Datasheet

Allied Telesis www.alliedtelesis.com
Datasheet | Switches
AT-9900 SERIES
Multilayer IPv4 and IPv6 Gigabit Switches
AT-9924T
24 x 10/100/1000BASE-T copper ports and
4 x 1000BASE-X SFP combo ports
AT-9924SP
24 x 100/1000BASE-X SFP ports
Industry Leading Features
The AT-9900 series delivers performance,
flexibility, and reliability. Packaged in a 1RU
standard rack mount chassis, all AT-9900 switches
incorporate a switching core that yields wire-
speed Layer 3 IPv4 routing, exceptional Quality of
Service (QoS) features, and a robust hardware
design with dual hot-swappable power supplies.
Policy-based Quality of Service
Comprehensive, low latency QoS features
operating at wire-speed provide flow-based
traffic management with full classification,
prioritization, traffic shaping and min/max
bandwidth profiles. The AT-9924 QoS features
are ideal for service providers wanting to ensure
maximum availability of premium voice, video
and data services, and at the same time manage
customer service level agreements (SLAs). For
enterprise customers, the AT-9924 QoS features
protect productivity by guaranteeing
performance of business-critical applications
including VoIP services, and help restore and
maintain responsiveness of enterprise
applications in the networked workplace.
EPSR
Ethernet Protection Switched Rings prevents
loops in ring-based Ethernet networks. EPSR
provides high availability for mission critical
traffic, preventing loss of video, voice, or data
packets in the event of device failure.
Management Stacking
Stacking provides CLI-based management of up
to nine switches with the same effort as for one
switch.The Allied Telesis solution uses open
standards interfaces as stacking links so that
many switches can be stacked across different
sites, which is not possible using the proprietary
stacking cable solutions. Also, the use of open
standards interfaces avoids the use of expensive
specialized hardware with limited topologies.
Reliability
Dual internal hot-swappable load-sharing power
supplies provide ultimate space-saving reliability and
redundancy for maximum service uptime. Both
110/240V AC and 48V DC PSU versions are
available. There is no requirement for an external
RPS, and combined with front-to-back cooling and
a 1RU height, the AT-9924 is perfect for the high-
density rack environment where conditions are
demanding and space is at a premium.
Power to Perform
The AT-9924 top-of-the-line multilayer switch is
part of a series built to meet the needs of high
performance network services. Together with
Allied Telesis' advanced software feature set,
AlliedWare, the AT-9924 is a superior high-
density gigabit switching solution, bringing true
intelligence to the network.
Key Features
• 1RU form factor
• Non-blocking Layer 2 and 3 IPv4 switching
and routing at wire-speed
• Provides up to 256K Layer 3 IPv4 address
table entries
• Supports full 4096 VLANS
• Supports 4096 Layer 3 interfaces
• Supports VLAN double tagging
• Private VLANs, providing security and port
isolation of multiple customers using the same
VLAN
• 802.1x support for network security
• Supports 9KByte Jumbo frame size
1
• 100MB SFP support (AT-9924SP-V2 only)
• Full environmental monitoring, with alerts to
network manager in case of failure
• Extensive wire-speed traffic classification
• Comprehensive wirespeed QoS features
• Low switching latency, ideal for voice and
multi-media applications
• Advanced routing protocols OSPF, BGP-4, RIP
and RIPv2, DVMRP, PIM-SM, PIM-DM
• STP, RSTP, MSTP (802.1s)
• DHCP Snooping
• DHCP Option 82
• Port trunking (802.3ad LACP)
• Port mirroring
• Asynchronous management port
• SSH for secure management
• SNMPv3
• GUI
• EPSR
• VRRP
11
When Jumbo frame support is enabled, the MRU is
9710 bytes for ports operating at 10/100Mbps, and
10,240 bytes at 1Gbps, however maximum layer 3
supported frame size is 9198 bytes.