Allied Telesis www.alliedtelesis.com
Datasheet | Switches
AT-9924T
S
Datasheet | Switches
AT-9924Ts
2 x 20 Gigabit expansion bays
24 x 10/100/1000BASE-T (RJ-45)
copper ports
Unmatched Flexibility
The AT-9924Ts switches have two high-speed
20 Gbps expansion bays providing a high level
of port flexibility and application versatility
unmatched by any other 1RU Gigabit Ethernet
switch on the market. Expansion modules can
be used in a variety of configurations to provide
a tailored solution to meet wide-ranging physical
networking requirements. Start with an
AT-9924Ts base, add expansion modules to suit
your network needs, and change configurations
as your network evolves and extends.The
following examples illustrate this:
Add one 10 GbE expansion module and hot-
swappable XFP to provide a single high-speed,
high-capacity fiber uplink. Add a second 10 GbE
module as bandwidth needs increase.This is
ideal for wiring closet aggregation of gigabit to
the desktop links. It's also ideal for aggregating
gigabit uplinks from other network switches, with
the option of either 10 Gbps or 20 Gbps uplink
capacity to the network core. Resiliency can be
achieved by using two 10 GbE modules and
MSTP (802.1s) for fast failover on link failure.
Ethernet Protected Switched Rings (EPSR) and
10GbE modules allow several AT-9924Ts
switches to form a protected ring with sub
50ms failover.This feature is perfect for high
performance at the core of enterprise or
provider access networks.
Add one or two 12 port 10/100/1000BASE-T
(RJ-45) copper expansion modules to provide
maximum Gigabit Ethernet port density in a
compact 1RU chassis for gigabit to the desktop
or gigabit aggregation applications. Add one or
two 12 x 1000BASE-X (SFP) expansion
modules to provide flexible port options for
aggregating mixed copper and fiber links from
servers in server farm and data center
Key Features
Performance
• Layer 2 and 3 IPv4 switching and routing all
at wire-speed
• Built from a 150 Gbps switch fabric yielding
71.4 Million packets per second performance
• Provides up to 256K Layer 3 address
table entries
• Supports full 4096 VLANS with VLAN
double tagging
• Supports 4096 Layer 3 interfaces
• Private VLANs, providing security and port
isolation of multiple customers using the
same VLAN
• Supports 9KByte Jumbo frame size
1
for data
center and server aggregation applications
• Gigabit SFP ports will support any
combination of 10/100/1000BASE-T,
1000BASE-SX, 1000BASE-LX, 1000BASE-ZX
or 1000BASE-ZX CWDM SFPs
• Extensive wire-speed traffic classification for
ACLs and QoS
• Advanced routing protocols OSPF, BGP4,
RIP and RIPv2, DVMRP, PIM-SM, PIM-DM
• Wire-speed multicasting
Availability
• Two 20 Gbps expansion bays supporting a
choice of modules including 1x 10 GbE, 12 x
1GbE (SFP) and 12 x 1GbE (RJ-45) for port
flexibility and application versatility
• 1RU form factor, high port density and
front-to-back cooling, ideal for high-density
rack and wiring closet installations
• Internal dual hot-swappable AC or DC load-
sharing power supplies remove the need for
an expensive and rack space wasting
redundant power supply (RPS)
• Full environmental monitoring of PSUs, fans,
temperature and internal voltages, with
SNMP traps to alert network managers in
case of any failure
• Bad cable detection - reports total cable
length and distance to fault (fixed copper
ports only)
Quality of Service (QoS)
• Policy based QoS features
• Min / max bandwidth control with
bandwidth slice resolution down to 1Kbps
for QoS traffic classes
• Buffered max bandwidth control at egress
on all ports, and on each of 8 egress queues
per port
• Two-rate three-color (green, yellow, red)
bandwidth metering, with burst sizes for
improved TCP-IP bandwidth limiting
performance
• Low switching latency essential for Voice
over IP (VoIP) and real-time streaming
media applications
Resiliency
• STP, RSTP, MSTP (802.1s)
• Port trunking (802.3ad LACP)
• VRRP
• EPSR
Management
• Web Management/ GUI
• Out of band 10/100/1000 Ethernet
management port and asynchronous
management port, both on the front panel
for ease of access
• An SD memory card socket on the front
panel, which allows software release files,
configurations and other files to be stored
for backup and distribution to other
switches. Check with ATI representative
for availability
• Port mirroring
• SSH, SSL, SFTP and SNMPv3 for secure
management
• 802.1x support
• TACACS+, RADIUS
1
When Jumbo frame support is enabled, the MRU is
9714 bytes for ports operating at 10/100Mbps, and
10,240 bytes (10KBytes) at 1Gbps (but maximum
supported Layer 3 frame size is 9KB)
Enhanced Gigabit Layer 3+ Expandable Switch
(13 pages)
(51 pages)
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