Cisco WS-C3550-12G Switch Guide - Page 24
continued, Modular Switches, Availability and Resiliency
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Introduction Cisco Campus Feature Comparison (continued) Modular Switches Model/Series Availability and Resiliency Switch Redundancy Virtual Switching System (VSS) Virtual Port Channel (vPC) Software Modularity Non-stop Forwarding/Stateful Switchover (NSF/SSO) NSF-aware Redundant Power Supplies Redundant Fans Redundant Fan Trays Redundant Supervisors Generic Online Diagnostics (GOLD) Basic Support for GOLD Services Power Supply Failure Redundancy Power Circuit Failure Redundancy StackWise Plus StackPower Network Protocols Unidirectional Link Detection (UDLD) Gateway Load Balancing Protocol (GLBP) Hot Standby Routing Protocol (HSRP) Virtual Router Redundancy Protocol (VRRP) UplinkFast Backbone Fast 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 22 Nexus 7000 Catalyst 6500 Catalyst 4500 • • • • • • • • • • • • • • • • • • • • • • N/A N/A • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •