Reference Guide

Stacking | 897

Stacking

Stacking is supported on the following platforms: S-Series (S50/S25) s,

Stacking is supported on the S4810 platform with FTOS version 8.3.7.1, version 8.3.10.2 and newer.

Using the FTOS stacking feature, multiple S-Series switch units can be interconnected with dedicated

stacking ports or front end user ports. (The S50, S55, and S60 use dedicated stacking ports; the S4810 uses

front end user ports for stacking.) The stack becomes manageable as a single switch through the stack

management unit.

This chapter contains the following sections:

• S-Series Stacking Overview

• Stack Management Roles

• Stack Master Election

• Stack Group/Port Numbers

• High Availability on S-Series Stacks

• Important Points to Remember - S4810 Stacking

• S-Series Stacking Configuration Tasks

• Troubleshoot an S-Series Stack

• Removing Units or Front End Ports from a Stack

S-Series Stacking Overview

An S-Series stack is analogous to an E-Series or C-Series system with redundant RPMs and multiple line

cards. FTOS elects a management (master) unit, a standby unit, and all other units are member units.

FTOS presents all of the units like line cards; for example, to access GigabitEthernet Port 1 on Stack Unit

0, enter

interface gigabitethernet 0/1 from CONFIGURATION mode.

Note: The S4810 commands accept Unit ID numbers 0-11, though the S4810 supports stacking up to 3

units only with FTOS version 8.3.7.1 and version 8.3.10.2. The S4810 supports stacking up to 6 units on

FTOS version 8.3.12.0.