From: Jay.Hanke@alltel.com
Date: Mon Oct 08 2007 - 12:54:33 ART
If I understand correctly groups not matching the RP group access left
will fail back to dense-mode unless otherwise allowed.
The example is supposed to have an RP that can support 3 blocks of
groups
224/8 and 227/8 as bidirectional
226/8 as only sparse mode only
If you configure sparse mode only, you issue the same command without
the bidirectional. So if I wanted 224/8 and 227/8 to be bidirectional
(and 226/8 as sparse only), wouldn't the config for the RP be as
follows?
Ip multicast-routing
!
Ip pim bidir-enable
!
ip pim rp-address 10.0.1.1 45 bidir
ip pim rp-address 10.0.2.1 46
!
access-list 45 permit 224.0.0.0 0.255.255.255
access-list 45 permit 227.0.0.0 0.255.255.255
access-list 46 permit 226.0.0.0 0.255.255.255
If the example from Cisco is correct, how does ios know which ones are
sparse mode and which ones are bidirectional?
Thanks,
jay
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
shiran guez
Sent: Monday, October 08, 2007 10:24 AM
To: Hanke, Jay
Cc: ccielab@groupstudy.com
Subject: Re: Bidir-PIM: Example
I don't understand why you expect it to be stripped off?
the bidirectional is configured together with sparse mode, the
bidirectional job is like to be the master of a sparse mode domain to
control several RP's by adding a designated forwarder (DF)
http://www.cisco.com/univercd/cc/td/doc/product/software/ios124/124cg/hi
mc_c/chap05/mcbbasic.htm#wp1080866
On 10/8/07, Jay.Hanke@alltel.com <Jay.Hanke@alltel.com> wrote:
>
> Agreed, but my question is regarding running two RP's on the same
> router, one for Bidirectional and one for Sparse mode. Otherwise, how
> would the routers know to allow upstream traffic for a particular
group?
>
> ------------------------------
> *From:* shiran guez [mailto:shiranp3@gmail.com]
> *Sent:* Monday, October 08, 2007 12:21 AM
> *To:* Hanke, Jay
> *Cc:* ccielab@groupstudy.com
> *Subject:* Re: Bidir-PIM: Example
>
>
> no, when you set a static RP address you must set it on all the
> Multicast Routers inclde the RP himself.
>
>
>
>
> On 10/7/07, Jay.Hanke@alltel.com <Jay.Hanke@alltel.com> wrote:
> >
> > In the bidir-pim example on this page:
> >
> >
> > http://www.cisco.com/univercd/cc/td/doc/product/software/ios124/124c
> > g/himc_c/
> > chap05/mcbbasic.htm#wp1134906
> >
> > The following example is cited with the description saying that
> > group
> > 226/8
> > will be in sparse mode rather than bidirectional mode.
> >
> > !Enable IP multicast routing
> > ip multicast-routing
> > !Enable bidir-PIM
> > ip pim bidir-enable
> > interface loopback 0
> > description One Loopback address for this routers Bidir Mode RP
> > function ip address 10.0.1.1 255.255.255.0 !
> > interface loopback 1
> > description One Loopback address for this routers Sparse Mode RP
> > function ip address 10.0.2.1 255.255.255.0
> >
> > ip pim rp-address 10.0.1.1 45 bidir
> > ip pim rp-address 10.0.2.1 46 bidir
> >
> > access-list 45 permit 224.0.0.0 0.255.255.255 access-list 45 permit
> > 227.0.0.0 0.255.255.255 access-list 46 permit 226.0.0.0
> > 0.255.255.255
> >
> > Shouldn't the ip pim rp-address 10.0.2.1 46 bidir command have the
> > bidir stripped off?
> >
> > Thanks,
> >
> > jay
> >
> >
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>
> --
> Shiran Guez
> MCSE CCNP NCE1
> http://cciep3.blogspot.com
> http://www.linkedin.com/in/cciep3
>
> **********************************************************************
> ******************** The information contained in this message,
> including attachments, may contain privileged or confidential
> information that is intended to be delivered only to the person
> identified above. If you are not the intended recipient, or the person
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-- Shiran Guez MCSE CCNP NCE1 http://cciep3.blogspot.com http://www.linkedin.com/in/cciep3
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