Cisco Catalyst 2960-XR Configuration Guide

Related Topics
Flex Links, on page 148
Default Flex Links and MAC Address-Table Move Update Configuration, on page 153
Restrictions for Configuring Flex Links and MAC Address-Table Move Update, on page 147
Configuring Flex Links: Examples, on page 161
Flex Links Configuration, on page 149
Monitoring Flex Links and the MAC Address-Table Move Update, on page 160
Configuring Flex Links: Examples, on page 161
Configuring a Preemption Scheme for a Pair of Flex Links
SUMMARY STEPS
1.
configure terminal
2.
interface interface-id
3.
switchport backup interface interface-id
4.
switchport backup interface interface-id preemption mode [forced | bandwidth | off]
5.
switchport backup interface interface-id preemption delay delay-time
6.
end
7.
show interface [interface-id] switchport backup
8.
copy running-config startup config
DETAILED STEPS
PurposeCommand or Action
Enters global configuration modeconfigure terminal
Example:
Switch# configure terminal
Step 1
Specifies the interface, and enters interface configuration mode.
The interface can be a physical Layer 2 interface or a port
channel (logical interface). The port-channel range is 1 to 48.
interface interface-id
Example:
Switch(conf)# interface gigabitethernet1/0/1
Step 2
Configures a physical Layer 2 interface (or port channel) as
part of a Flex Links pair with the interface. When one link is
forwarding traffic, the other interface is in standby mode.
switchport backup interface interface-id
Example:
Switch(conf-if)# switchport backup interface
Step 3
gigabitethernet1/0/2
Catalyst 2960-XR Switch Layer 2 Configuration Guide, Cisco IOS Release 15.0(2)EX1
OL-29424-01 155
Configuring Flex Links and the MAC Address-Table Move Update Feature
Configuring Flex Links

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