Reference Guide

Stacking | 207
Stacking Port Numbers
By default, each Aggregator in Standalone mode is numbered stack-unit 0. Stack-unit numbers are
assigned to member switches when the stack comes up. Figure 17-17 shows the numbers of the 40GbE
stacking ports on an Aggregator.
Figure 17-17. Stack Groups on an Aggregator
Configuring a Switch Stack
To configure and bring up a switch stack, follow these steps:
1. Connect the 40GbE ports on the base module of two Aggregators using 40G direct attach or QSFP
fibre cables.
2. Configure each Aggregator to operate in stacking mode.
3. Reload each Aggregator, one after the other in quick succession.
Stack Unit 0 / Port 33
Stack Unit 0 / Port 37