Mstp Regions - Avaya 2330 Manual

MSTP regions

All devices are said to be in the same region if the following three elements are the same on
all the devices:
• region name (32 bytes)
• revision number (2 bytes)
• configuration digest (the numerical value derived from VLAN to instance mapping)
The following figure shows a single MSTP region.
Figure 7: Single MSTP region
Within a region, there can be multiple spanning trees running for an instance.
All the bridges within a region appear as a single bridge to other regions. Bridges that are
outside the region always have a single point of contact to the region.
The following figure shows the relationship amongst multiple MSTP regions.
Configuration — Layer 2 Ethernet
Spanning Tree Protocol
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