What is TCP re-transmit?

[Packya]

I have been sniffing my network using Lansure (available at Lansure.com). I have been getting lots of errors belonging to the error type "TCP re-transmit".

What are these errors and is there any way to reduce them?
Any suggestion is welcome.

Thanks in advance
Prakash.

 

[DrGreen26]

Usually what happens is the time to live timesout, when this occurs, the host re-transmits the packet. What you can do is look into the specific client and increase the timeout delay or look at the host and make sure it is configured properly to respond to the tcp requests.

Here's what happens. The IP packet is sent and the clock starts ticking. If the host receives the packet and sends a reply, but the reply does not get back to the host soon enough, the host will assume the packet was dropped and it will re-transmit it. So you will have to look at both your infrastructure and servers and pc's and check their configurations and maybe increase the time to live timeout. Novell's client has a time-out setting which follows the rfc standard, so my guess is that the clients on your workstations should also have a setting that you can increase.

Hope this helps

Mark C. Greenwood, CNE
m_jgreenwood@yahoo.com

CNE 4.11 and CNE 5 certified. BS Degree in MIS. Working in the industry for 8 years.

I work with NT servers, NDS for NT as well.