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pimd: During prefix-list update, behave as PIM_UPSTREAM_NOTJOINED sta… #17666

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…te (conformance issue)

Issue:
If there are any changes to the prefix list, we perform a re-lookup to map the correct RP for the group. Even if the S,G entry is PIM_UPSTREAM_NOTJOINED and in FHR, In the case of IGMPv3, an S,G entry can be created with no joins. this is not necessary.
https://www.rfc-editor.org/rfc/rfc4601#section-4.5.7 says no op in case of NOTJOINED

Solution:
To solve this issue, Stop RP mapping when the state is NOTJOINED

Ticket: #3496931

…te (conformance issue)

Issue:
If there are any changes to the prefix list, we perform a re-lookup to map the correct RP for the group.
Even if the S,G entry is PIM_UPSTREAM_NOTJOINED and in FHR, In the case of IGMPv3, an S,G entry can be
created with no joins. this is not necessary.
 https://www.rfc-editor.org/rfc/rfc4601#section-4.5.7 says no op in case of NOTJOINED

Solution:
To solve this issue, Stop RP mapping when the state is NOTJOINED

Ticket: #3496931

Signed-off-by: Rajesh Varatharaj <rvaratharaj@nvidia.com>
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ton31337 commented Dec 18, 2024

frrbot styling (and https://ci1.netdef.org/browse/FRR-PULLREQ3-CHECKOUT-6574) please.

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