16
MODULAR SWITCHES FIXED-CONFIGURATION SWITCHES
Catalyst 6500 Catalyst 4500 Catalyst 4900 Catalyst 3750 Catalyst 3560 Catalyst 2960 Catalyst 2950 Catalyst 2940
Catalyst
Express 500
AVAILABILITY AND RESILIENCY 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
• • • •
DELIVERY OPTIMIZATION
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