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Cisco Cisco 5508 Wireless Controller 문제 해결 가이드

다운로드
페이지 중 4
Radio ID
• 
Group ID
• 
Management IP Address (of the Controller)
• 
Channel Count
• 
Antenna Pattern (Omni, Left, Diversity, Right)
• 
Measurement Interval
• 
Key
• 
Channels
• 
Power
• 
The LAPs encapsulate and forward to the controller any RRM neighbor packets they receive. This allows the
controller to form RF groups for the adjustment of the power and channels among LAPs that can see each
other. LAPs that are booting can use these RRM neighbor packets in order to discover the controller to which
neighbor LAPs are already joined.
RRM Neighbor Packet for 802.11a
Here is a sample RRM neighbor packet for 802.11a:
No.  Time               Source                Destination           
8313 23:39:20.169855117 00:14:1b:5a:40:10     01:0b:85:00:00:00     
Protocol Info
LLC      U, func=UI; SNAP, OUI 0x000B85 (Unknown), PID 0xCCCD
Frame 8313 (80 bytes on wire, 80 bytes captured)
    [Protocols in frame: wlan:llc:data]
IEEE 802.11
    Data Rate: 6.0 Mb/s
    Channel: 60
    Signal Strength: 0%
    Type/Subtype: Data (32)
    Frame Control: 0x0308 (Normal)
        Version: 0
        Type: Data frame (2)
        Subtype: 0
        Flags: 0x3
            DS status: Frame part of WDS from one AP to another AP 
                       (To DS: 1 From DS: 1) (0x03)
            .... .0.. = More Fragments: This is the last fragment
            .... 0... = Retry: Frame is not being retransmitted
            ...0 .... = PWR MGT: STA will stay up
            ..0. .... = More Data: No data buffered
            .0.. .... = Protected flag: Data is not protected
            0... .... = Order flag: Not strictly ordered
    Duration: 0
    Receiver address: 01:0b:85:00:00:00 (01:0b:85:00:00:00)
    Transmitter address: 00:14:1b:5a:40:1f (00:14:1b:5a:40:1f)
    Destination address: 01:0b:85:00:00:00 (01:0b:85:00:00:00)
    Fragment number: 0
    Sequence number: 487
    Source address: 00:14:1b:5a:40:10 (00:14:1b:5a:40:10)
    Frame check sequence: 0x84bab9b3 [correct]
Logical−Link Control
    DSAP: SNAP (0xaa)
    SSAP: SNAP (0xaa)
    Control field: U, func=UI (0x03)
        000. 00.. = Command: Unnumbered Information (0x00)
        .... ..11 = Frame type: Unnumbered frame (0x03)
    Organization Code: Airespace (0x000b85)
    Protocol ID: 0xcccd
Data (38 bytes)