Chapter 17. Configuring and Monitoring LLC Interfaces
This chapter describes how to configure specific LLC interfaces in the router by
using either the interface commands or the GWCON interface command.
Logical Link Level can be thought of as a “sub-protocol”. It is not accessed directly
from either the Talk6 (configuration) or the Talk 5 (monitoring) environment.
Instead, it is accessed from the TokenRing, Point-to-Point (PPP), or Frame Relay
protocols by entering an LLC command.
This chapter includes the following sections:
v“Accessing the Interface Configuration Process”
v“Accessing the Interface Monitoring Process” on page238
v“LLC Monitoring Commands” on page239
v“LLC Configuration Commands”
Accessing the Interface Configuration Process
Access the configuration commands for the protocol you wish to configure over
LLC:
vTokenRing, as described in “Chapter 16. Configuring IEEE 802.5 Token-Ring
Network Interfaces” on page 225
vPoint-to-Point, as described in “Chapter 32. Using Point-to-Point Protocol
Interfaces” on page 449
vFrame Relay, as described in “Chapter30. Using Frame Relay Interfaces” on
page 387
Each of these prompt levels has an LLC command. Enter LLC to access the LLC
configuration commands and perform LCC configuration. When you are finished,
enter Exit to return to the prompt level for the protocol you are configuring.

LLC Configuration Commands

LLC configuration is required when you need to pass packets over an SNA network.
Toenter these commands, you must first enter the LLC configuration environment
(see “Accessing the Token-RingInterface Configuration Process” on page 225).
This section summarizes and then explains all of the LLC configuration commands.
These commands, shown in Table31, enable you to configure LLC when you need
to pass packets over a SNA network.
Table31. LLC Configuration Command Summary
Command Function
? (Help) Displays all the commands available for this command level or lists
the options for specific commands (if available). See “Getting Help”
on page 10.
List Displays the selected LLC configuration.
Set Sets the timers associated with LLC, and the size of the transmit
and receive windows.
© Copyright IBM Corp. 1994, 1998 235