| OID symbolic | OID numeric | Type | Access | Description |
|---|
| ciscoLwappClRoamMIB | 1.3.6.1.4.1.9.9.523 | | | This MIB is intended to be implemented on all those
devices operating as Central controllers, that
terminate the Light Weight Access Point Protocol
tunnel from Cisco Light-weight LWAPP Access Points.
Information provided by this MIB is for CCX related
features as specified in the CCX specifications.
This MIB covers roaming RF parameters for CCX
clients.
The relationship between CC and the LWAPP APs
can be depicted as follows:
+......+ +......+ +......+
+ + + + + +
+ CC + + CC + + CC +
+ + + + + +
+......+ +......+ +......+
.. . .
.. . .
. . . .
. . . .
. . . .
. . . .
+......+ +......+ +......+ +......+
+ + + + + + + +
+ AP + + AP + + AP + + AP +
+ + + + + + + +
+......+ +......+ +......+ +......+
. . .
. . . .
. . . .
. . . .
. . . .
+......+ +......+ +......+ +......+
+ + + + + + + +
+ MN + + MN + + MN + + MN +
+ + + + + + + +
+......+ +......+ +......+ +......+
The LWAPP tunnel exists between the controller and
the APs. The MNs communicate with the APs through
the protocol defined by the 802.11 standard.
LWAPP APs, upon bootup, discover and join one of the
controllers and the controller pushes the configuration,
that includes the WLAN parameters, to the LWAPP APs.
The APs then encapsulate all the 802.11 frames from
wireless clients inside LWAPP frames and forward
the LWAPP frames to the controller.
GLOSSARY
Access Point ( AP )
An entity that contains an 802.11 medium access
control ( MAC ) and physical layer ( PHY ) interface
and provides access to the distribution services via
the wireless medium for associated clients.
LWAPP APs encapsulate all the 802.11 frames in
LWAPP frames and sends them to the controller to which
it is logically connected.
Basic Service Set ( BSS )
The IEEE 802.11 BSS of an AP comprises of the
stations directly associating with the AP.
Central Controller ( CC )
The central entity that terminates the LWAPP protocol
tunnel from the LWAPP APs. Throughout this MIB,
this entity is also referred to as 'controller'.
Cisco Compatible eXtensions (CCX)
Wireless LAN Access Points (APs) manufactured by Cisco
Systems have features and capabilities beyond those in
related standards (e.g., IEEE 802.11 suite of
standards ,Wi-Fi recommendations by WECA, 802.1X
security suite,etc). A number of features provide
higher performance.For example, Cisco AP transmits a
specific Information Element, which the clients adapt
to for enhanced performance. Similarly, a number of
features are implemented by means of proprietary
Information Elements, which Cisco clients use in
specific ways to carry out tasks above and beyond the
standard. Other examples of feature categories are
roaming and power saving.
Client Roaming
A client may decide to reassociate with another AP for
reasons of its own choosing. The decision of whether
or not to use the information contained in the AP list
is up to the discretion of the implementor, as long as
the roam time requirement is met.
Light Weight Access Point Protocol ( LWAPP )
This is a generic protocol that defines the
communication between the Access Points and the
Central Controller.
Mobile Node ( MN )
A roaming 802.11 wireless device in a wireless
network associated with an access point. Mobile Node
and client are used interchangeably.
REFERENCE
[1] Wireless LAN Medium Access Control ( MAC ) and
Physical Layer ( PHY ) Specifications
[2] Draft-obara-capwap-lwapp-00.txt, IETF Light
Weight Access Point Protocol |
| ciscoLwappClRoamMIBNotifs | 1.3.6.1.4.1.9.9.523.0 | | | |
| ciscoLwappClRoamMIBObjects | 1.3.6.1.4.1.9.9.523.1 | | | |
| clcrRoamDot11aRfParamConfig | 1.3.6.1.4.1.9.9.523.1.1 | | | |
| CLD clcrDot11aMode | 1.3.6.1.4.1.9.9.523.1.1.1 | CLDot11RfParamMode | read-write | This object specifies how the controller chooses
the values of the RF parameters needed to manage
roaming in 802.11a networks. |
| I32 clcrDot11aHysteresis | 1.3.6.1.4.1.9.9.523.1.1.3 | Integer32 | read-write | This object specifies how much stronger the signal
strength (dB) of a neighbor AP must be, in order
for the client to roam to it. The use of roaming
hysteresis is intended to reduce the amount of
clients roaming back and forth between BSSs if the
client is physically located on or near the border
between two BSSs.
