User's Manual
Table Of Contents
- Chapter 1: Introduction 1-1
- Chapter 1: Introduction
- Chapter 2: Hardware Installation
- Chapter 3: Network Configuration
- Chapter 4: Initial Configuration
- Chapter 5: System Configuration
- Chapter 6: Command Line Interface
- Using the Command Line Interface
- Entering Commands
- Command Groups
- General Commands
- System Management Commands
- System Logging Commands
- System Clock Commands
- DHCP Relay Commands
- SNMP Commands
- snmp-server community
- snmp-server contact
- snmp-server location
- snmp-server enable server
- snmp-server host
- snmp-server trap
- snmp-server engine-id
- snmp-server user
- snmp-server targets
- snmp-server filter
- snmp-server filter-assignments
- show snmp groups
- show snmp users
- show snmp group-assignments
- show snmp target
- show snmp filter
- show snmp filter-assignments
- show snmp
- Flash/File Commands
- RADIUS Client
- 802.1X Authentication
- MAC Address Authentication
- Filtering Commands
- WDS Bridge Commands
- Spanning Tree Commands
- Ethernet Interface Commands
- Wireless Interface Commands
- interface wireless
- vap
- speed
- multicast-data-rate
- channel
- transmit-power
- radio-mode
- preamble
- antenna control
- antenna id
- antenna location
- beacon-interval
- dtim-period
- fragmentation-length
- rts-threshold
- super-g
- description
- ssid
- closed-system
- max-association
- assoc-timeout-interval
- auth-timeout-value
- shutdown
- show interface wireless
- show station
- Rogue AP Detection Commands
- Wireless Security Commands
- Link Integrity Commands
- IAPP Commands
- VLAN Commands
- WMM Commands
- Appendix A: Troubleshooting
- Appendix B: Cables and Pinouts
- Appendix C: Specifications
- Glossary
- Index
System Configuration
5-52
5
Fragmentation Length – Configures the minimum packet size that can be
fragmented when passing through the access point. Fragmentation of the PDUs
(Package Data Unit) can increase the reliability of transmissions because it
increases the probability of a successful transmission due to smaller frame size. If
there is significant interference present, or collisions due to high network utilization,
try setting the fragment size to send smaller fragments. This will speed up the
retransmission of smaller frames. However, it is more efficient to set the fragment
size larger if very little or no interference is present because it requires overhead to
send multiple frames. (Range: 256-2346 bytes; Default: 2346 bytes)
RTS Threshold – Sets the packet size threshold at which a Request to Send (RTS)
signal must be sent to a receiving station prior to the sending station starting
communications. The access point sends RTS frames to a receiving station to
negotiate the sending of a data frame. After receiving an RTS frame, the station
sends a CTS (clear to send) frame to notify the sending station that it can start
sending data.
If the RTS threshold is set to 0, the access point always sends RTS signals. If set to
2347, the access point never sends RTS signals. If set to any other value, and the
packet size equals or exceeds the RTS threshold, the RTS/CTS (Request to Send /
Clear to Send) mechanism will be enabled.
The access points contending for the medium may not be aware of each other. The
RTS/CTS mechanism can solve this “Hidden Node Problem.” (Range: 0-2347 bytes:
Default: 2347 bytes)