IBM LLC2 DRIVER

As part of the SDLLC configuration on the router’s serial interface, the largest frame size the two media will support should be selected. The remote serial device is responsible for initiating connections. Only one Token Ring interface is used. A route is then established between the Token Ring host and the router. The cached entry is based on the best path at the time the session began. These represent control block space in the NCP simulating switched line as described earlier.

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This configuration has the following characteristics:. To reduce traffic on backbone networks and provide better performance, Token Ring nodes should send as large frames as possible.

Perform the remaining tasks as appropriate. You cannot configure the X. The remote serial device is responsible for initiating connections. After the SDLC device has been configured to send the largest possible I-frame, you must configure the router to support the same maximum I-frame size.

The default isbut that can be overridden with larger values.

Installing IBM LLC2 Protocol for Windows NT

Llc22 configure them, perform the following task in interface configuration mode: You must configure the router to define the Token Ring host as the partner of the serial device. The following sample configuration files describe the network shown in Figure The SNA session extends across the Token Ring and the serial line to provide an end-to-end connection.

  MEEP X2 DRIVER

If the router forwards this null XID to an X.

QLLC Conversion between a Single 37×5 and Multiple 3x74s The following configuration file configures the router to support the network topology shown in Figure The following configuration file configures the Router A in Figure These represent control block space in the NCP simulating switched line as described earlier.

A device that is locally attached to a Token Ring network can communicate through a router that is running the QLLC Conversion feature with a remote device that is attached to an X. If local acknowledgment is not enabled, these parameters are modified on the SDLC interface; if local acknowledgment is enabled, these parameters are modified on the Token Ring interface.

SDLC sessions are always locally acknowledged. The source-bridge command configures the router’s Token Ring 0 interface for local source-route bridging by associating the router’s virtual ring number with the ring number 1 of the local Token Ring and the bridge number 1 that uniquely identifies this bridge interface. In this configuration file, Router A uses an IP address of In the following example, two 3x74s on a Token Ring each attach to a different 37×5 on the other side of an X.

The LLC2 session is locally terminated at that router. This packet can be several thousand bytes long and the typical size for X. Figure shows a router configuration when the router directly connects the Token Ring and the serial line. Obm is only possible for a device that llc2 attached through a PVC, although most devices that are connected through X. The virtual MAC address of The tasks you perform differ somewhat depending on the type of virtual circuit you plan to support on the interface.

  G41T-M5 LAN DRIVER

In Figurenotice that the router’s X. The 37×5 FEP responds as if the 3×74 cluster controller were communicating over a Token Ring, whereas the 3×74 responds as though the 37×5 FEP were communicating over an X.

How an LLC2 connection is established over a LAN

This chapter describes the tasks you must perform to configure your router for IBM network media translation. The first task is required; all others are optional and depend on your specific needs. The router is configured with source-route bridging SRB.

In Figurenotice that the arbitrary WAN and the routers on either side of it form a single virtual ring, as configured using the source-bridge ring group global command. You only need to do so if the remote X. If LLC2 local acknowledgment is configured, it must be configured on the serial interface of the router on the 3×74 cluster controller side of the connection and on the Token Ring interface of the router on the 37×5 FEP side of the connection.