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102 C
HAPTER
9: T
ROUBLESHOOTING
AND
M
AINTENANCE
Understanding ISDN
Information
The ISDN statistics provided are as follows.
Layer 1 status:
Indicates whether layer 1, the physical connection, of the ISDN
line is up or down. If layer 1 remains down after you attempt to place a call, there
may be a problem with your ISDN line. First, check to ensure that the correct cable
(labeled ISDN) is firmly connected to the ISDN LAN Modem and the wall jack. If the
problem remains, you should contact your telephone company.
Understanding Current
Call Information
The current call information provided is as follows.
Table 9
ISDN Line Information Description
Layer 1 status Indicates whether layer 1 of your ISDN line is up or down.
SPID 1 status Indicates whether SPID 1 is initialized.
SPID 2 status Indicates whether SPID 2 is initialized.
Table 10
Current Call Information Description
Current Call
Information
For This Call
Type
Description
Call type Data or voice Indicates the type of call (data or voice) and the
B channel rate (56 Kbps or 64 Kbps).
Call direction Data or voice Indicates whether the current call is incoming or
outgoing.
Service provider name Outgoing data Indicates the destination to which the current call is
connected.
IP address in use Data call Indicates the IP address assigned by the service
provider.
Primary DNS address Outgoing data Indicates the primary DNS address of the service
provider to which the current call is connected.
Secondary DNS address Outgoing data If a secondary DNS address is needed, indicates the
secondary DNS address of the service provider to
which the current call is connected. This field will be
empty if a secondary DNS address is not needed.
Data call options Data call If the current call is a data call, indicates the type of
data call, (Multilink PPP or PPP); number of B channels
in use for the call; whether compression is on or off,
authentication type, and whether BACP was
negotiated (on) or not (off). For example,
Multilink (2B) No-BACP/PAP/Compression-On.
Call start time Voice or data Displays the date and time the call began.
The call has been up for
(seconds)
Data call Indicates the length of time the current call has been
connected.
The connection has
been idle for (seconds)
Data call Indicates the length of time the current call has been
idle.
Number of octets
received
Data call Indicates the number of octets (bytes) received by the
ISDN LAN Modem.
Number of octets
transmitted
Data call Indicates the number of octets (bytes) transmitted by
the ISDN LAN Modem.
(continued)