hubey@pilot.njin.net (Hubey) (05/01/89)
I have a question on the initialization that a DECserver 100 goes
thorugh when it is turned off and on. We have a DECnet system on
campus. One of the terminal servers does not seem to be aware of the
existence of one of the hosts (which is running Ultrix). The system
administrator claims that a host is supposed to broadcast it address
(i.e. its existence).. It seems like there are other ways that the
initialization process can be done. One of the hosts might send the
host table to the Decserver when it comes on line.
I cannot get access to the Ultrix machine through this particular
Decserver and I don't know what the answer is. Can anyone help.
mark
--
H.M. Hubey VOICE: 201-893-5269
hubey@OSultrix.montclair.edu hubey@pilot.njin.net
hubey@apollo.montclair.edu thomas@netrix.dec.com (Matt Thomas) (05/02/89)
> I have a question on the initialization that a DECserver 100 goes > thorugh when it is turned off and on. We have a DECnet system on > campus. One of the terminal servers does not seem to be aware of the > existence of one of the hosts (which is running Ultrix). The system > administrator claims that a host is supposed to broadcast it address > (i.e. its existence).. It seems like there are other ways that the > initialization process can be done. One of the hosts might send the > host table to the Decserver when it comes on line. Once the DECserver is loaded it starts to listens to service advertisements (mutlicasted to 09-00-2b-00-00-0f). Each host periodicly sends an advertisement for the services it support. By listening to these advertisements, the DECserver builds a table of what services are available on the LAN. Now the DS100 doesn't have much memory so it remembers less services than a DS200 would. If you have lots of LAT hosts, you may be exceeding the memory limits of the DS100. Setting the port to autoconnect enabled and then trying to connect (this tell the DECserver to listen for that service and connect you when hear its advertisement). You could also be having a problem with group codes. If the set of group codes for the DECserver doesn't intersect the set of group codes offered by the host, you will never the advertisement or be denied access to the service. -- Matt Thomas Internet: thomas@decwrl.dec.com DECnet-Ultrix Development UUCP: ...!decwrl!thomas Digital Equipment Corporation Disclaimer: This message reflects my own Littleton, MA warped views, etc.