Cisco BC-281 - Manual

Cisco BC-281

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Table of Contents:

  • Page 2 – DLSw Standard; IP Multicast, page 282; IP Multicast
  • Page 3 – UDP Unicast; Peer groups and border peers
  • Page 4 – Local Acknowledgment
  • Page 5 – LLC2 Session without Local Acknowledgment; shows the LLC2 session with; LLC2 Session with Local Acknowledgment
  • Page 6 – Notes on Using LLC2 Local Acknowledgment
  • Page 7 – Avoid using NetBIOS applications on slow serial lines.; DLSw+ Support for Other SNA Features; In
  • Page 8 – VDLC Interaction with Higher-Layer Protocols; DLSw+ Configuration Task List; To configure DLSw+, complete the tasks in the following sections:; Defining a DLSw+ Local Peer for the Router; The following is a sample dlsw local peer statement:; Command
  • Page 9 – Defining a DLSw+ Remote Peer; TCP Encapsulation, page 289; TCP Encapsulation; Defines a remote peer with TCP encapsulation.
  • Page 10 – TCP/IP with RIF Passthrough Encapsulation; Defines a remote peer with FST encapsulation.
  • Page 11 – Direct Encapsulation; DLSw+ Lite is described in the; DLSw Lite Encapsulation; Defines a remote peer with direct encapsulation.; Defines a remote peer with DLSw Lite encapsulation.
  • Page 12 – Mapping DLSw+ to a Local Data-Link Control; Token Ring; Defines a virtual ring.; Defines SRB on interface.
  • Page 13 – Ethernet; SDLC
  • Page 14 – Refer to the; QLLC
  • Page 15 – The following configuration enables QLLC connectivity for DLSw+:; FDDI; Configuring Advanced Features; Scalability, page 296; Specifies an interface as an X.25 device.
  • Page 16 – according to those capabilities.; Scalability; Peer Groups and Border Peers
  • Page 18 – Enables peer groups and border peers.
  • Page 19 – Defines the maximum entries in a group cache.
  • Page 20 – Explorer Firewalls; Displays content of group, local and remote caches.; Tunes an existing configuration parameter.
  • Page 21 – The following command configures the SNA DDR feature:; Disables UDP Unicast.
  • Page 22 – LLC1 Circuits; Configures a dynamic peer.
  • Page 23 – Availability; Load Balancing, page 303; Configures promiscuous peer defaults.
  • Page 24 – for a sample configuration.; Adjusts the circuit weight on the remote peer.; Sets the time to wait for all stations to respond to explorers.
  • Page 25 – Ethernet Redundancy; Configures transparent redundancy.
  • Page 26 – Modes of Operation; Note
  • Page 27 – Network Management; Static Paths, page 309; DLSw+ Ring List or Port List; shows how port lists are used to map traffic.
  • Page 28 – Mapping Traffic Using Port Lists
  • Page 29 – Static Paths
  • Page 30 – Configuring DLSw+ Timers; Displays the DLSw+ configuration of a specific peer.
  • Page 31 – Monitoring and Maintaining the DLSw+ Network
  • Page 32 – DLSw+ Configuration Examples; The following sections provide DLSw+ configuration examples:
  • Page 33 – terminated, the ring group numbers do not have to be the same.; DLSw+ with Local Acknowledgment—Simple Configuration
  • Page 35 – Router C
  • Page 38 – Router E; DLSw+ with SDLC Multidrop Support Configuration Examples
  • Page 40 – DLSw+ Translation Between Ethernet and Token Ring
  • Page 41 – Router B; DLSw+ Translation Between FDDI and Token Ring
  • Page 42 – DLSw+ Translation Between SDLC and Token Ring Media Example; DLSw+ Translation Between SDLC and Token Ring Media
  • Page 44 – DLSw+ over Frame Relay Configuration Example; illustrates a DLSw+ configuration over Frame Relay with; DLSw+ over Frame Relay; The following configuration examples are based on
  • Page 45 – DLSw+ over QLLC Configuration Examples; The following three examples describe QLLC support for DLSw+.
  • Page 46 – Example 3; DLSw+ with RIF Passthrough Configuration Example; Network Configuration with RIF Passthrough
  • Page 47 – DLSw+ with Enhanced Load Balancing Configuration Example; shows DLSw+ with the Enhanced Load Balancing feature.; DLSw+ with Enhanced Load Balancing; RTR B
  • Page 48 – DLSw+ Peer Cluster Feature Configuration Example; DLSw+ Peer Cluster Feature; MPA; Peer cluster
  • Page 49 – DLSW+ RSVP Bandwidth Reservation Feature Configuration Example; DLSw+ RSVP Bandwidth Reservation Feature Configured; DLSWRTR 1
  • Page 50 – shows a DLSw+ border peer network configured with DLSw+ RSVP.; DLSw+ RSVP Bandwidth Reservation Feature in a Border Peer Network; DLSWRTR1
  • Page 51 – DLSw+ with Ethernet Redundancy Configuration Example; DLSw+ with Ethernet Redundancy
  • Page 52 – Router D; DLSw+ with Ethernet Redundancy in a Switched Environment
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BC-281

