[HECnet] Active HECnet node listing

Johnny Billquist bqt at softjar.se
Thu Aug 21 11:16:05 PDT 2008


Bob Armstrong wrote:
http://www.avanthar.com:8080/nodes/ seems to not be working to list currently active HECnet nodes.
  Assuming you have a VMS, RSX or RSTS system AND your node is a routing
node (and your local node database is up to date), you can do 	NCP SHOW ACTIVE NODES
to see the nodes that are adjacent to you.   You can also do 

Technically speaking, that will list active nodes, which isn't exactly the same as adjacent nodes.
In RSX (atleast), you can also do

	NCP SHOW ADJACENT NODES

to show which nodes are adjacent.

And don't forget TOPS-20. :-)

	NCP SHOW KNOWN NODES
to see the up/down (reachable or unreachable) status of every node.

Well, not exactly. For nodes not in your own area, it will show which the routing node is, but if the final destination is up or down is not discernible. You'll have to ask the routine node next, to get more information on the actual destination.

  Unfortunately if your node is NOT a routing node then this won't tell you
anything useful.   BUT, don't despair - in that case you can ask your
favorite routing node to tell you.   On your machine you can say -
	NCP TELL LEGATO SHOW KNOWN NODES
and this will actually send the command from your node to NML ("Network
Management Listener") on LEGATO to be executed.   You'll see the nodes that
LEGATO thinks are currently up.   This will work on any target node where the
owner has been kind enough to enable the default DECnet account, e.g. MIM,
and probably most others too.

And to nit pick a bit more. Atleast in RSX, this is not related to the default DECnet account. In fact, in RSX there is no such thing as a default DECnet account.
In RSX atleast, this is an attribute called "verification" that you control on the object. #19 (NIC$$$) in this case.

	Johnny



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