RFC 1513 (rfc1513) - Page 3 of 55

Token Ring Extensions to the Remote Network Monitoring MIB

RFC 1513           Token Ring Extensions to RMON MIB      September 1993


   The syntax of an object type defines the abstract data structure
   corresponding to that object type.  The ASN.1[5] language is used for
   this purpose.  However, STD 16, RFC 1155 purposely restricts the
   ASN.1 constructs which may be used.  These restrictions are
   explicitly made for simplicity.

   The access-level of an object type defines whether it makes "protocol
   sense" to read and/or write the value of an instance of the object
   type.  (This access-level is independent of any administrative
   authorization policy.)

   The implementation-status of an object type indicates whether the
   object is mandatory, optional, obsolete, or deprecated.

2.  Guidelines for implementing RFC 1271 objects on a Token
    Ring network

   Wherever a MacAddress is to be used in this MIB the source routing
   bit is stripped off.  The resulting address will be consistently
   valid for all packets sent by a particular node.

2.1.  Host Group

   Only Token Ring isolating errors will increment the error counter for
   a particular hostEntry.  The isolating errors are: LineErrors,
   BurstErrors, ACErrors, InternalErrors, and AbortErrors.  ACErrors
   will increment the error counter only for the nearest upstream
   neighbor of the station reporting the error.  LineErrors and
   BurstErrors will increment the error counters for the station
   reporting the error and its neighbor upstream neighbor.
   InternalErrors and AbortErrors will increment the error counter for
   the station reporting the error only.  In addition, congestionErrors
   will also be counted for each hostEntry. These errors will be
   incremented in the host entry of the station that reports the errors
   in an error report frame.

   The hostOutPkts and hostOutOctets counters shall not be incremented
   for packets with errors.

2.2.  Matrix Group

   Error counters are never incremented.

2.3.  Filter Group

   The following conditions make up the status bitmask for token ring
   networks:




Waldbusser