Datasheet

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• Layer 2–4 hardware-based switch engine (application-specific integrated circuit [ASIC]-based)

• Unicast and multicast routing entries: 32,000

• Support for 2048 active VLANs and 4096 VLAN IDs per switch

• Layer 2 multicast addresses: 16,384

• MAC addresses: 32,768

• Policers: 512 ingress and 512 egress

• ACL or quality-of-service (QoS) entries: 32,000

• Uplinks: 4 alternatively wired SFP ports with (Gigabit EtherChannel) support

• Latency: 6 microseconds for 64-byte packets

• Switched virtual interfaces (SVIs): 2048

• STP instances: 1500

• Internet Group Management Protocol (IGMP) snooping entries: 8000

Layer 2 Features

• Layer 2 hardware forwarding at 72 Mpps

• Layer 2 switch ports and VLAN trunks

• IEEE 802.1Q VLAN encapsulation

• Inter-Switch Link (ISL) VLAN encapsulation

• Dynamic Trunking Protocol (DTP)

• VLAN Trunking Protocol (VTP) and VTP domains

• Per-VLAN Spanning Tree Protocol (PVST+) and Per-VLAN Rapid Spanning Tree Protocol (PVRST)

• Spanning-tree PortFast and PortFast guard

• Spanning-tree UplinkFast and BackboneFast

• 802.1s

• 802.1w

• Spanning-tree root guard

• Cisco Discovery Protocol

• IGMP snooping v1, v2, and v3

• 802.3ad

• Cisco EtherChannel

technology, Cisco Fast EtherChannel technology, and Cisco Gigabit EtherChannel technology support

• Port Aggregation Protocol (PAgP)

• Unidirectional Link Detection Protocol (UDLD) and aggressive UDLD on the SFP ports

• Q-in-Q in hardware

• Layer 2 protocol tunneling