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CHAPTER
19-1
Catalyst 2960 and 2960-S Switch Software Configuration Guide
OL-8603-09
19
Configuring Flex Links and the MAC
Address-Table Move Update Feature
Note To use Flex Links and the MAC address-table move update feature, the switch must be running the LAN
Base image.
This chapter describes how to configure Flex Links, a pair of interfaces on the Catalyst 2960 and 2960-S
switches that provide a mutual backup. It also describes how to configure the MAC address-table move
update feature, also referred to as the Flex Links bidirectional fast convergence feature. Unless otherwise
noted, the term switch refers to a standalone switch and to a switch stack.
Note Stacking is supported only on Catalyst 2960-S switches running the LAN base image.
Note For complete syntax and usage information for the commands used in this chapter, see the command
reference for this release.
The chapter consists of these sections:
• Understanding Flex Links and the MAC Address-Table Move Update, page 19-1
• Configuring Flex Links and the MAC Address-Table Move Update, page 19-7
• Monitoring Flex Links and the MAC Address-Table Move Update, page 19-14
Understanding Flex Links and the MAC Address-Table
Move
Update
This section contains this information:
• Flex Links, page 19-2
• VLAN Flex Link Load Balancing and Support, page 19-3
• Flex Link Multicast Fast Convergence, page 19-3
• MAC Address-Table Move Update, page 19-6