Users Guide

HOL DROPS on COS3 : 0
HOL DROPS on COS4 : 0
HOL DROPS on COS5 : 0
Related
Commands
clear hardware system-flow — clears the statistics from selected hardware components.
show system — displays the current status of all the stack members or a specific member.
stack unit
Pre-provision the specified port-extender stack unit.
C9000 Series
Syntax
stack-unit unit-number {type unit-type | priority value}
To de-provision or delete a port extender stack unit, use the no stack-unit unit-number {type
unit-type | priority value} command.
Parameters
stack-unit unit-
number
Enter the stack-unit ID number to locate a specific stack unit. Stack unit number
range is 0–7.
type PE-type Enter a value for the stack-unit type. The only support value for stack-unit type is
C1048P.
priority value Enter the master priority value for the unit. The priority value range is from 1 to 14.
The unit with the numerically highest priority value is elected the master.
Default None
Command Modes PE CONFIG
Command
History
This guide is platform-specific. For command information about other platforms, see the relevant Dell
Networking OS Command-Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version Description
9.9(0.0) Introduced on the C9010.
Usage
Information
You can pre-provision a port extender stack unit using the stack unit command in the PE
configuration mode and specify the stack-unit type. Only similar types of stack units are provisioned
under a single port extender. The maximum number of stack units allowed for provisioning is 8. In a PE
stack, by default, the stack unit with the highest MAC address is elected master; the stack unit with the
second highest MAC address is elected standby. To change the default master and standby assignment,
you can assign stack-unitpriority value. If multiple units tie for the highest priority, the unit with the
highest MAC address is elected master.
In the following example, stack-unit 0 with priority 14 is the master and stack-unit 1 with priority 13 is
the standby.
NOTE: You can configure a stack-unit priority only when the unit is online.
Example (stack-
unit priority)
Dell(conf)#pe 2
Dell(conf-pe-2)#stack-unit 0 priority 14
Dell(conf-pe-2)#stack-unit 1 priority 13
1220 PE Stacking