Alcatel Carrier Internetworking Solutions 060187-10 REV D manual Ospf Specifications

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OSPF Specifications	Configuring OSPF

OSPF Specifications

RFCs Supported	1370—Applicability Statement for OSPF
	1587—The OSPF NSSA Option
	1850—OSPF Version 2 Management Information
	Base
	2328—OSPF Version 2
	3101—The OSPF Not-So-Stubby Area (NSSA)
	Option
	3623 — Graceful OSPF Restart

Maximum number of Areas (per router)	3

Maximum number of Interfaces (per router)	5

Maximum number of Link State Database	5000
entries (per router)

Maximum number of adjacencies (per	16
router)

Maximum number of ECMP gateways (per	4
destination)

Maximum number of neighbors (per router)	16

Maximum number of routes (per router)	4000 (Depending on the number of interfaces/
	neighbors, this value may vary.)

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OmniSwitch 6600 Family Advanced Routing Configuration Guide March 2005

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Contents OmniSwitch 6600 Family Advanced Routing Configuration Guide Page Contents Alcatel INTERNETWORKING, INC. AII Supported Platforms Unsupported PlatformsWhen Should I Read this Manual? What is in this Manual?What is Not in this Manual? Who Should Read this Manual?Stage 1 Using the Switch for the First Time How is the Information Organized?Documentation Roadmap Stage 2 Gaining Familiarity with Basic Switch Functions Stage 3 Integrating the Switch Into a NetworkAnytime OmniSwitch 6600 Family Getting Started Guide Related DocumentationTechnical Support Configuring Ospf This ChapterOspf Specifications Ospf Defaults Table Parameter Description Command Default Value/CommentsOspf Quick Steps Router ID Admin Status = Enabled Operational Status = Up Admin Status = EnabledShow ip ospf area Area Identifier Area Type = normalOspf Overview Ospf Hello ProtocolOspf Areas Ospf Intra-Area and Inter-Area RoutingClassification of Routers Virtual Links Ospf Routers Connected with a Virtual LinkStub Areas Ospf Stub AreaNot-So-Stubby-Areas Totally Stubby Area ExampleGraceful Restart on Stacks with Redundant Switches Equal Cost Multi-Path Ecmp RoutingNon Broadcast Ospf Routing Multiple Equal Cost PathsOspf Graceful Restart Helping and Restarting Router Example Configuring Ospf Preparing the Network for Ospf Activating Ospf Loading the SoftwareEnabling Ospf Removing Ospf from MemoryCreating an Ospf Area Creating an AreaEnabling an Area Specifying an Area TypeEnabling and Disabling Summarization Displaying Area StatusDeleting an Area Configuring Stub Area Default Metrics Setting Area RangesConfiguring a Totally Stubby Area No ip ospf area 1.1.1.1 default-metricEnter the following commands on Router B Creating Ospf Interfaces Creating an InterfaceAssigning an Interface to an Area Activating an InterfaceInterface Authentication Simple AuthenticationMD5 Encryption Modifying Interface Parameters Ip ospf interface 120.5.80.1 dead-interval 50 costIp ospf interface 120.5.80.1 hello-interval Ip ospf interface 120.5.80.1 dead-intervalCreating Virtual Links Creating a Virtual LinkModifying Virtual Link Parameters Creating Redistribution Policies and Filters Specifying an Autonomous System Boundary RouterEnabling Redistribution Creating a Redistribution Policy Creating a Redistribution FilterShow ip ospf redist-filter Show ip ospf redist-filter ripShow ip ospf redist-filter rip 1.1.0.0 No ip ospf redist-filter rip 1.1.0.0Configuring Router Capabilities Configuring Static Neighbors Ip ospf interface 1.1.1.1 type non-broadcastIp ospf neighbor 1.1.1.8 eligible Ip ospf restart-support planned-only No ip ospf restart-supportOspf Application Example Three Area Ospf NetworkPrepare the Routers Ospf Application ExampleConfiguring Ospf Enable Ospf RouterOspf Application Example Examine the Network Verifying Ospf Configuration Software License and Copyright Statements Alcatel License AgreementAlcatel License Agreement Software License and Copyright Statements Booting and Debugging Non-Proprietary Software Third Party Licenses and NoticesOpenLDAP Public License Version 2.4, 8 December Linux GNU General Public License Version 2, JunePreamble Third Party Licenses and Notices Software License and Copyright Statements Third Party Licenses and Notices Appendix How to Apply These Terms to Your New Programs University of California Carnegie-Mellon UniversityRandom.c Apptitude, Inc AgranatRSA Security Inc Sun Microsystems, IncWind River Systems, Inc Network Time Protocol VersionIndex Index