Demo entry 1061826

Un paquete de GSM

   

Submitted by anonymous on Jan 12, 2015 at 21:06
Language: YAML. Code size: 1.6 kB.

Frame 7274: 81 bytes on wire (648 bits), 81 bytes captured (648 bits) on interface 0
Ethernet II, Src: 00:00:00_00:00:00 (00:00:00:00:00:00), Dst: 00:00:00_00:00:00 (00:00:00:00:00:00)
Internet Protocol Version 4, Src: 127.0.0.1 (127.0.0.1), Dst: 127.0.0.1 (127.0.0.1)
User Datagram Protocol, Src Port: 44578 (44578), Dst Port: gsmtap (4729)
GSM TAP Header, ARFCN: 0 (Downlink), TS: 0, Channel: CCCH (0)
    Version: 2
    Header length: 16 bytes
    Payload Type: GSM Um (MS<->BTS) (1)
    Time Slot: 0
    ..00 0000 0000 0000 = ARFCN: 0
    .0.. .... .... .... = Uplink: 0
    Signal/Noise Ratio (dB): 0
    Signal Level (dBm): 0
    GSM Frame Number: 842070
    Channel Type: CCCH (2)
    Antenna Number: 0
    Sub-Slot: 0
GSM CCCH - Immediate Assignment
    L2 Pseudo Length
    Protocol Discriminator: Radio Resources Management messages
    Message Type: Immediate Assignment
    Page Mode
        .... 0000 = Page Mode: Normal paging (0)
    Dedicated mode or TBF
        0000 .... = Dedicated mode or TBF: This message assigns a dedicated mode resource (0)
    Channel Description
        0100 0... = SDCCH/8 + SACCH/C8 or CBCH (SDCCH/8), Subchannel 0
        .... .001 = Timeslot: 1
        001. .... = Training Sequence: 1
        ...0 .... = Hopping channel: No
        .... 00.. = Spare
        Single channel : ARFCN 605
    Request Reference
        Random Access Information (RA): 26
        1101 1... = T1': 27
        .... .100 001. .... = T3: 33
        ...0 0111 = T2: 7
        [RFN: 35835]
    Timing Advance
        Timing advance value: 1
    Mobile Allocation
    IA Rest Octets

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