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Extreme Networks Technical Brief: SummitStack, Extreme Networks Virtual Chassis Stacking Technology

SummitStack,

Extreme Networks

Virtual Chassis

Stacking Technology

Overview

Extreme Networks® oers a high-performance

SummitStack™ solution that allows up to eight Summit

switches to join a “virtual chassis.” There are exclusive

cable-based forms of SummitStack as well as standard

Ethernet-based versions of the technology. All forms of

SummitStack allow multiple switches to be managed

via a single IP address, which reduces complexity

and makes management easier. As a true stacking

technology, SummitStack allows switches in the stack

to behave as a single virtual chassis with a distributed

forwarding dataplane, rather than a set of individual

switches managed through a single IP address.

Extreme Networks SummitStack stacking technology

enables the physical connection of up to eight

individual Summit® switches together as a single

logical unit. This logical unit reduces the management

overhead of ﬁxed conﬁguration switches by behaving

as a single switch with a single IP address and a

single point of authentication. In ExtremeXOS®,

Extreme Networks edge-to-core modular operating

system, a stack is controlled by a master switch,

called the master. The master switch is responsible

for maintaining all of the software tables for all the

switches in the stack. There can only be one master

switch in a stack of switches. All switches in the stack,

including the master switch, are called nodes.

SummitStack Basics

• Stack up to 8 Switches

• 20-256Gbps Link

• Virtual Chassis Architecture

• High availability/Sub 50msec failover

A stack of Summit switches can be thought of as a

Virtual Chassis. Each node acts as if it was occupying

a slot in a chassis and is controlled by the master. The

high-speed stacking links function like the backplane

links of a chassis. Stacking oers customers a ﬂexible

way to increase switch density and capacity, provides

port conﬁguration choices, and controls upfront

capital requirements. SummitStack permits mixing and

matching Summit switches in a multi-platform stack

to provide ﬂexible connection options, from Ethernet,

Fast Ethernet, Gigabit Ethernet to 10 Gigabit Ethernet,

in copper, Power over Ethernet (PoE), Power over

Ethernet Plus (PoE-plus) and ﬁber optic interfaces.

SummitStack Advantages

• Centralized Management

• Low Connectivity Cost

• Growth for Future

• Mix and Match (Cross-platform)

• Distributed Forwarding

The master switch stores any conﬁguration information

for the stack in its primary and secondary ﬂash

memory. Since the master switch has the knowledge of

the state and the conﬁguration of all the other switches

in the stack, it can respond to all external requests for

those switches. For example, the master switch can

respond to a request for SNMP information from all

ports within the stack.

1 2 3 4 5 6 7

Indice de contenidos

Pagina 1 - Stacking Technology

Pagina 2 - SummitStack Varieties

Pagina 3

Pagina 4 - True Stacking

Pagina 5 - Ring Topology

Pagina 6 - Conﬁguring a New Stack

Pagina 7 - Summary and Conclusion

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Busca en linea o descarga Manual de usuario para Redes Extreme Networks Virtual Chassis. SummitStack, Extreme Networks Virtual Chassis Stacking Technology [en] Manual de usuario

Indice de contenidos

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Busca en linea o descarga Manual de usuario para Redes Extreme Networks Virtual Chassis. SummitStack, Extreme Networks Virtual Chassis Stacking Technology [en] Manual de usuario

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