28 Apr
2006
28 Apr
'06
3:50 a.m.
Hello everyone,
I recently started using udpcast and so far am very impressed. I am
however having a problem. When I try to udpcast to 5 clients, 1-3
typically give an error similar to the following:
Timeout notAnswered=[2,3,4] notReady=[2,3,4] nrAns=2 nrRead=2 nrPart=5
avg=10152
I've tried adjusting the transmission speed, multicast addresses, starting
the clients before the server or vise-versa. So far it appears to be
random which clients decide to "answer" and be "ready". Sometimes they
all
work, sometimes 4 work, sometimes only 1 works, etc.
the lab I am working in is connected though a cisco 4006. From what I have
read cisco uses a proprietary IGMP implementation (called CGMP), could
this be a cause of some of the problems I am having?
If anyone has any insight into this problem please reply.
Thank you,
Mike
28 Apr
28 Apr
7:49 a.m.
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On 27 Apr 2006 at 20:50, Mike Drew wrote:
Date sent: Thu, 27 Apr 2006 20:50:39 -0700 (PDT)
From: "Mike Drew" <drewm(a)sonoma.edu>
To: udpcast(a)udpcast.linux.lu
Subject: [Udpcast] Timeout , notAnswered, notReady
Hello everyone,
I recently started using udpcast and so far am very impressed. I am
however having a problem. When I try to udpcast to 5 clients, 1-3
typically give an error similar to the following:
Timeout notAnswered=[2,3,4] notReady=[2,3,4] nrAns=2 nrRead=2 nrPart=5
avg=10152
I have seen a similar issue, but in my case, it appears that one of my
classroom systems has a hard drive that isn't able to keep up with the
transfer speeds as well as the other machines when it comes to the blank
space on the hard drive. I use the --max-bitrate=60M to get it to have
minimal error messages. When not imaging that machine, I can usually set it
to 80M and not get any or very few of these messages. Never seen any
problems with this message, but it does slow down things. I know it is the
hard drive, since I swapped it between two machine, and it moved with the
drive. Exactly the same drive model, so, it is that particular drive.
I've tried adjusting the transmission speed,
multicast addresses, starting
the clients before the server or vise-versa. So far it appears to be
random which clients decide to "answer" and be "ready". Sometimes
they all
work, sometimes 4 work, sometimes only 1 works, etc.
the lab I am working in is connected though a cisco 4006. From what I have
read cisco uses a proprietary IGMP implementation (called CGMP), could
this be a cause of some of the problems I am having?
If anyone has any insight into this problem please reply.
Thank you,
Mike
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+----------------------------------------------------------+
Michael D. Setzer II - Computer Science Instructor
Guam Community College Computer Center
mailto:mikes@kuentos.guam.net
mailto:msetzerii@gmail.com
http://www.guam.net/home/mikes
Guam - Where America's Day Begins
+----------------------------------------------------------+
http://setiathome.berkeley.edu
Number of Seti Units Returned: 19,471
Processing time: 32 years, 290 days, 12 hours, 58 minutes
(Total Hours: 287,489)
BOINC Seti@Home Total Credits 772196.012504
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Mike Drew