Re: burst & silence
Hi, Andrew,
At 12:24 PM 7/14/2004 -0700, you wrote:
> On Wed, 14 Jul 2004, Mitch Kutzko wrote:
>
> > This version adds Burst testing and Silence testing, as well as a
number of
> > bug fixes. Unfortunately, we're still working on the RTT calculation bug,
> > but both Loss and Jitter are working correctly.
>
> So I turned on burst and silence testing - where does that show up ?
The scheduling of the tests shows up under the Beacon Info link. The
Beacon proper doesn't do anything with the Burst or Silence testing, other
and send or not send the appropriate data.
The tests are included so your network admins can have data to do their own
testing.
> (silence testing I think will help with showing problems with multicast
> join. We finally got our problems fixed when Nortel found a reference to
> checksums in their release notes, after I'd been telling them for months
> about anomalous checksums seen in PIM with Ethereal. Truly weird - because
> of the bad checksum, and perhaps a bug in the upstream Juniper that
> accepted PIM joins with a bad checksum as long as they had an odd packet
> length, multicast would work if the first packet on a group was odd-sized,
> otherwise the router was poisoned until the state timed out. Once the
> beacon group was registered, it stayed registered, so the beacon said
> things were working but the video wasn't .... )
Excellent -- This is exactly the sort of thing the tests are included for.
> (Did I plug the Internet2 multicast workshops ? If not,
> http://andrew.triumf.ca/AG/multicast/
> http://multicast.internet2.edu/ etc. )
Cool.
Mitch
--
Mitch Kutzko | mitch@dast.nlanr.net | mitch@ncsa.uiuc.edu | 217-333-1199
http://hobbes.ncsa.uiuc.edu/