Cisco Catalyst 2940 Series - Page 20

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Cisco Catalyst Family Feature Comparison (continued)
Fixed-Conguration Switches
Model/Series Catalyst 3560 Catalyst 2960
Availability and Resiliency
Switch Redundancy
IOS Software Modularity
Non-stop Forwarding/Stateful Switchover
(NSF/SSO)
NSF-aware •
Redundant Power Supplies External only External only
Redundant Fans
Redundant Fan Trays
Redundant Supervisors
Generic Online Diagnostics (GOLD) •
Basic Support for GOLD Services •
Power Supply Failure Redundancy • •
Power Circuit Failure Redundancy
Network Protocols
Unidirectional Link Detection (UDLD) • •
Gateway Load Balancing Protocol (GLBP)
Hot Standby Routing Protocol (HSRP) •
Virtual Router Redundancy Protocol
(VRRP)
UplinkFast • •
BackBoneFast • •
RSTP (802.1w) • •
PortFast • •
Per VLAN STP (PVSTP) • •
Per VLAN RSTP (PVRSTP) • •
Multiple Instance STP (MISTP) • •
MSTP (802.1s) • •
STP Root Guard • •
BDPU Guard • •
Loop Guard • •
IP Event Dampening
Bidirectional Forwarding Detection
Digital Optical Monitoring
Catalyst 2940 Catalyst Express
External
24, PC only
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Introduction