Configuring A Global Msti - Siemens RUGGEDCOM ROS v4.3 User Manual

RUGGEDCOM ROS
User Guide
2. Configure the following parameter(s) as required:
Parameter
Name
Revision Level
Digest
3. Click Apply.
Section 5.2.9.4

Configuring a Global MSTI

To configure a global Multiple Spanning Tree Instance (MSTI) for the Spanning Tree Protocol (STP), do the
following:
1. Navigate to Spanning Tree » Configure Bridge MSTI Parameters . The Bridge MSTI Parameters form
appears.
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4
Figure 103: Bridge MSTI Parameters Form
1. Instance ID Box 2. Get Button 3. Bridge Priority List 4. Apply Button 5. Reload Button
Configuring a Global MSTI
Description
Synopsis: Any 32 characters
Default: 00-0A-DC-92-00-00
The name of the MST region. All devices in the same MST region
must have the same region name configured.
Synopsis: 0 to 65535
Default: 0
The revision level for MST configuration. Typically, all devices
in the same MST region are configured with the same revision
level. However, different revision levels can be used to create sub-
regions under the same region name.
Synopsis: Any 32 characters
Default: 0
This is a read-only parameter and should be only used for network
troubleshooting. In order to ensure consistent VLAN-to-instance
mapping, it is necessary for the protocol to be able to exactly
identify the boundaries of the MST regions. For that pupose, the
characteristics of the region are included in BPDUs. There is no
need to propagate the exact VLAN-to-instance mapping in the
BPDUs because switches only need to know whether they are
in the same region as a neighbor. Therefore, only this 16-octet
digest created from the VLAN-to-instance mapping is sent in
BPDUs.
Chapter 5
Setup and Configuration
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