Virtual Ports over Frame Relay | 3Com SuperStack II, NETBuilder SI

66CHAPTER 6: BASIC CONFIGURATION OF PORTS AND PATHS

Virtual Ports over Frame Relay and X.25

Frame Relay and X.25 are peer-to-peer protocols that connect two nodes on the network. Boundary Routing and bridging, Internet Protocol-Open Shortest Path First (IP-OSPF), DECnet IV, VINES, and Xerox Network Systems (XNS) require virtual ports because they do not provide a method for dealing with Frame Relay or X.25 topologies where bridge/routers are not directly connected to all others (full mesh). With Boundary Routing system architecture, when you create a virtual port over a particular path, each remote network attached to the Frame Relay or X.25 cloud is treated as a separate network.

Internet Protocol-Routing Information Protocol (IP-RIP), Internetwork Packet Exchange (IPX), DECnet V, and AppleTalk can operate over partially meshed or nonmeshed Frame Relay or X.25 topologies without the use of virtual ports.

The next-hop split horizon feature in IP-RIP, IPX, and AppleTalk RTMP allows communication between bridge/routers that are not directly connected to one another. To conﬁgure next-hop split horizon for these routing protocols, you must have a list of neighbors, which can be dynamically generated or manually conﬁgured in IP-RIP. Next-hop split horizon is conﬁgured by adding static mappings to the address mapping table.

You can conﬁgure dynamic neighbor learning for IPX using the CONTrol parameter in the NRIP, SAP, and NLSP Services.

Although it is not necessary to deﬁne virtual ports on IP-RIP, IPX, or AppleTalk routers in partially meshed or nonmeshed Frame Relay or X.25 topologies, virtual ports do provide the following additional beneﬁts:

■A virtual port can be deﬁned for each conﬁgured neighbor, which allows you to set up such features as ﬁlters and routing policies on a per-neighbor basis.

■Virtual ports provide easier control over your network, turning your network into several point-to-point lines.

If you want your SuperStack II bridge/router to act as an Open System Interconnection (OSI) router in a Frame Relay or X.25 topology, you do not need to create virtual ports.

