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Allied Telesis

www.alliedtelesis.com

AT-9448T/SP 

| 48 Port 10/100/1000T Managed Layer 3 Switch with 4 Combo SFP Bays

Hardware Specifications

Physical Characteristics

Dimensions (H x W x D)

4.4cm x 43.8cm x 30.4cm  
(1.75” x 17.3” x 12”)

Weight

4.61kg
(10.15lbs.)

System Capacity

64MB RAM
16MB flash memory
200MHz PowerPC CPU
4096 VLANs
16000 MAC addresses

Performance

Wirespeed switching on all Ethernet ports
14,880pps for 10Mbps Ethernet
148,800pps for 100Mbps Ethernet
1,488,000pps for 1000Mbps Ethernet

Ethernet throughput

71.242Mpps

Switch fabric 

96Gbps

Power Characteristics

Voltage:

100-240V AC

Current:

4.0/2.0A

Frequency:

50-60Hz

Max power consumption:

120 Watts

Environmental Specifications

Operating temperature:

0ºC to 40ºC
(32ºF to 104ºF)

Storage temperature:

-20ºC to 70ºC
(-13ºF to 158ºF)

Operating humidity:

5% to 90% non-condensing

Storage humidity:

5% to 95% non-condensing

Max operating altitude:

3,048m (10,000 ft)

Recommended ventilation 
on all sides:

10cm (4”)

MTBF

250,000 hrs.

Electrical/Mechanical Approvals

Safety UL 60950-1, CSA C22.2 No. 60950-1-03,
EN60950-1, EN60825-2 (TUV)
EMI FCC Part 15 Class A, EN55022 Class A, EN55024
Immunity, VCCI Class A, C-TICK, EN61000-3-2,
EN61000-3-3, AS/NZS 3548 (Australia/New Zealand)
Immunity EN55024

Country of Origin

Singapore

Software Specifications

Layer 3 Support

RIPv1
RIPv2
ECMP
Static IPv4 routing (1024 routes)

Interface Standards

IEEE 802.3 

10T and 10FL

IEEE 802.3u 

100TX and 100FX

IEEE 802.3z 1000SX
IEEE 802.3ab 1000T

General Standards

IEEE 802.1d

Bridging

IEEE 802.3ac 

VLAN tag frame extension

IEEE 802.3x 

BackPressure/ flow control

Redundancy

Static and dynamic port trunking (with six trunk 
groups and up to eight ports per trunk)
IEEE 802.3ad 

32 LACP link aggregation

1

IEEE 802.1D Spanning-Tree 

Protocol

IEEE 802.1w 

Rapid Spanning-Tree

IEEE 802.1s Multiple 

Spanning-Tree

BPDU guard

1

Loop guard

1

Router Redundancy Protocol (RRP) snooping
Dual software images, dual configuration files

Traffic Management and Quality 
of Services (QoS)

Layer 2, 3 and 4 criteria
Flow groups, traffic classes and policies
DSCP replacement
IEEE 802.1Q priority replacement
Type of Service replacement
Type of Service to IEEE 802.1Q priority replacement
IEEE 802.1Q priority to Type of Service replacement
Maximum bandwidth control
Burst size control
Ingress rate limiting
Head of line blocking prevention
Support for ingress and egress ports
Eight egress queues per port
IEEE 802.1p Class of Service with Strict and Weighted
Round Robin Scheduling

Multicast

RFC 1112 

IGMP snooping (v1)

RFC 2236 

IGMP snooping (v2)

RFC 2710 

Multicast Listener Discovery
(MLD) snooping (v1)

RFC 3810 

Multicast Listener Discovery 
(MLD) snooping (v2)
IGMP snooping querier

1

Management and Monitoring

RFC 1157 

SNMPv1

RFC 1901 

SNMPv2

RFC 3411 

SNMPv3

RFC 1213 

MIB-II

RFC 1215 

TRAP MIB

RFC 1493 

Bridge MIB

RFC 2863 

Interfaces group MIB

RFC 1643 

Ethernet-like MIB

RFC 1757 

RMON 4 groups: Stats,
History, Alarms and Events

RFC 2674 

IEEE 802.1Q MIB

RFC 1866 

HTML

RFC 2068 

HTTP

RFC 2616 

HTTPS

RFC 854 

Telnet server

RFC 1350 

TFTP client

AlliedTelesis Private MIB

IP address allocation:
RFC 951 / RFC 1542 

BOOTP client

RFC 2131

DHCP client manual

RFC 2030 

SNTP, Simple Network 
Time Protocol 

BootP/DHCP relay
Group link control

1

Link flap protection

1

Syslog client
Two event logs:
4,000 event capacity in temporary memory
2,000 event capacity in permanent memory

Management Access  Methods

Out of band management (serial port)
In-band management (over the network) using Telnet,
web browser or SNMP
Enhanced Stacking

Management Interfaces

Menus

AlliedWare Plus

TM

CLI

Multiple management sessions

(up to three administrators)

Command line
Web browser
SNMP v1/ v2/ v3

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