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Catalyst 3750-X and 3560-X Switch Software Configuration Guide
OL-21521-01
Chapter 1 Overview
Features
• Smart Install to allow a single point of management (director) in a network. You can use Smart
Install to provide zero touch image and configuration upgrade of newly deployed switches and
image and configuration downloads for any client switches. For more information, see the Cisco
Smart Install Configuration Guide on Cisco.com.
• AutoSmartPort enhancements, which adds support for macro persistency, LLDP-based triggers,
MAC address and OUI-based triggers, remote macros as well as for automatic configuration based
on these two new device types: Cisco Digital Media Player (Cisco DMP) and Cisco IP Video
Surveillance Camera (Cisco IPVSC).
Performance Features
• Cisco EnergyWise manages the energy usage of power over Ethernet (PoE) entities.
For more information, see the Cisco EnergyWise Version 2 Configuration Guide on Cisco.com.
• Autosensing of port speed and autonegotiation of duplex mode on all switch ports for optimizing
bandwidth
• Automatic-medium-dependent interface crossover (auto-MDIX) capability on 10/100- and
10/100/1000-Mb/s interfaces and on 10/100/1000 BASE-TX SFP module interfaces that enables the
interface to automatically detect the required cable connection type (straight-through or crossover)
and to configure the connection appropriately
• Support for the maximum packet size or maximum transmission unit (MTU) size for these types of
frames:
–
Up to 9216 bytes for routed frames
–
Up to 9216 bytes for frames that are bridged in hardware and software through Gigabit Ethernet
ports and 10-Gigabit Ethernet ports
• IEEE 802.3x flow control on all ports (the switch does not send pause frames)
• Up to 64 Gb/s of throughput in a Catalyst 3750-X-only switch stack
• EtherChannel for enhanced fault tolerance and for providing up to 8 Gb/s (Gigabit EtherChannel)
or 80 Gb/s (10-Gigabit EtherChannel) full-duplex bandwidth among switches, routers, and servers
• Port Aggregation Protocol (PAgP) and Link Aggregation Control Protocol (LACP) for automatic
creation of EtherChannel links
• Forwarding of Layer 2 and Layer 3 packets at Gigabit line rate
• Forwarding of Layer 2 and Layer 3 packets at Gigabit line rate across the switches in the stack
• Per-port storm control for preventing broadcast, multicast, and unicast storms
• Port blocking on forwarding unknown Layer 2 unknown unicast, multicast, and bridged broadcast
traffic
• Cisco Group Management Protocol (CGMP) server support and Internet Group Management
Protocol (IGMP) snooping for IGMP Versions 1, 2, and 3:
–
(For CGMP devices) CGMP for limiting multicast traffic to specified end stations and reducing
overall network traffic
–
(For IGMP devices) IGMP snooping for efficiently forwarding multimedia and multicast traffic
• IGMP report suppression for sending only one IGMP report per multicast router query to the
multicast devices (supported only for IGMPv1 or IGMPv2 queries)