Allied Telesis x900-12X Series Fiche technique - Page 3

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Allied Telesis x900-12X Series Fiche technique

x900-12X AND 24X SERIES

What's new?

Dynamic Host Configuration Protocol (DHCP) Snooping

DHCP servers allocate IP addresses to clients, and the switch keeps a record of addresses issued on each port. IP Source Guard checks against this

DHCP snooping database to ensure only clients with specific IP and/or MAC address can access the network. DHCP snooping can be combined with

other features, like Dynamic ARP Inspection, to increase security in layer 2 switched environments, and also provides a traceable history, which meets

the growing legal requirements placed on Service Providers.

sFlow

sFlow is an industry standard technology for monitoring high speed switched networks. It gives complete visibility into the use of networks enabling

performance optimization, accounting/billing for usage, and defence against security threats. Sampled packets sent to a collector ensure it always has a

real-time view of network traffic.

VCStack Fast Failover

Virtual Chassis Stacking (VCStack) delivers resiliency and scalability to networks, simplifying management while increasing performance. Fast Failover

further enhances this advanced solution by providing absolutely minimal network downtime in the event of a problem.

Strong Passwords

Enforcing strong passwords for users of key networking equipment allows network administrators to increase security, and ensure a robust and reliable

infrastructure.

Key Solution - Virtual Chassis Stacking (VCStack)

VCStack - Resiliency and Stability

Today's enterprises rely on Information Technology resources and applications to access business-critical information, and for day-to-day work. A high-availability

infrastructure is now of paramount importance, starting with a resilient network core. The Allied Telesis expandable x900 series switches provide the ideal

solution - without the expense of a full chassis. With the benefits of high availability, increased capacity and ease of management, VCStack makes networking

reliable and simple.

Using Virtual Chassis Stacking (VCStack) at the core of your network allows multiple switches to appear as a single virtual chassis. In normal operation, this

virtual chassis acts as a single switch, simplifying management. The diagram below shows link aggregation between the core VCStack and the edge switches. With link

aggregation across ports on different virtual chassis members, there is no perceptible disruption in the case of a link failure, and the full bandwidth of the network is

available.

VCStack and link aggregation provide a solution where network resources are spread across the virtual chassis members, ensuring device and path resiliency.

Virtualization of the network core ensures access to information when you need it.

Allied Telesis

| Advanced Gigabit Layer 3+ Expandable Switches

8600

8000S

1 Gigabit link

10/100 link

Link aggregation

x900

8000S

EDGE

Page 3

Servers

CORE

Diagram 1: Resilient Core