Contents
xix
Catalyst 3750-E and 3560-E Switch Software Configuration Guide
OL-9775-02
Specifying the Link Type to Ensure Rapid Transitions 19-24
Designating the Neighbor Type 19-25
Restarting the Protocol Migration Process 19-26
Displaying the MST Configuration and Status 19-26
CHAPTER
20 Configuring Optional Spanning-Tree Features 20-1
Understanding Optional Spanning-Tree Features 20-1
Understanding Port Fast 20-2
Understanding BPDU Guard 20-2
Understanding BPDU Filtering 20-3
Understanding UplinkFast 20-3
Understanding Cross-Stack UplinkFast 20-5
How CSUF Works 20-6
Events that Cause Fast Convergence 20-7
Understanding BackboneFast 20-7
Understanding EtherChannel Guard 20-10
Understanding Root Guard 20-10
Understanding Loop Guard 20-11
Configuring Optional Spanning-Tree Features 20-11
Default Optional Spanning-Tree Configuration 20-12
Optional Spanning-Tree Configuration Guidelines 20-12
Enabling Port Fast 20-12
Enabling BPDU Guard 20-13
Enabling BPDU Filtering 20-14
Enabling UplinkFast for Use with Redundant Links 20-15
Enabling Cross-Stack UplinkFast 20-16
Enabling BackboneFast 20-16
Enabling EtherChannel Guard 20-17
Enabling Root Guard 20-18
Enabling Loop Guard 20-18
Displaying the Spanning-Tree Status 20-19
CHAPTER
21 Configuring Flex Links and the MAC Address-Table Move Update Feature 21-1
Understanding Flex Links and the MAC Address-Table Move Update 21-1
Flex Links 21-1
VLAN Flex Link Load Balancing and Support 21-2
MAC Address-Table Move Update 21-3
