Справочник Пользователя для 3com 3812

3 C O M

S U P E R S TA C K

3 S W I T C H 3 8 0 0 FA M I LY

Features

PERFORMANCE

Backplane Capacity

SuperStack 3 Switch 3812: 24 Gbps; Switch 3824: 48 Gbps; Switch 3848: 96 Gbps

Forwarding Rate

SuperStack 3 Switch 3812: 17.8 Mpps; Switch 3824: 35.7 Mpps; Switch 3848: 71.0 Mpps

Store-and-forward switching

LAYER 2 SWITCHING

MAC Address

16K MAC addresses

Secure MAC addresses (1,024 addresses)

VLAN

255 VLANs (IEEE 802.1Q)

Link Aggregation

Manual and Automatic (LACP) as per IEEE 802.3ad

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

Jumbo Frames Support

9K packets

CONVERGENCE

Priority Queues

Eight hardware queues per port

Weighted Round Robin queuing

Strict priority queuing

QoS

Priority based on:

• User-specified MAC address range

• User-specific IP address

• DSCP (DiffServ Code Point)

• IEEE 802.1p Class of Service (CoS) priority

• TCP/UDP destination port number

• Default port priority

Auto classification of 3Com IP telephony solutions traffic

Rate Limiting

Ingress and egress rate limiting, port-based:

• 1 Mbps increments from 1M to line rate

Multicast

Multicast snooping filtering

256 multicast groups

IGMP v1 and v2

IGMP Query

SECURITY

Network and Switch Login

IEEE 802.1X user authentication

• RADIUS authentication

• Secure mode (locks MAC address)

Packet Filtering

Wirespeed packet filtering in hardware

Port-based Access Control Lists (ACLs)

Supports a maximum of 100 ACL rules per system (DSCP and TCP/UDP port-based CoS)

ACLs filter on source/destination IP address

Switch Management

RADIUS management of switch passwords

Trusted IP management addresses

Telnet

SSH v1, v2 (56 bit DES)

SSL (HTTPS)

• 40 bit

• 56 bit DES

F R E E D O M T O C H O O S E A B E T T E R N E T W O R K