HP ProCurve 6108, Management And Configuration Manual

Page: 369 / 547

HP ProCurve Stack Management
Operation
Operating Rules for Stacking
General Rules
■ Stacking is an optional feature (enabled in the default configuration)
and can easily be disabled. Stacking has no effect on the normal
operation of the switch in your network.
■
A stack requires one Commander switch. (Only one Commander
allowed per stack.)
■
All switches in a particular stack must be in the same IP subnet
(broadcast domain). A stack cannot cross a router.
■ A stack accepts up to 16 switches (numbered 0-15), including the
Commander (always numbered 0).
■ There is no limit on the number of stacks in the same IP subnet
(broadcast domain), however a switch can belong to only one stack.
■
If multiple VLANs are configured, stacking uses only the primary
VLAN on any switch. In the factory-default configuration, the
DEFAULT_VLAN is the primary VLAN. (See “Stacking Operation with
Multiple VLANs Configured” on page 15-44 and “The Primary VLAN”
on page 12-6.)
■
Stacking allows intermediate devices that do not support stacking.
This enables you to include switches that are distant from the
Commander.
Commander Switch Switch with Stacking
Disabled or Not Available
Member Switch
Candidate Switch
Figure 15-3. Example of a Non-Stacking Device Used in a Stacking Environment
15-7