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Discussion Groups | Rabbit-Semi | Ping issues
This is a group for folks designing and programming embedded systems using the Rabbit Semiconductor C-programmable microcontroller. Rabbit Semi is a spin-off from Z-World who makes a variety of embedded modules and tools. This group is not affiliated with either Rabbit or Z-World, but is a user forum for sharing ideas, asking questions, flaunting knowledge, and other typical user group stuff. The Rabbit is a powerful uC, supported by a full-featured C-compiler.
Ping issues - Bob Hohentanner - Aug 28 8:49:49 2008
I have a customer who is pinging our device once a second on a busy
network, but the pings are the only things going on with our device.
With no rhyme or reason, our device will not respond to a ping requests
intermittently.
Has anyone else had this issue with the Rabbit stack? I'm using DC
7.33..........I know it's old but I've never heard of any ping issues
with it. The customer says that there two Cisco 2600 switches between
his PC doing the pings and the device in one situation and a Cisco
Catalyst and Cisco 2600 in the other situation, both setups exhibit the
problem. The customer also sent me sniff traces and if he had things
setup correctly, you can clearly see the ping request being made and
then not responded to every few seconds.
Thanks,
Bob
(You need to be a member of rabbit-semi -- send a blank email to rabbit-semi-subscribe@yahoogroups.com )
network, but the pings are the only things going on with our device.
With no rhyme or reason, our device will not respond to a ping requests
intermittently.
Has anyone else had this issue with the Rabbit stack? I'm using DC
7.33..........I know it's old but I've never heard of any ping issues
with it. The customer says that there two Cisco 2600 switches between
his PC doing the pings and the device in one situation and a Cisco
Catalyst and Cisco 2600 in the other situation, both setups exhibit the
problem. The customer also sent me sniff traces and if he had things
setup correctly, you can clearly see the ping request being made and
then not responded to every few seconds.
Thanks,
Bob
(You need to be a member of rabbit-semi -- send a blank email to rabbit-semi-subscribe@yahoogroups.com )
RE: Ping issues - =?iso-8859-1?Q?Jes=FAs_Manuel_Conejo_Sarabia?= - Aug 28 9:17:53 2008
Hi Bob,
I have never had any problem with DC 8.01. Have you tried
with another Rabbit module?. Are you using your own PCB?
Jesus.
De: r...@yahoogroups.com [mailto:r...@yahoogroups.com] En
nombre de Bob Hohentanner
Enviado el: jueves, 28 de agosto de 2008 14:50
Para: r...@yahoogroups.com
Asunto: [rabbit-semi] Ping issues
I have a customer who is pinging our device once a second on a busy network,
but the pings are the only things going on with our device. With no rhyme or
reason, our device will not respond to a ping requests intermittently.
Has anyone else had this issue with the Rabbit stack? I’m using DC 7.33……….I
know it’s old but I’ve never heard of any ping issues with it. The customer
says that there two Cisco 2600 switches between his PC doing the pings and
the device in one situation and a Cisco Catalyst and Cisco 2600 in the other
situation, both setups exhibit the problem. The customer also sent me sniff
traces and if he had things setup correctly, you can clearly see the ping
request being made and then not responded to every few seconds.
Thanks,
Bob
(You need to be a member of rabbit-semi -- send a blank email to rabbit-semi-subscribe@yahoogroups.com )
I have never had any problem with DC 8.01. Have you tried
with another Rabbit module?. Are you using your own PCB?
Jesus.
De: r...@yahoogroups.com [mailto:r...@yahoogroups.com] En
nombre de Bob Hohentanner
Enviado el: jueves, 28 de agosto de 2008 14:50
Para: r...@yahoogroups.com
Asunto: [rabbit-semi] Ping issues
I have a customer who is pinging our device once a second on a busy network,
but the pings are the only things going on with our device. With no rhyme or
reason, our device will not respond to a ping requests intermittently.
Has anyone else had this issue with the Rabbit stack? I’m using DC 7.33……….I
know it’s old but I’ve never heard of any ping issues with it. The customer
says that there two Cisco 2600 switches between his PC doing the pings and
the device in one situation and a Cisco Catalyst and Cisco 2600 in the other
situation, both setups exhibit the problem. The customer also sent me sniff
traces and if he had things setup correctly, you can clearly see the ping
request being made and then not responded to every few seconds.
Thanks,
Bob
(You need to be a member of rabbit-semi -- send a blank email to rabbit-semi-subscribe@yahoogroups.com )
Re: Ping issues - Scott Henion - Aug 28 9:22:16 2008
Bob Hohentanner wrote:
>
> I have a customer who is pinging our device once a second on a busy
> network, but the pings are the only things going on with our device.
> With no rhyme or reason, our device will not respond to a ping
> requests intermittently.
