Netgear GS728TP User Manual download pdf (Page 70)

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101

Configuring System Information

ProSafe M5300 Switch

Stack Master Election

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

remaining stack members participate in electing a new stack master from among themselves.

The following factors determine which switch is elected the stack master:

• The switch that is master always has priority to retain the role of master

• Assigned priority

• MAC address

When the stack is powered up and completes the boot process or the original stack master

becomes unavailable, the stack master is determined through an election process.

The rules for stack master Election are as follows:

• If a unit had previously been elected stack master, then it will remain the stack master and

other units will simply be stack members.

• If no units were stack masters, or more than one unit was a stack master, then the unit

with the highest management preference is elected stack master. The management

preference can be assigned by the administrator. However, if all units have the same

management preference, then the unit with the highest MAC address is assigned as the

stack master.

Factory Defaults Reset Behavior

If the stack master is reset to the factory default settings (see Factory Default on page 281),

the stack master applies the default settings to all the stack members and resets the stack,

including all participating stack members. When the stack boots, the stack master election

process begins.

A switch can be described in terms of three semi-independent functions called the forwarding

plane, the control plane, and the management plane. The forwarding plane forwards data

packets. The forwarding plane is implemented in hardware. The control plane is the set of

protocols that determine how the forwarding plane should forward packets, deciding which

data packets are allowed to be forwarded and where they should go. Application software on

the management unit acts as the control plane. The management plane is application

software running on the management unit that provides interfaces allowing a network

administrator to configure and monitor the device.

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