168 CHAPTER 14: MSTP CONFIGURATION
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In a network containing switches with both GVRP and MSTP enabled, GVRP
packets are forwarded along the CIST. In this case, if you want to broadcast
packets of a specific VLAN through GVRP, be sure to map the VLAN to the CIST
when configuring the MSTP VLAN mapping table (the CIST of a network is
spanning tree instance 0).
Configuration
Prerequisites
The role (root, branch, or leaf) of each switch in each spanning tree instance is
determined.
Configuring the MST
Region
Refer to “Configuring an MST Region” on page 155.
Configuring the Mode a
Port Recognizes and
Sends MSTP Packets
Refer to “Configuring the Mode a Port Recognizes and Sends MSTP Packets” on
page 158.
Configuring the Timeout
Time Factor
Refer to “Configuring the Timeout Time Factor” on page 162.
Configuring the
Maximum Transmitting
Speed on the Current
Port
Refer to “Configuring the Maximum Transmitting Speed on the Current Port” on
page 163.
Configuring a Port as an
Edge Port
Refer to “Configuring the Current Port as an Edge Port” on page 164.
Configuring the Path
Cost for a Port
The path cost parameter reflects the rate of the link connected to the port. For a
port on an MSTP-enabled switch, the path cost may be different in different
spanning tree instances. You can enable flows of different VLANs to travel along
different physical links by configuring appropriate path costs on ports, so that
VLAN-based load balancing can be implemented.
Path cost of a port can be determined by the switch or through manual
configuration.
Configure the current port as
an edge port
Optional “Configuring the Current Port
as an Edge Port”
Configure the path cost for a
port
Optional “Configuring the Path Cost
for a Port”
Configure the port priority Optional “Configuring Port Priority”
Specify whether the link
connected to a port is
point-to-point link
Optional “Specifying Whether the Link
Connected to a Port Is
Point-to-point Link”
Table 121 Configure leaf nodes
Operation Description Related section
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