Allied Telesis IPv6 Datenblatt
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Switches
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.
Allied Telesis
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
1
wire-speed
•
Built from a 37.6 Gbps switch fabric yielding
13.1 Million packets per second
performance
•
Provides 256K Layer 3 IPv4 address table
2
entries
•
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
1
An optional accelerator card is required to expand the
IPv6 capability to wire-speed performance.
2
For 256K Layer 3 IPv4 address table entries either the
256 MB SDRAM or 512MB SDRAM must be fitted.
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