Cisco Catalyst 2960-XR User Manual

SUMMARY STEPS
1.
configure terminal
2.
interface interface-id
3.
switchport block multicast
4.
switchport block unicast
5.
end
6.
show interfaces interface-id switchport
7.
copy running-config startup-config
DETAILED STEPS
PurposeCommand or Action
Enters global configuration mode.configure terminal
Example:
Switch# configure terminal
Step 1
Specifies the interface to be configured, and enter
interface configuration mode.
interface interface-id
Example:
Switch(config)# interface gigabitethernet1/0/1
Step 2
Blocks unknown multicast forwarding out of the port.switchport block multicast
Step 3
Example:
Switch(config-if)# switchport block multicast
Only pure Layer 2 multicast traffic is blocked.
Multicast packets that contain IPv4 or IPv6
information in the header are not blocked.
Note
Blocks unknown unicast forwarding out of the port.switchport block unicast
Example:
Switch(config-if)# switchport block unicast
Step 4
Returns to privileged EXEC mode.end
Example:
Switch(config-if)# end
Step 5
Verifies your entries.
show interfaces interface-id switchport
Example:
Switch# show interfaces gigabitethernet1/0/1
Step 6
Catalyst 2960-XR Switch Security Configuration Guide, Cisco IOS Release 15.0(2)EX1
334 OL-29434-01
Configuring Port-Based Traffic Control
Blocking Flooded Traffic on an Interface

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