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Catalyst 3750-X and 3560-X Switch Software Configuration Guide
OL-21521-01
Chapter 1 Overview
Features
• IPv6 default router preference (DRP) for improving the ability of a host to select an appropriate
router
• Support for EIGRP IPv6, which utilizes IPv6 transport, communicates with IPv6 peers, and
advertises IPv6 routes
• IP unicast reverse path forwarding (unicast RPF) for confirming source packet IP addresses.
• Nonstop forwarding (NSF) awareness to enable the Layer 3 switch to continue forwarding packets
from an NSF-capable neighboring router when the primary route processor (RP) is failing and the
backup RP is taking over, or when the primary RP is manually reloaded for a nondisruptive software
upgrade (requires the IP services feature set)
• NSF-capable routing for OSPF and EIGRP that allows the switch to rebuild routing tables based on
information from NSF-aware and NSF-capable neighbors (only Catalyst 3750-E Catalyst 3750-X
switches)
• The ability to exclude a port in a VLAN from the SVI line-state up or down calculation
• Intermediate System-to-Intermediate System (IS-IS) routing supports dynamic routing protocols for
Connectionless Network Service (CLNS) networks.
Power over Ethernet Features
• Ability to provide power to connected Cisco pre-standard and IEEE 802.3af-compliant powered
devices from Power over Ethernet (PoE)-capable ports if the switch detects that there is no power
on the circuit.
• Support for IEEE 802.3at (PoE+), that increases the available power for powered devices from
15.4 W to 30 W per port.
• Support for CDP with power consumption. The powered device notifies the switch of the amount of
power it is consuming.
• Support for Cisco intelligent power management. The powered device and the switch negotiate
through power-negotiation CDP messages for an agreed power-consumption level. The negotiation
allows a high-power Cisco powered device to operate at its highest power mode.
• Automatic detection and power budgeting; the switch maintains a power budget, monitors and tracks
requests for power, and grants power only when it is available.
• Ability to monitor the real-time power consumption. On a per-PoE port basis, the switch senses the
total power consumption, polices the power usage, and reports the power usage.
• StackPower technology on Catalyst 3750-X switches running the IP base or IP services feature set.
Monitoring Features
• Switch LEDs that provide port- and switch-level status on Catalyst 3560-X switches
• Switch LEDs that provide port-, switch-, and stack-level status on Catalyst 3750-X switches
• MAC address notification traps and RADIUS accounting for tracking users on a network by storing
the MAC addresses that the switch has learned or removed
• Switched Port Analyzer (SPAN) and Remote SPAN (RSPAN) for traffic monitoring on any port or
VLAN
• SPAN and RSPAN support of Intrusion Detection Systems (IDS) to monitor, repel, and report
network security violations
