Stacking Multiple Switches; Creating A Switch Stack - Dell N1500 Serie Guía De Introducción

Stacking Multiple Switches

It is possible to stack upto four N1500 Series switches using the SFP+ ports.
NOTE:
N1500 Series switches support stacking only with other N15xx series
switches. Do not stack N1500 Series switches with N2000, N3000, or N4000 series
switches.
When multiple switches are connected using the stack ports, they operate as
a single unit with up to 192 RJ-45 front panel ports. The stack operates and is
managed as a single entity.
NOTE:
If installing a stack of switches, assemble and cable the stack before
powering up and configuring it. When a stack is powered up for the first time,
the switches elect a Master Switch, which may occupy any location in the stack.
The Master LED on the front panel is illuminated on the master unit.

Creating a Switch Stack

Create a stack by configuring pairs of SFP+ ports as stacking. This step must
be completed on each switch to be stacked prior to connecting adjacent units
using the SFP+ stacking ports on the front panel of the switch.
NOTE:
Stack ports must be configured in pairs. Either Te1/0/1 may be configured
with Te1/0/2, or Te1/0/3 may be configured with Te1/0/4. No other combinations
are permitted.
Figure 1-7 on page 20 shows the switches connected in a ring topology,
which is the recommended topology for a stack.
1 Connect an SR, LR, or CR transceiver and cable into either of the
SFP+ stacking ports of the top switch and to the switch directly below it.
2 Repeat this process until all of the devices are connected.
3 Use additional transceivers and a cable to connect the two remaining
SFP+ stacking ports together so that a ring topology is assembled.
4 Power on one switch and allow it to fully boot (1-2 minutes) before
proceeding further. Then power on each of the connected switches in
sequence, beginning with the switch directly connected to the most
recently powered on switch, and allow each switch to fully come up before
powering on the next switch. As each switch is powered up, the stack
master may download new code to the newly powered-on switch and
reload it. Wait until this process completes before powering on the
adjacent switch.
Getting Started Guide
19