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тАО08-20-2007 11:03 PM
тАО08-20-2007 11:03 PM
problem in connecting via decnet
I am facing problem to set host to another VMS machine or even a DEMSB in the network , when I am giving a command
$set host
$ set host
it immediately says "remote nore is currently not reachable"
But, when I am doing
$ set host 0 or
$set host
it is working .
OS version 6.2 1H3
What could be the probable reason , please advice.
Best regards,
Sanjoy
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тАО08-20-2007 11:20 PM
тАО08-20-2007 11:20 PM
Re: problem in connecting via decnet
If SET HOST 0 works, some of the possible causes of the symptoms reported in your post include:
- incorrect license loaded (SET HOST 0 does not require a license)
- cabling or interface problems.
More information is needed. The problem can also be the result of a problem within the network but outside of your local machine.
Can you reach any node besides the local one? Are the correct licenses loaded?
- Bob Gezelter, http://www.rlgsc.com
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тАО08-20-2007 11:26 PM
тАО08-20-2007 11:26 PM
Re: problem in connecting via decnet
What version of decnet (4 or 5) ?
Which transport (NSP/OSI) ?
Wim
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тАО08-20-2007 11:28 PM
тАО08-20-2007 11:28 PM
Re: problem in connecting via decnet
it is just what the message says: the remote node is not currently reachable.
Has this worked before, or is this a new connection?
Since you CAN set host 0, your own DECNET is up and running.
That leaves as possible causes:
hardware not connected
Hardware malfunctioning
DECnet not running on remode node (may be even entire node down)
Or, depending on network configuration, DECnet routing disabled or misconfigured.
As a start, log in to remote node and do a SET HOST 0 there, to check node & DECnet up & running.
If you also have IP on those systems, try IP connectivity to find hardware or physical connection problems.
If those are OK, report back, and we can start focussing on the DECnet connection itself.
Proost.
Have one on me.
jpe
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тАО08-20-2007 11:43 PM
тАО08-20-2007 11:43 PM
Re: problem in connecting via decnet
I can't even do
$set h/dup HNRX01 (it is a DEMSB which is in the same network and boots from this machine only ) Decnet addr. of this machine is 3.4
decnet addr. of the DEMSB is 3.5
Decnet version : DECnet/OSI for OpenVMS Version V6.3-ECO10
Sanjoy
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тАО08-21-2007 09:55 AM
тАО08-21-2007 09:55 AM
Re: problem in connecting via decnet
It could be a lot of things.
Are all the network components in the path between your node and the DEMSB working?
What (if anything) has been changed recently?
You must have an adjacent router to give you the "node unreachable" message. So, what adjacencies can you see over the DECnet routing circuits on you node? What adjacencies can the router see?
Can you reach any other DECnet node, including the router?
If the nodes are there, but unreachable, then it's probably that your node's license has failed to load (e.g. a DSPP PAK has expired).
Can you reach the nodes with a different protocol, e.g. TCP/IP? If so then it's probably not the physical path.
Have your network group disabled DECnet routing on the WAN (if you're using a WAN)?
Have your network group changed your VLAN to an IP only VLAN?
There are many possibilities. Without looking at it directly it is very difficult to guess what might have happened.
You might find this useful for some of the DECnet background: http://www.downloads.xdelta.co.uk/vmstjv5%20feb2005/decnet%20article%20vms%20tj%20v5%20feb2005.pdf
Cheers, Colin (http://www.xdelta.co.uk).
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тАО08-21-2007 02:24 PM
тАО08-21-2007 02:24 PM
Re: problem in connecting via decnet
Can you ping the remote host or do a set host/telnet?
You need to rule out connectivity as the issue before looking at whether decnet is at fault somehow.
Regards,
Mark
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тАО08-22-2007 03:23 AM
тАО08-22-2007 03:23 AM
Re: problem in connecting via decnet
$ MC NCP SHOW KNOWN NODES
$ MC NCP SHOW KNOWN CIRCUITS
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тАО08-22-2007 03:41 AM
тАО08-22-2007 03:41 AM
Re: problem in connecting via decnet
As for more general questions that could be triggers for this (mis)behavior, is the network controller configured and connected to the Ethernet network?
Is the (I'm guessing) IP infrastructure set to pass DECnet? Or is your DEMSB still connecting to X.25?
Is the system licensed for DECnet? (One of the DVNETEND, DVNETEXT, or DVNETRTG license PAKs, or one of the NET-APP-SUP* license PAKs.) If this is an existing box, probably "yes" -- but no license PAK or an expired PAK is a common trigger for DECnet failures such as described.
Are there any DECnet network adjacencies? (SHOW NETWORK at DCL might give a little more detail.)
You're already working to replace the DEMSB, apparently.
As others have indicated, more detail and more information is required.
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тАО08-24-2007 01:09 AM
тАО08-24-2007 01:09 AM
Re: problem in connecting via decnet
Most of the questions are in prior messages. But what is your SCSID. It this corresponding with the DECNet adress ?
(x.y => x*1024+y )
In addition to Mark: SET HOST/TELNET is only working with DECNet OSI and DECNet over IP is set on. Correct me if I'm wrong but for 6.2-1H3 was only a EAK for DECNet over IP (not realy for production).
AvR