Filter
Top Products
A DTE cable is used when you are attaching the router to some type of
DCE device (for example, a modem or a DSU/CSU).
A DCE cable is used when the router is acting as the DCE and providing
the clocking for direct attachment.
clocking
internal
or
external
Configures the SRLY link’s clocking. To connect to a modem or DSU,
configure clocking as external. To connect directly to another DTE device,
use a DCE cable, set the clocking to internal, and configure the clock
speed. For internal clocking, you must enter a valid line speed in the range
2400 - 2048000 bits per second.
Example:
set clocking internal
encoding
nrz
or
nrzi
Configures the SRLY interface’s encoding scheme as NRZ (Non-Return to
Zero) or NRZI (Non-Return to Zero Inverted). NRZ is the default.
Example:
set encoding nrz
frame-size
Configures the maximum size of the frames that can be transmitted and
received on the data link. If this value is set to a larger value than that
specified with the add remote-secondary command, then this value is
changed to reflect that maximum. The IBM 2210 generates an ELS
message warning the user that this value is changing. The user will
continue receiving this ELS message until it is changed in the SRAM
configuration. Valid entries are shown in Table 67.
Note: The frame size must be large enough to accommodate the largest
frame received plus a 15–byte SRLY header.
Table 67. Valid Values for Frame Size in Set Frame-Size Command
Minimum Maximum Default
128 18000 2048
idle flag
Configures the transmit idle state for framing on the SRLY interface. The
default is the flag option which provides continuous flags (7E hex) between
frames.
The link will receive a flag idle transparently.
idle mark
Configures the transmit idle state for framing on the SRLY interface. The
mark option puts the line in a marking state (OFF, 1) between frames.
The link will receive a mark idle transparently.
speed For internal clocking, this command specifies the speed of the transmit and
receive clock lines. The range of speeds supported is 2400 - 2048000 bits
per second. If you want to use a line speed greater than 2048000, you can
only do this on:
v interface 1.
v port 1 of a 4-port WAN concentration adapter.
v ports 1 and 5 of an 8-port WAN concentration adapter.
Configuring and Monitoring SDLC Relay
Chapter 36. Configuring SDLC Relay 531
|
|
|
|
|
|
|
|
|
|
||
|
|
||