Allied Telesis IPv4 manual AT-8948, Industry-leading Features, Policy-Based Quality of Service

Datasheet Switches

AT-8948

MultiIayer IPv4 and IPv6 Switch

AT-8948

4 x 1000BASE-X SFP uplinks

48 x 10/100BASE-T copper ports

Industry-leading Features

The AT-8948 offers performance, flexibility, and reliability. Packaged in a compact 1RU standard rack mount chassis, the AT-8948 is a highly featured access solution incorporating a new generation switching core for wire-speed layer 3 IPv4 and IPv6 routing, exceptional Quality of Service (QoS) features, and a robust hardware design with hot-swappable dual 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-8948 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-8948 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.

IPv6 Capability

The AT-8948P (IPv6 option) is one of the few switches on the market today that can provide high performance wire-speed IPv6 unicast and multicast routing, and IPv6 QoS features.The AT-8948P pushes IPv6 capability to the network edge and allows IPv6 early-adopters to get a head start in the migration to next generation IPv6 networks.

Key Features

•Huge capabilities and flexibility compressed into 1RU form factor

•Front to back cooling for optimum rack/cabinet airflow

•Operating temperature to 50°C (122°F)

•Internal dual hot-swappable AC or DC load- sharing power supplies remove the need for an expensive and rack space wasting RPS

•Layer 2 and 3 IPv4 and IPv6 routing all at wire-speed 1

•Built from a 37.6 Gbps switch fabric yielding 13.1 Million packets per second performance

•Provides 256K Layer 3 IPv4 address table entries 2

•Supports full 4096 VLANS with VLAN double tagging

•Private VLANs

•Supports 4096 Layer 3 interfaces

•Fixed ports: 48 x 10/100T on the front panel

•4 x SFP (Small Form Pluggable) gigabit uplinks on the front panel

•A Compact Flash port, accessible via the front panel, which enables configurations and other files to be saved or transferred between switches

•Asynchronous management port available via the front panel for ease of access

•SFP uplink ports will support any combination of 1000BASE-T, 1000BASE-SX, 1000BASE-LX or 1000BASE-ZX

•Full environmental monitoring, with alerts to network manager in case of failure of any PSU or FAN

•Extensive wire-speed traffic classification

•Policy-based QoS features

•Min / max bandwidth control with bandwidth slice resolution down to 1Kbps

•Buffered max bandwidth control at egress on all ports, and on each of 8 egress queues per port

•Three drop precedence (green, yellow and red) per priority queue on egress for improved TCP-IP bandwidth limiting performance

•SNMP MIB available for monitoring QoS traffic counters

•Low latency for voice and multi-media support

•SNMPv3 with extensive MIB support

•Advanced routing protocols OSPF, BGP-4, IS-IS, RIP and RIPv2, DVMRP, PIM-SM,

PIM-DM

•Support for equal cost multi path (ECMP) routing in hardware

•Multiple Spanning Tree Protocol (MSTP) (802.1s)

•Management stacking

•Port trunking

•Port mirroring

•Wire-speed multicasting

•Secure SSH capability on management and access

•802.1x support

•DHCP Snooping

•DHCP Option 82

•EPSR

1An optional accelerator card is required to expand the IPv6 capability to wire-speed performance.

2For 256K Layer 3 IPv4 address table entries either the 256 MB SDRAM or 512MB SDRAM must be fitted.

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