Table Of Contents - Avaya 8600 Engineering

Table of Contents

Figures .......................................................................................................................................................... 6
Tables ............................................................................................................................................................ 7
1. OSPF Overview .................................................................................................................................... 9
2. Circuitless IP (CLIP) .............................................................................................................................. 9
3. Configuring OSPF ............................................................................................................................... 10
4. OSPF Network Types ......................................................................................................................... 11
5. Equal Cost Multi Path (ECMP) ............................................................................................................ 12
6. Security ............................................................................................................................................... 14
6.1 Simple Password Mechanism ..................................................................................................... 14
6.2 Message Digest 5 (MD5) ............................................................................................................ 14
Configuration Example - Using MD5 .......................................................................................... 15
6.3
7. OSPF Neighbor States ....................................................................................................................... 16
8. OSPF Areas ........................................................................................................................................ 18
8.1 Classification of Routers ............................................................................................................. 18
8.2 Types of OSPF Areas ................................................................................................................. 19
9. Configuration Examples ...................................................................................................................... 27
9.1 OSPF Route Distribution to RIP, RIP to OSPF (AS-external-LSA Type 1 Metrics) .................... 27
9.2 Distributing an Internet Default Route to OSPF using AS-external-LSA Type 2 ........................ 30
9.3 Controlling External Routes Advertised in an NSSA Area .......................................................... 32
Route Summarization between Area"s ........................................................................................ 37
9.4
9.5 Adjusting OSPF Timers ............................................................................................................... 37
9.6 Complex Configuration Example:................................................................................................ 38
10. Appendix ......................................................................................................................................... 45
10.1 Circuitless IP (CLIP) CLI ............................................................................................................. 45
10.2 OSPF Brouter Port CLI ............................................................................................................... 45
10.3 OSPF Network CLI ...................................................................................................................... 45
10.4 MD5 Authentication CLI .............................................................................................................. 46
10.5 Add OSPF Interface to New Area CLI ........................................................................................ 46
10.6 Stub Area CLI .............................................................................................................................. 46
10.7 NNSA ASBR Router CLI ............................................................................................................. 47
10.8 OSPF ASBR CLI ......................................................................................................................... 48
10.9 Default Route to OSPF CLI ......................................................................................................... 49
10.10 Controlling External Routes (NSSA Area) CLI ........................................................................ 50
11. Software Baseline ........................................................................................................................... 52
November 2010
ERS 8600 / 8800 OSPF Technical Configuration Guide
avaya.com
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