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- Path: sparky!uunet!pipex!bnr.co.uk!uknet!mcsun!fuug!funic!vttux1!rat.vtt.fi!leino
- From: leino@rat.vtt.fi (Tapio Leino)
- Newsgroups: comp.protocols.tcp-ip
- Subject: Software release problem?
- Message-ID: <1huab3INNs4t@vttux1.vtt.fi>
- Date: 31 Dec 92 08:17:39 GMT
- Organization: VTT / Lab. of Structural Engineering
- Lines: 52
- NNTP-Posting-Host: rat.vtt.fi
-
-
-
- Where should I look for finding the cause of this situation? Could
- somebody help us, please.
-
- A simplified of my configuration (there are more segments):
-
-
- 386 DOS 3COM IRIX 4.0.5 IRIX 3.3.1
- ______ _____________ __________ __________
- I PC I I Multiport I I Pers. I I Pers. I
- I____I I repeater I I IRIS I I IRIS I
- I I___________I I_4D/25G_I I_4D/20G_I
- I I I I I
- I_______________I I_______________I_______________I
- two thin-Ethernet segments + TCP/IP -software (!)
-
-
- a) If the TCP/IP-software in my PC is the Wollongong WINTCP for DOS
- there is no trouble in connecting the PC (with telnet) to the 4D/20G
- type IRIS with the older IRIX 3.3.1 operating system,
- but it cannot be connected to the other IRIS (with IRIS 4.0.5)?
-
- b) If I am using a product called PCTCP instead of the WINTCP I can
- connect to both IRIS workstations with no trouble.
-
- This started when we took the newest release 4.0.5 of IRIX! Before that I
- could connect the PC to both workstations with WINTCP.
-
- We have checked what happens on the lines. The messages seem to go to the
- IRIS quite OK but the messages it sends to the PC are not understood by the
- WINTCP and everything just stops.
-
- There are two problems which I know of, but could anyone evaluate how much
- they have an effect on this situation (they both existed before we took the
- IRIX release 4.0.5):
-
- 1) the thin-Ethernet segment where the PC in connected is too long (205m)
- but the traffic is quite small!
-
- 2) the IRIS with IRIX 4.0.5 has a clear difference in what is its speed
- when inputing data through the Ethernet compared with the output
- speed (which is 10 times faster!). We have asked about the reason for
- it from the Silicon Graphics but they have not found out the reason yet.
-
- Any hints would be greatly appreciated!
-
- --
- Tapio Leino
- Technical Research Centre of Finland / Laboratory of Structural Engineering
- mail: VTT/Rakennetekniikan laboratorio, P.O. Box 26, SF-02151 ESPOO, Finland
- tel: -358-0-456 6683, telefax: -358-0-456 7003 e-mail: Tapio.Leino@vtt.fi
-