Exactly, with IP based probing, one VSW would go down and your IP's would fail-over to your other VSW. This of course means you have to configure IPMP with IP based probing in each guest domain and that each guest domain consumes atleast 3 IP's. So it would look just like the figure in 5.1 in the admin guide. If link status were propagated to the vsw level and the vnet interfaces in the guest domains registered a link down status, the number of IP's consumed could be reduced.
I also agree that networks should have a default route:) *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* Octave J. Orgeron Solaris Systems Engineer http://www.opensolaris.org/os/community/sysadmin/ http://unixconsole.blogspot.com unixconsole at yahoo.com *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* ----- Original Message ---- From: "TEASDEL, Paul, GBM" <[email protected]> To: Mike Gerdts <mgerdts at gmail.com>; Octave Orgeron <unixconsole at yahoo.com> Cc: Michael.Demuro at sun.com; ldoms-discuss at opensolaris.org Sent: Tuesday, October 30, 2007 12:09:48 PM Subject: RE: [ldoms-discuss] Solaris IPMP w/ LDOMS RE: [ldoms-discuss] Solaris IPMP w/ LDOMS The use of default routers on both primary and guest domains will avoid this. If a default router is in place, IPMP pings this address from both deprecated addresses. With a default router in place, both the guests and primary will realise the link is down and fail the interface over from vsw0 to vsw1 (primary) or vnet0 -> vnet1 (guests). Admittedly, if you've not using a default router then the situation below could occur but not having a default router is normally not an optimal configuration. Regards Paul Teasdel RBS Global Banking & Markets Office: +44 20 7085 1030 -----Original Message----- From: ldoms-discuss-bounces at opensolaris.org [mailto:[email protected]] On Behalf Of Mike Gerdts Sent: 30 October 2007 16:50 To: Octave Orgeron Cc: Michael.Demuro at sun.com; ldoms-discuss at opensolaris.org; TEASDEL, Paul, GBM Subject: Re: [ldoms-discuss] Solaris IPMP w/ LDOMS On 10/30/07, Octave Orgeron <unixconsole at yahoo.com> wrote: > Agreed. The config from 5.1 is the simplest and works well. The What happens if you have several LDOMs on a single machine configured for active(vnet0)/standby(vnet1) and vsw0 in the service ldom loses link? It seems to me that IPMP could be pinging IP addresses that are on other LDOMs on the same physical box and as such all of the LDOMs could be isolated from the network but none of them would detect it. As such, even though the standby interface is available and working, all of the LDOMs would be invisible to any devices outside of the single box. I think that this situation could be highly likely on private subnets that do not have a default route. > The big issue is that both 5.1 and 5.2 consume additional IP's due to > the fact that link status is not propagated up through the VSW's. > If this were corrected, it would make option 5.1 highly effective. Having the link state propogated would be highly desirable. Are there technical limitations that prevent this or has it just not been implemented yet? -- Mike Gerdts http://mgerdts.blogspot.com/ _______________________________________________ ldoms-discuss mailing list ldoms-discuss at opensolaris.org http://mail.opensolaris.org/mailman/listinfo/ldoms-discuss *********************************************************************************** The Royal Bank of Scotland plc. Registered in Scotland No 90312. Registered Office: 36 St Andrew Square, Edinburgh EH2 2YB. Authorised and regulated by the Financial Services Authority This e-mail message is confidential and for use by the addressee only. If the message is received by anyone other than the addressee, please return the message to the sender by replying to it and then delete the message from your computer. Internet e-mails are not necessarily secure. The Royal Bank of Scotland plc does not accept responsibility for changes made to this message after it was sent. Whilst all reasonable care has been taken to avoid the transmission of viruses, it is the responsibility of the recipient to ensure that the onward transmission, opening or use of this message and any attachments will not adversely affect its systems or data. No responsibility is accepted by The Royal Bank of Scotland plc in this regard and the recipient should carry out such virus and other checks as it considers appropriate. Visit our websites at: www.rbs.com www.rbs.com/gbm www.rbsgc.com *********************************************************************************** ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email ______________________________________________________________________ __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.opensolaris.org/pipermail/ldoms-discuss/attachments/20071030/dfc85daf/attachment.html>
