HP MSR2000/3000/4000 Router Series Interface Configuration Guide

11
Step Command Remarks
1. Enter system view.
system-view N/A
2. Enter synchronous serial
interface view.
interface serial interface-number N/A
3. Configure a synchronous or
asynchronous serial interface
to operate as a synchronous
serial interface.
physical-mode sync
By default, a synchronous or
asynchronous serial interface
operates as a synchronous serial
interface.
4. (Optional.) Set the interface
description.
description text
By default, the description of a
synchronous serial interface is
interface name Interface, for
example, Serial2/0 Interface.
5. Set the link layer protocol.
link-protocol { hdlc | ppp } The default is PPP.
6. Set the digital signal coding
format.
code { nrz | nrzi }
The default is non-return-to-zero
(NRZ).
7. Set the baud rate.
baudrate baudrate
virtualbaudrate virtualbaudrate
The default is 64000 bps.
These commands are available to
synchronous/asynchronous serial
interface operating in
asynchronous mode only.
8. Set the clock selection mode.
• On DTE side:
clock { dteclk1 | dteclk2 |
dteclk3 | dteclk4 | dteclk5 |
dteclkauto }
• On DCE side:
clock { dceclk1 | dceclk2 |
dceclk3 }
The default is dceclk1 for DCE side
and dteclk1 for DTE side.
9. (Optional.) Set transmit-clock
or receive-clock signal
inversion on the DTE side.
invert { transmit-clock |
receive-clock }
By default, clock signal inversion is
disabled.
10. Set the MTU.
mtu size The default is 1500 bytes.
11. Set the CRC mode.
crc { 16 | 32 | none } The default is 16-bit CRC.
12. Set the number of interframe
filling tags.
itf number number The default is 4.
13. (Optional.) Enable level
detection.
detect dsr-dtr
By default, level detection is
enabled.
14. (Optional.) Enable data
carrier detection (DCD).
detect dcd By default, DCD is enabled.
15. (Optional.) Enable local
loopback.
loopback
By default, local loopback is
disabled.
16. Configure the polling interval.
timer-hold seconds The default is 10 seconds.
17. Set the line idle-code.
idle-code { 7e | ff } The default is 0x7E.
18. (Optional.) Enable RTS signal
reverse.
reverse-rts
By default, RTS signal reverse is
disabled.