3Com Switch 4500 Family Gegevensblad - Pagina 6

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SPECIFICATIONS

All information in this section is

relevant to all members of the 3Com

Switch 4500 10/100 family, unless

otherwise stated.

CONNECTORS

26-port non-PWR

24 auto-negotiating 10BASE-T/

100BASE-TX ports configured as auto

MDI/MDIX

2 dual-personality Gigabit port pairs,

configurable as 1000BASE-T or SFP

26-port PWR

24 auto-negotiating 10BASE-T/

100BASE-TX ports configured as auto

MDI/MDIX; IEEE 802.3af in-line power

2 dual-personality Gigabit SFP pairs;

unit ships with two 1000BASE-T SFPs

50-port models

48 auto-negotiating 10BASE-T/

100BASE-TX ports configured as auto

MDI/MDIX; IEEE 802.3af in-line

power for PWR models

2 dual-personality Gigabit SFP pairs;

units ship with two 1000BASE-T SFPs

PERFORMANCE

26-port

8.8 Gbps switching capacity,

maximum

6.5 Mpps forwarding rate, maximum

50-port

13.6 Gbps switching capacity,

maximum

10.1 Mpps forwarding rate, maximum

All models

Wirespeed performance across all

ports within stack or fabric

Store-and-forward switching; latency

<10 µs

2 Gbps full-duplex stacking bandwidth

LAYER 2 SWITCHING

addresses in address table

8,000 MAC

12 static MAC addresses, in addition to

default address

256 Port-based VLANs (IEEE 802.1Q)

IEEE 802.3ad Link Aggregation

Control Protocol (LACP); automated

and manual aggregation

Per-switch trunk groups: 13 groups

(26-port); 25 groups (50-port)

8 10/100 ports or 2 Gigabit ports per

group

Auto-negotiation of port speed and

duplex

IEEE 802.3x full-duplex flow control

Back pressure flow control for half-

duplex

Supports broadcast storm suppression

per VLAN

IEEE 802.1D Spanning Tree Protocol

(STP)

IEEE 802.1w Rapid Spanning Tree

Protocol (RSTP)

Bridge Protocol Data Unit (BPDU)

protection

Internet Group Management Protocol

(IGMP) snooping on Layer 2 interfaces

Filtering for 128 multicast g

roups

3Com

Switch 4500 10/100 Family

LAYER 3 SWITCHING

Hardware

based routing

12 static routes, in addition to default

address

1,990 dynamic Address Resolution

Protocol (ARP) entries; 10 static

4 IP interfaces

Routing Information Protocol (RIP), v1

and v2; supports 2,000 entries

Dynamic Host Configuration Protocol

Relay (DH

CP Relay)

CONVERGENCE

dware queues per port

Eight har

Weighted Round Robin (WRR)

IEEE 802.1p Class of Service/Quality

of Service (CoS/QoS) on egress

Auto prioritization of voice traffic

determined by vendor OUI

DiffServ Code Point Expedited

Forwarding (DSCP EF) remarking for

prioritization of VoIP traffic

Traffic shaping with port-based egress

rate limiting; application and protocol

blocking

IEEE 802.3af Power over Ethernet

standards-compli

ant (PWR models)

POE (PWR MODELS ONLY)

IEEE 80

2.3af PoE injection into

Category 5 or 5e LAN wiring (300 W

total maximum)

Available standards-based DC

supplemental power system supplies

up to 15.4 W each of power to all PoE

ports in a switch or s

tack (5,914 W

total maximum)

SECURITY

IEEE 802.

1X Network login user

authentication:

• EAP over LAN (EAPoL) transport

with EAP-MD5, PAP and CHAP

authentication

• Multiple users per port

• 1024 users per fabric

Local and RADIUS server authentication

RADIUS session accounting

Automatic VLAN assignment via

RADIUS server

Wirespeed packet filtering in hard-

ware

ACLs filter at Layers 2, 3 and 4:

• Source/destination MAC address

• Ethernet type

• Source/destination IP address

• Source/destination TCP port

• Source/destination UDP port

RADIUS Authenticated Device

Access (RADA): authenticate devices

based on MAC address against

RADIUS server, and assign VLAN ID

and ACL

Port-based MAC address Disconnect

Unknown Device (DUD)

IEEE 802.1X user authentication of

switch management on switch Telnet

and console sessions; four access

privilege levels

Hierarchical management and pass-

word protection for management

interface

SNMP v3 encryption

SSH