Chapter 13 Spanning Tree Protocol
MGS3520 Series User’s Guide
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Figure 66
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 67
MSTP Network Example
13.1.5.2 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
A
B
VLAN 1
VLAN 2
A
B
VLAN 1
VLAN 2
Содержание MGS3520 Series
Страница 18: ...18 PART I User s Guide ...
Страница 71: ...71 PART II Technical Reference ...
Страница 118: ...Chapter 9 VLAN MGS3520 Series User s Guide 118 Figure 58 Advanced Application VLAN Port Based VLAN Setup Port Isolation ...
Страница 189: ...Chapter 22 Policy Rule MGS3520 Series User s Guide 189 Figure 107 Policy Example EXAMPLE ...
Страница 408: ...Appendix B Common Services MGS3520 Series User s Guide 408 ...
Страница 420: ...Appendix D Legal Information MGS3520 Series User s Guide 420 Environmental Product Declaration ...