-- ******************************************************************* -- CISCO-LWAPP-DOT11-MIB.my -- January 2007, Devesh Pujari, Srinath Candadai -- -- Copyright (c) 2007 by Cisco Systems, Inc. -- All rights reserved. -- ******************************************************************* CISCO-LWAPP-DOT11-MIB DEFINITIONS ::= BEGIN IMPORTS MODULE-IDENTITY, OBJECT-TYPE FROM SNMPv2-SMI MODULE-COMPLIANCE, OBJECT-GROUP FROM SNMPv2-CONF TruthValue FROM SNMPv2-TC CLDot11Band, CLDot11ChannelBandwidth FROM CISCO-LWAPP-TC-MIB ciscoMgmt FROM CISCO-SMI; -- ******************************************************************** -- * MODULE IDENTITY -- ******************************************************************** ciscoLwappDot11MIB MODULE-IDENTITY LAST-UPDATED "200701040000Z" ORGANIZATION "Cisco Systems Inc." CONTACT-INFO "Cisco Systems, Customer Service Postal: 170 West Tasman Drive San Jose, CA 95134 USA Tel: +1 800 553-NETS Email: cs-wnbu-snmp@cisco.com" DESCRIPTION "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. This MIB provides the information about the operational parameters of the 802.11 networks. References about specific type of 802.11 flavors like 802.11a/b/g or 802.11n will be made whereever required to indicate that the respective parameters are applicable only to that particular type of 802.11 networks. 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. Gratuitous Probe Response (GPR) The Gratuitous Probe Response feature aids in conserving battery power of WLAN-enabled cell phones by providing a high rate packet on the order of tens of milliseconds such that these kind of phones can wake up and wait at predefined intervals, to reduce battery power. The GPR packet is transmitted from the AP at a predefined time interval. 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. TU A measurement of time in units of 1024 microseconds. 802.11n 802.11n builds upon previous 802.11 standards by adding MIMO (multiple-input multiple-output). MIMO uses multiple transmitter and receiver antennas to allow for increased data throughput through spatial multiplexing and increased range . A-MPDU An aggregated format that consists of several MAC Protocol Data Units being aggregated and transmitted in one PHY Service Data Unit. A-MSDU An aggregated format that consists of several MAC Service Data Units being aggregated and transmitted in one MAC Protocol Data Unit. Reduced Inter-Frame Space ( RIFS ) A time interval between multiple transmissions of a single transmitter used to reduce overhead and increase network efficiency. Modulation and Coding Scheme ( MCS ) This is a value that determines the modulation, coding and number of spatial channels. Each scheme specifies the modulation technique, coding rate , number of spatial streams etc and the corresponding data rate. Guard Interval Guard intervals are used to ensure that distinct transmissions do not interfere with one another. The purpose of the guard interval is to introduce immunity to propagation delays, echoes and reflections, to which digital data is normally very sensitive. Media Access Control ( MAC ) The Media Access Control Layer is one of two sublayers that make up the Data Link Layer. The MAC layer is responsible for moving data packets to and from one Network Interface Card (NIC) to another across a shared channel. 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. [3] Enhanced Wireless Consortium MAC Specification, v1.24. [4] Enhanced Wireless Consortium PHY Specification, v1.27." REVISION "200701040000Z" DESCRIPTION "Initial version of this MIB module." ::= { ciscoMgmt 612 } ciscoLwappDot11MIBNotifs OBJECT IDENTIFIER ::= { ciscoLwappDot11MIB 0 } ciscoLwappDot11MIBObjects OBJECT IDENTIFIER ::= { ciscoLwappDot11MIB 1 } ciscoLwappDot11MIBConform OBJECT IDENTIFIER ::= { ciscoLwappDot11MIB 2 } cldConfig OBJECT IDENTIFIER ::= { ciscoLwappDot11MIBObjects 1 } cldStatus OBJECT IDENTIFIER ::= { ciscoLwappDot11MIBObjects 2 } -- ******************************************************************** -- * High Throughput MAC Operations table -- ******************************************************************** cldHtMacOperationsTable OBJECT-TYPE SYNTAX SEQUENCE OF CldHtMacOperationsEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This table represents the operational parameters at the MAC layer for the 802.11n networks managed through the controller. An agent adds an entry to this table for every 802.11n band on startup." ::= { cldConfig 1 } cldHtMacOperationsEntry OBJECT-TYPE SYNTAX CldHtMacOperationsEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Each entry represents the operational parameters at the MAC layer for 802.11n networks." INDEX { cldHtDot11nBand } ::= { cldHtMacOperationsTable 1 } CldHtMacOperationsEntry ::= SEQUENCE { cldHtDot11nBand CLDot11Band, cldHtDot11nChannelBandwidth CLDot11ChannelBandwidth, cldHtDot11nRifsEnable TruthValue, cldHtDot11nAmsduEnable TruthValue, cldHtDot11nAmpduEnable TruthValue, cldHtDot11nGuardIntervalEnable TruthValue } cldHtDot11nBand OBJECT-TYPE SYNTAX CLDot11Band MAX-ACCESS not-accessible STATUS current DESCRIPTION "This object identifies the 802.11n band the parameters correspond to." ::= { cldHtMacOperationsEntry 1 } cldHtDot11nChannelBandwidth OBJECT-TYPE SYNTAX CLDot11ChannelBandwidth MAX-ACCESS read-write STATUS current DESCRIPTION "This object represents the channel bandwidth for the 802.11n networks in the particular band." DEFVAL { twenty } ::= { cldHtMacOperationsEntry 2 } cldHtDot11nRifsEnable OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-write STATUS current DESCRIPTION "This object is used to indicate the support for RIFS on this band. A value of 'true' indicates that RIFS is enabled for this band. A value of 'false' indicates that RIFS is disabled for this band." DEFVAL { true } ::= { cldHtMacOperationsEntry 3 } cldHtDot11nAmsduEnable OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-write STATUS current DESCRIPTION "This object is used to indicate the support for 802.11n A-MSDU on this band. A value of 'true' indicates that A-MSDU is enabled for this band. A value of 'false' indicates that A-MSDU is disabled for this band." DEFVAL { true } ::= { cldHtMacOperationsEntry 4 } cldHtDot11nAmpduEnable OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-write STATUS current DESCRIPTION "This object is used to indicate the support for 802.11n A-MPDU on this band. A value of 'true' indicates that A-MPDU is enabled for this band. A value of 'false' indicates that A-MPDU is disabled for this band." DEFVAL { true } ::= { cldHtMacOperationsEntry 5 } cldHtDot11nGuardIntervalEnable OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-write STATUS current DESCRIPTION "This object is used to indicate the support for 802.11n guard interval on this band. A value of 'true' indicates that guard interval is enabled for this band. A value of 'false' indicates that guard interval is disabled for this band." DEFVAL { true } ::= { cldHtMacOperationsEntry 6 } -- ******************************************************************** -- * Units of conformance -- ******************************************************************** ciscoLwappDot11MIBCompliances OBJECT IDENTIFIER ::= { ciscoLwappDot11MIBConform 1 } ciscoLwappDot11MIBGroups OBJECT IDENTIFIER ::= { ciscoLwappDot11MIBConform 2 } ciscoLwappDot11MIBCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "The compliance statement for the SNMP entities that implement the ciscoLwappDot11MIB module." MODULE -- this module MANDATORY-GROUPS { ciscoLwappDot11MIBMacOperGroup } ::= { ciscoLwappDot11MIBCompliances 1 } ciscoLwappDot11MIBMacOperGroup OBJECT-GROUP OBJECTS { cldHtDot11nChannelBandwidth, cldHtDot11nRifsEnable, cldHtDot11nAmsduEnable, cldHtDot11nAmpduEnable, cldHtDot11nGuardIntervalEnable } STATUS current DESCRIPTION "This collection of objects represents the operational parameters at the MAC layer for the 802.11n networks." ::= { ciscoLwappDot11MIBGroups 1 } END