Conference netcad::hub_mgnt

940.0. "DECbridge 90 seems to change itself?" by TENNIS::KAM (Kam USDS (714)261-4133 (DTN 535) IVO) Wed Apr 27 1994 14:18

I recently moved office to another building.  Since that time my DECbridge
90 seems to be out-of-control.

This morning (6:30am) I checked the bridge and the protocols were set to the 
following.  Around 9:30 am all hell broke loose and I was getting request
to download bunches of machines/terminal servers.  Being a MicroVAX III, NCP 
consumes about 90% of the CPU.  Upon looking at  the bridge I notice that 
Protocol 1: became used.

Any ideas what would do this?  I am the only one that has access to this
bridge.  I did a SET ALL to get the protocol filters established.  Upon doing
this the bridge state was 12 so I issued a RESET BRIDGE.

        Any insights would be appreciated
	Regards,

	 kam

DECbridge> SHOW PROT
Protocol 1: filter all ethernet protocol 60-01
Protocol 2: filter all ethernet protocol 60-02
Protocol 3: filter all ethernet protocol 60-07
Protocol 4: filter all ethernet protocol 80-38
Protocol 6: unused protocol
         |
Protocol 16: unused protocol

DECbridge> SHOW PROT
Protocol 1: unused
Protocol 2: filter all ethernet protocol 60-02
Protocol 3: filter all ethernet protocol 60-07
Protocol 4: filter all ethernet protocol 80-38
Protocol 6: unused protocol
         |
Protocol 16: unused protocol

DECbridge>


DECbridge> SHOW BRIDGE

DECbridge 90 V1.14  08-00-2B-25-97-E2 � 1991 Digital Equipment Corp
FPROM V3.1 �1991,93 Digital Equip Corp 5-APR-93
Bridge states:
        Console owner: AA-00-04-00-04-F4        Uptime: 878.09 seconds
        Bridge state: 17                        Work group size: 200
        Hub mgmt enable: 1                      Spanning tree enable: 1
        Flash ROM erasures:  2                  Address lifetime: 450*2 sec.
Event counters:
        Sys buffer unavail. errors: 0
        WG size exceeded errors: 54,702

Spanning tree parameters:
        Bridge id:       FF-FF-08-00-2B-25-97-E2        Root port: 2
        Designated_root: 00-37-08-00-7C-00-64-70        Root path cost: 161
        Current Forward delay: 15, Hello interval: 1, Listen time: 15
        Def. Forward delay: 15, Hello interval: 1, Listen time: 15
        Topology change flag: 0         Topology change timer: 30
        Bad hello limit: 15             Bad hello reset interval: 5
        Epoch_mode: 1   Epoch1 who: 00-00-00-00-00-00   Mode changes: 1
        Epoch 1 poll time: 18 seconds   Epoch 1 response time: 15 seconds

DECbridge>

    Looks like your bridge is not installed correctly:
    
       The Work Group Size Exceeded errors is 54,702.
       The Root port is 2.
    
    You have connected the backbone of your network to the Work Group port
    on the bridge (this is the hub backplane in a hub, or the 'lanhole'
    connection on the large flat upper surface when standalone).
    
    Can you describe or diagram your configuration?
    

OOPS! Backwards....


	Regards,

	 kam