From: Cham (chamandeep.gill@gmail.com)
Date: Sat Dec 10 2005 - 21:11:42 GMT-3
OK thanks, that make sense now.
Also, will all the CoD lectures be getting updated or just some of them?
Thanks,
Cham
On 12/10/05, Brian Dennis <bdennis@internetworkexpert.com> wrote:
> In the newest version (Jan 2006 changes) of the IEATC-RS Class-on-Demand
> we cover filtering with AutoRP in detail. In fact we cover this exact
> same scenario along with other issues with filtering and AutoRP. I also
> explained the issue with the scenario listed below in a previous e-mail.
>
> HTH,
>
> Brian Dennis, CCIE #2210 (R&S/ISP-Dial/Security)
> bdennis@internetworkexpert.com
>
> Internetwork Expert, Inc.
> http://www.InternetworkExpert.com
> Toll Free: 877-224-8987
> Direct: 775-745-6404 (Outside the US and Canada)
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Godswill Oletu
> Sent: Saturday, December 10, 2005 2:23 PM
> To: Schulz, Dave; Cham
> Cc: nobody@groupstudy.com; Cisco certification
> Subject: Re: rp-announce-filter
>
> It is possible that Cham's confusion is an extension from a section
> delivered by one of the CCIE learning providers. I have heard that
> before
> and in that lecture, it was indicated that if the groups the cRP is
> presenting to the MA are not exactly the same as what is configured on
> the
> MA for that particular cRP, the MA will ignore even matching group
> requests
> from that cRP, ie it must be 100% or nothing.
>
> What Cham's lab helped to clear up is that, the filter list on the MA
> represent the global set of groups that each cRP can represent, it is
> then
> up to the cRP (depending on the filter list configured on each cRP) to
> request representaion for all the groups allowed by the MA for that cRP,
> or
> a subset of those groups.
>
> -Godswill
>
>
> ----- Original Message -----
> From: "Schulz, Dave" <DSchulz@dpsciences.com>
> To: "Cham " <chamandeep.gill@gmail.com>
> Cc: <nobody@groupstudy.com>; "Cisco certification "
> <ccielab@groupstudy.com>
> Sent: Saturday, December 10, 2005 4:33 PM
> Subject: RE: rp-announce-filter
>
>
> > I understand what you are saying, Cham. I don't have the IE workbook,
> but
> > thinking like the router...I would assume that it works like you
> mentioned
> in
> > the second paragraph. However, maybe one of the experts on GS can
> comment.
> > This is a great subject.
> >
> > Dave
> >
> > -----Original Message-----
> > From: Cham
> > To: Schulz, Dave
> > Cc: nobody@groupstudy.com; Cisco certification
> > Sent: 12/10/2005 1:32 PM
> > Subject: Re: rp-announce-filter
> >
> > Dave
> >
> > Looking at the explanation given in the IE solutions guide, my
> > understanding is that the RP has to request precisely what the MA is
> > filtering the RP for. If they don't match the MA will not map the RP
> > to any group It all or nothing??
> >
> > R8 is asking to be the RP for two groups 228 and 229, but the MA is
> > saying I have you down only for 229. So, my understanding it that as
> > this does not match precisely what the MA is mapping. R8 should not be
> > the RP for anything. But instead what I see is that it is mapping only
> > for the group they do agree on?? 229??
> >
> > I suppose I need a sanity check is this expected behavior??
> >
> > Thanks
> >
> >
> > On 12/10/05, Schulz, Dave <DSchulz@dpsciences.com> wrote:
> > >
> > >
> > > Cham -
> > >
> > > I believe that everything is working as it should with your R8
> > RP....as it
> > > is allowing the 229 group and filtering the 228 from this specific
> RP.
> > Are
> > > you expecting a different result?
> > >
> > > Dave
> > >
> > > -----Original Message-----
> > > From: nobody@groupstudy.com
> > > To: Cisco certification
> > > Sent: 12/10/2005 8:35 AM
> > > Subject: RE: rp-announce-filter
> > >
> > > Hi group,
> > >
> > > Just looking for some clarification on the ip pim
> rp-announce-filter
> > > command.
> > >
> > > R8-----------R10-------------R9
> > >
> > > R8
> > > ip pim send-rp-announce Loopback0 scope 16 group-list 20
> > > !
> > > access-list 20 permit 228.0.0.0 0.255.255.255
> > > access-list 20 permit 229.0.0.0 0.255.255.255
> > >
> > > R10
> > > ip pim send-rp-discovery Loopback0 scope 16
> > > ip pim rp-announce-filter rp-list R9_as_RP_only group-list 20
> > > ip pim rp-announce-filter rp-list R8_as_RP_only group-list 30
> > > !
> > > !