Image 66

3Com SuperStack II, NETBuilder SI manual Virtual Ports over Frame Relay

Contents

Using the SuperStack NETBuilder SI Bridge/Router Electromagnetic Compatibility Information Avis Canadien Canadian Certiﬁcation Notice CE Notice Page Contents Mounting Kit Installing on a Tabletop Isdn U Paths, Ports, and Virtual Ports Paths and Ports Setting Up SecurityConﬁguring Serial Ports with DTEs Where to Go From Here Multiple Static Paths per Port Virtual Ports Configuring Bridging and Routing Conﬁguring X.25 Scenario 1 Multiple Destinations, Nonmeshed 116 Using the Monitor Utility 121 Boot Conﬁgure Flash Load 122113 Dialing the Same Phone Number Multiple Times 122 Display Files Dump 125 LAN LEDs 148 Verifying the Memory Dump Procedure 149Reloading the Software Load Errors 143 179 177178 180 Ordering Dutch Isdn BRI Services 195 RS-530 DTE Cable Pinouts194 List conventions that are used throughout this guide About this GuideConventions Icon Alerts you to 3Com Year 2000 Web YearCompliance Text Conventions Features of the SuperStack II NETBuilder SI Bridge/Router Features and SpecificationsFeatures Feature Description Back and Front Panels Model DIP Switches Front panel and are for 3Com use only Reset Button Serial DeviceRequirements Features and Specifications Overview Using the BRIDGE/ROUTER Your NetworkUsing Ethernet LAN Ports Using the BRIDGE/ROUTER in Your Network Telco Services Using PPP on Dial-Up and Leased Lines Using Packet-Switched Network ServicesPacket-Switched Services Telco Services Using the BRIDGE/ROUTER in Your Network Equipment Installing the HardwareRequired Bridge/router Provides the environmental requirements of the SuperStack EnvironmentalFor more information on cables, see Appendix D Bridge/routers Mounting Bridge/RouterBrackets, or mount the bridge/router in a rack Brackets Stacking Bridge/Routers Mounting the Bridge/Router Following WAN ports Isdn S/T 43x and 53x, Isdn U 44x ConnectorsCabling Functional Connector Model 43x and 53x Isdn S/T Models 44x and 54x bridge/routers have an Isdn U connectorModel 44x and 54x Isdn U T1/FT1 Telco port uses an RJ-48 connector Model 45x and 54x 56/64K CSU/DSUModel 46x and 56x T1/FT1 Model Attaching a Redundant PowerRedundant Power System RPS System Shutting Down Power switchCharacteristic Setting Turn on the device Installing the Hardware Installing or Removing AN Interface Module RemovingCover Remove the cover Model Removing anExisting Module These steps Reinstall the cover and the cover screws Move the jumper to the right-hand set of pins Module ModelRemove the screw from the standoff if necessary Insert the new module Removing an Front panel Move the jumper to Left-hand set of pins Steps Installing a New5xx Remove the screw from the standoff if necessary Front panel Connectors Installing a New Module Model 5xx Installing or Removing AN Interface Module Turning on Logging on and Performing Administrative TasksAdministrative Task Summary Other end to the RPS LED Status at Successful Startup Status Attaching a Console Logging on to Logging on and Performing Administrative Tasks To use the menu-driven interface, follow these steps If you have not selected a particular service, enterTo use the command-line interface, follow these steps Interface For more information on syntax, see Appendix C Changing the Root PasswordAccessing and executing software commands and parameters Return key Port Baud Rate Default ConsoleChanging Adding User Setting the Time and Date Setting SystemInformation DELete -SNMP COMmunity anycom ADD -SNMP COMmunity anycom RO Basic Configuration of Ports Paths Relationship Between Physical Paths and Logical Ports Port and Path Options Option Description Topologies that Require Virtual Ports Node That Virtual Ports Virtual Ports over Frame Relay Virtual Ports over PPP Connectivity in Partially Meshed and Nonmeshed TopologiesProtocol Technique Parent Ports for Frame Relay SuperStack II bridge/router Path and PortNumbering Path and Port Numbering for Model 43x , 44x, 53x, On the WAN Port Conﬁguring Ethernet Paths PortsConﬁguring Isdn 43x, 44x, 53x, Conﬁguring Isdn Europe, Australia Asia Isdn Switch Types Supported SwitchType Setting Country or Region Example Toggle the respective paths by entering Re-enable the path by entering Conﬁguring the 56/64 Kbps CSU/DSU WAN Port Model 45xConﬁguring the T1/FT1 RJ-48 Telco Port Model 46x Set the baud rate 56 or 64 kbps for the DS0 channel using Set the path clock usingRe-enable the path using Set the owner of the serial port using Line type leased Routing Where to Go FromHere Port and path conﬁguration Basic Configuration of Ports and Paths Advanced Configuration Ports and Paths Bandwidth Management Features for Dial-Up LinesBandwidth Management Feature Description Isdn on the WAN Port 43x, 44x, 53x Scenario 1 Using Each B Channel Separately Start here Scenario 2 Using Both B Channels Together Scenario 3 Connecting to Multiple Destinations Call Berkeley Multiple destinations connect with a dial pool 128 K 28.8 K Scenario 1 Single Destination per Port PaloAlto Scenario 2 Multiple Destinations Andover Princeton Management for PPP Setting Normal Bandwidth Kbps. Show the normal bandwidth for a port usingSet the normal bandwidth if required using Using Manual Dial Place the call usingEnabling Dial-On-Demand Conﬁguring Bandwidth-On-Demand Conﬁgure the back-up line for disaster recovery only using Conﬁguring Disaster RecoveryEnable disaster recovery using Conﬁgure the dial number list for the back-up line using Site B Site C Conﬁguring Frame Relay Port !5 path Trafﬁc from one site to another over the same parent port Site a Configuring X.25 311041501111 Conﬁgure other protocols, see Using Enterprise OS Software See to conﬁgure bridging, IP routing, and IPX routing. To Advanced Configuration of Ports and Paths Configuring Bridging Routing To enable bridging, enter Conﬁguring IP Routing Enable IP routing by entering IP Routing To delete a static route, use Routing Between Gateways Subnet Masks Adding a Route Statically in a Subnet Masked Environment