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- Table of Contents
-
- 06-Network
- 01-VRF
- 02-Interface
- 03-Interface pairs
- 04-Interface collaboration
- 05-4G
- 06-Security zones
- 07-VLAN
- 08-MAC
- 09-DNS
- 10-ARP
- 11-ND
- 12-GRE
- 13-IPsec
- 14-ADVPN
- 15-L2TP
- 16-SSL VPN
- 17-Routing table
- 18-Static routing
- 19-Policy-based routing
- 20-OSPF
- 21-BGP
- 22-RIP
- 23-IP multicast routing
- 24-PIM
- 25-IGMP
- 26-DHCP
- 27-HTTP
- 28-SSH
- 29-NTP
- 30-FTP
- 31-Telnet
- 32-MAC authentication
- 33-MAC address whitelist
- 34-MAC access silent MAC info
- 35-MAC access advanced settings
- 36-IP authentication
- 37-IPv4 whitelist
- 38-IPv6 whitelist
- 39-Wireless
- Related Documents
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| Title | Size | Download |
|---|---|---|
| 24-PIM | 21.02 KB |
PIM
Introduction
Protocol Independent Multicast (PIM) provides IP multicast forwarding by leveraging unicast static routes or unicast routing tables generated by any unicast routing protocol. PIM uses the underlying unicast routing to generate a multicast routing table without relying on any particular unicast routing protocol.
Based on the implementation mechanism, PIM includes the following categories:
· Protocol Independent Multicast–Dense Mode (PIM-DM)—PIM-DM is suitable for small-sized networks with densely distributed multicast members.
· Protocol Independent Multicast–Sparse Mode (PIM-SM)—PIM-SM is suitable for large- and medium-sized networks with sparsely and widely distributed multicast group members.
· Protocol Independent Multicast Source-Specific Multicast (PIM-SSM)—PIM-SSM can be implemented by leveraging part of the PIM-SM technique. Before you configure PIM-SSM, you must first enable PIM-SM.
If you enable PIM-DM on an interface, the PIM-DM mode is used. If you enabled PIM-SM on an interface, the PIM mode on the interface varies by multicast group for which a multicast packet destines.
· If the multicast group is in the SSM group range, the PIM-SSM mode is used.
· If the multicast group is not in the SSM group range, the PIM-DM mode is used.
