Cisco Systems OL-4580-01 manual

Chapter 3 Configuring Open Shortest Path First (OSPF)

OSPF Configuration in a Startup-Configuration File

OSPF Configuration in a Startup-Configuration File

The following example shows an OSPF configuration in a startup-configuration file.

!*************************** GLOBAL ***************************

ospf router-id 121.23.21.1 ospf enable

ospf area 1.1.1.1 ospf as-boundary

ospf advertise 192.168.4.15 255.255.255.0 ospf redistribute static

!************************* INTERFACE *************************

interface ethernet-10 bridge vlan 6

!************************** CIRCUIT **************************

circuit VLAN6

ip address 192.168.2.2 255.255.255.0 ospf

ospf area 1.1.1.1 ospf priority 0 ospf enable

		Cisco Content Services Switch Routing and Bridging Configuration Guide

	OL-4580-01			3-43
	OL-4580-01			3-43

Image 125

Cisco Systems OL-4580-01 manual Ospf Configuration in a Startup-Configuration File

Contents

Software Version January Copyright 2004, Cisco Systems, Inc. All rights reserved Iii N T E N T S Configuring Circuits Showing Circuits Ospf Overview Vii Setting the Retransmission Interval Viii Configuring the Internet Protocol Enabling CDP OL-4580-01 Interface Trunking Between VLANs Xii Field Description for the show bridge port-fast Command Xiv Field Descriptions for the show ospf redistribute Command Preface Audience How to Use This GuideThis guide is organized as follows Xvi Xvii Related Documentation Xviii Rmon Xix TACACS+ Symbols and Conventions Cisco.com Obtaining DocumentationOrdering Documentation Xxi Obtaining Technical Assistance Documentation FeedbackCisco Technical Support Website Xxii Xxiii Opening a TAC CaseTAC Case Priority Definitions Xxiv Obtaining Additional Publications and Information Xxv Xxvi Interface and Circuit Overview Configuring Interfaces and Circuits OL-4580-01 CSS Interfaces and Circuits Log in to the CSS Enter configuration mode by typing config Interface and Circuit Configuration Quick Start# config Config# interface e1 Optional Display the circuit configuration Optional Display the interface configurationConfig# circuit VLAN1 Config# circuit VLAN3 Configuring Interfaces Command. For example Configuring an InterfaceEntering a Description for the Interface Text string from 1 to 255 characters including spaces To remove an interface description, enter Configuring Interface Duplex and Speed Configuring Interfaces and Circuits Config-if1/1#phy auto-negotiate disable Setting Interface Maximum Idle Time Specifying Vlan Trunking for an Interface Bridging an Interface to a Vlan Config-trunkif2/3# no trunk To remove the default Vlan selection, enter Selecting a Default Vlan in a Trunk Configuring Interfaces and Circuits Configuring Spanning-Tree Bridge Port Priority Configuring Spanning-Tree Bridge PathcostTo restore the default path cost, enter To restore the default port priority of 128, enter Configuring Spanning-Tree Bridge State Configuring Port Fast on an InterfaceTo disable the bridge state, enter Config-ife7#bridge state enable Config-if2/1#bridge port-fast disable Config-if2/1#bridge port-fast enableConfig# bridge bpdu-guard enabled Enabling Port Fast Showing Port Fast Information Config# bridge bpdu-guard disabled Showing Bridge Configurations Showing Interface Configurations Bridge interface virtual LAN number Vlan Field Description Showing Interface Information Showing Trunking ConfigurationsPort CSS port Vlan on the port Showing Interface Duplex and Speed 6describes the fields in the show interface command outputConfig# show phy 2/1 Showing Interface Statistics 7describes the fields in the show phy command output Interface address at the protocol layer immediately 8describes the fields in the show mibii command outputThat do not have such an address for example, a serial line This object contains an octet string of zero length # clear statistics Number of frames received on the interface that are an Showing Ethernet Interface ErrorsIntegral number of octets in length but do not pass Frame check sequence FCS check Field Description Shutting Down All Interfaces Shutting Down an Interface Restarting All Interfaces Restarting an InterfaceTo shut down all interfaces, enter To restart all interfaces, enter Entering Circuit Configuration Mode Configuring CircuitsConfiguring a Circuit IP Interface Config# circuit VLAN7 Configuring a Circuit-IP Broadcast Address Configuring a Circuit IP Address Configuring Circuit-IP Unreachables Configuring Circuit-IP Redirects Enabling and Disabling a Circuit IP To disable router discovery, enter100 