Intel AXXSW1GB, User Manual

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96 Intel® Gigabit Ethernet Switch AXXSW1GB User Guide
Defining Multiple STP
Multiple Spanning Tree (MSTP) provides differing load balancing scenarios. For
example, while port A is blocked in one STP instance, the same port can be placed in the
Forwarding state in another STP instance. The Multiple STP Properties Page contains
information for defining global MSTP settings, including region names, MSTP revisions,
and maximum hops.
To define MSTP:
1. Click Layer 2 > Multiple STP > Properties . The Multiple STP Properties Page
opens:
Figure 70. Multiple STP Properties Page
The Multiple STP Properties Page contains the following fields:
•
Region Name — User-defined STP region name.
•
Revision — An unsigned 16-bit number that identifies the revision of the current
MSTP configuration. The revision number is required as part of the MSTP
configuration. The possible field range is 0-65535.
•
Max Hops — Specifies the total number of hops that occur in a specific region before
the BPDU is discarded. Once the BPDU is discarded, the port information is aged out.
The possible field range is 1-40. The field default is 20 hops.
•
IST Master — Identifies the Spanning Tree Master instance. The IST Master is the
specified instance root. The IST Master identifies the Bridge priority and the MAC
address.
2. Define the relevant fields.
3. Click . The Multiple STP properties are defined, and the device is
updated.