Asante Technologies 35516 Change the Ospf Administrative Distances, Monitor and Maintain Ospf

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To force the autonomous system boundary router to generate a default route, perform the following task in router configuration mode.

Command

Purpose

redistribute {kernel connected static

Redistribute routes into OSPF routing

rip bgp} [metric metric-value][metric-

domain.

type {12}][route-map map-tag]

 

5.7.16 Change the OSPF Administrative Distances

An administrative distance is a value that rates the trustworthiness of a routing information source, such as an individual router or a group of routers. Numerically, an administrative distance is an integer between 0 and 255. The higher the value, the lower the trust rating. An administrative distance of 255 means the routing information source cannot be trusted at all and should be ignored.

OSPF uses three different administrative distances: intra-area, inter-area, and external. Routes learned through other domains are external, routes to another area in OSPF domain are inter-area, and routes inside an area are intra-area. The default distance for each type of route is 110.

To change any of the OSPF distance values, use the following command in router configuration mode.

Command

Purpose

distance ospf {external distance1 inter-area

Change the OSPF administrative distance

distance2 intra-areadistance2}

values.

5.7.17 Suppress Routes on an Interface

The interface specified as passive appears as a stub network in the OSPF domain. OSPF routing information is neither sent nor received through that specified router interface.

To suppress routes on a specified interface, use the following command in router configuration mode.

Command

Purpose

passive-interface interface-name

Suppress the sending of routes through the

 

specified interface.

5.7.18 Prevent Routes from being Advertised in Routing Updates

To prevent other routers from learning one or more routes, the user can suppress routes from being advertised in routing updates. Note that this feature applies only to external routes.

To suppress routes from being advertised in routing updates, perform the following task in router configuration mode.

Command

Purpose

distribute-list list-nameout {bgp

Permit or deny routes from being advertised in

connected kernel rip static}

routing updates, depending upon the action

 

listed in the access list.

5.7.19 Monitor and Maintain OSPF

The user can display specific statistics such as the contents of IP routing tables and databases. The information provided can be used to determine resource utilization and solve network problems. The user can also display information about node availability and discover the routing path that packets are taking through the network.

