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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

3542.0. "How detect an FDDI-ring wrap?" by STKHLM::DUFVA (Nils Dufva, Network Services Sweden) Mon May 20 1996 15:23

    Hi,
    
    A customer asked me for an easy way to detect when an FDDI ring becomes
    wrapped.
    As it is, they have to manually check each port on the DAS/DAC units
    on the ring with HUBwatch to detect a wrap. They just had a double-
    failure on the ring where the first wrap could have existed for some
    time before the second one.
    
    They use GIGAswitch, DECbridge 600, DECconcentrator 500/900 and
    DECswitch 900EF, monitored by NETview and HUBwatch/OSF. 
    
    Are there any CLEARvisn tool that can be used for this, or should
    he use NETview SnmpCollect maybe?
    
    It is not clear to me which MIB value that indicates that an FDDI ring
    becomes wrapped, anyone that knows?
    
    Thank you,
    
    Nils.
T.RTitleUserPersonal
Name		DateLines
3542.1NPSS::MDLYONSMichael D. Lyons DTN 226-6943Wed May 22 1996 09:5122
    ...from rfc 1285:
    
    
          snmpFddiSMTCFState OBJECT-TYPE
              SYNTAX  INTEGER {
                          cf0(1), -- Isolated
                          cf1(2), -- Wrap_S
                          cf2(3), -- Wrap_A
                          cf3(4), -- Wrap_B
                          cf4(5), -- Wrap_AB
                          cf5(6)  -- Thru
                      }
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "The attachment configuration for the station or
                      concentrator (refer to ANSI SMT 9.7.4.3)."
              REFERENCE
                      "ANSI { fddiSMT 42 }"
              ::= { snmpFddiSMTEntry 16 }
3542.2rfc 1512NPSS::MDLYONSMichael D. Lyons DTN 226-6943Wed May 22 1996 09:5928
    ...or for those devices which support rfc 1512:
    
    
          fddimibSMTCFState OBJECT-TYPE
              SYNTAX  INTEGER {
                          cf0(1),   -- isolated
                          cf1(2),   -- local_a
                          cf2(3),   -- local_b
                          cf3(4),   -- local_ab
                          cf4(5),   -- local_s
                          cf5(6),   -- wrap_a
                          cf6(7),   -- wrap_b
                          cf7(8),   -- wrap_ab
                          cf8(9),   -- wrap_s
                          cf9(10),  -- c_wrap_a
                          cf10(11), -- c_wrap_b
                          cf11(12), -- c_wrap_s
                          cf12(13)  -- thru
                      }
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "The attachment configuration for the station or
                      concentrator (refer to ANSI SMT 9.7.2.2)."
              REFERENCE
                      "ANSI { fddiSMT 42 }"
              ::= { fddimibSMTEntry 20 }