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Chapter 13 Spanning Tree Protocol
ES-2024 Series User’s Guide
110
Figure 54
STP/RSTP Network Example
With MSTP, VLANs 1 and 2 are mapped to different spanning trees in the network. Thus
traffic from the two VLANs travel on different paths. The following figure shows the network
example using MSTP.
Figure 55
MSTP Network Example
13.1.4.2 MST Region
An MST region is a logical grouping of multiple network devices that appears as a single
device to the rest of the network. Each MSTP-enabled device can only belong to one MST
region. When BPDUs enter an MST region, external path cost (of paths outside this region) is
increased by one. Internal path cost (of paths within this region) is increased by one when
BPDUs traverse the region.
Devices that belong to the same MST region are configured to have the same MSTP
configuration identification settings. These include the following parameters:
• Name of the MST region
• Revision level as the unique number for the MST region
• VLAN-to-MST Instance mapping
Summary of Contents for ES-2024 Series
Page 2: ......
Page 8: ...Safety Warnings ES 2024 Series User s Guide 8...
Page 20: ...Table of Contents ES 2024 Series User s Guide 20...
Page 28: ...List of Tables ES 2024 Series User s Guide 28...
Page 30: ...30...
Page 38: ...Chapter 2 Hardware Installation and Connection ES 2024 Series User s Guide 38...
Page 44: ...Chapter 3 Hardware Overview ES 2024 Series User s Guide 44...
Page 46: ...46...
Page 56: ...Chapter 4 The Web Configurator ES 2024 Series User s Guide 56...
Page 66: ...Chapter 6 Tutorials ES 2024 Series User s Guide 66...
Page 86: ...86...
Page 98: ...Chapter 9 VLAN ES 2024 Series User s Guide 98...
Page 104: ...Chapter 11 Static Multicast Forwarding ES 2024 Series User s Guide 104...
Page 136: ...Chapter 18 Port Authentication ES 2024 Series User s Guide 136...
Page 170: ...Chapter 22 AAA ES 2024 Series User s Guide 170...
Page 185: ...185 PART IV IP Application Static Route 187 Differentiated Services 191 DHCP 195...
Page 186: ...186...
Page 190: ...Chapter 25 Static Route ES 2024 Series User s Guide 190...
Page 202: ...202...
Page 226: ...Chapter 29 Access Control ES 2024 Series User s Guide 226...
Page 228: ...Chapter 30 Diagnostic ES 2024 Series User s Guide 228...
Page 232: ...Chapter 31 Syslog ES 2024 Series User s Guide 232...
Page 242: ...Chapter 33 MAC Table ES 2024 Series User s Guide 242...
Page 248: ...248...
Page 256: ...Appendix A Product Specifications ES 2024 Series User s Guide 256...
Page 268: ...Appendix C Legal Information ES 2024 Series User s Guide 268...