Tahoe 681 User Manual - 4.3.12
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giving separate values selected from 64-4864 kbps range for each
of the lines. The latter possibility is useful if the lines differ in their
quality.
New throughput will be set after entering “dsl reset” command.
¡
dsl type { master | slave } - sets the modem type - master or
slave. New mode is set after entering “dsl reset” command.
Always one modem should be set as a master, while the other one
as a slave.
¡
dsl mod { auto | tcpam32 | tcpam16 | tcpam8 | tcpam 4
| pam16 | pam8 | pam4 | pam2 } - selects line modulation.
The TCPAM32 modulation is recommended, as it is the most
efficient - the rest is available to provide compatibility with other
manufacturers’ devices. Moreover TCPAM32 allows throughputs
from 256 kbps to 4864 kbps per line, while TCPAM16 - from 64
kbps to 2304 kbps. The “auto” setting forces use of TCPAM32 for
speeds higher than or equal to 256 kbps per line and TCPAM16 for
lower rates.
¡
dsl reset - resets the DSL connection - the synchronization is
performed from the beginning
Entering “dsl” alone displays current settings.
4.3.9.
exit, quit
The command closes the configuration session and disconects
from the modem.
4.3.10.
fr
A group of commands used to configure the Frame Relay protocol
parameters. Following options are available:
¡
fr { ansi | q933a | cisco } - selects the LMI signaling: ANSI
®
T1.617 Annex D, ITU Q.933 Annex A or Cisco LMI
¡
fr t391
failed retries during the communication through the LMI, after
which the connection is considered as unusable
¡
fr n391
between subsequent LMI retries
¡
fr debug { on | off} - enables and disables sending the Frame
Relay debugging information through syslog
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4.3.11.
http
The “http” command configures the built-in WWW server. It is
used to provide an easy way to read modem’s statistics. Server can be
enabled or disabled by entering, respectively:
http on or http off
Moreover the access to the server may be limited by typing:
http host
Then the server is only reachable from the given IP address. To
remove the limitation a 0.0.0.0 address should be entered.
4.3.12.
ifconfig
The command allows configuring the network interfaces.
Following interfaces are available:
¡
eth0 - Ethernet interface
¡
eth0:0, eth0:1, etc. - eth0 interface aliases (one physical
interface may support several IP subnets)
¡
eth0.1, eth0.2, etc. - VLAN networks (LAN networks separated
from each other, although using the same cabling)
¡
eth0.1:0, eth0.1:1, etc. - VLAN interface aliases
¡
fr1, fr2, etc. - Frame Relay PVCs (the number after “fr” is the
DLCI of a given PVC)
¡
ppp0 - PPP interface used when the DSL link works in the PPP
mode
¡
wan0 - HDLC interface used when the DSL link works in the
®
Cisco HDLC mode
This command has similar syntax as the Linux “ifconfig”:
ifconfig
| dynamic ] [bridge { on | off } ]
The “ifconfig” alone displays information about the active
interfaces. Entering “ifconfig
about a certain interface. An information about interface’s IP address,
number of packets and bytes send and received, number of transmission
errors and other important data is displayed..