From: Mujeeb Sarwar (mujeebsarwar@gmail.com)
Date: Mon Jun 23 2008 - 10:54:40 ART
Hi,
Yes, this is right behavior. Actually I was forgetting this thing '
Deny statement for group-list does not work at candidate RPs'.
Thanks & Regards,
Mujeeb
On 6/22/08, Paul Cosgrove <paul.cosgrove@heanet.ie> wrote:
> Hi Mujeeb,
>
> The mapping agent should not filter all groups simply because you denied
> a particular group in an "ip pim send-rp-announce <int> <acl>" command.
> Instead it should advertise the permitted and denied groups together;
> "show ip pim rp map" should see a minus in front of the denied range.
>
> If you use a deny statement then, assuming no other C-RP offers to
> service the group, the specified group is treated as a dense mode
> group. If you add a second candidate RP which is willing to act as RP
> for the group, then I think the behaviour you see may depend on the
> router ios versions used. Recent versions accept the second C-RP's
> announcement, but I don't think that used to happen in old 12.2 versions
> (may be wrong though).
>
> There seems to be a little confusion here about what you have
> configured, perhaps if you post your configs and results it may make
> things a little clearer.
>
> Paul.
>
>
> Sadiq Yakasai wrote:
>> Mujeeb,
>>
>> What you are seeing it the expected normal behaviour there.
>>
>> Sadiq
>>
>>
>> _______________________________________________________________________
>> Subscription information may be found at:
>> http://www.groupstudy.com/list/CCIELab.html
>>
>>
> Puneet Kathpalia wrote:
>> Deny statements in an acl associated with the group-list option of ip pim
>> send-rp-announce command does not work. It is well documented in the IEWB
>> COD. Therefore, yes this is normal behavior as deny statements not
>> "allowed"
>> with the group-list option.
>>
>> HTH :)
>>
>> Puneet
>>
> Geert Nijs wrote:
>> All i know is that this command behaves very strangly - against intuition.
>>
>> Use this command with caution. RPs that are matched by rp-list (allowed by
>> a permit statement) have their multicast groups filtered by group-list.
>> RPs that are denied (either by an explicit or implicit deny) are not
>> subject to the filtering of their multicast groups and are "blindly"
>> accepted as candidate RPs for all of their groups. In other words, only
>> RPs that are permitted by rp-list have their multicast-groups filtered by
>> group-list. All other RPs are accepted without examination.
>>
>>
>> regards,
>> Geert
>> CCIE #13729
>>
> Mujeeb Sarwar wrote:
>> Dear Group,
>>
>> I have a query regarding filtering of RP to Group mapping. Let suppose
>> following is the topology,
>>
>>
>> R3 ------- R2 -------- R1
>>
>> R3 & R2 are candidate RPs and R1 is the mapping agent. We have to filter
>> RP
>> to Group mapping at R1 which we can do using rp-announce-filter with
>> rp-list
>> and group-list options at mappping agent and parallely using
>> send-rp-announce with group-list option at candidate RPs.
>>
>> Problem is that if I use deny statement in ACL on candidate RP to filter
>> some specific group and announce all other groups then mapping agent
>> filters
>> all groups regardless of what is pemited/denied on candidate RP.
>>
>> But on the other hand if I use permit statement in ACL on candidate RP to
>> allow specific groups then mapping agent works fine and do specific group
>> mappings.
>>
>> Is this normal behavior or I am missing something ?
>>
>>
>> Regards,
>>
>> Mujeeb
>>
>>
>> _______________________________________________________________________
>> Subscription information may be found at:
>> http://www.groupstudy.com/list/CCIELab.html
This archive was generated by hypermail 2.1.4 : Tue Jul 01 2008 - 06:23:22 ART