Re: Multicast Routing Performance
Ahh! I am doing some testing of multicast video streaming. It streams a single 8Mbps stream fine but if I add another to it the throughput just falls away for both streams. Am I asking too much to stream approx 16Mbps? I kinda thought that 100Mbps NICs and a PIII would handle it. I don't suppose there are any settings I can tweak? cheers Gavin --- Olivier Nicole <[EMAIL PROTECTED]> wrote: > > Does any one have any experience of using a > FreeBSD > > Box as a multicast router? > > > > I have a PIII 800Mhz with two 100Mbps NICS, what > kind > > of throughput can I expect to get out of this > setup? > > We have been doing that for years. > > But don't expect too much speed with a PIII 800, we > usually have > something like 10Mbps brust traffic. > > Olivier __ Yahoo! Plus - For a better Internet experience http://uk.promotions.yahoo.com/yplus/yoffer.html ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: Multicast Routing Performance
> Does any one have any experience of using a FreeBSD > Box as a multicast router? > > I have a PIII 800Mhz with two 100Mbps NICS, what kind > of throughput can I expect to get out of this setup? We have been doing that for years. But don't expect too much speed with a PIII 800, we usually have something like 10Mbps brust traffic. Olivier ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: Multicast Routing Performance
On Tue, 3 Jun 2003 14:18:25 +0100 (BST) Gavin Kenny <[EMAIL PROTECTED]> wrote: > Does any one have any experience of using a FreeBSD > Box as a multicast router? > > I have a PIII 800Mhz with two 100Mbps NICS, what kind > of throughput can I expect to get out of this setup? > >From my past experiences, and given a P90 with 8mb of RAM capable of routing 4 different 2mbit lines with 4 different nicks without a glitch, I can say that your hardware can perform up to wire's maximum capacity. Maybe it depends on what else other than routing services you have to run on that machine, but I don't think that would be a problem. Ciao ciao -- Stucchi Massimiliano | Gruppo Utenti FreeBSD Italia WillyStudios.com | http://www.gufi.org [EMAIL PROTECTED] | [EMAIL PROTECTED] "People who make no mistakes do not usually make anything" ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: Multicast Routing Table Modification
> 1. pick up the multicast packets before they are routed in the kernel That would not be a "clean" way to do it, but if you want to concentrate on your routing module, why not using a firewall to do the pick-up/redirection of the packets? I read that IPF has a way to write rules that will redirect the packet to a user program. Olivier ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: Multicast Routing
Usually multicast groups are joined on a multicast address. On Ethernet there is a mapping between multicast addresses and multicast ethernet addresses and if the ethernet card is well behaved, filters only those multicast ethernet addresses, and the IP stack filters the multicast IP address that are wanted. For multiple ethernet cards on one machine, a multicast routing program such as pimd (PIM) or mrouted (DVMRP) is usually used, and it forwards data when a remote client joins a multicast group (address). You sound like you want to static route the multicast traffic. I have seen default multicast routes, but have not done static multicast routes. I would not suggest you do port based routing, it will turn your multicast into broadcasts. --Mark Tinguely To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-questions" in the body of the message
