From: Ed Man (networkexpert08@gmail.com)
Date: Fri Dec 12 2008 - 11:58:41 ARST
thanks.
On Thu, Dec 11, 2008 at 4:43 PM, Rick Mur <rick@rickmur.com> wrote:
> I guess the books are wrong :-)
>
> The highest IP address wins, when electing a BSR and when electing an RP.
> With Auto-RP there is no way to influence this, only with BSR (PIMv2) you
> can influence this decission by using the 'ip pim dr-priority' command.
>
> Rick Mur
>
> CCIE #21946 (R&S)
>
> CCNP, CCIP, JNCIA-ER, MCSE
>
> rick@rickmur.com
>
> On Wed, 10 Dec 2008 23:51:14 +0800
>
> "Ed Man" <networkexpert08@gmail.com> wrote:
>
> Agree higher BSR address wins
>
> But in my problem, some books said when using bootstrap, pim routers
>
> will
>
> choose the smaller C-RP address as a RP,
>
> my lab shows the pim router use the higher C-RP address as the RP.
>
> Any clues why it is?
>
> On Wed, Dec 10, 2008 at 11:02 PM, Rick Mur <rick@rickmur.com> wrote:
>
> > Auto-RP does the same thing, highest IP address wins.
>
> >
>
> > With BSR you can set the dr-priority to influence this.
>
> >
>
> > Rick Mur
>
> >
>
> > CCIE #21946 (R&S)
>
> >
>
> > CCNP, CCIP, JNCIA-ER, MCSE
>
> >
>
> > rick@rickmur.com
>
> >
>
> > On Wed, 10 Dec 2008 14:57:23 +0000
>
> >
>
> > "Marko Milivojevic" <markom@markom.info> wrote:
>
> >
>
> > BSR will automatically select the one with the higher address.
>
> >
>
> > Take a look at this document:
>
> >
>
> >
>
> >
> http://www.cisco.com/en/US/docs/ios/solutions_docs/ip_multicast/White_papers/rps.html#wp1033721
>
> >
>
> > --
>
> >
>
> > Marko
>
> >
>
> > CCIE #18427 (SP)
>
> >
>
> > My network blog: http://cisco.markom.info/
>
> >
>
> > On Wed, Dec 10, 2008 at 14:47, Ed Man <networkexpert08@gmail.com>
>
> >
>
> > wrote:
>
> >
>
> > > Hi Group,
>
> >
>
> > >
>
> >
>
> > > R7#sho ip pim rp map in-use
>
> >
>
> > > PIM Group-to-RP Mappings
>
> >
>
> > >
>
> >
>
> > > Group(s) 224.0.0.0/4
>
> >
>
> > > RP 10.224.1.2 (?), v2
>
> >
>
> > > Info source: 10.224.1.2 (?), via bootstrap, priority 0, holdtime
>
> >
>
> > >150
>
> >
>
> > > Uptime: 01:16:14, expires: 00:02:07
>
> >
>
> > > RP 10.224.1.1 (?), v2
>
> >
>
> > > Info source: 10.224.1.2 (?), via bootstrap, priority 0, holdtime
>
> >
>
> > >150
>
> >
>
> > > Uptime: 01:17:52, expires: 00:02:11
>
> >
>
> > >
>
> >
>
> > > Dynamic (Auto-RP or BSR) RPs in cache that are in use:
>
> >
>
> > > Group(s): 224.0.0.0/4, *RP: 10.224.1.2*, expires: 00:00:55
>
> >
>
> > >
>
> >
>
> > >
>
> >
>
> > > Don't know why the RP is 10.224.1.2 but not 10.224.1.1?
>
> >
>
> > > Some book said the smallest candidate RP address makes the
>
> >tie-break.
>
> >
>
> > >
>
> >
>
> > > Could you please give me some clues?
>
> >
>
> > Blogs and organic groups at http://www.ccie.net
>
> >
>
> > _______________________________________________________________________
>
> >
>
> > Subscription information may be found at:
>
> >
>
> > http://www.groupstudy.com/list/CCIELab.html
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
>
> Subscription information may be found at:
>
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