Netgear Switch M4100 Instrukcja Użytkownika Pobierz pdf (Strona 350)

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350 | Chapter 19. Switch Stacks

ProSafe M4100 and M7100 Managed Switches

The Stack Master and Stack Members

A switch stack is a set of up to 8 switches connected through their stacking ports. The switch

that controls the operation of the stack is the stack master. The stack master and the other

switches in the stack are stack members. Stack members use stacking technology to behave

and work together as a unified system. Layer 2 and Layer 3 protocols present the entire

switch stack as a single entity to the network.The following figure shows an example of

switches that are interconnected to form a stack.

Connecting AX742 modules

with stacking cable

Figure 37. Stacked switches

Stack Master

The stack master is the single point of stack-wide management. From the stack master, you

configure:

• System-level (global) features that apply to all stack members.

• Interface-level features for all interfaces on any stack member

A switch stack is identified in the network by its network IP address. The network IP address

is assigned according to the MAC address of the stack master

. Every stack member is

uniquely identified by its own stack member number.

The stack master contains the saved and running configuration files for the switch stack. The

configuration files include the system-level settings for the switch stack and the

interface-level settings for all stack members. Each stack member retains a copy of the

saved file for backup purposes. If the master is removed from the stack, another member is

elected master

, and then runs from that saved configuration.

All stack members are eligible stack masters. If the stack master becomes unavailable, the

remaining stack members participate in electing a new stack master

. A set of factors

determine which switch is elected the stack master. The stack master is elected or re-elected

based on one of these factors and in the order listed:

1 2 ... 345 346 347 348 349 350 351 352 353 354 355 ... 558 559

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