Description:
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ifAdminMIB MODULE-IDENTITY
LAST-UPDATED "200406100000Z"
ORGANIZATION "Mediatrix Telecom, Inc."
CONTACT-INFO "Mediatrix Telecom, Inc.
4229, Garlock Street
Sherbrooke (Quebec)
Canada
Phone: (819) 829-8749"
DESCRIPTION
"This MIB defines the administrative commands and status related to a
managed object. These objects are managed by the combination of three
attributes that are termed OSI States attributes.
This MIB follows ISO/IEC 10164-2 CCITT Recommendation X.731 with
the following interpretations and extensions.
The management state of a managed object represents the
instantaneous condition of availability and operability of the
associated resource from the management point of view.
Managed objects have a variety of state attributes that express
and control aspects of the operation of their associated
resource that are peculiar to each. However, the management
state is expected to be common to a large number of resources
and for this reason is standardized; it expresses key aspects
of their usability at any given time. We used three primary
factors to allocate the management state of a managed object.
These are:
operability : indicates whether the resource is
operational or not.
usage : indicates whether or not the resource is
actively in use at a specific instant, and if
so, whether or not it has spare capacity for
additional request at that instant.
administration : indicates the current maintenance state.
This attribute reflects the result of an
operator-initiated maintenance request.
The managed object status is closely related to the status of
its children. These status are affected by external events such
as administrative commands. The behavior of the managed object
to these events is explained below.
event : receive an administrative lock (graceful) command
for an interface:
1) The interface administrative state (groupAdminState)
is changed to SHUTTING DOWN.
2) All children are notified to set their usage state to
IDLE UNUSABLE gracefully.
3) The children change their usage state to IDLE UNUSABLE
as soon as their activities end.
4) When the usage state of all children has been set to
IDLE UNUSABLE, the usage state of the interface
(groupUsageState) is changed to IDLE UNUSABLE.
5) Its administrative state (groupAdminState) is
changed to LOCKED.
event : receive an administrative lock command (non graceful)
for an interface:
1) All children are notified to immediately set their
usage state to IDLE UNUSABLE.
2) The children abruptly change their usage state to
IDLE UNUSABLE.
3) When the usage state of all children has been changed to
IDLE UNUSABLE, the usage state of the interface
(groupUsageState) is changed to IDLE UNUSABLE.
4) Its administrative state (groupAdminState) is
changed to LOCKED
event : receive an administrative unlock command for an interface
1) All children are notified to set their usage state to
IDLE if:
* the child's administrative state is UNLOCKED
AND
* the administrative state of all its parents are
also UNLOCKED AND
* the operational state of the child is ENABLED AND
* all the operational states of all its parents are
also ENABLED.
2) The usage state of the interface (groupUsageState) is set
to IDLE if:
* all the administrative states of all its parents are
also UNLOCKED AND
* the operational state of the group is ENABLED AND
* all the operational states of all its parents are
also ENABLED.
3) The administrative state of the interface (groupAdminState)
is changed to UNLOCKED.
event : An operational problem is discovered with an interface
1) All children are notified to abruptly set their usage state
to IDLE UNUSABLE.
2) All children abruptly change their usage state to
IDLE UNUSABLE.
3) When the usage state of all children has been set to
IDLE UNUSABLE, the usage state of the interface
(groupUsageState) is changed to IDLE UNUSABLE.
4) Its operational state (groupOpState) is changed
to DISABLED.
event : An operational problem is resolved in an interface
1) All children are notified to set their usage state
to IDLE if:
* the administrative state of the child is
UNLOCKED AND
* the administrative state of all its parents are
also UNLOCKED AND
* the operational state of the child is ENABLED AND
* all the operational states of all its parents are
also ENABLED.
2) The usage state of the interface (groupUsageState) is changed
to IDLE if:
* the administrative state of the group is UNLOCKED AND
* the administrative state of all its parents are
also UNLOCKED AND
* all the operational states of all its parents are
also ENABLED.
3) Its operational state (groupOpState) is changed
to ENABLED."
-- ************************************************************************
-- Revision history
-- ************************************************************************
REVISION "200406100000Z"
DESCRIPTION
"Modify the list of ifAdminSetAdmin commands following addition
of the new ifAdminInitialAdminState variable that will now be
used to make ifAdminState permanent."
REVISION "0111280000Z"
DESCRIPTION
"November 28th, 2002
Added permanentForcelock as option for ifAdminSetAdmin. Also
added permanentLock as option for ifAdminAdminState.
August 27, 2001
Creation"
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