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Conference netcad::hub_mgnt

Title:	DEChub/HUBwatch/PROBEwatch CONFERENCE
Notice:	Firmware -2, Doc -3, Power -4, HW kits -5, firm load -6&7
Moderator:	NETCAD::COLELLADT

Created:	Wed Nov 13 1991
Last Modified:	Fri Jun 06 1997
Last Successful Update:	Fri Jun 06 1997
Number of topics:	4455
Total number of notes:	16761

4402.0. "DEChub 900EF config question" by rtpdial1_port2.rtp.dec.com::Gallagher (Life is good!) Mon May 12 1997 18:41

Subject: DECHub 90 C�s in a DECHub 900 Chassis.

	Current configuration is a DECHub 900 Chassis with the following modules:
		Slot  # 1	90C
		Slot  # 2 90C
		Slot  # 3 90C
		Slot  # 4 90C
		Slot  # 5 90C
		Slot  # 6 90C
		Slot  # 7 90FL
		Slot  # 8 900EF

	Flex Channels / Port Switch:
		There are NO flex channels.
The Port Switch has Port # 1 (FDDI) with the "M" to the Back Plane, and the "S" to the front.   

The "S" is connected to a "M" Port off a DEC500 Concentrator. 
The "M" is connected to nothing on the back Plane.


The Port Switch has Port # 3 connected to the Back Plane, and connected to the Thinwire channel.

Issue:	In the above configuration everything connects fine.
	However, when I attempt to bring the "M" Port to the front all  connections are lost.
	
	Why?

The "M" Port is NOT connected to the Back Plane, and the Thinwire is connected
	to port switch # 3.

	What am I missing?

Thank You,

Ed Gallagher

T.R Title User Personal
Name Date Lines

4402.1 NETCAD::DOODY Michael Doody Tue May 13 1997 09:59 17

T.R	Title	User	Personal Name	Date	Lines
4402.1		NETCAD::DOODY	Michael Doody	`Tue May 13 1997 09:59`	17
	I assume you mean a DECswitch 900EF. When you say you are trying to bring the M port to the front, do you mean both the M and S ports are both out the front (you haven't changed the connection to the DC500) ? Is there anything connected to the front-panel M port? The only thing I can think of right now is that maybe the FDDI port has gone into preforwarding/learning for 30 seconds due to the change. But things would be back to normal after that. Also, be sure you are managing the hub with a compatible version of ClearVisn. -Mike

I assume you mean a DECswitch 900EF. 

When you say you are trying to bring the M port to the 
front, do you  mean both the M and S ports are both
out the front (you haven't changed the connection to the 
DC500) ? Is there anything connected to the front-panel
M port?

The only thing I can think of right now is that maybe the
FDDI port has gone into preforwarding/learning for 30 seconds
due to the change. But things would be back to normal after
that.

Also, be sure you are managing the hub with a compatible version
of ClearVisn.

-Mike