Preference To revert to the default of 224.0.0.1, enter Configuring the Router-Discovery LifetimeConfiguring Router-Discovery Limited-Broadcast Configuring the Router-Discovery Min-Advertisement-Interval Configuring the Router-Discovery Max-Advertisement-IntervalMax-advertisement-interval Min-advertisement-interval To list an individual circuit, enter 10describes the fields in the show circuits command outputShowing Circuits # show ip interfaces Indicates whether RIP is Enabled or DisabledShowing IP Interfaces To stop running the RIP on the interface, enter Configuring RIP for an IP InterfaceEnabling RIP on an IP Interface Configuring RIP Send Version Configuring a RIP Default RouteConfiguring a RIP Receive Version Showing RIP Configurations for IP Addresses Configuring RIP Packet Logging # show rip globals 12describes the fields in the show rip command output # show rip statistics Configuring the Switched Port Analyzer Feature Example of Span Connectivity Configuring Span on a CSS Config# no setspan srcport 3/3 destport 3/12 Verifying the Span Configuration on a CSSConfig# setspan srcport 3/3 destport 3/12 copyBoth Field Description Configuring Spanning-Tree Bridging for the CSS Config# bridge forward-time Config# bridge aging-timeConfig# bridge hello-time CSS Spanning-Tree Bridging Quick Start To restore the default aging time of 300, enter Configuring Spanning-Tree Bridge Aging-TimeSet the bridge spanning-tree maximum age, in seconds Recommended Display bridge forwarding information Configuring Spanning-Tree Bridge Max-Age Configuring Spanning-Tree Bridge Hello-TimeTo restore the default delay time of 4, enter To restore the default hello time interval of 1, enter To restore the default maximum age of 6, enter Configuring Spanning-Tree Bridge PriorityDisabling Bridge Spanning-Tree To set the bridge maximum age to 21, enter To disable spanning-tree bridging, enter Showing Bridge ConfigurationsTo reenable spanning-tree bridging, enter Config# bridge spanning-tree disable Field Description OL-4580-01 Configuring Open Shortest Path First Ospf Ospf Routing Hierarchy Link-State Databases Ospf Overview Boundry Router2 Ospf Routing Hierarchy Backbone Area Autonomous SystemAreas Autonomous System Boundary Routers Area Border RoutersStub Area Link-State Databases Global Ospf Configuration Quick Start CSS Ospf Configuration Quick Start Enable Ospf on the CSS Config# circuit VLAN6 Ospf IP Interface Configuration Quick StartAccess global configuration mode. Enter Configure the IP interface as an Ospf interface. Enter # show ospf global Verifying Your Configuration# show ospf redistribute # show ospf advertise Configuring the Ospf Router ID Configuring Ospf on the CSSTo delete the router ID on the CSS, disable Ospf and enter Config# ospf router-id Enabling Ospf Configuring an AreaTo disable OSPF, enter Removing an Area Configuring Equal-Cost RoutesConfiguring Summarized Routes at an ABR To remove the CSS as an AS boundary router, enter To remove the range, enter Advertising a Route as an Ospf ASE Route VIP is Config# ospf advertise 192.168.44.0 Preceded by an exclamation point Config# no ospf advertise Config# ospf default Advertising a Default ASE Route Config# no ospf default Config# ospf default metric 10 type1Config# ospf redistribute firewall Advertising Other Routes Through Ospf Config# ospf redistribute rip metric 3 type1 Configuring Ospf on a CSS IP InterfaceConfig# no ospf redistribute rip To stop advertising the RIP routes via OSPF, enter Configure this circuit as an Ospf circuit. Enter Configuring the CSS IP Interface as an Ospf Interface To reset the interface to the default backbone area, enter Configuring the Interface AttributesTo disable Ospf on the interface, enter Assigning an Ospf Area to the Interface Setting the Hello Packet Interval Setting the CostSetting the Dead Router Interval To remove the Ospf password from the interface, enter Setting the PasswordSetting the Poll Interval For example, to set the poll interval to 200 seconds, enter Setting the Priority of the CSSSetting the Retransmission Interval To set the retransmission interval to 10 seconds, enter Setting the Transit-Link DelayShowing Ospf Information Showing Ospf Area Information 3describes the fields in the show ospf areas command outputShowing Global Statistics To show information about Ospf areas, enter To show Ospf interfaces, enter Showing IP Interface Information Field Field Description Showing Link-State Databases # show ospf lsdb 6describes the fields in the show ospf lsdb command outputTo show the entire database, enter Field Description