Reference Guide

Multicast Features | 617
31
Multicast Features
Multicast Features are supported on the S5000 switch.
This chapter contains the following sections:
• Enabling IP Multicast
• Multicasting with ECMP
• Implementation Information
• First Packet Forwarding for Lossless Multicast
• IPv4 Multicast Policies
FTOS supports the following multicast protocols:
• PIM Sparse-Mode (PIM-SM)
• Internet Group Management Protocol (IGMP)
• Multicast Source Discovery Protocol (MSDP)
Enabling IP Multicast
Enabling IP Multicast is supported on the S5000 switch.
Prior to enabling any multicast protocols, you must enable multicast routing.
Multicasting with ECMP
Dell Networking multicast uses Equal-cost Multi-path (ECMP) routing to load-balance multiple streams
across equal cost links. When creating the shared-tree Protocol Independent Multicast (PIM) uses routes
from all configured routing protocols to select the best route to the rendezvous point (RP). If there are
multiple, equal-cost paths, the PIM selects the route with the least number of currently running multicast
streams. If multiple routes have the same number of streams, PIM selects the first equal-cost route returned
by the Route Table Manager (RTM).
Task Command Syntax Command Mode
Enable multicast routing.
ip multicast-routing
CONFIGURATION