On Tue, 2008-01-15 at 13:39 -0500, Rick Truett wrote: > Brad, You are required to specify OSA addresses with a VSWITCH> The > VSWITCH is as extension of your real network switch. First define the > VSWITCH with valid OSA addresses. Then how do the Linux guests > connect/route the packets through the Linux router guest? > > An example with IP addresses will help debug your situation. >
Here's an example: Guests Linux01 and Router01 are both connected to VSWITCH vsw1. Router01 has connections to 2 other VSWITCHes, vsw2 and vsw3. Both vsw2 and vsw3 are on different subnets, and both have connections to the external network. The goal is to ping the outside from Linux01, using Router01 as a gateway (static links are setup on Router01). Both vsw2 and vsw3 have PRIrouter set, but vsw1 doesn't (this is the one without real OSA attached). The network folks say the ping is leaving the OSA, and the reply is sent back. However, the reply isn't making it back to Linux01. Router01 can ping the outside okay. 'q vswitch vsw1' confirms there are tons of packets under 'Discarded', which led me to investigate the PRIrouter setting on vsw1. Currently testing the following setups: Attach an OSA to vsw1, so the PRI setting takes effect Replace vsw1 with a GuestLAN or layer2 VSWITCH -Brad > Brad Hinson wrote: > > Hi, > > > > On z/VM 5.2, I'm defining a VSWITCH as a primary router because I have a > > Linux guest performing the routing. When I do not define an OSA triplet > > (no RDEV specified), the PRI option has no effect. Even I perform 'cp > > set vswitch vsw1 pri', a VSWITCH query returns NONROUTER. However, once > > I define an RDEV, query then returns PRIROUTER. > > > > I assume the routing options don't take effect unless there's an > > external OSA interface defined. Is this true? If so, does the VSWITCH > > act in NONROUTER or PRIROUTER mode before the OSA is defined? > > > > The goal is to send packets to another network through the Linux router > > attached to this VSWITCH, but the VSWITCH seems to discard these packets > > as if NONROUTER were set. Is this a case where a GuestLAN is a better > > fit than a VSWITCH with no external interface? > > > > Thanks, > > -- > > Brad Hinson <[EMAIL PROTECTED]> > > Sr. Support Engineer Lead, System z > > Red Hat, Inc. > > (919) 754-4198 > > > > ---------------------------------------------------------------------- > > 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 -- Brad Hinson <[EMAIL PROTECTED]> Sr. Support Engineer Lead, System z Red Hat, Inc. (919) 754-4198 ---------------------------------------------------------------------- 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
