Stacking - NETGEAR GS752TXS Hardware Installation Manual

• IEEE 802.3z (1000BASE-x)
• IEEE802.aq (10GBASE-LRM)
• IEEE802.3ae (10GBASE Ethernet)
• IEEE802.3az (Energy Efficient Ethernet)
• IEEE 802.3x (Full-duplex flow control)
• Autosensing and auto-negotiating capabilities for all ports.
• Auto Uplink™ on all ports to make the right connection.
• Automatic address learning function to build the packet-forwarding information table. The
table contains up to 16K Media Access Control (MAC) addresses.
• Store-and-Forward transmission to remove bad packets from the network.
• Full-duplex IEEE 802.3x pause frame flow control.
• Active flow control to minimize packet loss and frame drops.
• Half-duplex backpressure control.
• Per port LEDs and power LED.
• Internal open frame power supply.
• Standard NETGEAR 7xx series chassis.
• NETGEAR Green product series power-saving features:
• Automatic power consumption adjustment based on the RJ-45 cable length.
• Per port automatic power down when the port link is down.

Stacking

A stack can be controlled and managed from a single unit called the master unit. Any other
unit member of the stack is named stack slave member.
In particular, firmware can be downloaded from the stack master to the other units in the
stack.
A unit serving as Stack Master runs the fully operational software of a switch. In addition, it
runs the master part of the Distributed Switching Application that configures and manages all
other units in the stack. Generally, the master operates the remote Slave's low-level drivers,
through the Distributed Switching application part that is running in the context of the Slave.
During the Stacking setup, the switches will auto-select one as the Stacking Master. All other
devices are named as slave stack members, and assigned a unique Unit ID. One of the slave
units is designated as the backup master. The backup master acts as a slave stack master,
but can become a stack master in the event of failure of the stack master. In the default
configuration, the master and backup master are assigned unit IDs of 1 and 2, respectively.
The administrator can use the Web interface to configure different ID assignments. The Stack
Master provides a Single point of control and management as well as a single interface in
which to control and manage the stack.
Switch software is downloaded separately for each stack member. However, all units in the
stack must be running the same software version.
8 | Chapter 1. Introduction
GS752TXS Smart Switch Hardware Installation Guide