3 C O M
®
O F F I C E C O N N E C T M A N A G E D S W I T C H 9 FA M I LY D ATA S H E E T
2
Features and Benefits
PERFORMANCE
3.6 Gbps switching capacity
2.69 Mpps forwarding rate
LAYER 2 SWITCHING
MAC Address
8K MAC addresses
VLAN
60 VLANs (IEEE 802.1Q)
Auto-negotiation
Auto-negotiation of port speed, duplex, and connection (MDI/MDIX)
Traffic control
IEEE 802.3x full-duplex flow control
Back pressure flow control for half-duplex
Broadcast Storm Suppression (3,000 pps default threshold)
Spanning Tree
IEEE 802.1D Spanning Tree Protocol (STP)
IEEE 802.1w Rapid Spanning Tree Protocol (RSTP)
• Fast-start mode
• Spanning tree enable/disable per port
Multicast Snooping
IGMP v1, v2
IGMP Querier
Filtering for 128 multicast groups
CONVERGENCE
Priority Queues
Four hardware queues per port
Weighted Round Robin queuing
Traffic Prioritization
CoS Marking / Remarking
IEEE 802.1p to DSCP mapping
Auto classification of 3Com NBX
®
telephony traffic
Priority based on:
• IEEE 802.1p CoS
• DSCP (DiffServ Code Point)
• TCP/UDP source or destination port number
• Default port priority
• IP Address / Protocol
Traffic Shaping
Egress rate limiting, port-based:
• 1 Mbps increments (10/100 ports)
• 8 Mbps increments (Gigabit ports)
Application and protocol blocking
Power over Ethernet
Port 1, 2, 5 and 6 supports IEEE 802.af
SECURITY
Network Login
IEEE 802.1X with RADIUS authentication
Management
Web interface (HTTP and HTTPS)
Command line interface (Serial, Telnet and SSH)
SNMP
MANAGEMENT
Remote Management
SNMP v1, v2 and v3
User-selectable management VLAN
Software
Backup and restore
TFTP configuration: download
TFTP agent: download
Configuration
Command line
Serial RJ45
TELNET
Web-based
SNMP
Mirror port / RAP (Roving Analysis Port)
One-to-one
RMON (Remote Monitoring)
Statistics, history, alarm, events, filter and capture
IP address allocation
DHCP, Manual
Network Time Protocol (NTP)
Provides an accurate and consistent timestamp to all switches within the intranet. This feature is important in
with peer-to-peer authentication
multible branch office deployment