ccCfgHistSemaphore

SYMBOL-CC-WS2000-MIB · .1.3.6.1.4.1.388.11.2.2.5.3

Object

Can be used to solve the multiple-manager problem.
Before performing any SETs, the manager reads this
value.  As a VAR-BIND of the only/last SET PDU,
this value is written with that value read.  If
some other manager had made changes, this value 
would have incremented, and the SET to it will 
fail.
          
Note that this only guards against other managers
that use this semaphore.  Changes made without
using this value will NOT be protected against.
For this reason, it is suggested that
ccCfgHistChangeCount also be SET - though that is
not a perfectly fail-safe semaphore, it will in
most cases protect even against this latter case.

Context

MIB
SYMBOL-CC-WS2000-MIB
OID
.1.3.6.1.4.1.388.11.2.2.5.3
Type
scalar
Access
readwrite
Status
current
Parent
ccCfgHist
Groups
3

Scalars have one instance, identified by the .0 suffix.

Read the scalar instance
/usr/bin/snmpget -v2c -c '<community>' -Pud -Ir -OQUv -m 'SYMBOL-CC-WS2000-MIB' -M '/opt/observium/mibs/symbol:/opt/observium/mibs/rfc:/opt/observium/mibs/net-snmp' 'udp:<hostname>:161' 'SYMBOL-CC-WS2000-MIB::ccCfgHistSemaphore.0'
More examples
Translate to a numeric OID
/usr/bin/snmptranslate -Pud -Ir -On -m 'SYMBOL-CC-WS2000-MIB' -M '/opt/observium/mibs/symbol:/opt/observium/mibs/rfc:/opt/observium/mibs/net-snmp' 'SYMBOL-CC-WS2000-MIB::ccCfgHistSemaphore'

Syntax

Source
SNMPv2-TCTestAndIncr
Base type
Integer32
Type Description
Represents integer-valued information used for atomic
operations.  When the management protocol is used to specify
that an object instance having this syntax is to be
modified, the new value supplied via the management protocol
must precisely match the value presently held by the
instance.  If not, the management protocol set operation
fails with an error of `inconsistentValue'.  Otherwise, if
the current value is the maximum value of 2^31-1 (2147483647
decimal), then the value held by the instance is wrapped to
zero; otherwise, the value held by the instance is
incremented by one.  (Note that regardless of whether the
management protocol set operation succeeds, the variable-
binding in the request and response PDUs are identical.)
          
The value of the ACCESS clause for objects having this
syntax is either `read-write' or `read-create'.  When an
instance of a columnar object having this syntax is created,
any value may be supplied via the management protocol.
          
When the network management portion of the system is re-
initialized, the value of every object instance having this
syntax must either be incremented from its value prior to
the re-initialization, or (if the value prior to the re-
initialization is unknown) be set to a pseudo-randomly
generated value.

Values & Constraints

Type Constraints
range: 0..2147483647