User guide

OmniSwitch AOS Release 7 Advanced Routing Guide March 2015 iii
Contents
About This Guide ..........................................................................................................xi
Supported Platforms ..........................................................................................................xi
Who Should Read this Manual? ........................................................................................xi
When Should I Read this Manual? ....................................................................................xi
What is in this Manual? .....................................................................................................xi
What is Not in this Manual? .............................................................................................xii
How is the Information Organized? .................................................................................xii
Documentation Roadmap ................................................................................................xiii
Related Documentation .................................................................................................... xv
Technical Support ...........................................................................................................xvi
Chapter 1 Configuring OSPF .......................................................................................................1-1
In This Chapter ................................................................................................................1-1
OSPF Specifications ........................................................................................................1-2
OSPF Defaults Table .......................................................................................................1-3
OSPF Quick Steps ...........................................................................................................1-4
OSPF Overview ..............................................................................................................1-7
OSPF Areas ..............................................................................................................1-8
Classification of Routers ..........................................................................................1-9
Virtual Links ............................................................................................................1-9
Stub Areas ..............................................................................................................1-10
Not-So-Stubby-Areas ......................................................................................1-11
Totally Stubby Areas .......................................................................................1-11
Equal Cost Multi-Path (ECMP) Routing ...............................................................1-12
Non Broadcast OSPF Routing ................................................................................1-12
Graceful Restart on Switches with Redundant CMMs ..........................................1-13
Configuring OSPF .........................................................................................................1-14
Preparing the Network for OSPF ...........................................................................1-15
Activating OSPF ....................................................................................................1-15
Creating an OSPF Area ..........................................................................................1-16
Configuring Stub Area Default Metrics .................................................................1-18
Creating OSPF Interfaces .......................................................................................1-19
Interface Authentication .........................................................................................1-20
Creating Virtual Links ............................................................................................1-22
Using Route Maps ...........................................................................................1-22
Configuring Route Map Redistribution ...........................................................1-26
Route Map Redistribution Example ................................................................1-27