Inline On Mon, May 13, 2019 at 9:53 AM kevin-chiang <kevin-chiang@looptelecom.com> wrote:
Dear developers,
We have some questions about pimd:
1. I see some IGMP related code in pim folder and also see the following description in README:
In order to deliver end-to-end multicast routing control
plane, qpimd includes the router-side of IGMPv[2|3] (RFC 3376).
è Does it means FRR totally compliance with RFC3376??
I did not do the igmpv[2|3] work in pim, but I believe it is compliant.
2. If user has its own IGMP daemons to handle IGMP packets and then install multicast route to kernel.
Does FRR pimd can work with this without enable its IGMP feature? Or you will suggest user to use FRR IGMP to work with FRR pimd.
This makes no sense from a linux perspective. The linux kernel only allows 1 pim socket to be opened.
3. How pimd retrieve the multicast route change information from zebra? It seems pimd doesn’t register such handler to zebra server.
The netlink bus is pretty much only used for mroute dissemination. In order to add/remove routes as well as receive proper pim dataplane/controlplane interactions the pim kernel socket is necessary. Pim can request data from the kernel via the netlink bus and does so via the ZEBRA_IPMR_ROUTE_STATS but that is all.
4. Does FRR have any plan to support MLD in the near future?
I am not aware of anyone currently working on this feature nor am i aware of it being planned on working on. Not to say that someone may or may not be? donald
Please guide us
Thanks a lot
BRs
Kevin
Loop Telecommunication International <http://www.looptelecom.com/>
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