This object is superceded by clcrDot11aHysteresisV2
clcrDot11aHysteresis object is superseded by clcrDot11aHysteresisV2. |
| I32 clcrDot11aAdaptiveScanThreshold | 1.3.6.1.4.1.9.9.523.1.1.4 | Integer32 | read-write | This object specifies the threshold for the
strength of the signals received(RSSI) from an AP,
as seen by an associated client, below which the
client must be able to roam to a neighbor AP within
the specified Transition Time configured through
clcrDot11aTransitionTime.
This object is superceded by clcrDot11aAdaptiveScanThresholdV2
clcrDot11aAdaptiveScanThreshold object is superseded by clcrDot11aAdaptiveScanThresholdV2. |
| NUM clcrDot11aTransitionTime | 1.3.6.1.4.1.9.9.523.1.1.5 | TimeInterval | read-write | This object specifies the maximum time duration
permitted for the client to detect a suitable
neighbor AP to roam to and to complete the roam,
whenever the RSSI from the clients associated AP
is below the adaptive scan threshold configured
through clcrDot11aAdaptiveScanThreshold. The time
is expressed in 100th of a second.
This object is superceded by clcrDot11aTransitionTimeV2
clcrDot11aTransitionTime object is superseded by clcrDot11aTransitionTimeV2. |
| I32 clcrDot11aHysteresisV2 | 1.3.6.1.4.1.9.9.523.1.1.7 | Integer32 | read-write | This object specifies how much stronger the signal
strength (dB) of a neighbor AP must be, in order
for the client to roam to it. The use of roaming
hysteresis is intended to reduce the amount of
clients roaming back and forth between BSSs if the
client is physically located on or near the border
between two BSSs. |
| I32 clcrDot11aAdaptiveScanThresholdV2 | 1.3.6.1.4.1.9.9.523.1.1.8 | Integer32 | read-write | This object specifies the threshold for the
strength of the signals received(RSSI) from an AP,
as seen by an associated client, below which the
client must be able to roam to a neighbor AP within
the specified Transition Time configured through
clcrDot11aTransitionTime. |
| NUM clcrDot11aTransitionTimeV2 | 1.3.6.1.4.1.9.9.523.1.1.9 | TimeInterval | read-write | This object specifies the maximum time duration
permitted for the client to detect a suitable
neighbor AP to roam to and to complete the roam,
whenever the RSSI from the clients associated AP
is below the adaptive scan threshold configured
through clcrDot11aAdaptiveScanThreshold. The time
is expressed in 100th of a second. |
| clcrRoamDot11bRfParamConfig | 1.3.6.1.4.1.9.9.523.1.2 | | | |
| CLD clcrDot11bMode | 1.3.6.1.4.1.9.9.523.1.2.1 | CLDot11RfParamMode | read-write | This object specifies how the controller chooses
the values of the RF parameters needed to manage
roaming in 802.11b/g networks. |
| I32 clcrDot11bHysteresis | 1.3.6.1.4.1.9.9.523.1.2.3 | Integer32 | read-write | This object specifies how much stronger the signal
strength (dB) of a neighbor AP must be, in order
for the client to roam to it. The use of roaming
hysteresis is intended to reduce the amount of
clients roaming back and forth between BSSs if the
client is physically located on or near the border
between two BSSs.
This object is superceded by clcrDot11bHysteresisV2
clcrDot11bHysteresis object is superseded by clcrDot11bHysteresisV2. |
| I32 clcrDot11bAdaptiveScanThreshold | 1.3.6.1.4.1.9.9.523.1.2.4 | Integer32 | read-write | This object specifies the threshold for the
strength of the signals received(RSSI) from an AP,
as seen by an associated client, below which the
client must be able to roam to a neighbor AP within
the specified Transition Time configured through
clcrDot11bTransitionTime.
This object is superceded by clcrDot11bAdaptiveScanThresholdV2
clcrDot11bAdaptiveScanThreshold object is superseded by clcrDot11bAdaptiveScanThresholdV2. |
| NUM clcrDot11bTransitionTime | 1.3.6.1.4.1.9.9.523.1.2.5 | TimeInterval | read-write | This object specifies the maximum time duration
permitted for the client to detect a suitable
neighbor AP to roam to and to complete the roam,
whenever the RSSI from the client is associated AP
is below the adaptive scan threshold configured
through clcrDot11aAdaptiveScanThreshold. The
time is expressed in 100th of a second.
