By William R. Parkhurst
The finished, hands-on advisor to all Cisco IOS software program OSPF instructions
- Stands because the whole OSPF command reference -- precious for community designers, engineers, and architects
- Provides configuration, troubleshooting, and verification eventualities for each attainable OSPF command supported by way of Cisco IOS software program that may be applied on a minimal variety of routers
- Groups OSPF instructions through sector of implementation -- zone configuration, redistribution, neighbor relationships, and direction filtering, simply to identify a few
- Provides transparent and concise observation at the preliminary unencumber, function, syntax, and utilization of every OSPF command
- Offers very good CCIE certification education from one of many CCIE application Managers
- Constructed as a conveyable box consultant with simply navigable content material so that you can quick locate the knowledge you wish should you desire it
As some of the most predominantly deployed inside Gateway Protocols, Open Shortest course First (OSPF) calls for a wealth of data at the a part of internetworking pros operating with it each day. regrettably, publicly on hand documentation at the OSPF command set varies from being too skinny on assurance to being too tough at the required gear had to try what the documentation covers.
Cisco OSPF Command and Configuration guide is a transparent, concise, and whole resource of documentation for all Cisco IOS software program OSPF instructions. how you use this booklet depends upon your pursuits. while you are getting ready for the CCIE written and lab checks, then this publication can be utilized as a laboratory consultant to benefit the aim and correct use of each OSPF command. when you are a community clothier, then this e-book can be utilized as a prepared reference for any OSPF command.
Cisco OSPF Command and Configuration guide presents instance eventualities that reveal the correct use of each OSPF command that may be applied on a minimal variety of routers. this can show you how to study each one command with out requiring an intensive and costly lab configuration. The eventualities in actual fact current the aim and use of every command. many of the examples lead you into universal non-working events so one can strengthen the certainty of the operation of the actual OSPF command.
Author invoice Parkhurst offers concise snapshots of each command in regards to command function, utilization, syntax clarification, preliminary creation in Cisco IOS software program, and move references to similar instructions additionally coated within the e-book. This booklet covers many OSPF subject parts, together with interface configuration, OSPF region configuration, direction filtering, OSPF approach configuration, direction price, default direction new release, redistribution, administrative distance, OSPF neighbor relationships, direction summarization, and express, debug, and transparent commands.
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Additional info for Cisco OSPF command and configuration handbook
10 Interface Serial0/0 Router A has lost Router C as a neighbor. Enable debugging on Router A to see if you can determine the problem. 2, Serial0/1 : Mismatch Authentication Key No message digest key 5 on interface Be careful when configuring passwords. A space is a valid character, so if you use the password cisco
Hostname rtrA ! ip subnet-zero ! 255 no ip directed-broadcast ! 252 no ip directed-broadcast ip ospf authentication-key 7 121A0C041104 no ip mroute-cache ! com to register . it. Thanks no ip directed-broadcast ip ospf authentication-key 7 02050D480809 clockrate 64000 Troubleshooting Step 1. Before enabling authentication in an OSPF area, verify that there is a neighbor relationship among all OSPF routers by using the show ip ospf neighbor command. Step 2. Verify that authentication has been enabled for every OSPF router with an interface in the area where authentication is being deployed.
Thanks Number of external LSA 3. Checksum Sum 0x14B45 Number of DCbitless external LSA 0 Number of DoNotAge external LSA 0 Number of areas in this router is 2. 1 normal 1 stub 0 nssa Area BACKBONE(0) Number of interfaces in this area is 1 Area has no authentication SPF algorithm executed 21 times Area ranges are Number of LSA 3. Checksum Sum 0x14F55 Number of DCbitless LSA 0 Number of indication LSA 0 Number of DoNotAge LSA 0 Area 1 Number of interfaces in this area is 1 It is a stub area generates stub default route with cost 1 Area has no authentication SPF algorithm executed 37 times Area ranges are Number of LSA 4.
Cisco OSPF command and configuration handbook by William R. Parkhurst