To enable Ospf on a speciﬁed port, use Override Option Using a Static Route Using OspfOspf over Dial-On-Demand Dial-Up Lines SHow -IP NETaddr Conﬁguring IPX Routing Deﬁning a Default Route Customizing Your Software Naming Paths and PortsTo provide a name for your path and port, use Module Autobaud Feature Working with Dial Number Lists Phone number is case-sensitive and must be matched exactly CSU/DSU Port Using Statistics on56/64 Kbps 45x Using Statistics on the T1/FT1 RJ-48 Telco Port 46x Network Statistics Displays similar to the following will appear Displays similar to the following appear when you enter StatisticsDisplay similar to the following appears Compression Show all T1/FT1 parameters conﬁgured usingConﬁguring Data T1/FT1 Parameter Customizing Your Software Boot TroubleshootingUsing the Monitor Utility Display Files Conﬁgure Flash LoadClear Eeprom Dump Flash Load Repeat Last CommandReset Help Bridge/router LEDs Normal LEDMeanings System LEDs The following ﬁgure describes the system LEDs WAN LAN LEDs The following ﬁgure describes the LAN LEDs Action Reload the software. See Appendix B Meaning ﬁle system is empty ActionMeaning Reload the software. See Appendix B Action Follow these steps At the monitor prompt, enter Default path isImage names do not match Meaning File too large Action Meaning File read or decompression error Action Meaning File checksum error ActionMeaning Unspeciﬁed fatal error Action Connected correctly to the Ethernet network Meaning Unable to transmit Bootp request ActionConﬁguration and verify the media access control MAC Be present or is incorrectly conﬁgured Conﬁgured Power off and then on again to retry the system softwareBe incorrectly conﬁgured Load. If the load is unsuccessful, contact your network Phase Eeprom checksum test failedContact your network supplier WAN Performing Loopback Tests Conﬁgure the ports for loopback testing by entering To dial path 3.1 from path 3.2, enter Disconnect the call by entering Start the DLtest usingStop the DLTest by entering Change the port owner from loopback to PPP by entering To disable V.54 detection, enter Start the loopback test by enteringTo stop the loopback test, enter Performed Select the loopback test mode by enteringCSU/DSU Port 55x bridge/router 45x Set the owner of the WAN port to loopback by entering Specify the number of seconds that the test should run using Stop the loopback test by entering Enable the port by entering To turn on autobaud, enter To start the remote DSU loopback test on path 2, enter Start remote loopback test usingTo start the remote CSU loopback test on path 2, enter To view the status of the loopback test in progress, enter T1/FT1 Port 56x bridge/router 46x T1/FT1 Port Reenable the WAN port by enteringEnable V.54 signal detection by entering Supports ATT On the T1/FT1 Port Performing a Loopback Test on a Serial Port Start the serial loopback test by entering Memory Dump Stop the serial loopback test by entering Select Dump Destination Following options are available SysInfo See the Unix system documentation if you have any problems To create a memory dump ﬁle, follow these steps System responds with the following information Appendix a Troubleshooting Reloading the System B Software ReloadingSoftware Load Errors Syntax Conventions Full Form Syntax Command Syntax Symbols SymbolsCommand syntax. These symbols are summarized in Table SymbolDescription Full Abbreviated SyntaxExamples Command Syntax Variations Command Lines Using AliasesService Names Entering Command History Substitution Syntax Variation Privilege LevelISDN-Related Models 43x With different options as described in Table Getting HelpAsterisk, for example Online Help Syntax Summary SYS? Appendix C Syntax Conventions Cables Connectors and CablesConsole Connector PC Cable Pin to 25-pin Terminal Cable Null Modem-Type Either 10BASE-T or 100BASE-TX cabling LAN ConnectorEthernet Connector To full router software, the second port will be functional Cable Support and Emissions Compliance Cabling StandardsCreating a Valid Network Emissions Compliance Shows examples of collision domain diameters For expanded guidelines, refer to the Ieee Standard Collision Domain Diameter with No Repeater Collision Domain Diameter with Two Repeaters Maximum Cable Length in Example Collision Domain Diameters Shows the pin assignments of the Isdn S/T cable Shows the pinouts of the Isdn U cable CSU/DSU Cable Serial Connectors Flex-WAN Cables RJ-48S male shielded Name Abbr Connecting the Bridge/Router to a DTE Using a DCE Cable Flex-WAN Cables Cable Length Cable Type Part Number Pinouts10 ft Pinouts RS-232 DTE Cable Pinouts Flex-WAN and RS-232 DCE Connectors Flex-WAN Connector Signal Pin Direction Twisted Pair Flex-WAN and V.35 DTE Connectors 35 DTE Cable Pinouts Flex-WAN and V.35 DCE Connectors 35 DCE Cable Pinouts Flex-WAN and X.21 DTE Connectors 21 DTE Cable Pinouts Flex-WAN and X.21 DCE Connectors 21 DCE Cable Pinouts Flex-WAN and RS-449 DTE Connectors RS-449 DTE Cable Pinouts Flex-WAN and RS-449 DCE Connectors Flex-WAN and RS-530 DTE Connectors RS-449 DCE Cable Pinouts Flex-WAN Connector RS-530 DTE Connector Signal Pin Direction Canadian Isdn BRI Services Provisioning Your Isdn Line Isdn Switch Type AT&T 5ESS NI1 AT&T 5ESS Custom DMS 100 and National Isdn Siemens Ewsd AT&T 5ESS SwitchOrdering Isdn Service for an AT&T 5ESS Switch 189 AT&T 5ESS Custom Switch Required Information SpecificationDN must be set as follows Parameter Setting Ordering Isdn Service for a DMS 100 Switch DMS 100 and National Isdn191 Siemens Ewsd Switch Ordering Isdn Service for a Siemens Ewsd Switch NT1s and Power Supplies Isdn BRI Services Ordering Dutch Appendix E Provisioning Your Isdn Line Technical Support Online Technical3Com FTP Site Hours a day, 7 days a week Access by Analog ModemAccess by Digital Modem 847 262 Support from Your Network SupplierSupport from 3Com North America Country Telephone Number Fax Number Page Index Numerics Isdn Index Ipxwan 109 Isdn Index Snmp DCE connector described Index 3Com Corporation Limited Warranty