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Conference azur::mcc

Title:DECmcc user notes file. Does not replace IPMT.
Notice:Use IPMT for problems. Newsletter location in note 6187
Moderator:TAEC::BEROUD
Created:Mon Aug 21 1989
Last Modified:Wed Jun 04 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:6497
Total number of notes:27359

1636.0. "Device Broken Reason/ELMS/Bridge AM" by SUBURB::SMYTHI (Ian Smyth 830-3869) Thu Oct 10 1991 13:23

	Has anyone noticed the following difference between ELMS and 
MCC Bridge AM. Note the 'Device Broken Reason' in both cases.

$elms show ar3_ar1 

Device Status as of   10-OCT-1991 16:52:37
Name AR3_AR1,  Address 08-00-2B-26-AD-45

Device State:                                     OPERATE
Current Forwarding Database Entries:              913            
Current Non-volatile Forwarding Database Entries: 0              
Current Protocol Database Entries:                0
Current Non-volatile Protocol Database Entries:   0
Management Request Heard Port:                    2
LAN Bridge 100 Being Polled:                      08-00-2B-06-D9-B6
Spanning Tree Mode:                               LAN Bridge 100
Inactive Forwarding Database Entries:             438
Time Since Forwarding Database Purged:            7304
Device Broken Reason:                             Selftest failure
NVRAM Failed Flag:                                False
Time Since Last Hello Sent:                       0
Device Configuration:                             N/A

$
$Mana/Enter show Bridge ar3_ar1 all status
BRIDGE UKHUB_NS:.ar3_ar1 
AT 10-OCT-1991 17:05:59 Status

Examination of attributes shows:
                      NVRAM Failed Flag = False
                        Bridge Function = Bridge
                  Management Heard Port = 2
                           Device State = Operating
                     Best Root Priority = 70
                              Best Root = 08-00-2B-06-D9-B6
                          Best Root Age = 1 Seconds
                                My Cost = 10
                              Root Port = 2
             Time Since Last Hello Sent = 0 Seconds
                   Topology Change Flag = False
      Topology Change Notification Flag = False
                  Topology Change Timer = 0 Seconds
                  Actual Hello Interval = 1 Seconds
                   Actual Forward Delay = 30 Seconds
                     Actual Listen Time = 15 Seconds
                     Spanning Tree Mode = LAN Bridge 100 Mode
             LANBridge 100 Being Polled = 08-00-2B-06-D9-B6
                           Loaded Tasks = 0
                   Device Broken Reason = None


	Which one is correct?

Ian
T.RTitleUserPersonal
Name
DateLines
1636.1They're both right :-)CHRISB::BRIENENDECmcc Bridge|Station|SNMP Management.Thu Oct 10 1991 15:298
Bridge AM and DECelms interpret the attribute differently:

 - DECelms shows what the Device Broken Reason was the last time that
    a failure occurred.

 - Bridge AM shows what Device Broken Reason is (i.e. the bridge state
    is "Operating", not "Broken", so Device Broken Reason doesn't
    apply), not what it "was".
1636.2SUBURB::SMYTHIIan Smyth 830-3869Fri Oct 11 1991 06:4011
 So DECelms is saying the bridge has had a problem sometime in the
past (possibly before the last reboot) while Bridge Am is saying that 
because the bridge is operating, there is no need to examine the 
'device broken reason' field.

 I assume that a reset to factory setting should clear the message.

regards,
	Ian