Cisco Systems BC-109 manual LNM for a Simple Network Example, Wayfarer# show lnm config

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LNM for a Simple Network Example

LNM for a Simple Network Example

Figure 65 shows a router with two Token Rings configured as a local source-route bridge.

Figure 65 Router with Two Token Rings Configured as a Local Source-Route Bridge

Physical configuration

Token	T1	Token
Ring 1	T0	Ring 3
	T0

Logical configuration

Token	SRB 2
Ring 1

Token Ring 3

S1115a

The associated configuration file follows:

interface tokenring 0 source-bridge 1 2 3

!

interface tokenring 1 source-bridge 3 2 1

The show lnm config command displays the logical configuration of this bridge, including the LNM configuration information that needs to be entered at the LNM Station. A sample show lnm config display follows:

Wayfarer# show lnm config

Bridge(s) currently configured:

From	ring	001, address 0000.3000.abc4
Across bridge		002
To	ring	003, address 0000.3000.5735

In this example, the MAC addresses 0000.3000.abc4 and 000.3000.5735 must be configured as Adapter Addresses at the LNM Station.

Configuring Source-Route Bridging BC-157

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Contents SRB Configuration Task List Configuring Source-Route BridgingConfigure a Dual-Port Bridge Configure Source-Route BridgingMultiple Dual-Port Bridges Configure a Multiport Bridge Using a Virtual RingSource-bridge ring-group ring-group Define a Ring Group in SRB ContextNo source-bridge ring-group ring-group Enable SRB and Assign a Ring Group to an Interface Configure SRB over FddiInterface fddi slot/port Source-bridge route-cache cbusConfigure SRB over Frame Relay Configure Fast-Switching SRB over FddiEnable the Automatic Spanning-Tree Function Limit the Maximum SRB Hops Enable Use of the RIF Configure Bridging of Routed ProtocolsConfigure the RIF Timeout Interval Configure a Static RIF EntryOverview of SR/TLB Following notes and caveats apply to all uses of SR/TLB Disable Fast-Switched SR/TLB Enable Bridging between Transparent Bridging and SRBEnable Translation Compatibility with IBM 8209 Bridges No source-bridge transparent ring-group fastswitchEnable 0x80d5 Processing Enable Token Ring LLC2-to-Ethernet ConversionEnable Standard Token Ring LLC2-to-Ethernet LLC2 Conversion Source-bridge sap-80d5 dsapConfigure NetBIOS Support Source-bridge proxy-netbios-only Specify Timeout and Enable NetBIOS Name CachingEnable NetBIOS Proxying Configure the NetBIOS Cache Name LengthCreate Static Entries in the NetBIOS Name Cache Specify Dead-Time Intervals for NetBIOS PacketsNetbios name-cache query-timeout seconds Configure LNM SupportNetbios name-cache recognized-timeout seconds LNM Linking to a Source-Route Bridge on Each Local Ring LAN Network Manager Monitoring and Translating How a Router Works with LNMDisable LNM Functionality Enable Other LRMs to Change Router Parameters Disable Automatic Report Path Trace FunctionEnable LNM Servers Apply a Password to an LNM Reporting LinkChange Reporting Thresholds Monitor LNM Operation Change an LNM Reporting IntervalLnm softerr milliseconds Configure NetBIOS Access Filters Using Station Names Configure NetBIOS Access FiltersSecure the SRB Network Netbios access-list host name permit deny pattern Configure NetBIOS Access Filters Using a Byte OffsetNetbios access-list bytes name permit deny offset Netbios input-access-filter bytes nameNetbios output-access-filter bytes name Configure Administrative Filters for Token Ring TrafficFilter Frames by Protocol Type Filter Source Addresses Filter Frames by Vendor CodeFilter Destination Addresses Access Expression Example Optimize Access Expressions Configure Access ExpressionsTune the SRB Network Alter Access Lists Used in Access ExpressionsEnable or Disable the Source-Route Fast-Switching Cache Establish the Connection Timeout Interval Enable or Disable the SSEOptimize Explorer Processing Controlling Explorer Storms in Redundant Network Topologies Establish SRB Interoperability with TI MAC Firmware Configure Proxy ExplorersMac-address ieee-address Monitor and Maintain the SRB Network Report Spurious Frame-Copied ErrorsSource-bridge tcp-queue-max number SRB Configuration ExamplesBasic SRB with Spanning-Tree Explorers Example Dual-Port Source-Route Bridge ConfigurationSRB-Only Example Optimized Explorer Processing Configuration ExampleMultiport SRB Example SRB and Routing Certain Protocols ExampleSRB with Multiple Virtual Ring Groups Example Configuration for Router aSRB over Fddi Fast-Switching Example SRB over Fddi Configuration ExamplesConfiguration for Router B Router aFrad Using SRB over Frame Relay to Connect to a Cisco Router SRB over Frame Relay Configuration ExampleConfiguration on Router B Configuration of Router aConfiguration on Router C Adding a Static RIF Cache Entry ExampleSR/TLB for a Simple Network Example Adding a Static RIF Cache Entry for a Two-Hop Path ExampleBC-154Bridging and IBM Networking Configuration Guide Example of a Bit-Swapped Address SR/TLB with Access Filtering ExampleSpecifying a Static Entry NetBIOS Support with a Static NetBIOS Cache Entry ExampleLNM for a Simple Network Example Wayfarer# show lnm configLNM for a More Complex Network Example NetBIOS Access Filters Example Filtering Bridged Token Ring Packets to IBM Machines Example Shows a router connecting four Token Rings Following access expression would result Creating Access Filters ExampleFast-Switching Example Access Filters ExampleAutonomous Switching Example