User's Manual
76
Configuration Mode: Interface Configuration
Notes:
A LLC2 connective end sometimes needs to know the status of opposite end. For this purpose, a
command frame that requires a response from the opposite end needs to be sent. When the
opposite end receives the command frame, it will reply a response frame. If the error occurs in the
process, the send end will keep waiting. In order to avoid the situation, a clock needs to be enabled.
When the arrival time is hit, the clock will think that the error occurs and it will send a separate
command frame. The command is used for setting the time of waiting for the response of the
opposite end to the command frame.
Example: Setting 12 seconds as the time of waiting for the response of the opposite end.
int ethernet1/1
llc2 tpf-time 12
7.3.5 Configuring the Time of Rejection
The command is
Command Purpose
[
no
]
llc2 trej-time
[seconds] Used for controlling the time of waiting for the response
of remote end to the reject frame. The command “no”
can be used for restoring to the default value. Seconds:
The seconds of waiting when the remote end is
busy. The maximum is 60 seconds, the minimum is 1
second and the default is 3 seconds.
Configuration mode: Interface configuration
Notes:
The data receive and send on the two ends of LLC2 link is carried out on the set sequence. When
a LLC2 connective end receives I frame of opposite end whose sequence number is not the
expected one, it will send a REJ (reject) frame and enable a clock. If no response is made at the
arrival time, LLC2 link will be disconnected. The command is used for setting the time of waiting
for the response of the opposite end to the REJ (reject) frame.
Example: Setting 12 seconds as the waiting time.
int ethernet1/1
llc2 trej-time 12
7.3.6 Configuring the Redial Times
The command is
Command Purpose
[
no
]
llc2 n2 retry-count
Used for controlling the times of re-sending the frame.
The command “no” can be used for restoring to the
default value. retry-count:The times of resending frame.
The maximum is 255, the minimum is 1 and the default
is 8.
Configuration mode: Interface configuration
Notes:
When one end of LLC2 sends the data to the opposite end, it will wait for the acknowledgement of
the opposite end. If the opposite end does not send the acknowledgement within a given time, the
local end will resend the data. But the time of resend shall be limited. When the value of resend
times exceeds retry-count, LLC2 will be disconnected. The command is used for setting the times
of retry-count.