Cisco OL-5490-01 Especificaciones Pagina 116

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4-22
Cisco AS5x00 Case Study for Basic IP Modem Services
11/24/1999
Section 4 Verifying Modem Performance
Initiating and Inspecting a V.90 Test Call
Parameter #33 PPP/SLIP packets transmitted, received: 0, 0
Parameter #35 PPP/SLIP packets received (BAD/ABORTED): 0
Parameter #36 EC packets transmitted, received OK: 565, 43
Parameter #38 EC packets (Received BAD/ABORTED): 2
Parameter #39 Robbed Bit Signalling (RBS) pattern: 0
Parameter #40 Digital Pad: 6.0 dB, Digital Pad Compensation:None
Line Shape:
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Table 4-5 describes the significant output fields (
bold
font) in the previous example:
Table 4-5 Show Modem Operational-Status Field Descriptions
Parameter Description
Parameter #6
Total Retrains: 0
Total retrains and speed shifts for the current
connection. There are no retrains.
Parameter #8
Connected Standard: V.90
V.90 modulation is negotiated.
Standard connect protocol which can be V.21, Bell03,
V.22, V.22bis, Bell212, V.23, V.32, V.32bis, V.32terbo,
V.34, V.34+, K56Flex, or V.90.
Parameter #9
TX, RX Bit Rate: 48000, 28800
The transmit speed (TX) is 48000 bps. The receive
speed (RX) is 28800 bps.
TX is the bit rate from the local DCE (NAS modem) to
the remote DCE (client modem). RX is the bit rate from
the remote DCE to the local DCE. V.90 uplink speed
tends to be lower than V.34 uplink speed.
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