Cisco Catalyst 2960-XR Configuration Guide

How to Configure MSTP Features 59
Specifying the MST Region Configuration and Enabling MSTP 59
Configuring the Root Switch 62
Configuring a Secondary Root Switch 63
Configuring Port Priority 64
Configuring Path Cost 65
Configuring the Switch Priority 67
Configuring the Hello Time 68
Configuring the Forwarding-Delay Time 69
Configuring the Maximum-Aging Time 70
Configuring the Maximum-Hop Count 71
Specifying the Link Type to Ensure Rapid Transitions 72
Designating the Neighbor Type 73
Restarting the Protocol Migration Process 75
Monitoring MST Configuration and Status 76
Additional References for MSTP 76
Feature Information for MSTP 77
CHAPTER 4 Configuring Optional Spanning-Tree Features 79
Finding Feature Information 79
Restriction for Optional Spanning-Tree Features 79
Information About Optional Spanning-Tree Features 80
PortFast 80
BPDU Guard 80
BPDU Filtering 81
UplinkFast 82
Cross-Stack UplinkFast 83
How Cross-Stack UplinkFast Works 84
Events That Cause Fast Convergence 86
BackboneFast 86
EtherChannel Guard 89
Root Guard 89
Loop Guard 90
How to Configure Optional Spanning-Tree Features 90
Enabling PortFast 90
Catalyst 2960-XR Switch Layer 2 Configuration Guide, Cisco IOS Release 15.0(2)EX1
vi OL-29424-01
Contents

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