Administrator 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.
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
9.11(0.0) Introduced the port extender types for the N20xx and N30xx series.
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
Example (stack
unit type)
Dell(conf-pe-201)#stack-unit 1 type ?
C1048P 52-port GE/TE
N2024-PE 28-port GE/TE
N2024P-PE 28-port GE/TE
PE Stacking 1191