Reference Guide

Setting ports Te 0/0 Te 0/1 Te 0/2 Te 0/3 as stack group will make their
interface configs obsolete after
a reload.
[confirm yes/no]:yes
S4810-1#show system stack-ports
Topology: Ring
Interface Connection Link Speed Admin Link Trunk
(Gb/s) Status Status Group
------------------------------------------------------------------
0/0 1/0 10 up up
0/1 1/1 10 up up
0/2 1/2 10 up up
0/3 1/3 10 up up
S4810-1#
Add Units to an Existing S-Series Stack
You can add units to an existing stack in one of three ways.
• By manually assigning a new unconfigured unit a position in an existing stack.
• By adding a configured unit to an existing stack.
• By merging two stacks.
If you are adding units to an existing stack, you can either:
• allow FTOS to automatically assign the new unit a position in the stack, or
• manually determine each units position in the stack by configuring each unit to correspond with the stack before
connecting it.
• If you add a unit that has a stack number that conflicts with the stack, the stack assigns the first available stack
number.
• If the stack has a provision for the stack-number that will be assigned to the new unit, the provision must match
the unit type, or FTOS generates a type mismatch error.
After the new unit loads, it synchronizes its running and startup configurations with the stack.
Manually Assigning a New Unit to an Existing Stack
To manually assign a new unit a position in an existing stack, use the following steps.
NOTE: For an S50 system, install the stacking modules in the new unit while the unit is not powered.
1. On the stack, determine the next available stack-unit number, and the management priority of the management unit.
EXEC Privilege mode
show system brief or show system stack-unit
2. On the new unit, number it the next available stack-unit number.
EXEC Privilege mode
stack-unit renumber
3. (OPTIONAL) On the new unit, assign a management priority based on whether you want the new unit to be the
stack manager.
CONFIGURATION mode
stack-unit priority
4. Assign a stack group to each unit.
CONFIGURATION mode
stack-unit id stack-group id
774