Conference help::decnet-osi_for_vms

3967.0. "Can't set host from P5 to P4 via more than 3 Cisco." by HTSC19::KENNETH () Thu May 22 1997 01:25

Hi,

There is a customer report that they cannot "set host" from Phase IV node to
Phase V node and vice versa through 4 Cisco router.  However, there is no
problem when "set host" from Phase IV to Phase IV or Phase V to Phase V.
But there is no problem for Digital Unix running DECnet/OSI, the problem
only found on VAX systems.

Below is the diagram:




[Phase IV]----(Cisco)--T1---(Cisco)		      ------[Phase IV]
  host	   |		     |			      |       host
	   |Ethernet	     |Ethernet		      |
	   |		     |			      |Ethernet
[Phase V]--|		  (Cisco)----T1---(Cisco)-----|
  host 						      |
						      |-----[Phase V]
                                                             host

Software version:

Phase IV:	OpenVMS V6.2

Phase V:	OpenVMS 6.1 DECnet/OSI 6.1 ECO7
                DEC Unix 3.2c DECnet/OSI 3.2-0



Symptoms:

1) All the DECnet/OSI setting are default and all DECnet routing are
   on the same area.

2) Phase V to Phase IV does not work, no message get.
   But set host works for Digital Unix Phase V host to VAX phase IV host.

3) Everything is fine if the destination host is separated by less than
   2 Cisco routers.  

4) Set host works for hosts on the same segments.

5) No console message at all (according to the customer).


Is there anyone face a similar case before?  Any problem with the 
Cisco or DECnet/OSI V6.1?  Any ideas?

Thanks for your help in advance.

Kenneth Leung

Kenneth,

It's almost certainly Cisco bugs or else Cisco configuration errors.

It is extremely unlikely to be DECnet/OSI (even old versions, like 6.1), and
it is even less likely to be a problem with PhaseIV DECnet.

Try a different notesfile ;-)

Regards,

	John

Try setting the routing mode on the DECnet/OSI for
OpenVMS system to segrargated (which is the default 
for DECnet/OSI for UNIX).