HP A5120 EI Series Configuration Manual page 75

Task
Configuring the leaf
nodes
Performing mCheck
Configuring Digest Snooping
Configuring No Agreement Check
Configuring protection functions
NOTE:

If GVRP and MSTP are enabled on a device at the same time, GVRP packets are forwarded along the CIST. To
advertise a certain VLAN within the network through GVRP, be sure that this VLAN is mapped to the CIST (MSTI
0) when you configure the VLAN-to-instance mapping table. For more information about GVRP, see the chapter
―GVRP configuration.‖

MSTP is mutually exclusive with any of the following functions on a port: RRPP, Smart Link, and BPDU tunneling.

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.

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.

Though the member ports of an aggregation group do not participate in MSTP calculation, the ports still reserve
their MSTP configurations for participating in MSTP calculation after leaving the aggregation group.
Enabling the output of port state transition information
Enabling the MSTP feature
Configuring an MST region
Configuring the work mode of an MSTP device
Configuring the timeout factor
Configuring the maximum port rate
Configuring ports as edge ports
Configuring path costs of ports
Configuring port priority
Configuring the link type of ports
Configuring the mode a port uses to recognize/send MSTP
packets
Enabling the output of port state transition information
Enabling the MSTP feature
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