3Com S7906E - Switch, Configuration Manual

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1-16
Task Remarks
Enabling the MSTP Feature Required
Configuring an MST Region Required
Configuring the Work Mode of an MSTP Device Optional
Configuring the Timeout Factor Optional
Configuring the Maximum Port Rate Optional
Configuring Ports as Edge Ports Optional
Configuring Path Costs of Ports Optional
Configuring Port Priority Optional
Configuring the Link Type of Ports Optional
Configuring the Mode a Port Uses to Recognize/Send
MSTP Packets
Optional
Enabling the Output of Port State Transition Information Optional
Configuring the
leaf nodes
Enabling the MSTP Feature Required
Performing mCheck Optional
Configuring Digest Snooping Optional
Configuring No Agreement Check Optional
Configuring Protection Functions Optional
z
If GVRP and MSTP are both enabled on a device at the same time, GVRP packets will be
forwarded along the CIST. Therefore, if you wish to advertise a certain VLAN within the network
through GVRP in this case, make sure that this VLAN is mapped to the CIST (MSTI 0) when you
configure the VLAN-to-instance mapping table. For the detailed information of GVRP, refer to
GVRP Configuration
of the
Access Volume
.
z
MSTP is mutually exclusive with any of the following functions on a port: service loopback, RRPP,
Smart Link, and BPDU tunnel.
z
Configurations made in system view take effect globally; configurations made in Ethernet interface
view take effect on the current interface only; configurations made in port group view take effect on
all member ports in the port group; configurations made in Layer 2 aggregate interface view take
effect only on the aggregate interface; configurations made on an aggregation member port can
take effect only after the port is removed from the aggregation group.
z
After you enable MSTP on a Layer 2 aggregate interface, the system performs MSTP calculation
on the Layer 2 aggregate interface but not on the aggregation member ports. The MSTP enable
state and forwarding state of each selected port in an aggregation group is consistent with those of
the corresponding Layer 2 aggregate interface.
z
Though the member ports of an aggregation group do not participate in MSTP calculation, the ports
still reserve its MSTP configurations for participating MSTP calculation after leaving the
aggregation group.