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Cisco Catalyst 3560-X User Manual

Cisco Catalyst 3560-X
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CHAPTER
1-1
Catalyst 3750-X and 3560-X Switch Software Configuration Guide
OL-25303-03
1
Configuring Optional Spanning-Tree Features
This chapter describes how to configure optional spanning-tree features on the Catalyst 3750-X or
3560-X switch. You can configure all of these features when your switch is running the per-VLAN
spanning-tree plus (PVST+). You can configure only the noted features when your switch or switch stack
is running the Multiple Spanning Tree Protocol (MSTP) or the rapid per-VLAN spanning-tree plus
(rapid-PVST+) protocol. Unless otherwise noted, the term switch refers to a Catalyst 3750-X or 3560-X
standalone switch and to a Catalyst 3750-X switch stack.
For information on configuring the PVST+ and rapid PVST+, see Chapter 1, “Configuring STP. For
information about the Multiple Spanning Tree Protocol (MSTP) and how to map multiple VLANs to the
same spanning-tree instance, see Chapter 1, “Configuring MSTP.
Note For complete syntax and usage information for the commands used in this chapter, see the command
reference for this release.
This chapter consists of these sections:
Understanding Optional Spanning-Tree Features, page 1-1
Configuring Optional Spanning-Tree Features, page 1-11
Displaying the Spanning-Tree Status, page 1-19
Understanding Optional Spanning-Tree Features
These sections contain this conceptual information:
Understanding Port Fast, page 1-2
Understanding BPDU Guard, page 1-2
Understanding BPDU Filtering, page 1-3
Understanding UplinkFast, page 1-3
Understanding Cross-Stack UplinkFast, page 1-5
Understanding BackboneFast, page 1-7
Understanding EtherChannel Guard, page 1-10
Understanding Root Guard, page 1-10
Understanding Loop Guard, page 1-11

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Cisco Catalyst 3560-X Specifications

General IconGeneral
Enclosure TypeRack-mountable - 1U
SubtypeGigabit Ethernet
Ports48 x 10/100/1000 + 4 x SFP
Flash Memory64 MB
Power DeviceInternal power supply
Voltage RequiredAC 120/230 V (50/60 Hz)
Operating SystemCisco IOS
Device TypeSwitch
PerformanceSwitching capacity: 128 Gbps
Jumbo Frame SupportYes
Routing ProtocolRIP-1, RIP-2, EIGRP
Remote Management ProtocolSNMP 1, RMON 1, RMON 2, RMON 3, RMON 9, Telnet, SNMP 3, HTTP, HTTPS
FeaturesDHCP support, VLAN support, QoS, IPv6 support, Syslog
Compliant StandardsIEEE 802.3, IEEE 802.3u, IEEE 802.3z, IEEE 802.1D, IEEE 802.1Q, IEEE 802.3ab, IEEE 802.1p, IEEE 802.3af, IEEE 802.3x, IEEE 802.3ad, IEEE 802.1w, IEEE 802.1x, IEEE 802.1s, IEEE 802.3ah, IEEE 802.1ag, IEEE 802.3at
StackingStackable
Security FeaturesSSH, RADIUS, TACACS+
ManagementCLI
Dimensions (H x W x D)17.5 in
Operating Temperature32 to 113 °F (0 to 45 °C)
Humidity10 - 95% (non-condensing)

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