>
> Has anyone else had this issue with the Rabbit stack? I’m using DC
> 7.33……….I know it’s old but I’ve never heard of any ping issues with
> it. The customer says that there two Cisco 2600 switches between his
> PC doing the pings and the device in one situation and a Cisco
> Catalyst and Cisco 2600 in the other situation, both setups exhibit
> the problem. The customer also sent me sniff traces and if he had
> things setup correctly, you can clearly see the ping request being
> made and then not responded to every few seconds.
>
Most likely it is dropping packets. Is this an RCM2xxx or RCM100 with
the realtek chip? Those will not negotiate duplex properly with switches.
Try having then force the port on the switch to half duplex.
There is also a compile option to enable full duplex.
--
------------------------------------------
| Scott G. Henion| s...@shdesigns.org |
| Consultant | Stone Mountain, GA |
| SHDesigns http://www.shdesigns.org |
------------------------------------------
Rabbit libs: http://www.shdesigns.org/rabbit/
today's fortune
BOFH Excuse #342:
HTTPD Error 4004 : very old Intel cpu - insufficient processing power
(You need to be a member of rabbit-semi -- send a blank email to rabbit-semi-subscribe@yahoogroups.com )
>
> I have a customer who is pinging our device once a second on a busy
> network, but the pings are the only things going on with our device.
> With no rhyme or reason, our device will not respond to a ping
> requests intermittently.
>
> Has anyone else had this issue with the Rabbit stack? I’m using DC
> 7.33……….I know it’s old but I’ve never heard of any ping issues with
> it. The customer says that there two Cisco 2600 switches between his
> PC doing the pings and the device in one situation and a Cisco
> Catalyst and Cisco 2600 in the other situation, both setups exhibit
> the problem. The customer also sent me sniff traces and if he had
> things setup correctly, you can clearly see the ping request being
> made and then not responded to every few seconds.
>
Most likely it is dropping packets. Is this an RCM2xxx or RCM100 with
the realtek chip? Those will not negotiate duplex properly with switches.
Try having then force the port on the switch to half duplex.
There is also a compile option to enable full duplex.
--
------------------------------------------
| Scott G. Henion| s...@shdesigns.org |
| Consultant | Stone Mountain, GA |
| SHDesigns http://www.shdesigns.org |
------------------------------------------
Rabbit libs: http://www.shdesigns.org/rabbit/
today's fortune
BOFH Excuse #342:
HTTPD Error 4004 : very old Intel cpu - insufficient processing power
(You need to be a member of rabbit-semi -- send a blank email to rabbit-semi-subscribe@yahoogroups.com )
RE: Ping issues - Bob Hohentanner - Aug 28 9:38:29 2008
This is a Rabbit 3000 in our own PC board with a SmSC network chip. We
have thousands of these and similar devices in use by our customers
without any issues, but this customer has two different products of ours
based on the Rabbit 3000 and is having issues with both of them. My
guess is there is some incompatibility between our devices and the
switch setup he is using. If he connects directly to his PC they will
respond to pings all day long, however when goes through the switches
many pings are missed. The trace he sent me shows that the ping request
made it our device and we just ignored.
Do you still think it may be a Half/Full Duplex issue?
Thanks,
Bob
________________________________
From: r...@yahoogroups.com [mailto:r...@yahoogroups.com]
On Behalf Of Scott Henion
Sent: Thursday, August 28, 2008 9:22 AM
To: r...@yahoogroups.com
Subject: Re: [rabbit-semi] Ping issues
Bob Hohentanner wrote:
I have a customer who is pinging our device once a second on a
busy network, but the pings are the only things going on with our
device. With no rhyme or reason, our device will not respond to a ping
requests intermittently.
Has anyone else had this issue with the Rabbit stack? I'm using
DC 7.33..........I know it's old but I've never heard of any ping issues
with it. The customer says that there two Cisco 2600 switches between
his PC doing the pings and the device in one situation and a Cisco
Catalyst and Cisco 2600 in the other situation, both setups exhibit the
problem. The customer also sent me sniff traces and if he had things
setup correctly, you can clearly see the ping request being made and
then not responded to every few seconds.
Most likely it is dropping packets. Is this an RCM2xxx or RCM100 with
the realtek chip? Those will not negotiate duplex properly with
switches.
Try having then force the port on the switch to half duplex.
There is also a compile option to enable full duplex.
