topic Re: slow Telnet connection in Operating System - OpenVMS

slow Telnet connection

Deepak kumar_3 — Tue, 18 Jan 2005 00:07:09 GMT

Hi,

To connect Remote VMS box via Telnet is
taking lot of time to ask username &
password. But once its conected i
can work with normal speed.

Any paramenter setting is required ??

Deepak

Re: slow Telnet connection

Karl Rohwedder — Tue, 18 Jan 2005 00:43:04 GMT

May be that
- the disk on which the SYSUAF... files are located is very busy?
- perhaps an external authenticator is used which is busy?

Re: slow Telnet connection

David B Sneddon — Tue, 18 Jan 2005 01:08:19 GMT

Deepak,

Apart from what Karl has already mentioned, is it
likely that the remote system name involves a DNS
search? Exactly what command are you typing in?
Is the name (assuming you are using a name) of the
destination machine in the local hosts database or
is there some other box involved in translating
the name into an IP address?

Regards
Dave

Re: slow Telnet connection

Antoniov. — Tue, 18 Jan 2005 02:44:29 GMT

Both Karl and David may be right!
Deepak,
when connection takes time, can you see username prompt?
If yes, then trouble is inside your vms box (e.g. sysuaf very busy).
If no, the trouble is outside vms box like dns slow or wrong routing .

Antonio Vigliotti

Re: slow Telnet connection

Bojan Nemec — Tue, 18 Jan 2005 02:47:42 GMT

Deepak,

Another DNS problem can be the back translation of the remote IP address. When loged in try this command:

$ TCPIP SHOW HOST /ADDRESS=xx.xx.xx.xx

Where xx.xx.xx.xx is the ip address of the remote node from which you are connecting VMS by telnet.

Bojan

Re: slow Telnet connection

Ian Miller. — Tue, 18 Jan 2005 04:54:37 GMT

what version of VMS and what tcpip software is the remote vms box running?

The most likely reasons have already been covered
1. a resource problem on the vms box
2. a problem which affects the dns lookup of the IP address of the incoming telnet connection (by default TCPIP Services for OpenVMS will lookup the address so the host name of the incoming connection can be reported).

Re: slow Telnet connection

Daniel Fernandez Illan — Tue, 18 Jan 2005 05:32:15 GMT

Deepak
A place to verifying if the problem is in the VMS box it would be to realize a connection to him and to monitor the system ($MON SYS). Later to try a second connection and to verify if workloads take place.
In this case the problem would be in the box, in opposite case one might owe the comunicaciones.

Daniel.