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Description Specification
Hardware tables and
scalability
MAC addresses
128,000
Number of VLANS
4096
Spanning-tree instances
• RSTP: 512
• MSTP: 64
Access control list (ACL)
entries
• 2000 ingress
• 1000 egress
Routing table
• 16,000 prefixes and 16000 host entries*
• 8000 multicast routes*
Number of EtherChannels
64 (with vPC)
Number of ports per
EtherChannel
16
Buffers
9 MB shared
Boot flash memory
2 GB
Power Number of power supplies
2 (redundant)
Power supply types
• AC (forward and reversed airflow)
• DC (forward and reversed airflow)
Typical operating power
• 172 Watts (with Twinax at 100% load;2 power supply units
[PSUs])
• 174 Watts (with short-reach optics at 100% load; 2 PSUs)
Maximum power
227 Watts
Input voltage
100 to 240 VAC
Frequency
50 to 60 Hz
Power supply efficiency
89 to 91% at 220V
Typical heat dissipation
• 587 BTU/hr (16p with Twinax at 100% load; 2 PSU)
• 594 BTU/hr (16p with SR4 optics at 100% load; 2 PSU)
Maximum heat dissipation
775 BTU/hr
Cooling
• Forward and reversed airflow schemes
• Forward airflow: Port-side exhaust (air enters through fan tray and power supplies and exits
through ports); supported with AC and DC power supplies
• Reversed airflow: Port-side intake (air enters through ports and exits through fan tray and
power supplies); supported with AC power supply only
• Single fan tray with redundant fans
• Hot swappable (must swap within 1 minute)
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