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 46 Configuring IP Multicast Routing
Configuring IP Multicast Routing
Defining the IP Multicast Boundary
You define a multicast boundary to prevent Auto-RP messages from entering the PIM domain. You
create an access list to deny packets destined for 224.0.1.39 and 224.0.1.40, which carry Auto-RP
information.
Beginning in privileged EXEC mode, follow these steps to define a multicast boundary. This procedure
is o
ptional.
To remove the boundary, use the no i
p multicast boundary interface configuration command.
This example shows a portion of an IP multicast boundary configuration that denies Auto-RP
i
nformation:
Switch(config)# access-list 1 deny 224.0.1.39
Switch(config)# access-list 1 deny 224.0.1.40
Switch(config)# access-list 1 permit all
Switch(config)# interface gigabitethernet1/0/1
Switch(config-if)# ip multicast boundary 1
Configuring Candidate BSRs
You can configure one or more candidate BSRs. The devices serving as candidate BSRs should have
good connectivity to other devices and be in the backbone portion of the network.
Command Purpose
Step 1
configure terminal Enter global configuration mode.
Step 2
access-list access-list-number deny
source [source-wildcard]
Create a standard access list, repeating the command as many times as
necessary.
• For access-list-number, the range is 1 to 99.
• The deny keyword denies access if the conditions are matched.
• For source, enter multicast addresses 224.0.1.39 and 224.0.1.40,
which carry Auto-RP information.
• (Optional) For source-wildcard, enter the wildcard bits in dotted
decimal notation to be applied to the source. Place ones in the bit
positions that you want to ignore.
Recall that the access list is always terminated by an implicit deny
s
tatement for everything.
Step 3
interface interface-id Specify the interface to be configured, and enter interface configuration
mode.
Step 4
ip multicast boundary
access-list-number
Configure the boundary, specifying the access list you created in Step 2.
Step 5
end Return to privileged EXEC mode.
Step 6
show running-config Verify your entries.
Step 7
copy running-config startup-config (Optional) Save your entries in the configuration file.

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