Cisco Catalyst 3750-X User Manual

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Catalyst 3750-X and 3560-X Switch Software Configuration Guide
OL-21521-01
Chapter 48 Configuring IP Multicast Routing
Configuring IP Multicast Routing
This example shows a portion of an IP multicast boundary configuration that denies Auto-RP
information:
Switch(config)# access-list 1 deny 224.0.1.39
Switch(config)# access-list 1 den
y 224.0.1.40
Switch(config)# access-list 1 per
mit all
Switch(config)# interface gigabit
ethernet1/0/1
Switch(config-if)# ip multicast b
oundary 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.
Beginning in privileged EXEC mode, follow these steps to configure your switch as a candidate BSR.
Thi
s procedure is optional.
To remove this device as a candidate BSR, use the no ip pi
m bsr-candidate global configuration
command.
This example shows how to configure a candidate BSR, which uses the IP address 172.21.24.18 on a port
as the adv
ertised BSR address, uses 30 bits as the hash-mask-length, and has a priority of 10.
Switch(config)# interface gigabitethernet1/0/2
Switch(config-if)# ip address 172
.21.24.18 255.255.255.0
Switch(config-if)# ip pim sparse-
dense-mode
Switch(config-if)# ip pim bsr-can
didate gigabitethernet1/0/2 30 10
Command Purpose
Step 1
configure terminal Enter global configuration mode.
Step 2
ip pim bsr-candidate interface-id
hash-mask-length [priority]
Configure your switch to be a candidate BSR.
• For interface-id, enter the interface on this switch from which the
BSR address is derived to make it a candidate. This interface must
be enabled with PIM. Valid interfaces include physical ports, port
channels, and VLANs.
• For hash-mask-length, specify the mask length (32 bits maximum)
that is to be ANDed with the group address before the hash function
is called. All groups with the same seed hash correspond to the same
RP. For example, if this value is 24, only the first 24 bits of the group
addresses matter.
• (Optional) For priority, enter a number from 0 to 255. The BSR with
the larger priority is preferred. If the priority values are the same,
the device with the highest IP address is selected as the BSR. The
default is 0.
Step 3
end Return to privileged EXEC mode.
Step 4
show running-config Verify your entries.
Step 5
copy running-config startup-config (Optional) Save your entries in the configuration file.

Cisco Catalyst 3750-X Specifications

General

Switching Capacity	160 Gbps
Stacking Bandwidth	64 Gbps
Max Stacking Units	9
Layer Support	Layer 2 and Layer 3
Form Factor	Rack-mountable
DRAM	256 MB
Flash Memory	64 MB
Model	Cisco Catalyst 3750-X Series
Ports	24 or 48 10/100/1000 Ethernet ports
Uplink Interfaces	4 SFP or 2 SFP+
Features	StackWise Plus, EnergyWise
Image	IP Base or IP Services
Operating Temperature	0 to 40°C
Operating Humidity	10 to 85% noncondensing