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Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Linux
OL-1376-02
Chapter 6 Diagnostics
Overview
Table 6-3 describes each statistic that is displayed for your client adapter.
Table 6-3 Client Adapter Statistics
Statistic Description
Receive Statistics
Multicast Packets Received The number of multicast packets that were received successfully.
Broadcast Packets Received The number of broadcast packets that were received successfully.
Unicast Packets Received The number of unicast packets that were received successfully.
Bytes Received The number of bytes of data that were received successfully.
Beacons Received The number of beacon packets that were received successfully.
Total Packets Received OK The number of all packets that were received successfully.
Duplicate Packets Received The number of duplicate packets that were received successfully.
Overrun Errors The number of packets received when no receive buffers were
available. These errors usually occur when the host does not read
the received packets from the client adapter fast enough.
PLCP CRC Errors The number of times the client adapter started to receive an
802.11 Physical Layer Convergence Protocol (PLCP) header but
the rest of the packet was ignored due to a cyclic redundancy
check (CRC) error in the header.
PLCP Format Errors The number of times an 802.11 PLCP header was received with a
valid CRC but the rest of the packet was ignored due to an
unknown value in the header.
PLCP Length Errors The number of times an 802.11 PLCP header was received but the
rest of the packet was ignored due to an illegal header length.
MAC CRC Errors The number of packets that had a valid 802.11 PLCP header but
contained a CRC error in the data portion of the packet.
Partial Packets Received The number of fragments that were discarded because the entire
packet was not received successfully.
SSID Mismatches The number of times a packet was received by the radio that
contained an SSID field that does not match its own. Generally,
this applies to probe response and beacon packets and indicates
the possibility of some coverage overlap between two RF cells
having different SSIDs.
AP Mismatches The number of times a packet was received by the radio from an
access point that is not a specified parent but is using the same
SSID. Typically, this statistic is generated by access points not in
the specified parent that reply to probe requests. Beacons
transmitted by non-specified parent access points can also
increment this statistic.
Note See the specified access point 1– 4 parameter in Table 5-6
on page 5-17 for information on specifying access points.
- Guide for Linux 1
- CONTENTS 3
- Contents 4
- 5 Advanced Configuration 5-1 5
- 6 Diagnostics 6-1 5
- 7 Routine Procedures 7-1 5
- 8 Troubleshooting 8-1 6
- Japanese Translation D-7 7
- English Translation D-7 7
- Audience 10
- Organization 10
- Conventions 11
- Attention 12
- Avvertenza 12
- Advarsel 12
- Related Publications 13
- Obtaining Documentation 13
- Ordering Documentation 14
- Documentation Feedback 14
- Cisco.com 14
- Technical Assistance Center 15
- Cisco TAC Escalation Center 16
- Overview 17
- Terminology 18
- Parts of the Client Adapter 19
- Chapter 1 Overview 20
- Ad Hoc Wireless LAN 21
- Site Survey 22
- Preparing for Installation 25
- Safety Information 26
- Unpacking the Client Adapter 27
- System Requirements 27
- Site Requirements 28
- PCMCIA Installation 32
- Enter (Figure 3-3) 33
- Figure 3-7 Make All Screen 37
- Option 1 for Red Hat Systems 38
- Option 2 for Red Hat Systems 39
- Verifying Installation 41
- Inserting a PC Card 42
- Additional Procedures 44
- Opening the Client Utilities 46
- Selecting the Radio 47
- Enabling LEAP 52
- Using the Bcard Utility 53
- Finishing the Installation 54
- Enabling Security Features 55
- Server-Based Authentication 56
- Getting Started 56
- Changing the Password 56
- Entering a New WEP Key 57
- Selecting an Existing WEP Key 59
- Enabling WEP 59
- Message Integrity Check (MIC) 60
- Advanced Configuration 63
- Setting Enterprise Parameters 65
- Table 5-2 System Parameters 66
- Network Type Description 67
- Authentication Description 69
- Setting RF Network Parameters 71
- Data Rate Description 72
- Diagnostics 83
- Chapter 6 Diagnostics 85
- Receive Statistics 90
- Transmit Statistics 91
- Routine Procedures 93
- Ascertaining the ACU Version 94
- Selecting a Help Browser 95
- Loading New Firmware 95
- Uninstalling Manually 97
- Removing a PC Card 99
- Removing a PCI Client Adapter 99
- OL-1376-02 100
- Removing the Client Adapter 100
- Troubleshooting 101
- Using the Indicator LEDs 102
- Getting Help 104
- (Figure 8-3) 105
- Technical Specifications 107
- Power output 109
- Receiver sensitivity 109
- APPENDIX 113
- Channel Sets 114
- Translated Safety Warnings 117
- Warning for Laptop Users 119
- ¡Advertencia! 120
- Varning! 120
- Information 121
- Tested To Comply 122
- With FCC Standards 122
- FOR HOME OR OFFICE USE 122
- Canadian Compliance Statement 123
- Liechtenstein 124
- Japanese Translation 127
- English Translation 127
- GLOSSARY 129
- Glossary 130
- OL-1367-02 130
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