thanks for the tips. The downstream is a bridge, in our case. So it becomes more difficult to know the last member. It probably needs to work with bridge snooping.
Concerning RFC, I can not find any description about this. Because we used to use broadcom platform. It did some trick to the kernel the proxy daemon, not standard, hacking way. > 在 2019年8月10日，09:07，Thomas C. Schmidt <[email protected]> 写道： > > Hi Ke Hu, > > usually, the router does not know whether a leaving node is the last one of > this group. It can know, if it performs explicit tracking of listeners, but > if I remember correctly, this does not work with IGMPv2, since IGMPv2 > listeners suppress join messages if a group is already requested by other > nodes. > > Do you have a pointer to the specification (RFC section) of what you want to > implement? > > Best, > Thomas > >> On 09/08/2019 13:33, kehu wrote: >> thanks for your kindly reply. >> the 'fast leave' ,we would like to delopy in IGMPV2, is when the last >> member in the group sending leave message. the router just sends leave >> message to upstream server without sending any specific >> query to downstream ports and delete the multicast group in the router >> immediately. Although it is supported by our hardware chipset, we would like >> to use software method. >> And if it is not supported by Mcproxy, it is possible to develop a patch to >> the current source code. >> Thanks so much >> ------------------------------------ >> Hi Ke Hu, >> great to hear! >> I'm not sure what you mean by "fast leave". If you refer to the >> IGMPv2/MDLv1 leave signaling (i.e., groups are actively left by clients >> as opposed to timeouts in IGMPv1), this is the standard operation of >> MCProxy. We do not support an IGMPv1-Mode. >> Otherwise I'm not sure what you mean: for the proxy function, RFC >> 4605 says: >> "The proxy device sends IGMP/MLD membership reports on the upstream >> interface when queried and sends unsolicited reports or leaves >> when >> the database changes." >> This is immediate (so fast) and this is what MCProxy should do (unless >> you find a bug). >> Best, >> Thomas >> On 09/08/2019 08:56, Ke Hu wrote: >> > Hey guys, >> > >> > We are using Mcproxy in our openwrt router. It is so fancy and >> stable. >> > But we can not find any feature like 'fast leave'. Is it not >> supported >> > by Mcproxy? or Is there any configure that we can set? >> > >> > BR >> > >> > -- >> > You received this message because you are subscribed to the Google >> > Groups "Multicast Proxy" group. >> > To unsubscribe from this group and stop receiving emails from it, >> send >> > an email to [email protected] <javascript:> >> > <mailto:[email protected] <javascript:>>. >> > To view this discussion on the web, visit >> > >> >> https://groups.google.com/d/msgid/multicast-proxy/AM0PR08MB297776BFE35A5D0CFDF921B0F6D60%40AM0PR08MB2977.eurprd08.prod.outlook.com >> >> <https://groups.google.com/d/msgid/multicast-proxy/AM0PR08MB297776BFE35A5D0CFDF921B0F6D60%40AM0PR08MB2977.eurprd08.prod.outlook.com> >> > >> >> <https://groups.google.com/d/msgid/multicast-proxy/AM0PR08MB297776BFE35A5D0CFDF921B0F6D60%40AM0PR08MB2977.eurprd08.prod.outlook.com?utm_medium=email&utm_source=footer >> >> <https://groups.google.com/d/msgid/multicast-proxy/AM0PR08MB297776BFE35A5D0CFDF921B0F6D60%40AM0PR08MB2977.eurprd08.prod.outlook.com?utm_medium=email&utm_source=footer>>. >> -- Prof. Dr. Thomas C. Schmidt >> ° Hamburg University of Applied Sciences Berliner >> Tor 7 ° >> ° Dept. Informatik, Internet Technologies Group 20099 Hamburg, >> Germany ° >> ° http://inet.haw-hamburg.de/members/schmidt >> <http://inet.haw-hamburg.de/members/schmidt> Fon: >> +49-40-42875-8452 ° >> -- >> You received this message because you are subscribed to the Google Groups >> "Multicast Proxy" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected] >> <mailto:[email protected]>. >> To view this discussion on the web, visit >> https://groups.google.com/d/msgid/multicast-proxy/dd323103-2533-474e-b20c-6ecee9a619f9%40googlegroups.com >> >> <https://groups.google.com/d/msgid/multicast-proxy/dd323103-2533-474e-b20c-6ecee9a619f9%40googlegroups.com?utm_medium=email&utm_source=footer>. > > -- > > Prof. Dr. Thomas C. Schmidt > ° Hamburg University of Applied Sciences Berliner Tor 7 ° > ° Dept. Informatik, Internet Technologies Group 20099 Hamburg, Germany ° > ° http://inet.haw-hamburg.de/members/schmidt Fon: +49-40-42875-8452 ° > > -- > You received this message because you are subscribed to the Google Groups > "Multicast Proxy" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web, visit > https://groups.google.com/d/msgid/multicast-proxy/0c214424-01e6-301a-e94e-ea94e579d3b2%40haw-hamburg.de. -- You received this message because you are subscribed to the Google Groups "Multicast Proxy" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/multicast-proxy/4C9A7345-AE0C-4DE5-835D-24E627C5D69F%40gmail.com.
