All MIBs › CISCO-LWAPP-TSM-MIB
Organization: Cisco Systems Inc.
Last Updated: 2012-01-31
Category: QoS, Wireless/WiFi
Description: Manages traffic stream metrics (TSM) measurements for QoS on Cisco LWAPP wireless networks.
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What Is CISCO-LWAPP-TSM-MIB?
CISCO-LWAPP-TSM-MIB reports Traffic Stream Metrics (TSM) for voice and video quality of service on Cisco LWAPP-based wireless LAN controllers, letting network management stations learn the observed audio/video traffic quality on WLANs. It belongs to the Cisco enterprise wireless QoS/voice-over-WLAN technology area, exposing per-radio (802.11a and 802.11b/g) configuration limits and per-client and per-uplink statistics tables. Its data is squarely performance-monitoring in nature: it tracks client-level and AP-uplink metrics such as packet loss, latency, and roaming counters that reveal degraded voice/video call quality rather than physical hardware health. It also enforces limits like the maximum number of TSM statistics entries and maximum clients tracked per radio interface, which matters for controller resource planning. This MIB depends on the underlying LWAPP/CAPWAP controller-to-AP architecture and is deployed in enterprise Wi-Fi networks carrying VoWLAN (voice over WLAN) traffic such as Cisco 792x wireless IP phones. Engineers can download the CISCO-LWAPP-TSM-MIB file directly to load it into their MIB browser.
IPNetwork Monitor allows you to monitor SNMP objects defined in CISCO-LWAPP-TSM-MIB. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.
Supported Devices
- Cisco wireless LAN controller
- Cisco lightweight access point serving VoWLAN clients
Monitoring Examples
An engineer polls cLTsmDot11ClientTable/cLTsmDot11ClientEntry keyed by cLTsmDot11ClientMacAddress to review a specific voice client's traffic stream metrics, and cross-references cLTsmDot11UplinkTable entries for the serving AP (cLTsmDot11UplinkApMacAddress) to see if degradation is client-side or AP-uplink-side. Consistently poor metrics on one uplink while clients elsewhere look healthy points to RF interference or backhaul congestion at that specific access point.
What Can Be Monitored
- per-client traffic stream metrics
- per-AP-uplink traffic stream metrics
- max clients tracked per radio interface
- TSM statistics table capacity
- 802.11a/b/g TSM configuration
This MIB depends on
Related MIBs
Imported Objects
From CISCO-LWAPP-AP-MIB
| cLApDot11IfSlotId | OBJECT-TYPE |
| cLApSysMacAddress | OBJECT-TYPE |
From CISCO-LWAPP-TC-MIB
| CLTsmDot11CurrentPackets |
From CISCO-SMI
| ciscoMgmt | OBJECT-IDENTITY |
From SNMPv2-CONF
| MODULE-COMPLIANCE | |
| OBJECT-GROUP |
From SNMPv2-SMI
| MODULE-IDENTITY | |
| OBJECT-TYPE | |
| Unsigned32 |
From SNMPv2-TC
| MacAddress | |
| TimeInterval | |
| TimeStamp | |
| TruthValue |
OIDs
| OID symbolic | OID numeric | Type | Access | Description |
|---|---|---|---|---|
| ciscoLwappTsmMIB | 1.3.6.1.4.1.9.9.525 | 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. Network management stations learn the audio/video traffic quality observed on WLANs through this MIB. 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. This MIB provides the information about the per-client /per-AP packet latency, packet jitter, packet loss and roaming time in the network which does affect quality of audio/video traffic. These parameters are called Traffic Stream Metrics. When TSM collection is enabled on all 802.11a/802.11b interfaces, the metrics are collected by controller from AP in every 90 seconds window. Information provided by this MIB can be used by the NMS applications to present measurements of audio and video traffic quality. 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 it to the controller to which it is logically connected. 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'. 