Cisco Catalyst 2960-XR Configuration Guides

CHAPTER 2
Understanding Cisco's Implementation of IP
Multicast Routing
• Cisco’s Implementation of IP Multicast Routing, page 13
•
Information About IGMP, page 14
•
Configuring Optional IGMP Features, page 16
•
Configuration Examples for IGMP Features, page 26
•
Where to Go Next, page 27
•
Additional References, page 27
Cisco’s Implementation of IP Multicast Routing
Cisco IOS software supports the following protocols to implement IP multicast routing:
•
Internet Group Management Protocol (IGMP) is used among hosts on a LAN and the routers (and
multilayer switches) on that LAN to track the multicast groups of which hosts are members.
•
Protocol-Independent Multicast (PIM) protocol is used among routers and multilayer switches to track
which multicast packets to forward to each other and to their directly connected LANs.
•
Distance Vector Multicast Routing Protocol (DVMRP) is used on the multicast backbone of the Internet
(MBONE). The software supports PIM-to-DVMRP interaction.
•
Cisco Group Management Protocol (CGMP) is used on Cisco routers and multilayer switches connected
to Layer 2 Catalyst switches to perform tasks similar to those performed by IGMP.
Catalyst 2960-XR Switch IP Multicast Routing Configuration Guide, Cisco IOS Release 15.0(2)EX1
OL-29426-01 13

Cisco Catalyst 2960-XR Specifications

General

Stacking Bandwidth	80 Gbps
Layer Support	Layer 2 and Layer 3
Jumbo Frame Support	9198 bytes
RAM	512 MB
Input Voltage	100-240V AC
Model	Catalyst 2960-XR
Uplink Interfaces	4 x 1G SFP or 2 x 10G SFP+
Downlink Interfaces	24 or 48 x Gigabit Ethernet ports
Power Supply	Internal
MAC Address Table Size	16, 000 entries
PoE	Available on PoE models
Weight	4.5 kg
Features	energy efficiency
Stacking	Up to 8 switches
Operating Temperature	0 to 45°C