This object is superceded by clcrDot11bTransitionTimeV2
clcrDot11bTransitionTime object is superseded by clcrDot11bTransitionTimeV2.. |
| I32 clcrDot11bHysteresisV2 | 1.3.6.1.4.1.9.9.523.1.2.7 | Integer32 | read-write | This object specifies how much stronger the signal
strength (dB) of a neighbor AP must be, in order
for the client to roam to it. The use of roaming
hysteresis is intended to reduce the amount of
clients roaming back and forth between BSSs if the
client is physically located on or near the border
between two BSSs. |
| I32 clcrDot11bAdaptiveScanThresholdV2 | 1.3.6.1.4.1.9.9.523.1.2.8 | Integer32 | read-write | This object specifies the threshold for the
strength of the signals received(RSSI) from an AP,
as seen by an associated client, below which the
client must be able to roam to a neighbor AP within
the specified Transition Time configured through
clcrDot11bTransitionTime. |
| NUM clcrDot11bTransitionTimeV2 | 1.3.6.1.4.1.9.9.523.1.2.9 | TimeInterval | read-write | This object specifies the maximum time duration
permitted for the client to detect a suitable
neighbor AP to roam to and to complete the roam,
whenever the RSSI from the client is associated AP
is below the adaptive scan threshold configured
through clcrDot11aAdaptiveScanThreshold. The
time is expressed in 100th of a second. |
| clcrRoamReasonReport | 1.3.6.1.4.1.9.9.523.1.3 | | | |
| clcrRoamReasonReportTable | 1.3.6.1.4.1.9.9.523.1.3.1 | | not-accessible | This table provides the reasons for CCX clients
roaming from one AP to another.
When a CCX client associates to an AP, it will always
send an IAPP information packet to the new AP listing
the characteristics of the previous AP.
An entry is added to this table when a roam reason
report is sent by a CCX client when it roams to a
new AP. |
| clcrRoamReasonReportEntry | 1.3.6.1.4.1.9.9.523.1.3.1.1 | | not-accessible | Each entry corresponds to the roam reason report
sent by a CCX client to the new AP to which client
associates. |
| MAC clcrRoamClientMacAddress | 1.3.6.1.4.1.9.9.523.1.3.1.1.1 | MacAddress | not-accessible | This object indicates the mac address of the
client which has roamed to a new AP. |
| TIK clcrRoamClientTimeStamp | 1.3.6.1.4.1.9.9.523.1.3.1.1.2 | TimeTicks | not-accessible | This object indicates the time instance at which
this report was received by the new AP, to which
client roamed to. This represents number of
seconds elapsed since 00:00:00 on January 1, 1970,
Coordinated Universal Time (UTC). So a value of
'1131362704' means 'Mon Nov 7 16:55:04 2005'. |
| MAC clcrRoamNewApMacAddress | 1.3.6.1.4.1.9.9.523.1.3.1.1.3 | MacAddress | read-only | This object indicates the mac address of the
current AP to which client has roamed to. This AP
receives the roam reason report. |
| MAC clcrRoamPrevApMacAddress | 1.3.6.1.4.1.9.9.523.1.3.1.1.4 | MacAddress | read-only | This object indicates the mac address of the
previous AP to which client was associated. |
| CLD clcrRoamPrevApChannel | 1.3.6.1.4.1.9.9.523.1.3.1.1.5 | CLDot11Channel | read-only | This object indicates the channel number at which
the client was associated to the previous AP. |
| OCT clcrRoamPrevApSsid | 1.3.6.1.4.1.9.9.523.1.3.1.1.6 | OCTET STRING | read-only | This object indicates the SSID at which the client
was associated to the previous AP. |
| NUM clcrRoamDisassocTimeInterval | 1.3.6.1.4.1.9.9.523.1.3.1.1.7 | TimeInterval | read-only | This object indicates the time elapsed since the
client disassociated, in hundredth of a second. |
| INT clcrRoamReason | 1.3.6.1.4.1.9.9.523.1.3.1.1.8 | INTEGER | read-only | This object indicates the reason for a client to
roam to a new AP.