--
------------------------------------------
| Scott G. Henion| s...@shdesigns.org
|
| Consultant | Stone Mountain, GA |
| SHDesigns http://www.shdesigns.org |
------------------------------------------
Rabbit libs: http://www.shdesigns.org/rabbit/
today's fortune
BOFH Excuse #342:
HTTPD Error 4004 : very old Intel cpu - insufficient processing power
(You need to be a member of rabbit-semi -- send a blank email to rabbit-semi-subscribe@yahoogroups.com )
have thousands of these and similar devices in use by our customers
without any issues, but this customer has two different products of ours
based on the Rabbit 3000 and is having issues with both of them. My
guess is there is some incompatibility between our devices and the
switch setup he is using. If he connects directly to his PC they will
respond to pings all day long, however when goes through the switches
many pings are missed. The trace he sent me shows that the ping request
made it our device and we just ignored.
Do you still think it may be a Half/Full Duplex issue?
Thanks,
Bob
________________________________
From: r...@yahoogroups.com [mailto:r...@yahoogroups.com]
On Behalf Of Scott Henion
Sent: Thursday, August 28, 2008 9:22 AM
To: r...@yahoogroups.com
Subject: Re: [rabbit-semi] Ping issues
Bob Hohentanner wrote:
I have a customer who is pinging our device once a second on a
busy network, but the pings are the only things going on with our
device. With no rhyme or reason, our device will not respond to a ping
requests intermittently.
Has anyone else had this issue with the Rabbit stack? I'm using
DC 7.33..........I know it's old but I've never heard of any ping issues
with it. The customer says that there two Cisco 2600 switches between
his PC doing the pings and the device in one situation and a Cisco
Catalyst and Cisco 2600 in the other situation, both setups exhibit the
problem. The customer also sent me sniff traces and if he had things
setup correctly, you can clearly see the ping request being made and
then not responded to every few seconds.
Most likely it is dropping packets. Is this an RCM2xxx or RCM100 with
the realtek chip? Those will not negotiate duplex properly with
switches.
Try having then force the port on the switch to half duplex.
There is also a compile option to enable full duplex.
--
------------------------------------------
| Scott G. Henion| s...@shdesigns.org
|
| Consultant | Stone Mountain, GA |
| SHDesigns http://www.shdesigns.org
------------------------------------------
Rabbit libs: http://www.shdesigns.org/rabbit/
today's fortune
BOFH Excuse #342:
HTTPD Error 4004 : very old Intel cpu - insufficient processing power
(You need to be a member of rabbit-semi -- send a blank email to rabbit-semi-subscribe@yahoogroups.com )
Re: Ping issues - Scott Henion - Aug 28 10:58:17 2008
Bob Hohentanner wrote:
>
> This is a Rabbit 3000 in our own PC board with a SmSC network chip. We
> have thousands of these and similar devices in use by our customers
> without any issues, but this customer has two different products of
> ours based on the Rabbit 3000 and is having issues with both of them.
> My guess is there is some incompatibility between our devices and the
> switch setup he is using. If he connects directly to his PC they will
> respond to pings all day long, however when goes through the switches
> many pings are missed. The trace he sent me shows that the ping
> request made it our device and we just ignored.
>
> Do you still think it may be a Half/Full Duplex issue?
The SMSC chip works well, I have not seen switch issues with it.
I have seen designs that had noise issues with the SMSC and Asix chips.
They will drop packets if there is power supply noise.
--
------------------------------------------
| Scott G. Henion| s...@shdesigns.org |
| Consultant | Stone Mountain, GA |
| SHDesigns http://www.shdesigns.org |
------------------------------------------
Rabbit libs: http://www.shdesigns.org/rabbit/
today's fortune
birth, n:
The first and direst of all disasters.
-- Ambrose Bierce, "The Devil's Dictionary"
(You need to be a member of rabbit-semi -- send a blank email to rabbit-semi-subscribe@yahoogroups.com )
>
> This is a Rabbit 3000 in our own PC board with a SmSC network chip. We
> have thousands of these and similar devices in use by our customers
> without any issues, but this customer has two different products of
> ours based on the Rabbit 3000 and is having issues with both of them.
> My guess is there is some incompatibility between our devices and the
> switch setup he is using. If he connects directly to his PC they will
> respond to pings all day long, however when goes through the switches
> many pings are missed. The trace he sent me shows that the ping
> request made it our device and we just ignored.
>
> Do you still think it may be a Half/Full Duplex issue?
The SMSC chip works well, I have not seen switch issues with it.
I have seen designs that had noise issues with the SMSC and Asix chips.
They will drop packets if there is power supply noise.
--
------------------------------------------
| Scott G. Henion| s...@shdesigns.org |
| Consultant | Stone Mountain, GA |
| SHDesigns http://www.shdesigns.org |
------------------------------------------
Rabbit libs: http://www.shdesigns.org/rabbit/
today's fortune
birth, n:
The first and direst of all disasters.
-- Ambrose Bierce, "The Devil's Dictionary"
(You need to be a member of rabbit-semi -- send a blank email to rabbit-semi-subscribe@yahoogroups.com )