User guide

Contents
viii OmniSwitch AOS Release 7 Advanced Routing Guide March 2015
Multicast Addresses and the IANA ..........................................................................5-4
Administratively Scoped Multicast Addresses ..................................................5-4
Source-Specific Multicast Addresses ................................................................5-4
Multicast Address Boundaries .................................................................................5-5
Concurrent Multicast Addresses ..............................................................................5-6
Configuring Multicast Address Boundaries ....................................................................5-7
Basic Multicast Address Boundary Configuration ...................................................5-7
Creating a Multicast Address Boundary ..................................................................5-7
Deleting a Multicast Address Boundary ..................................................................5-7
Verifying the Multicast Address Boundary Configuration .............................................5-8
Application Example for Configuring Multicast Address Boundaries ...........................5-8
Chapter 6 Configuring DVMRP ...................................................................................................6-1
In This Chapter ................................................................................................................6-1
DVMRP Specifications ...................................................................................................6-2
DVMRP Defaults ............................................................................................................6-2
Quick Steps for Configuring DVMRP ............................................................................6-4
DVMRP Overview ..........................................................................................................6-5
Reverse Path Multicasting ........................................................................................6-5
Neighbor Discovery .................................................................................................6-6
Multicast Source Location, Route Report Messages, and Metrics ..........................6-7
Dependent Downstream Routers and Poison Reverse .............................................6-7
Pruning Multicast Traffic Delivery ..........................................................................6-8
Grafting Branches Back onto the Multicast Delivery Tree ......................................6-8
DVMRP Tunnels ......................................................................................................6-9
Configuring DVMRP ....................................................................................................6-10
Enabling DVMRP on the Switch ...........................................................................6-10
Loading DVMRP into Memory .......................................................................6-10
Enabling DVMRP on a Specific Interface ......................................................6-11
Viewing DVMRP Status and Parameters for a Specific Interface ..................6-12
Globally Enabling DVMRP on the Switch .....................................................6-12
Checking the Current Global DVMRP Status .................................................6-12
Automatic Loading and Enabling of DVMRP Following a System Boot ......6-13
Neighbor Communications ....................................................................................6-13
Routes .....................................................................................................................6-14
Pruning ...................................................................................................................6-15
More About Prunes ..........................................................................................6-15
Grafting ..................................................................................................................6-17
Tunnels ...................................................................................................................6-17
Verifying the DVMRP Configuration ...........................................................................6-18
Chapter 7 Configuring PIM ..........................................................................................................7-1
In This Chapter ................................................................................................................7-1
PIM Specifications ..........................................................................................................7-3
PIM Defaults ...................................................................................................................7-4