ohhh I see what you are saying (I think so). I was thinking about standard usage of vswitch bridge so a scenario where all guests have real dedicated hipersockets and vswitch has one of these hipersockets as well. This gives hipersocket virtual machines a way to talk to each other (via hipersocket network and shared chpid) plus it gives them access to oustide network via vswitch.
But you are saying (I think) that I could have ONLY vswitch (on all lpars) using the hipersocket bridge port and all the guest have connected to the same vswitch (layer two so oracle should be happy) using virtual qdio nic cards? That sounds very cool. I don't have RACF yet but it will give me a standard vswitch access list control of vlans which is something. In scenario like this, I guess I don't need to specify uplink device for the vswitch so I could keep it all inside of a CEC. I wonder how much how much would it impact performance. Thanks! Gregory 2015-11-20 9:00 GMT-05:00 David Kreuter <dkreu...@vm-resources.com>: > Gregory: It does help. As a VSWITCH it can be protected by RACF hence > the VLANs can be RACF protected too. > Another advantage is that it uses only one hipersocket triplet whereas > dedicated hipersocket will end up using one triplet per Linux virtual. > You can even use the same hiper triplet on each LPAR. > There is a limit to how many LPARs can connect to the hiper. I've been > scalded by this a few times. > David > > > -------- Original Message -------- > Subject: Re: hipersockets > From: Grzegorz Powiedziuk <gpowiedz...@gmail.com> > Date: Fri, November 20, 2015 8:47 am > To: LINUX-390@VM.MARIST.EDU > > Thanks Alan. > HiperSocket VSWITCH Bridge will not help when it comes to isolation, > right? Vswitch simply acts as a bridge for hipersocket network using > using > one of the real hipersocket devices as one of its own interfaces (bridge > port). Via this bridge Hipersocket network gets access to external > network > but doesn't give more control on who can talk to who inside of CEC, does > it? > thanks > Gregory > > > > 2015-11-20 0:47 GMT-05:00 Alan Altmark <alan_altm...@us.ibm.com>: > > > On Thursday, 11/19/2015 at 08:35 GMT, Grzegorz Powiedziuk > > <gpowiedz...@gmail.com> wrote: > > > I thought about doing vswitch but then AFIK I would end up with with > > > virtual hipersockets on linux guest. > > > > Linux guests can use real HiperSockets with the HiperSocket VSWITCH > bridge > > on z/VM. Their traffic will automatically be bridged to a physical LAN > > that can be accessed by z/OS. z/OS doesn't support the HiperSocket > > technology that would let it participate in a direct HiperSocket > > connection with the Linux guests on the bridge. > > > > Alan Altmark > > > > Senior Managing z/VM and Linux Consultant > > Lab Services System z Delivery Practice > > IBM Systems & Technology Group > > ibm.com/systems/services/labservices > > office: 607.429.3323 > > mobile; 607.321.7556 > > alan_altm...@us.ibm.com > > IBM Endicott > > > > ---------------------------------------------------------------------- > > For LINUX-390 subscribe / signoff / archive access instructions, > > send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or > > visit > > http://www.marist.edu/htbin/wlvindex?LINUX-390 > > ---------------------------------------------------------------------- > > For more information on Linux on System z, visit > > http://wiki.linuxvm.org/ > > > > ---------------------------------------------------------------------- > For LINUX-390 subscribe / signoff / archive access instructions, > send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or > visit > http://www.marist.edu/htbin/wlvindex?LINUX-390 > ---------------------------------------------------------------------- > For more information on Linux on System z, visit > http://wiki.linuxvm.org/ > > ---------------------------------------------------------------------- > For LINUX-390 subscribe / signoff / archive access instructions, > send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or > visit > http://www.marist.edu/htbin/wlvindex?LINUX-390 > ---------------------------------------------------------------------- > For more information on Linux on System z, visit > http://wiki.linuxvm.org/ > ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/
