User's Manual

Table Of Contents
105
Users Manual of CS-6306R
5.2.12 Debugging LLC2 Link Information
The command is
Command Purpose
debug llc2 [packet|error|state]
Used for opening LLC2 debug switch.
Configuration mode: Management Mode
Packet -- Opening the debug switch of LLC2 link status information
Example, opening the debug switch of LLC2 link.
debug llc2 packet
debug llc2 state
debug llc2 error
5.2.13 Example of LLC2 Configuration
The number of LLC2 frame received before the response can be configured. For example, it is supposed that
two information frames are received at the time 0 rather than at the maximum number 3, the responses of
these frames are not sent. If the third frame that makes the router response is not received within 800 ms, the
response will be transmitted as the time-delay timer is activated.
interface interface e1/1
llc2 ack-max 3
llc2 ack-delay-time 800
In this connection, as it is told that all the frames are received, the counter that calculates the maximum
number of information frame is reset as 0.
5.2.14 Configuring SDLC as Two-Way and Concurrent Mode
SDLC two-way and concurrent mode allows master SDLC link station to use a full duplex serial circuit. When
an outstanding polling occurs, the master SDLC link station is able to send the data to the slave station. The
two-way and concurrent mode works only on the side of SDLC master station. In the slave link station, it
response to the polling sent from the master station.
SDLC two-way and concurrent mode runs in the multi-branch link environment or point-to-point link
environment.
In the multi-branch link environment, a two-way and concurrent master station is able to poll a slave station
and receive the data from the slave station and send the data (information frame) to other slave stations.
In the point-to-point link environment, so long as no maximum limit on reaching the window, a two-way and
concurrent master station is able to send the data (information frame) to the slave station even if there is an
outstanding polling.