1: 3/4/1 (P1) <---> 4/3/1 (P0)
Link 4: u4 -- u5, num=1
1: 4/4/1 (P1) <---> 5/3/1 (P0)
Link 5: u5 -- u6, num=1
1: 5/4/1 (P1) <---> 6/3/1 (P0)
Link 6: u6 -- u7, num=1
1: 6/4/1 (P1) <---> 7/3/1 (P0)
Link 7: u7 -- u8, num=1
1: 7/4/1 (P1) <---> 8/3/1 (P0)
Link 8: u8 -- u9, num=1
1: 8/4/1 (P1) <---> 9/3/1 (P0)
Link 9: u9 -- u10, num=1
1: 9/4/1 (P1) <---> 10/3/1 (P0)
Link 10: u10 -- u11, num=1
1: 10/4/1 (P1) <---> 11/3/1 (P0)
Link 11: u11 -- u12, num=1
1: 11/4/1 (P1) <---> 12/3/1 (P0)
CPU to CPU packets are fine between 12 units.
ICX7450-24 Router#
Use cases
Adding a new unit to the stack
Adding a new unit to an already existing operational stack can be done in three ways:
• Secure setup
• Stack enable
• With reserved configuration (pre-provisioning)
Assumptions
• This process assumes that a stack is already formed and operational.
• To add a new unit to the stack, number of units in the stack should be less than 12.
Description
A new unit can be connected to one of the end units of the stack using stack ports. Following section
describes these processes.
Steps
Using the Secure Setup Method
1. A new unit can be connected to one of the end units of the stack using stack ports.
2. Once link is up, enter 'stack secure setup 'on the active unit. The CLI display comes up with a 'new'
unit discovered and prompts the user to enter the number of units desired upstream/downstream
depending on where the new unit is connected.
3. The newly added unit receives a new ID which is next available ID, and resets itself. Upon boot up it
joins with newly assigned ID. Do 'write memory.'
Using the Manual Configuration Method
1. A new unit can be connected to one of the end units using stack ports.
2. When link come up, enter 'stack enable' on the new unit at configuration level.
3. The newly added unit receives a new ID, which is next available stack ID, and resets itself. Upon
boot up it joins with newly assigned ID. Do 'write memory'.
Using the Reserved Configuration Method
1. Module configuration of the new unit should be pre-provisioned on the active unit.
2. This new unit can then be connected to one of the end units using stack ports.
3. Active controller resets the new unit and upon boot up, the new unit is part of the stack. Do 'write
memory'.
Use cases
34
Brocade ICX 7450, Brocade ICX 7750, and Brocade ICX 7250 Stacking Deployment Guide
53-1003581-03
