Cisco CATALYST 2960

1-4
Catalyst 2960 and 2960-S Switches Software Configuration Guide, Release 15.0(1)SE
OL-26520-01
Chapter 1 Overview
Features
– Smart Install enhancements supporting client backup files, zero-touch replacement for clients
with the same product-ID, automatic generation of the image list file, configurable file
repository, hostname changes, transparent connection of the director to client, and USB storage
for image and seed configuration.
– Smart Install enhancements in Cisco IOS Release 12.2(58)SE including the ability to manually
change a client switch health state from denied to allowed or hold for on-demand upgrades, to
remove selected clients from the director database, to allow simultaneous on-demand upgrade
of multiple clients, and to provide more information about client devices, including device
status, health status, and upgrade status.
• Call Home to provide e-mail-based and web-based notification of critical system events. Users with
a service contract directly with Cisco Systems can register Call Home devices for the Cisco Smart
Call Home service that generates automatic service requests with the Cisco TAC.
Performance Features
• Cisco EnergyWise manages the energy usage of endpoints connected to domain members. For more
information, see the Cisco EnergyWise documentation on Cisco.com.
• EnergyWise Phase 2.5 enhancements that add support for a query to analyze and display domain
information and for Wake on LAN (WoL) to remotely power on a WoL-capable PC.
• 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.
• SFP+ support for 10Gigabit speeds (Catalyst 2960-S only)
• Support for up to 9000 bytes for frames that are bridged in hardware and up to 2000 bytes for frames
that are bridged by software
• IEEE 802.3x flow control on all ports (the switch does not send pause frames).
• Up to 20 Gb/s of forwarding rates in a Catalyst 2960-S switch stack.
• EtherChannel for enhanced fault tolerance and for providing up to 8 Gb/s (Gigabit EtherChannel)
or 800 Mb/s (Fast 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 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.
• Internet Group Management Protocol (IGMP) snooping for IGMP Versions 1, 2, and 3 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).
• IGMP snooping querier support to configure switch to generate periodic IGMP general query
messages.