20.2MAC: 02-00-01-00-00-

>     >0E 

>     >AR 0015 1I40I READY 

>     >

>     >

>     >Thanks Alan!

>     >

>     >

>     >Frank M. Ramaekers Jr.

>     >

>     >

>     >

>     >-----Original Message-----

>     >From: The IBM z/VM Operating System 

>     [mailto:ib...@listserv.uark.edu] On 

>     >Behalf Of Alan Altmark

>     >Sent: Friday, August 27, 2010 3:33 PM

>     >To: IBMVM@LISTSERV.UARK.EDU

>     >Subject: Re: VSWITCH defined VSE TCP/IP fails

>     >

>     >On Friday, 08/27/2010 at 04:28 EDT, "Frank M. Ramaekers" 

>     ><framaek...@ailife.com> wrote:

>     >> * cp q v nic aa0 details

>     >> 

>     >> AR 0015 Adapter 0AA0.P00 Type: QDIOName: UNASSIGNED Devices: 3

>     >> AR 0015 MAC: 02-00-01-00-00-0ELAN: * None 

>     >

>     >And there you have it. The adapter is not COUPLED, as indicated
by 

>     the 

>     >"* 

>     >None". An uncoupled NIC is the equivalent of an unplugged
ethernet 

>     >cable.

>     >

>     >Alan Altmark

>     >z/VM Development

>     >IBM Endicott

>     > 

>     >_____________________________________________________ This
message 

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>     distribution, 

>     >or use of the contents of this message is strictly prohibited. If
you 

>     >have received this in error, please destroy it immediately and
notify 

>     us 

>     >at privacy...@ailife.com. 

>     

>     

> 

> _____________________________________________________ This message 

> contains information which is privileged and confidential and is
solely 

> for the use of the intended recipient. If you are not the intended 

> recipient, be aware that any review, disclosure, copying,
distribution, 

> or use of the contents of this message is strictly prohibited. If you 

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us 

> at privacy...@ailife.com. 

 

  


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