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. Traffic Stream Metrics (TSM) These are parameters like the per-client / per-AP packet latency, packet jitter, packet loss and roaming time in the network, which does affect quality of audio/video traffic. These statistics are collected to study and characterize the pattern of data traffic and perform appropriate management tasks to regulate the same for the smooth functioning of the network. Channel Utilization (CU) The Channel Utilization is defined as the percentage of time, the QAP sensed the medium was busy, as indicated by either the physical or virtual carrier sense (CS) mechanism. Picc Picc is the time consumed by AP for receiving frames not destined to itself on a particular Radio interface from co-channel APs and Clients. Pib Pib is the time consumed by AP for receiving frames on a particular Radio interface which are not correctly de-modulated. 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 | ||
| ciscoLwappTsmMIBNotifs | 1.3.6.1.4.1.9.9.525.0 | |||
| ciscoLwappTsmMIBObjects | 1.3.6.1.4.1.9.9.525.1 | |||
| ciscoLwappTsmDot11Config | 1.3.6.1.4.1.9.9.525.1.1 | |||
| T/F cLTsmDot11aConfig | 1.3.6.1.4.1.9.9.525.1.1.1 | TruthValue | read-write | When this object is set to 'true', the associated APs send the controller, every 90 seconds, statistical data on traffic observed on their 802.11a interfaces. When this object is set to 'false', the APs stop sending statistical data on the 802.11a interfaces to the controller. |
| T/F cLTsmDot11bgConfig | 1.3.6.1.4.1.9.9.525.1.1.2 | TruthValue | read-write | When this object is set to 'true', the associated APs send the controller, every 90 seconds, statistical data on traffic observed on their 802.11b interfaces. When this object is set to 'false', the APs stop sending statistical data on the 802.11b interfaces to the controller. |
| U32 cLTsmDot11MaxClientsPerDot11Intf | 1.3.6.1.4.1.9.9.525.1.1.3 | Unsigned32 | read-write | The maximum number of clients per dot11 interface for which TSM statistics are collected. |
| U32 cLTsmDot11MaxTsmStatsEntries | 1.3.6.1.4.1.9.9.525.1.1.4 | Unsigned32 | read-write | The maximum number of entries that can be accommodated in the database to collect the traffic stream metrics received by the controller from the associated APs on uplink and downlink traffic. |
| ciscoLwappTsmDot11Stats | 1.3.6.1.4.1.9.9.525.1.2 | |||
| cLTsmDot11ClientTable | 1.3.6.1.4.1.9.9.525.1.2.1 | not-accessible | This table lists those clients for which TSM statistics are collected by the controller from the respective APs associated with the controller. A row is added to this table when an AP sends TSM statistics corresponding to a wireless client associated to it through one of its dot11 interfaces identified by cLApSysMacAddress and cLApDot11IfSlotId. The maximum number of entries per radio interface is given by cLTsmDot11MaxClientsPerDot11Intf. The oldest entry is deleted when the number of entries is to exceed the limit indicated by cLTsmDot11MaxClientsPerDot11Intf. | |
| cLTsmDot11ClientEntry | 1.3.6.1.4.1.9.9.525.1.2.1.1 | not-accessible | Each entry represents a conceptual row in cLTsmDot11ClientTable and uniquely identified by cLApSysMacAddress, cLApDot11IfSlotId and cLTsmDot11ClientIndex. | |
| U32 cLTsmDot11ClientIndex | 1.3.6.1.4.1.9.9.525.1.2.1.1.1 | Unsigned32 | not-accessible | This object uniquely identifies one client associated to the AP through the dot11 interface identified by cLApSysMacAddress and cLApDot11IfSlotId. |
| MAC cLTsmDot11ClientMacAddress | 1.3.6.1.4.1.9.9.525.1.2.1.1.2 | MacAddress | read-only | This object indicates the MAC address of the wireless client for which TSM statistics are collected. |
| cLTsmDot11UplinkTable | 1.3.6.1.4.1.9.9.525.1.2.2 | not-accessible | This table represents the statistics received by the controller from the associated APs, on the uplink traffic ( traffic from the 802.11 wireless client to the AP ) observed on the dot11 interfaces of the respective APs. For example, suppose a client with address 12:3f:73:99:de:5b connects to the 802.11 radio interface, 13:13:43:de:bb:ff of an AP at 18:30:00 hours. Assuming that cLTsmDot11aConfig (or cLTsmDot11bConfig) is set to 'true' for the respective type of interface, every 90 seconds, AP sends the controller statistical data for the client 12:3f:73:99:de:5b associated at the interface 13:13:43:de:bb:ff. So, after 3 minutes, i.e., 180 seconds, controller would have received statistics for the particular client and AP combination twice leading to two rows in this table as follows. 