16
MODU LA R SWI TC HE S FIXE D- CO NF IG UR ATI ON S WI TC HE S
Catalyst 6500 Catalyst 4500 Catalyst 4900 Catalyst 3750 Catalyst 3560 Catalyst 2960 Catalyst 2950 Catalyst 2940 Catalyst
Express 500
AVAIL AB IL IT Y AN D RE SI LI EN CY continued
Network Protocols continued
Hot Standby Routing Protocol (HSRP) • • • • •
Virtual Router Redundancy Protocol (VRRP) • • •
UplinkFast/BackBoneFast/802.1w • • • • • • • • •
PortFast • • • • • • • • •
Per VLAN STP (PVSTP) • • • • • • • • •
Multiple Instance STP (MISTP)/802.1s • • • • • • • •
STP Root/BDPU/Loop Guard • • • • • • • • •
IP Event Dampening •
Bidirectional Forwarding Detection •
Digital Optical Monitoring • • •
Flexlink • • • •
DELI VE RY OP TI MI ZA TI ON
Quality of Service
Number of Queues per Port up to 8 4 4 4 4 4 4 4 4
Congestion Avoidance • • • WTD WTD WTD WTD
L2–L3 Rewrite/Mapping • • • • • • EI only
Ingress Queuing •N/A N/A • • •
Ingress Strict Priority •N/A N/A • • •
Egress Queuing • • • • • • • • •
Egress Strict Priority • • • • • • • • •
Traffic Classification • • • • • • • • •
IP Service Level Agreement •
Policers
H/W-based Policing • •
Per-port Policers • • • • • • EI only
Per-VLAN Policers • • •
H/W-based Aggregate Policers • • • • •
Hierarchical Policers •
User-based (Source IP) Rate Limiting • •
Shaped Round Robin • • • •
Cisco Catalyst Switches: FEATURE COMPARISON