Cisco Catalyst 3750-E User Manual

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Catalyst 3750-E and 3560-E Switch Software Configuration Guide
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Chapter 47 Configuring MSDP
Configuring MSDP
Figure 47-1 MSDP Running Between RP Peers
MSDP Benefits
MSDP has these benefits:
• It breaks up the shared multicast distribution tree. You can make the shared tree local to your
domain. Your local members join the local tree, and join messages for the shared tree never need to
leave your domain.
• PIM sparse-mode domains can rely only on their own RPs, decreasing reliance on RPs in another
domain. This increases security because you can prevent your sources from being known outside
your domain.
• Domains with only receivers can receive data without globally advertising group membership.
• Global source multicast routing table state is not required, saving memory.
Configuring MSDP
• Default MSDP Configuration, page 47-4
• Configuring a Default MSDP Peer, page 47-4 (required)
• Caching Source-Active State, page 47-6 (optional)
• Requesting Source Information from an MSDP Peer, page 47-8 (optional)
• Controlling Source Information that Your Switch Originates, page 47-8 (optional)
MSDP peer
RP + MSDP peer
49885
Receiver
MSDP peer
MSDP SA
MSDP SA
MSDP SA
TCP connection
BGP
Source
Multicast
Register
Peer RPF flooding
PIM sparse-mode
domain
PIM
DR
(S,G) Join

Cisco Catalyst 3750-E Specifications

General

Series	Catalyst 3750-E
Switching Capacity	32 Gbps
Stacking Bandwidth	32 Gbps
StackWise Plus	Yes
Layer Support	Layer 3
MAC Address Table Size	12, 000 entries
RAM	256 MB
Flash Memory	64 MB
Memory	256 MB DRAM, 64 MB Flash
Operating Temperature	32 to 113°F (0 to 45°C)
Ports	48 10/100/1000 Ethernet ports
Form Factor	Rack-mountable
Jumbo Frame Support	Yes
Input Voltage	100 to 240 VAC
Storage Temperature	-25 to 70 °C
Relative Humidity	10 to 90% non-condensing