1> Client: 12:3f:73:99:de:5b Interface:13:13:43:de:bb:ff Time: 18:33:00 2> Client: 12:3f:73:99:de:5b Interface:13:13:43:de:bb:ff Time: 18:31:30 Now assume that, at 18:33:00, the client moves and associates with another AP associated to the same controller, at the AP's 802.11 interface 14:14:43:de:dd:ee. After 3 minutes, i.e., 180 seconds (say), controller would have again received statistics from the AP, for the particular client and new AP combination twice leading to two new rows in this table. At this point, this table will have entries with following references : 1> Client: 12:3f:73:99:de:5b Interface:14:14:43:de:dd:ee Time: 18:36:00 2> Client: 12:3f:73:99:de:5b Interface:14:14:43:de:dd:ee Time: 18:34:30 3> Client: 12:3f:73:99:de:5b Interface:13:13:43:de:bb:ff Time: 18:33:00 4> Client: 12:3f:73:99:de:5b Interface:13:13:43:de:bb:ff Time: 18:31:30 The maximum number of entries in this table is indicated by cLTsmDot11MaxTsmStatsEntries. When the specified limit of entries is reached the oldest entries will be removed to make room for new entries. However, the controller may remove the entries if it encounters memory shortage. | |
| cLTsmDot11UplinkEntry | 1.3.6.1.4.1.9.9.525.1.2.2.1 | not-accessible | Each entry represents a conceptual row in this table and corresponds to the uplink TSM statistics received from an AP, in a 90 second window (cLTsmDot11UplinkTimeStamp), for a mobile-station /client (cLClientMacAddress) associated with the AP at its 802.11 interface. | |
| MAC cLTsmDot11UplinkApMacAddress | 1.3.6.1.4.1.9.9.525.1.2.2.1.1 | MacAddress | not-accessible | This object represents the radio MAC address of the AP with which this client was associated when these statistics were observed. |
| U32 cLTsmDot11UplinkApIfSlotId | 1.3.6.1.4.1.9.9.525.1.2.2.1.2 | Unsigned32 | not-accessible | This object represents a slot number and uniquely identifies the dot11 interface of the AP along with cLTsmDot11UplinkApMacAddress with which the client indicated by cLTsmDot11ClientMacAddress was associated when these statistics were observed. |
| TIM cLTsmDot11UplinkTimeStamp | 1.3.6.1.4.1.9.9.525.1.2.2.1.3 | TimeStamp | not-accessible | This object indicates the value of sysUpTime at which these statistics were received from the AP. 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'. |
| NUM cLTsmDot11UplinkAvgPktQDelay | 1.3.6.1.4.1.9.9.525.1.2.2.1.4 | TimeInterval | read-only | The average packet queue delay in the upstream direction. |
| CLT cLTsmDot11UplinkLt10Packets | 1.3.6.1.4.1.9.9.525.1.2.2.1.5 | CLTsmDot11CurrentPackets | read-only | The number of packets transmitted by the client and received by the AP that experienced a delay of less than 10 ms. |
| CLT cLTsmDot11UplinkPktGt10Lt20Packets | 1.3.6.1.4.1.9.9.525.1.2.2.1.6 | CLTsmDot11CurrentPackets | read-only | The number of packets transmitted by the client and received by the AP that experienced a delay greater than or equal to 10 ms and less than 20 ms. |
| CLT cLTsmDot11UplinkPktGt20Lt40Packets | 1.3.6.1.4.1.9.9.525.1.2.2.1.7 | CLTsmDot11CurrentPackets | read-only | The number of packets transmitted by the client and received by the AP that experienced a delay greater than or equal to 20 ms and less than 40 ms. |
| CLT cLTsmDot11UplinkPktGt40Packets | 1.3.6.1.4.1.9.9.525.1.2.2.1.8 | CLTsmDot11CurrentPackets | read-only | The number of packets transmitted by the client and received by the AP that experienced a delay greater than 40 ms. |
| CLT cLTsmDot11UplinkLostPackets | 1.3.6.1.4.1.9.9.525.1.2.2.1.9 | CLTsmDot11CurrentPackets | read-only | This object indicates the number of lost upstream packets in the specified interval. |
| CLT cLTsmDot11UplinkTotalPackets | 1.3.6.1.4.1.9.9.525.1.2.2.1.10 | CLTsmDot11CurrentPackets | read-only | The number of upstream packets received in the specified interval. |
| CLT cLTsmDot11UplinkRoamingPackets | 1.3.6.1.4.1.9.9.525.1.2.2.1.11 | CLTsmDot11CurrentPackets | read-only | The number of packets exchanged for roaming negotiations in the specified interval. |
