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Cisco Systems BC-109 SRB and Routing Certain Protocols Example, Multiport SRB Example, S1103a

Models: BC-109

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SRB and Routing Certain Protocols Example

SRB Configuration Examples

SRB and Routing Certain Protocols Example

In the following configuration, IP, XNS, and IPX are routed, while all other protocols are bridged between rings. While not strictly necessary, the Novell IPX and XNS network numbers are set consistently with the IP subnetwork numbers. This makes the network easier to maintain.

xns routing 0000.0C00.02C3

!

novell routing 0000.0C00.02C3

!

interface tokenring 0

ip address 131.108.129.2 255.255.255.0 xns network 129

novell network 129 source-bridge 129 1 130 source-bridge spanning multiring all

!

interface tokenring 1

ip address 131.108.130.2 255.255.255.0 xns network 130

novell network 130 source-bridge 130 1 129 source-bridge spanning multiring all

!

interface ethernet 0

ip address 131.108.2.68 255.255.255.0 xns network 2

novell network 2

Multiport SRB Example

Figure 56 shows an example configuration of a four-port Token Ring source-route bridge. Rings 1000, 1001, 1002, and 1003 are all source-route bridged to each other across ring group 7.

Figure 56 Four-Port Source-Route Bridge

	Ring
	1001
	T1
Ring T2	T0 Ring
1002	1000

T3

Ring Group 7	Ring
	Ring
	1003

S1103a

BC-148Bridging and IBM Networking Configuration Guide

Image 40

Cisco Systems BC-109 manual SRB and Routing Certain Protocols Example, Multiport SRB Example, S1103a

Contents

SRB Configuration Task List Configuring Source-Route BridgingConfigure Source-Route Bridging Configure a Dual-Port BridgeConfigure a Multiport Bridge Using a Virtual Ring Configure a Multiport Bridge Using a Virtual RingFigure 46 Multiple Dual-Port Bridges Define a Ring Group in SRB Context Configure SRB over FDDI Enable SRB and Assign a Ring Group to an InterfaceConfigure Fast-Switching SRB over FDDI Configure SRB over Frame RelayEnable the Forwarding and Blocking of Spanning-Tree Explorers BC-114 Bridging and IBM Networking Configuration Guidesource-bridge spanning Enable the Automatic Spanning-Tree Functionno source-bridge spanning Limit the Maximum SRB Hops bridge bridge-group protocol ibmsource-bridge spanning bridge-group source-bridge spanning bridge-group path-cost path-costConfigure Bridging of Routed Protocols Enable Use of the RIFConfigure a Static RIF Entry Configure the RIF Timeout IntervalOverview of SR/TLB The 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 Enable 0x80d5 Processing Enable Token Ring LLC2-to-Ethernet ConversionEnable Standard Token Ring LLC2-to-Ethernet LLC2 Conversion Configure NetBIOS Support Enable the Proxy Explorers Feature on the Appropriate Interface Specify Timeout and Enable NetBIOS Name CachingConfigure the NetBIOS Cache Name Length Enable NetBIOS ProxyingCreate Static Entries in the NetBIOS Name Cache Specify Dead-Time Intervals for NetBIOS PacketsConfigure LNM Support Configure LNM SupportConfiguring Source-Route Bridging BC-127 How a Router Works with LNM BC-128 Bridging and IBM Networking Configuration GuideDisable LNM Functionality Disable Automatic Report Path Trace Function Enable Other LRMs to Change Router ParametersPrevent LNM Stations from Modifying Cisco IOS Software Parameters lnm pathtrace-disabled all originApply a Password to an LNM Reporting Link Enable LNM ServersChange Reporting Thresholds lnm password number stringChange an LNM Reporting Interval Enable the RPS Express Buffer FunctionMonitor LNM Operation Configure NetBIOS Access Filters Using Station Names Configure NetBIOS Access FiltersSecure the SRB Network Configure NetBIOS Access Filters Using a Byte Offset netbios access-list host name permit deny patternnetbios access-list bytes name permit deny offset netbios input-access-filter bytes nameConfigure Administrative Filters for Token Ring Traffic Filter Frames by Protocol TypeFilter Frames by Vendor Code Filter Source AddressesFilter Destination Addresses source-bridge input-lsap-list access-list-numberConfigure Access Expressions that Combine Administrative Filters Configure Access Expressions Optimize Access ExpressionsAlter Access Lists Used in Access Expressions Tune the SRB NetworkEnable or Disable the Source-Route Fast-Switching Cache Enable or Disable the Source-Route Autonomous-Switching CacheEnable fast-switching Disable fast-switchingEnable or Disable the SSE Establish the Connection Timeout IntervalOptimize Explorer Processing Enable the SSE functionsource-bridge explorerq-depth depth Configure Proxy Explorers Establish SRB Interoperability with TI MAC FirmwareReport Spurious Frame-Copied Errors Monitor and Maintain the SRB NetworkSRB Configuration Examples Basic SRB with Spanning-Tree Explorers Example SRB with Automatic Spanning-Tree Function Configuration Example Optimized Explorer Processing Configuration ExampleSRB-Only Example SRB with Automatic Spanning-Tree Function Configuration ExampleMultiport SRB Example SRB and Routing Certain Protocols ExampleS1103a Configuration for Router A SRB with Multiple Virtual Ring Groups ExampleConfiguring Source-Route Bridging BC-149 SRB with Multiple Virtual Ring Groups ExampleSRB over FDDI Configuration Examples SRB over FDDI Fast-Switching ExampleConfiguration for Router B Router ASRB over Frame Relay Configuration Example Configuration of Router A Configuration on Router BConfiguration 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 ExampleBridge Now you are ready to determine two things SR/TLB with Access Filtering Example NetBIOS Support with a Static NetBIOS Cache Entry Example BC-156 Bridging and IBM Networking Configuration GuideLNM for a Simple Network Example LNM for a More Complex Network Example SRB Configuration ExamplesBC-158 Bridging and IBM Networking Configuration Guide Physical configurationNetBIOS Access Filters Example Filtering Bridged Token Ring Packets to IBM Machines Example BC-160 Bridging and IBM Networking Configuration GuideAdministrative Access Filters-Filtering SNAP Frames on Output Example Figure 68 shows a router connecting four Token RingsAdministrative Access Filters-Filtering SNAP Frames on Output Example Configuring Source-Route Bridging BC-161Creating Access Filters Example Access Filters Example Fast-Switching ExampleAccess Filters Example Figure 69 Network Configuration Using NetBIOS Access FiltersSRB Configuration Examples Autonomous Switching ExampleBC-164 Bridging and IBM Networking Configuration Guide