[c-nsp] Microsoft multicasted cluster vs. Cisco IOS

[Olav Langeland]

As M$ says it: "Windows Clustering provides three different, but
complementary, clustering technologies"
(http://www.microsoft.com/technet/prodtechnol/windowsserver2003/library/
ServerHelp/358b9815-3cd3-4912-a75a-cae85ea8d5ab.mspx), most used are: 
1. Network Load Balancing clusters. 
or
3. Server clusters. Which basically is an active/passive clustering
technology.

I havent used MS clustering enough to answer, but these articles might
help:
http://www.microsoft.com/technet/prodtechnol/windowsserver2003/library/D
epKit/aa15cdd3-7ac5-4846-904e-4ff282f8e7f1.mspx
http://support.microsoft.com/default.aspx?scid=kb;en-us;307962

-olav


> -----Original Message-----
> From: christian.macnevin at uk.bnpparibas.com 
> [mailto:christian.macnevin at uk.bnpparibas.com] 
> Sent: 07. november 2005 10.37
> To: olivier.dauby at scarlet.be
> Cc: cisco-nsp-bounces at puck.nether.net; cisco-nsp at puck.nether.net
> Subject: Re: [c-nsp] Microsoft multicasted cluster vs. Cisco IOS
> 
> I'm told by someone who purports to know a bit about Microsoft that 
> microsoft clustering service != Network Load Balancing. Don't
> ask me, I just poke the routers.
> 
> The tech note seems to be specific to NLB. So does it hold 
> true for both 
> services? Anyone?
> 
> Cheers
> Christian 
> 
> 
> 
> 
> 
> Internet
> olivier.dauby at scarlet.be
> Sent by: cisco-nsp-bounces at puck.nether.net
> 04/11/2005 17:11
> 
> To
> cisco-nsp
> cc
> 
> Subject
> Re: [c-nsp] Microsoft multicasted cluster vs. Cisco IOS
> 
> 
> 
> 
> 
> 
> Brett Looney wrote:
> > At 00:44 5/11/2005, you wrote:
> >
> >>The Microsoft cluster is supposed to listen on a virtual ip address
> >>using a multicast mac address. Local users see the virtual ip of the
> >>cluster (10.106.49.6) with a mac address 03:BF:0A:6A:31:06. I'm
> >>already a bit confused here since I expected the multicast mac
> >>address to begin with 0x01 instead of 0x03.
> >>
> >>The routers also seem to be confused, they have been unable to learn
> >>this mac address as you can see in this 'show arp' output:
> >>
> >>I quickfixed this with a dirty 'arp' command on both routers:
> >>
> >>        arp 10.106.49.6 03BF.0A6A.3106 arpa
> >
> >
> > Yeah - there is a MS technote about this (can't find it right
> > now...). Routers won't learn a multicast MAC address for a 
> unicast IP
> > address. You've done exactly what they suggest...
> >
> > B.
> 
> Oh I see,
> 
> http://www.microsoft.com/technet/prodtechnol/windowsserver2003
> /library/ServerHelp/fdcd461f-0fd6-4164-928f-6f1841fdc27d.mspx
> 
> 
> Thanks for your support,
> 
> O.
> 
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