| NUM cLTsmDot11UplinkRoamingDelay | 1.3.6.1.4.1.9.9.525.1.2.2.1.12 | TimeInterval | read-only | The average roaming delay observed in the specified interval. |
| cLTsmDot11DnlinkTable | 1.3.6.1.4.1.9.9.525.1.2.3 | not-accessible | This table represents the statistics received by the controller from the associated APs, on the downlink traffic ( traffic from the AP to the 802.11 wireless client ) observed on the dot11 interfaces of the respective APs. For example, suppose a client with address 12:3f:73:99:de:5b connects to the 802.11 radio interface, 13:13:43:de:bb:ff of an AP at 18:30:00 hours. Assuming that cLTsmDot11aConfig (or cLTsmDot11bConfig) is set to 'true' for the respective type of interface, every 90 seconds, the AP sends the controller statistical data about the 12:3f:73:99:de:5b associated at the interface 13:13:43:de:bb:ff. So, after 3 minutes, i.e., 180 seconds, controller would have received statistics from the AP for the particular client and AP combination twice leading to two rows in this table as follows. 1> Client: 12:3f:73:99:de:5b Interface:13:13:43:de:bb:ff Time: 18:33:00 2> Client: 12:3f:73:99:de:5b Interface:13:13:43:de:bb:ff Time: 18:31:30 Now assume that, at 18:33:00, the client moves and associates with another AP associated to the same controller, at the AP's 802.11 interface 14:14:43:de:dd:ee. After 3 minutes, i.e., 180 seconds (say), controller would have again collected statistics for the particular client and new AP combination twice leading to two new rows in this table. At this point, this table will have entries as follows. 1> Client: 12:3f:73:99:de:5b Interface:14:14:43:de:dd:ee Time: 18:36:00 2> Client: 12:3f:73:99:de:5b Interface:14:14:43:de:dd:ee Time: 18:34:30 3> Client: 12:3f:73:99:de:5b Interface:13:13:43:de:bb:ff Time: 18:33:00 4> Client: 12:3f:73:99:de:5b Interface:13:13:43:de:bb:ff Time: 18:31:30 The maximum number of entries in this table is indicated by cLTsmDot11MaxTsmStatsEntries. When the specified limit of entries is reached the oldest entries will be removed to make room for new entries. However, the controller may remove the entries if it encounters memory shortage. | |
| cLTsmDot11DnlinkEntry | 1.3.6.1.4.1.9.9.525.1.2.3.1 | not-accessible | Each entry represents a conceptual row in this table and corresponds to the downlink TSM statistics received by the controller from an AP in a 90 second window (cLTsmDot11DnlinkTimeStamp), for a mobile-station/client associated with the AP at its 802.11 interface. | |
| MAC cLTsmDot11DnlinkApMacAddress | 1.3.6.1.4.1.9.9.525.1.2.3.1.1 | MacAddress | not-accessible | This object represents the radio MAC address of the AP with which this client was associated when these statistics were observed. |
| U32 cLTsmDot11DnlinkApIfSlotId | 1.3.6.1.4.1.9.9.525.1.2.3.1.2 | Unsigned32 | not-accessible | This object represents a slot number and uniquely identifies the dot11 interface of the AP along with cLTsmDot11DnlinkApMacAddress with which the client indicated by cLTsmDot11ClientMacAddress was associated when these statistics were observed. |
| TIM cLTsmDot11DnlinkTimeStamp | 1.3.6.1.4.1.9.9.525.1.2.3.1.3 | TimeStamp | not-accessible | This object indicates the value of sysUpTime at which these statistics were received from the AP. 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'. |
| NUM cLTsmDot11DnlinkAvgPktQDelay | 1.3.6.1.4.1.9.9.525.1.2.3.1.4 | TimeInterval | read-only | The average packet queue delay in the downstream direction. |
| CLT cLTsmDot11DnlinkLt10Packets | 1.3.6.1.4.1.9.9.525.1.2.3.1.5 | CLTsmDot11CurrentPackets | read-only | The number of packets transmitted by the AP and received by the client that experienced a delay of less than 10 ms. |
| CLT cLTsmDot11DnlinkPktGt10Lt20Packets | 1.3.6.1.4.1.9.9.525.1.2.3.1.6 | CLTsmDot11CurrentPackets | read-only | The number of packets transmitted by the AP and received by the client that experienced a delay greater than or equal to 10 ms and less than 20 ms. |
| CLT cLTsmDot11DnlinkPktGt20Lt40Packets | 1.3.6.1.4.1.9.9.525.1.2.3.1.7 | CLTsmDot11CurrentPackets | read-only | The number of packets transmitted by the AP and received by the client that experienced a delay greater than or equal to 20 ms and less than 40 ms. |