The semantics are as follows.
clcrUnspecified - The reason is not known or can't
be found.
clcrPoorLink - Normal roam due to poor link
(excessive retries, too much interference, RSSI too
low, etc.)
clcrLoadBalancing - Normal roam due to load
balancing
clcrInsufficientCapacity - Roaming occured due to
the insufficient capacity on the previous AP
(TSPEC rejected)
clcrDirectedRoam - Roaming is directed by the
802.11 wireless Infrastructure
clcrFirstAssociation - This is the first
association to a particular WLAN
clcrRoamingIn - Roaming in from cellular or other
WAN
clcrRoamingOut - Roaming out to cellular or other
WAN
clcrBetterAp - Normal roam due to better AP found
clcrDisassociated - Deauthenticated or
Disassociated from the previous AP. |
| clcrRoamDot11Stats | 1.3.6.1.4.1.9.9.523.1.4 | | | |
| clcrDot11StatsTable | 1.3.6.1.4.1.9.9.523.1.4.1 | | not-accessible | This table populates the statistics collected when
the client roamed in the WLAN.
There exists a row in this table for each conceptual
row in cLApDot11IfTable that represents a dot11
interface of an AP. |
| clcrDot11StatsEntry | 1.3.6.1.4.1.9.9.523.1.4.1.1 | | not-accessible | Each entry represents a conceptual row in
clcrDot11StatsTable and corresponds to the roam
reason report sent by a CCX client to the new AP
which the client associates to. |
| C32 clcrDot11NeighborRequestRx | 1.3.6.1.4.1.9.9.523.1.4.1.1.1 | Counter32 | read-only | This object indicates the count of the number
of requests received from an E2E client for
neighbor updates. |
| C32 clcrDot11NeighborReplySent | 1.3.6.1.4.1.9.9.523.1.4.1.1.2 | Counter32 | read-only | This object indicates the count of the number
of replies sent to the client in reply to the
request for neighbor updates received from the
client. |
| C32 clcrDot11RoamReasonReportRx | 1.3.6.1.4.1.9.9.523.1.4.1.1.3 | Counter32 | read-only | This object reports the count of the number
of roam reason reports received from CCX
clients. |
| C32 clcrDot11BcastUpdatesSent | 1.3.6.1.4.1.9.9.523.1.4.1.1.4 | Counter32 | read-only | This object indicates the count of the number of
broadcast neighbor updates sent by an AP. |
| clcrRoamStats | 1.3.6.1.4.1.9.9.523.1.5 | | | |
| C32 clcrRoamIntraCountEx | 1.3.6.1.4.1.9.9.523.1.5.1 | Counter32 | read-only | This object indicates the count of successful
intra-WLC roaming. |
| ciscoLwappClRoamMIBConform | 1.3.6.1.4.1.9.9.523.2 | | | |
| ciscoLwappClRoamMIBCompliances | 1.3.6.1.4.1.9.9.523.2.1 | | | |
| clcrMIBCompliance | 1.3.6.1.4.1.9.9.523.2.1.1 | | | The compliance statement for the SNMP entities that
implement the ciscoLwappRoamMIB module. |
| clcrMIBComplianceRev1 | 1.3.6.1.4.1.9.9.523.2.1.2 | | | The compliance statement for the SNMP entities that
implement the ciscoLwappRoamMIB module. |
| ciscoLwappClRoamMIBGroups | 1.3.6.1.4.1.9.9.523.2.2 | | | |
| ciscoLwappClRoamDot11aRfParamsGroup | 1.3.6.1.4.1.9.9.523.2.2.1 | | | This collection of objects represent the radio
parameters for the 802.11a networks.
ciscoLwappClRoamDot11aRfParamsGroup object is superseded by ciscoLwappClRoamDot11aRfParamsGroupSup1. |
| ciscoLwappClRoamDot11bRfParamsGroup | 1.3.6.1.4.1.9.9.523.2.2.2 | | | This collection of objects represent the radio
parameters for the 802.11b/g bands.
ciscoLwappClRoamDot11bRfParamsGroup object is superseded by ciscoLwappClRoamDot11bRfParamsGroupSup1. |
| ciscoLwappClRoamroamReasonGroup | 1.3.6.1.4.1.9.9.523.2.2.3 | | | This collection of objects provide the reasons for
clients roaming between APs. |
| ciscoLwappClRoamroamingStatsGroup | 1.3.6.1.4.1.9.9.523.2.2.4 | | | This collection of objects provide the counters
related to roaming. |
| ciscoLwappClRoamDot11aRfParamsGroupSup1 | 1.3.6.1.4.1.9.9.523.2.2.5 | | | This collection of objects represent the radio
parameters for the 802.11a networks. |
| ciscoLwappClRoamDot11bRfParamsGroupSup1 | 1.3.6.1.4.1.9.9.523.2.2.6 | | | This collection of objects represent the radio
parameters for the 802.11b/g bands. |