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Contents IntraCore 35516 Series IntraCore 35516 Series Technical SupportTable of Contents Page Features IntroductionPackage Contents LEDsFront and Back Panel Descriptions GbicManagement and Configuration Console InterfaceSafety Overview Hardware Installation and SetupInstallation Overview Recommended Installation ToolsEnvironmental Requirements Installation into an Equipment RackPower Requirements Cooling and AirflowInstalling a Gbic Gigabit Interface ConvertersGbic Care and Handling Installing the Optional Emergency Power SupplyRemoving a Gbic System Information System up since 103443 Fri Feb 071 10/100/1000BaseT Ports Cabling Procedures Connecting PowerConnecting to the Network Connecting to a Console SetupGigabit Ethernet Ports Cabling Procedures User Access Verification Password Specifies an Unencrypted line password will follow Setting PasswordsUnencrypted cleartext line password Specifies a Hidden line password will followRouterconfig-if-veth1# Configuring an IP AddressSetting a Default IP Gateway Address Routerconfig# boot system flash bank1bank2 Restoring Factory DefaultsSystem Boot Parameters Access Each Command Mode Understanding the Command Line Interface CLIUser Top User Exec Mode Command Show ? PurposeCommand Purpose Privileged Top Privileged Exec ModeRouter enable Password Router# Command Exit end Ctrl-Z Purpose Global Configuration ModeCommand Purpose Router# configure terminal Interface Configuration Mode Router Configuration Mode Route-Map Configuration ModeAdvanced Features Supported within the Command Mode Command Help PurposeRouterconfig# routed rip Invalid input detected at marker Checking Command SyntaxRouterconfig# hostname ? Word This systems network name Routerconfig# route Ambiguous command. Routerconfig#Using Command-Line Editing Features and Shortcuts Using CLI Command HistoryUsing the No and Default Forms of Commands Routerconfig# router Command incomplete. Routerconfig#Router# confTab Router# configure Moving Around on the Command LineCompleting a Partial Command Name Keystrokes PurposeDeleting Entries Editing Command Lines that WrapRouter# co? configure copy Router# co Keystrokes Purpose Press the Delete or BackspaceTransposing Mistyped Characters Redisplaying the Current Command LineScrolling Down a Line or a Screen Controlling CapitalizationPassword Passwords and Privileges CommandsEnable Password Routerconfig-line# password AsanteService Password-Encryption Changing the Password Managing the System and Configuration FilesSetting the System Clock Managing the SystemTrace Packet Routes Enable the System LogDisplaying the Operating Configuration Test Connections with Ping TestsConfiguration to Nvram Managing Configuration FilesConfiguring from the Terminal Routerconfig# hostname newname Newnameconfig# endCopying Configuration Files to a Network Server Running-config Configuring Snmp and Spanning TreeConfiguring Snmp Support Startup-configRouterconfig# duplicate-ip detect Configuring Spanning Tree Protocol STPCreate or Modify Access Control for Snmp Community Disable the Snmp ProtocolMaximum Age Forward TimeHello Time PriorityPort Priority Routerconfig# mac-address-table aging-timeMAC Address Table Port Path CostAssign IP Addresses to Network Interfaces Configuring IPConfiguring IP Addressing Class Address or Range StatusCidr Prefix Class C Equivalent Host Addresses Command PurposeAssign Multiple IP Addresses to Network Interfaces Define a Static ARP Cache Establish Address ResolutionConfiguring IP Routing SecondaryConfiguring Static Routes Route Source Default DistanceAllow Unicast Updates for RIP Configuring RIPEnable RIP Neighbor ip-addressRedistribute Routing Information Command Purpose Route-map map-tagdeny permit sequenceSpecify a RIP Version Set Administrative Distance Set Metrics for Redistributed RoutesFiltering Routing Information Generate a Default RouteSuppress Routing Updates through an Interface Manage Authentication Keys Adjust TimersEnable or Disable Split-horizon Command Purpose Offset-list access-list-name in outConfiguring IP Multicast Routing Monitor and Maintain RIPPurpose Ip igmp query-interval 1-65535 seconds Configuring IgmpModifying the Igmp Host-Query Message Interval Changing the Igmp Version CommandConfiguring the Router as a Statically Connected Member SecondsConfiguring Dvmrp Nbr-timeout 35-8000 secondsDefault value 200 seconds Default value 180 secondsCommand Purpose Route-expire-time 20-4000 seconds Report-intervalUsing Access Lists Create a Standard Access ListCreate an Expanded Access List Destination address to match. e.gOperator equal to Creating an Access List with a NameApplying an Access List to an Interface Operator greater thenConfigure ABR Type Configuring OspfEnable Ospf Command Purpose Router ospf StepConfigure Ospf Network Type Configure CompatibilityConfigure Ospf Interface Parameters Configure Ospf Not So Stubby Area Nssa Configure Ospf for Non-broadcast Networks Configure Area Parameters Command Purpose Neighbor ip-address priority numberCreate Virtual Links Configure Route Summarization between Ospf AreasCommand Purpose Area area-idvirtual-link router-idhello Not-advertisedRefresh Timer Configuration Control Default MetricsConfigure Route Calculation Timers Redistribute Routes into OspfCommand Purpose Distance ospf external distance1 inter-area Change the Ospf Administrative DistancesPrevent Routes from being Advertised in Routing Updates Suppress Routes on an InterfaceRouter ip-address NameVrrp Configuration Virtual Router Redundancy Protocol VrrpMonitoring and Maintaining the Network Configuring Icmp Router Discovery Protocol IrdpEnable Irdp Processing Change Irdp ParametersShow ip prefix-list prefix-list-name Command Purpose Show arp interfaceShow access-lists access-list Show ip irdpVlan Configuration Creating or Modifying a VlanDeleting a Vlan Routerconfig# interface veth2 vlan Routerconfig-if-veth2#Routerconfig# no vlan Routerconfig# exit Router# show vlan Trunk Ieee 802.1Q Static AccessVlan Port Membership Modes Trunk allowed vlan add all except Command Purpose Routerconfig# vlan dot1q tag native3 Dot1q Tunnel Mode dot1q-tunnel Appendix A. Basic Troubleshooting Problem Possible SolutionsTechnical Support and Warranty Appendix B. SpecificationsPhysical Characteristics Standards ComplianceIntraCare Warranty Statement Appendix C. FCC Compliance and Warranty StatementsFCC Compliance Statement Important Safety Instructions Page Pin Number Signal Name Appendix D. Console Port Pin OutsAppendix E. Online Warranty Registration
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