Chapter 13 Spanning Tree Protocol

Table 35 Advanced Application > Spanning Tree Protocol > Status: MSTP

LABEL

DESCRIPTION

Internal Cost

This is the path cost from the root port in this MST instance to the

 

regional root switch.

 

 

Port ID

This is the priority and number of the port on the Switch through which

 

this Switch must communicate with the root of the MST instance.

 

 

13.10 Technical Reference

This section provides technical background information on the topics discussed in this chapter.

13.10.1 MSTP Network Example

The following figure shows a network example where two VLANs are configured on the two switches. If the switches are using STP or RSTP, the link for VLAN 2 will be blocked as STP and RSTP allow only one link in the network and block the redundant link.

Figure 75 STP/RSTP Network Example

A

VLAN 1

 

VLAN 2

 

 

 

B

 

141

GS2200-24 User’s Guide