Cisco IOS Bridging and IBM Networking Configuration Guide

78-11737-02

Configuring Data-Link Switching Plus

This chapter describes how to configure data-link switching plus (DLSw+), Cisco’s implementation of
the DLSw standard for Systems Network Architecture (SNA) and NetBIOS devices. Refer to the DLSw+
Design and Implementation Guide for more complex configuration instructions. For a complete
description of the DLSw+ commands mentioned in this chapter, refer to the “DLSw+ Commands”
chapter of the Cisco IOS Bridging and IBM Networking Command Reference (Volume 1 of 2). To locate
documentation of other commands that appear in this chapter, use the command reference master index
or search online.

This chapter contains the following sections:

•

Technology Overview, page 281

•

DLSw+ Configuration Task List, page 288

•

Verifying DLSw+, page 310

•

Monitoring and Maintaining the DLSw+ Network, page 311

•

DLSw+ Configuration Examples, page 312

To identify the hardware platform or software image information associated with a feature, use the
Feature Navigator on Cisco.com to search for information about the feature or refer to the software
release notes for a specific release. For more information, see the “Identifying Platform Support for
Cisco IOS Software Features” section on page lv in the “Using Cisco IOS Software” chapter.

Technology Overview

DLSw+ is a method of transporting SNA and NetBIOS. It complies with the DLSw standard documented
in RFC 1795 and the DLSw Version 2 standard. DLSw+ is an alternative to RSRB that addresses several
inherent problems that exist in RSRB, such as:

•

SRB hop-count limits (SRB’s limit is seven)

•

Broadcast traffic (including SRB explorer frames or NetBIOS name queries)

•

Unnecessary traffic (acknowledgments and keepalives)

•

Data-link control timeouts

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Summary

Page 2 - DLSw Standard; IP Multicast, page 282; IP Multicast

Configuring Data-Link Switching Plus Technology Overview BC-282 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 DLSw Standard The DLSw standard, documented in RFC 1795, defines the switch-to-switch protocol between DLSw routers. The standard also defines a mechanism to terminat...

Page 3 - UDP Unicast; Peer groups and border peers

Configuring Data-Link Switching Plus Technology Overview BC-283 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 UDP Unicast DLSw Version 2 uses UDP unicast in response to an IP multicast. When address resolution packets (CANUREACH_EX, NETBIOS_NQ_ex, NETBIOS_ANQ, and DATAFRAME) ...

Page 4 - Local Acknowledgment

Configuring Data-Link Switching Plus Technology Overview BC-284 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 • UDP unicast support • Load balancing • Support for LLC1 circuits • Support for multiple bridge groups • Support for RIF Passthrough • SNA type of service feature su...

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