| CLT cLTsmDot11DnlinkPktGt40Packets | 1.3.6.1.4.1.9.9.525.1.2.3.1.8 | CLTsmDot11CurrentPackets | read-only | The number of packets transmitted by the AP and received by the client that experienced a delay greater than 40 ms. |
| CLT cLTsmDot11DnlinkLostPackets | 1.3.6.1.4.1.9.9.525.1.2.3.1.9 | CLTsmDot11CurrentPackets | read-only | This object indicates the number of lost downstream packets in the specified interval. |
| CLT cLTsmDot11DnlinkTotalPackets | 1.3.6.1.4.1.9.9.525.1.2.3.1.10 | CLTsmDot11CurrentPackets | read-only | The number of downstream packets received in the specified interval. |
| cLTsmDot11CUTable | 1.3.6.1.4.1.9.9.525.1.2.4 | not-accessible | This table represents Channel Utilization statistics received by the Controller from associated APs observed on the dot11 radio interfaces of the respective APs. A row is added to this table when an AP sends Channel Utilization metrics corresponding to its dot11 radio interfaces. The maximum number of entries per radio interface is represented by cLTsmDot11MaxTsmStatsEntries. The oldest entry is deleted when the number of entries exceeds the limit indicated by cLTsmDot11MaxTsmStatsEntries. | |
| cLTsmDot11CUEntry | 1.3.6.1.4.1.9.9.525.1.2.4.1 | not-accessible | Each entry represents a conceptual row in cLTsmDot11CUTable and uniquely identified by cLApSysMacAddress, cLApDot11IfSlotId and cLTsmDot11CUTimeStamp. | |
| TIM cLTsmDot11CUTimeStamp | 1.3.6.1.4.1.9.9.525.1.2.4.1.1 | TimeStamp | not-accessible | This object indicates the value of sysUpTime at which these statistics were received from the AP. 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'. |
| U32 cLTsmDot11CUFiftyPercentilePicc | 1.3.6.1.4.1.9.9.525.1.2.4.1.2 | Unsigned32 | read-only | This object represents the 50th percentile of Picc. Picc represents the percentage of time consumed by the AP for receiving frames on a particular radio interface from co-channel APs & clients. |
| U32 cLTsmDot11CUNinetyPercentilePicc | 1.3.6.1.4.1.9.9.525.1.2.4.1.3 | Unsigned32 | read-only | This object represents the 90th percentile of Picc. Picc represents the percentage of time consumed by the AP for receiving frames on a particular radio interface from co-channel APs & clients. |
| U32 cLTsmDot11CUFiftyPercentilePib | 1.3.6.1.4.1.9.9.525.1.2.4.1.4 | Unsigned32 | read-only | This object represents the 50th percentile of Pib. Pib represents the percentage of time consumed by the AP for receiving frames on a particular radio interface which cannot be correctly de-modulated. |
| U32 cLTsmDot11CUNinetyPercentilePib | 1.3.6.1.4.1.9.9.525.1.2.4.1.5 | Unsigned32 | read-only | This object represents the 90th percentile of Pib. Pib represents the percentage of time consumed by the AP for receiving frames on a particular radio interface which cannot be correctly de-modulated. |
| ciscoLwappTsmMIBConform | 1.3.6.1.4.1.9.9.525.2 | |||
| ciscoLwappTsmMIBCompliances | 1.3.6.1.4.1.9.9.525.2.1 | |||
| ciscoLwappTsmMIBCompliance | 1.3.6.1.4.1.9.9.525.2.1.1 | The compliance statement for the SNMP entities that implement the ciscoLwappTsmMIB module. | ||
| ciscoLwappTsmMIBComplianceRev01 | 1.3.6.1.4.1.9.9.525.2.1.2 | The compliance statement for the SNMP entities that implement the ciscoLwappTsmMIB module. | ||
| ciscoLwappTsmMIBGroups | 1.3.6.1.4.1.9.9.525.2.2 | |||
| ciscoLwappTsmDot11ConfigGroup | 1.3.6.1.4.1.9.9.525.2.2.1 | This collection of objects represent the status of traffic metrics collection on 802.11 networks. | ||
| ciscoLwappTsmDot11StatsGroup | 1.3.6.1.4.1.9.9.525.2.2.2 | This collection of objects represent the TSM statistics collected by the controller from the APs on the traffic observed on the 802.11 interfaces of the APs. | ||
| ciscoLwappTsmDot11StatsGroupSupR01 | 1.3.6.1.4.1.9.9.525.2.2.3 | This collection of objects represent the TSM statistics collected by the controller from the APs on the traffic observed on the 802.11 interfaces of the APs. This table is a supplement to ciscoLwappTsmDot11StatsGroup |
RFC description
Traffic Stream Metrics for Cisco wireless LWAPP controllers, monitoring audio/video quality on WLANs.
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