Showing ASE Entries 7describes the fields in the show ospf ase command outputTo show AS-external ASE entries in the LSDB, enter # show ospf ase # show ospf advertise 192.168.11.1/24 Showing the Configured Advertised ASE RoutesTo show the configuration of ASE routes into OSPF, enter Firewall Field Description Showing the Redistribution Policy To show the summary-route configuration information, enter Showing Summary Route Configuration InformationShowing Ospf Neighbors To show the Ospf neighbors, enter 11 Field Descriptions for show ospf neighbors Command Field Description Field Description Ospf Configuration in a Startup-Configuration File OL-4580-01 Protocol Configuring the Address Resolution Define a static ARP mapping ARP Configuration Quick StartSet the time, in seconds, to wait for an ARP resolution Config# no arp Configuring ARP Mapping Configuring ARP Wait Configuring ARP TimeoutTo restore the default wait time of 5 seconds, enter Config# no arp timeout # clear arp cache Updating ARP ParametersClearing ARP Parameters Showing ARP Information Show arp configfilemanagement-portsummaryiporhost # show arp summary 2describes the fields in the show arp command output 4describes the fields in the show arp config command output To display the global ARP configuration, enter# show arp config # show arp file To display the resolution for a host IP address, enter OL-4580-01 Configuring Routing Information Protocol Configure the CSS to advertise a route through RIP RIP Configuration Quick StartConfig# rip advertise 192.168.1.0/24 Config# rip redistribute static Config# no rip advertise 192.168.1.0/24 Configuring RIP AdvertiseConfiguring RIP Redistribute Config# no rip equal-cost Configuring Equal-Cost RIP Routes Showing RIP Configurations 3describes the fields in the show rip globals command output Field Descriptions for the show rip statistics Command OL-4580-01 Configuring the Internet Protocol IP Configuration Quick Start Configuring an IP Route Configuring the Internet Protocol Configuring an IP Route To remove a firewall route, enter For example, to configure a blackhole route, enterTo remove a static route, enter Config# no ip no-implicit-service Disabling an Implicit Service for the Static Route Next HopTo reset the default setting, enter Configuring the IP Record Route Configuring an IP Source RouteConfig# ip source-route Config# no ip source-route Configuring IP Equal-Cost Multipath Configuring Box-to-Box RedundancyTo disable box-to-box redundancy, enter Syntax for this global configuration command is Config# no ip ecmp no-prefer-ingress Config# ip ecmp no-prefer-ingressConfig# ip ecmp roundrobin Config# no ip subnet-broadcast To restore the default behavior of the CSS, enter Configuring IP Unconditional BridgingConfig# ip uncond-bridging Config# no ip uncond-bridging Example of Opportunistic Layer 3 Forwarding Config# ip opportunistic all Showing IP Configuration InformationConfig# no ip opportunistic Config# ip route 0.0.0.0 /0 192.168.1.7 originated-packets Showing IP Global Configuration Parameters Whether RIP is enabled or disabled Showing IP Routing Information 4describes the fields in the show ip routes command output Which the next hop of this route should be reached Showing IP StatisticsIndex value that identifies the local interface through TCP Statistics Icmp Statistics ARP Statistics Showing a Summary of IP Global Statistics Resetting IP Statistics Field Description OL-4580-01 Configuring the Cisco Discovery Protocol Config# cdp holdTime CDP Configuration Quick StartConfig# cdp timer Recommended Display and verify CDP information for the CSS To disable CDP transmissions on the CSS, enter Setting the CDP Hold TimeConfig# no cdp holdTime Enabling CDP Showing CDP Information Setting the CDP Transmission RateConfig# no cdp timer Configuring the Dhcp Relay Agent Optional Verify the Dhcp configuration Dhcp Relay Agent Configuration Quick StartEnable the Dhcp relay agent on the CSS circuit Config-circuitVLAN2#no dhcp relay-to To disable the Dhcp relay agent on the circuit, enterAdding a Dhcp Destination on a Circuit Enabling and Disabling Dhcp on the Circuit Config# no dhcp-agent max-hops Displaying the Dhcp Relay ConfigurationDefining the Hops Field Value for Forwarding Dhcp Messages # show dhcp-relay-agent global Field Description OL-4580-01 IN-1 Aging time, configuring for bridgingBpdu guard Displaying information Enabling IN-2 CLI IN-3 DNS IN-4 IP Ecmp IN-5 IN-6 IN-7 IN-8 Switched port analyzer. See also SpanMIB-II interface Ospf global IN-9 Symbol overview Zero, resetting Ethernet statistics to IN-10