Configure Stpd Default-Encapsulation - Extreme Networks ExtremeWare XOS Command Reference Manual

Version 11.0

Hide thumbs Also See for ExtremeWare XOS:

Table of Contents

configure stpd default-encapsulation

configure stpd <stpd_name> default-encapsulation [dot1d | emistp |

Configures the default encapsulation mode for all ports added to the specified STPD.

Syntax Description

All ports are in

Usage Guidelines

If your STPD has the same name as another component, for example a VLAN, Extreme Networks

recommends that you specify the identifying keyword as well as the name. If your STPD has a name

unique only to that STPD, the keyword

Care must be taken to ensure that ports in overlapping domains do not interfere with the orderly

working of each domain's protocol.

You can specify the following STP encapsulation modes:

—This mode is reserved for backward compatibility with previous STP versions. BPDUs are

sent untagged in 802.1D mode. Because of this, any given physical interface can have only one STPD

running in 802.1D mode.

—This mode sends BPDUs with an 802.1Q tag having an StpdID in the VLANid field.

version of STP. The STPDs running in this mode have a one-to-one relationship with VLANs and

send and process packets in PVST+ format.

An StpdID is used to identify each STP domain. You assign the StpdID when configuring the domain.

An StpdID must be identical to the VLANid of the carrier VLAN in that STP domain, and that VLAN

cannot belong to another STPD.

These encapsulation modes are for STP ports, not for physical ports. When a physical port belongs to

multiple STPDs, it is associated with multiple STP ports. It is possible for the physical port to run in

different modes for different domains for which it belongs.

ExtremeWare XOS 11.0 Command Reference Guide

Specifies an STPD name on the switch.

Specifies the STP encapsulation mode of operation to be 802.1d.

Specifies the STP encapsulation mode of operation to be EMISTP.

Specifies the STP encapsulation mode of operation to be PVST+.

mode, except those in STPD s0, whose default setting is

—This mode implements PVST+ in compatibility with third-party switches running this

is optional.

configure stpd default-encapsulation

Extremeware xos 11.0