OSPF Demystified With RFC Version 3.1: RFC Translated Into Practice Kindle Edition

OSPF Demystified With RFC is the only book in the market and in the world that will allow you to understand OSPF with atypical scenarios that you will not find anywhere else. Scenarios with suboptimal routing and routing loop, scenarios with challenges and scenarios that explain what happen inside OSPF for path selection and why this happen ? each scenario et each behavior is referenced by its RFC and its section.

To understand the operation of OSPF you should be familiar with a core set of RFCs (Request for Comments) that defines OSPF. This ebook gives you a large view in order to understand the effect of the following RFCs : 3101, 1587, 1583, 2328, 5340 and 3509 on OSPF path selection either for external routes or internal routes, summary route cost , LSA Type preference etc…., and to see the difference between them in practice. The Labs are elaborated step by step with some challenges and explanations. It is important to know that depending to the RFC you implement, the path selection differs and enabling or disabling an RFC is possible since the compatible command is available in IOS Cisco Routers 15 and later, it gives you a choice to implement the necessary RFC according to your requirements. Most engineer ignores the importance of RFC with OSPF, and you can find through this ebook different scenarios that show the behavior of each RFC and see OSPF behavior when you change the RFC compatibility.

Table of contents

Lab 1: RFC 3101 and RFC 1587 with OSPFv2
Lab 2: RFC 3101 and RFC 1587 with OSPFv3 Address Family
Lab 3: NSSA ABRs translator with RFC 3101 and 1587 and Nt bit
Lab 4: RFC 5340 and the next-hop for OSPFv3 routes
Lab 5: RFC 1583 and RFC 2328 for the Summary route
Lab 6: RFC 5340 and RFC 1583 for OSPFv3 address family and external path preference
Lab 7: RFC 5340 and RFC 1583 for OSPFv3 address family with multiple ASBR
Lab 8: OSPFv2 external path selection demystified with RFC 3101 and 1587
Lab 9: RFC 1587 and RFC 5340 with OSPFv3 Address Family
Lab 10: P-bit loop prevention mechanism with RFC 3101 and 1587
Lab 11: OSPFv3 Address Family Challenge Lab with RFC 5340
Lab 12: OSPFv3 AF IPv4 and IPv6 RFC 3101 and 1587 with Prefix-Suppression
Lab 13: OSPF ABR NSSA originating both Type-7 and 5 LSAs and optimization
Lab 14: RFC 3509 and ABR behavior with Type-3 and Type -4 LSAs
Lab 15: NSSA ABR and Type-7 selection according to RFC 3101
Lab 16: RFC 1587 and RFC 1583 Compatibility with OSPFv3 Address Family
Lab 17: External path preference in multiple area with RFC 3101 and 1587
Lab 18: Reducing or Blocking LSA flooding and DNA bit
Lab 19: RFC 3101 and RFC 1587 OSPFv2 OSPFv3 P-bit cleared
Lab 20: RFC 3101 and RFC 1587 on an NSSA ABR
Lab 21: OSPFv3 AF challenge with RFC
Lab 22: OSPF Multi-Area Adjacency and RFC 5185
Lab 23: OSPFv3 Forward Address and RFC 5340
Lab 24: Two Type-7 LSA with two ASBRs and RFC 3101
Lab 25: P-bit set and P-bit cleared with RFC 3101 in OSPFv2
Lab 26: OSPF-4-FLOOD_WAR message
Lab 27: Two Type-5 LSA with overlapping subnet and RFC 2328
Lab 28: OSPFv3 AF demystified with RFC 3101 1587 1583 5340
Lab 29: Why the P-bit must be cleared in the Type-7 default route?
Lab 30: Why an NSSA ABR does not inject a default route automatically?
Lab 31: Why it is not good to redistribute into a backbone area?
Lab 32: Routing loop with RFC 1583 and 5340
Lab 33: OSPFv3 suboptimal routing with multiple ABRs
Lab 34: Capability Transit and Breaking the split horizon rule
Lab 35: How to inject external route into Stub Area
Lab 36: Virtual-Link and the DNA (DoNoAge) bit demand circuit and authentication
