Re: [ssm] IPv6 Multicast Throughput problems in 802.11
Toerless Eckert <eckert@cisco.com> Tue, 15 November 2005 15:17 UTC
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Date: Tue, 15 Nov 2005 07:16:55 -0800
From: Toerless Eckert <eckert@cisco.com>
To: Tiago Sousa <tmas@dei.uc.pt>
Subject: Re: [ssm] IPv6 Multicast Throughput problems in 802.11
Message-ID: <20051115151655.GL19539@cisco.com>
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What packet size do you use ? There's also a configuratin on access-points for how much bandwidth multicast (aka: broadcast) can use. That's often tuned down to a very low default value. I've used successfully multiple megabits across 802.11b, not sure what your problem is... On Tue, Nov 15, 2005 at 02:26:04AM -0000, Tiago Sousa wrote: > Hello to all > > > > I am testing the PIM-SSM daemon (both freebsd and linux) and mrd6 (another > IPv6 multicast routing daemon) in a wireless link. > > The problem I encountered with both pim6sd daemon and mrd6 is that I'm > sending multicast traffic at 4 Mbps and the throughput in the mobile node > (which is very near from de access point) rounds 40 kbps. > > I am using the mad-flute tool to send the multicast SSM traffic and the > tcpdump plus trpr to analyze the data. I have also used IxChariot and the > results are the same. > > > > Anyone knows why the throughput decreases so much in the wireless link? > (The multicast TTL is well defined, I have experimented with several > pci/pcmcia cards and drivers and several access points configurations > (different channels and rates (801.11b and 802.11g)). The results are remain > always the same). > > > > I would appreciate any help/hint that helps me to explain these results. > > > > Thanks. > > > > Tiago Sousa _______________________________________________ ssm mailing list ssm@ietf.org https://www1.ietf.org/mailman/listinfo/ssm
- [ssm] IPv6 Multicast Throughput problems in 802.11 Tiago Sousa
- Re: [ssm] IPv6 Multicast Throughput problems in 8… Toerless Eckert
- RE: [ssm] IPv6 Multicast Throughput problems in 8… Tiago Sousa
- Re: [ssm] IPv6 Multicast Throughput problems in 8… Marshall Eubanks
- RE: [ssm] IPv6 Multicast Throughput problems in 8… Tiago Sousa
- Re: [ssm] IPv6 Multicast Throughput problems in 8… Marshall Eubanks