> > > ip access-list standard R8_as_RP_only
> > > permit 150.1.8.8
> > > ip access-list standard R9_as_RP_only
> > > permit 150.1.9.9
> > > access-list 20 permit 225.0.0.0 0.255.255.255
> > > access-list 20 permit 226.0.0.0 0.255.255.255
> > > access-list 30 permit 229.0.0.0 0.255.255.255
> > >
> > > R9
> > > ip pim send-rp-announce Loopback0 scope 16 group-list 10
> > > !
> > > access-list 10 permit 225.0.0.0 0.255.255.255
> > > access-list 10 permit 226.0.0.0 0.255.255.255
> > >
> > > I also have sparse-dense-mode on all ints and loopbacks. When R9 is
> > > requesting to be the RP for groups in ACL 10 and R10 is permitting
> R9
> > > as the RP for the groups for ACL 20 this works fine as I
> expected.
> > >
> > > My understanding is that if the RP is not requesting the same as
> what
> > > the MA is filtering the MA will discard all requests from the RP?
> By
> > > the "same" I mean nothing more - nothing less?? What I see is that
> R8
> > > is requesting to be the RP for groups in ACL 20 and the MA
> permitting
> > > R8 to be the RP for only some of the groups it is asking for?
> > >
> > > What I then see is the MA accepting this and just filtering the
> > > 228.0.0.0/8 group as this is no permitted within the R10s ACL30 I
> > > thought that this should not happen R10 should drop all requests
> from
> > > R8 as they do not match with what it is filtering?? I am trying to
> > > understand IE lab 5 tasks 7.1.-7.6?
> > >
> > > *Dec 10 13:23:05.295: Auto-RP(0): Received RP-announce, from
> > > 150.1.8.8, RP_cnt 1, ht 181
> > > *Dec 10 13:23:05.295: Auto-RP(0): Filtered 228.0.0.0/8 for RP
> > 150.1.8.8
> > > *Dec 10 13:23:05.295: Auto-RP(0): Update (229.0.0.0/8,
> RP:150.1.8.8),
> > > PIMv2 v1
> > > *Dec 10 13:23:05.295: Auto-RP(0): Received RP-announce, from
> > > 150.1.8.8, RP_cnt 1, ht 181
> > > *Dec 10 13:23:05.295: Auto-RP(0): Filtered 228.0.0.0/8 for RP
> > 150.1.8.8
> > > *Dec 10 13:23:05.295: Auto-RP(0): Update (229.0.0.0/8,
> RP:150.1.8.8),
> > > PIMv2 v1
> > > R10#sh ip pim
> > > *Dec 10 13:23:11.739: Auto-RP(0): Received RP-announce, from
> > > 150.1.9.9, RP_cnt 1, ht 181
> > > *Dec 10 13:23:11.739: Auto-RP(0): Update (225.0.0.0/8,
> RP:150.1.9.9),
> > > PIMv2 v1
> > > *Dec 10 13:23:11.739: Auto-RP(0): Update (226.0.0.0/8,
> RP:150.1.9.9),
> > > PIMv2 v1
> > > *Dec 10 13:23:11.739: Auto-RP(0): Received RP-announce, from
> > > 150.1.9.9, RP_cnt 1, ht 181
> > > *Dec 10 13:23:11.739: Auto-RP(0): Update (225.0.0.0/8,
> RP:150.1.9.9),
> > > PIMv2 v1
> > > *Dec 10 13:23:11.739: Auto-RP(0): Update (226.0.0.0/8,
> RP:150.1.9.9),
> > > PIMv2 v1
> > > *Dec 10 13:23:12.463: Auto-RP(0): Build RP-Discovery packet
> > > *Dec 10 13:23:12.463: Auto-RP: Build mapping (225.0.0.0/8,
> > > RP:150.1.9.9), PIMv2 v1,
> > > R10#sh ip pim r
> > > *Dec 10 13:23:12.463: Auto-RP: Build mapping (226.0.0.0/8,
> > > RP:150.1.9.9), PIMv2 v1.
> > > *Dec 10 13:23:12.463: Auto-RP: Build mapping (229.0.0.0/8,
> > > RP:150.1.8.8), PIMv2 v1.
> > > *Dec 10 13:23:12.463: Auto-RP(0): Send RP-discovery packet on
> > > GigabitEthernet4/0/0 (2 RP entries)
> > > *Dec 10 13:23:12.463: Auto-RP(0): Send RP-discovery packet on
> > > FastEthernet0/0/0 (2 RP entries)
> > > *Dec 10 13:23:12.463: Auto-RP: Send RP-discovery packet on
> Loopback0
> > > (2 RP entries)
> > >
> > > Thanks,
> > > Cham
> > >
> > >
> >
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