Lab 37: LSInfinity for inter-area prefix External and Router LSAs
Lab 38: OSPFv3 Stub router advertisement and RFC 6987
Lab 39: Demystify OSPFv2 external path selection
Lab 40: P-bit loop prevention mechanism and connectivity issues
Lab 41: Prefix Suppression and RFC 6860 issue with Type-2 LSA
Lab 42: How to set the P-bit in Type-7 LSA
Lab 43: NSSA ABR translation condition
Lab 44: OSPF Prefix-Suppression with OSPFv3 Address Family
Lab 45: Type-7 LSA Default route on an NSSA ASBR
Lab 46: Type-9 LSA in Broadcast and Point-To-Point Networks
Lab 47: OSPF external path selection with multiple ASBRs Type -1 and Type-2
Lab 48: OSPFv2 external path selection multiple ASBRs
Lab 49: OSPF external route filtering without distribute-list
Lab 50: OSPFv3 distribute list filtering demystified
Lab 51: show ipv6 ospf neighbor command demystified
Lab 52: OSPFv3 external route summary cost and RFC 3101
Lab 53: NSSA external route demystified with RFC 3101
Lab 54: MPLS VPN and OSPF Down bit loop prevention
Lab 55: OSPF sham link on MPLS VPN
Lab 56: RFC 2328 and Suboptimal Routing for external prefix
Lab 57: ABR loop prevention with Inter-area routing and P-bit
Lab 58: OSPF TTL security check
Lab 59: OSPF Network Type demystified with Type-1 LSA
Lab 60: Effect of RFC 1583 and 2328 on NSSA area
Lab 61: OSPFv3 filter-list NSSA and RFC 1583 2328
Lab 62: RFC 5243 Database Exchange Summary Optimization
Lab 63: Largest area id as a tie breaker with RFC 3101 and RFC 2328 scenario 1
Lab 64: Largest area id as a tie breaker with RFC 3101 and RFC 2328 scenario 2
Lab 65: inter-area loop prevention and discard route issues
Lab 66: Capability Transit feature and suboptimal routing
Lab 67: Capability Transit feature and routing loop
Lab 68: OSPFv3 suboptimal routing with multiple NSSA ABR
Lab 69: OSPF local-rib-criteria forwarding-address command
Lab 70: OSPF local-rib-criteria nssa-translation command
Lab 71: How to configure an area as a non-transit area
Lab 72: Intra-area concept and Transit Capability
Lab 73: The max-lsa OSPF Router Subcommand
Lab 74: OSPF SPF Throttling and routing loop
Lab 75: SPF Algorithm and the effect of the Type-9 LSA
Lab 76: LSA Type 1 and LSA Type 3 SPF calculation
Lab 77: Type-3 and Type-4 LSAs loop prevention and the suboptimal routing on OSPFv3
Lab 78: Default-information originate with always keyword and loop prevention
Lab 79: OSPFv3 for IPv4 using Address Family
Lab 80: OSPFv3 Address Families stub and Totally Stubby area
Lab 81: NSSA Forward Address Filter-List Default route
Lab 82: External Prefix propagation on OSPFv3
Lab 83: Router LSA and prefix-suppression
Lab 84: Router and Summary LSAs in Virtual-Link
Lab 85: Intra-Area and Inter-Area routes propagation
Lab 86: NSSA for external prefix and secondary address
Lab 87: asb-Summary Type-4 LSA Demystified
Lab 88: Inter-area router LSA loop prevention in OSPFv3
Lab 89: Inter-area prefix LSA loop prevention in OSPFv3
Lab 90: Link-State Database of OSPFv3 demystified
Lab 91: V-bit and B-bit fields in Type-1 LSA
Lab 92: How to build OSPFv2 topology using LSDB
Lab 93: How to build OSPFv2 topology using LSDB
Lab 94: Type-4 LSA generation
Lab 95: OSPF Discrepancy
Lab 96: OSPF Virtual-Link Max-LSA and ISPF
Lab 97: DMVPN Phase 2 OSPF Broadcast Versus Point to Multipoint Network Type
Lab 98: OSPFv3 External Path Selection Demystified With Multiple RFC
Lab 99: Routing Problem with OSPF Forwarding Address
Lab 100: Type-2 LSA Demystified On OSPFv2 and OSPFv3
Lab 101: P-bit Policy Paradox
Request For Comments RFC references

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