Cisco 2431 - IAD Router - Interfaces; Half-Duplex Timer Commands

3-22
Cisco IAD2430 Series Integrated Access Devices Software Configuration Guide
OL-4306-03
Chapter 3 Configuring with the Command-Line Interface
Configuring a WIC-1DSU-T1/E1 Serial WAN Interface Card
Step 9
invert-txc
Example:
Router(config-if)# invert-txc
Cisco IADs that use long cables might experience high
error rates when operating at higher transmission speeds,
because the clock and data signals can shift out of phase.
If a DCE port is reporting a high number of bad packets,
inverting the clock by means of this command can often
correct the shift.
Step 10
nrzi-encoding
Example:
Router(config-if)# nrzi-encoding
All serial interfaces support both nonreturn to zero
(NRZ) and nonreturn to zero inverted (NRZI) formats.
NRZ is the default; NRZI is commonly used with
EIA/TIA-232 connections in IBM environments. To
enable NRZI encoding on an interface, enter this
command.
Step 11
exit
Example:
Router(config-if)# exit
Exits to global configuration mode.
Repeat Step 4 through Step 12 if your Cisco IAD has
more than one serial interface that you need to configure.
Step 12
Ctrl-z
Example:
Router#
Returns to enable mode when you finish configuring the
interfaces.
Ta b l e 3-1 Half-Duplex Timer Commands
Timer Syntax Default Setting (Milliseconds)
CTS delay
1
1. CTS = Clear To Send.
half-duplex timer cts-delay 100
CTS drop timeout half-duplex timer
cts-drop-timeout
5000
DCD drop delay
2
2. DCD = Data carrier detect
half-duplex timer
dcd-drop-delay
100
DCD transmission start delay half-duplex timer
dcd-txstart-delay
100
RTS
3
drop delay
3. RTS = Request To Send.
half-duplex timer
rts-drop-delay
100
RTS timeout half-duplex timer rts-timeout 2000
Transmit delay half-duplex timer
transmit-delay
0
Command or Action Purpose