Vlan-Mapping Modulo - HP 3100 v2 Series Command Reference Manual

By default, the maximum transmission rate of all ports is 10. Each port can send up to 10 BPDUs
within each hello time.
Configured in Ethernet interface view, the setting takes effect only on the interface.
Configured in port group view, the setting takes effect on all member ports in the port group.
Configured in Layer 2 aggregate interface view, the setting takes effect only on the aggregate
interface.
Configured on a member port in an aggregation group, the setting takes effect only after the port
leaves the aggregation group.
A larger maximum transmission rate value requires more system resources. An appropriate
maximum transmission rate setting can prevent spanning tree protocols from using excessive
bandwidth resources during network topology changes. Hewlett Packard Enterprise recommends
that you use the default value.
Examples
# Set the maximum transmission rate of port Ethernet 1/0/1 to 5.
<Sysname> system-view
[Sysname] interface ethernet 1/0/1
[Sysname-Ethernet1/0/1] stp transmit-limit 5

vlan-mapping modulo

Syntax
vlan-mapping modulo modulo
View
MST region view
Default level
2: System level
Parameters
modulo: Sets the modulo value, in the range of 1 to 16.
Description
Use vlan-mapping modulo to map VLANs in the MST region to MSTIs according to the specified
modulo value, quickly creating a VLAN-to-instance mapping table.
By default, all VLANs are mapped to the CIST (MSTI 0).
You cannot map a VLAN to different MSTIs. If you map a VLAN that has been mapped to an MSTI to
a new MSTI, the old mapping will be automatically removed.
This command maps each VLAN to the MSTI whose ID is (VLAN ID - 1) %modulo + 1, where (VLAN
ID - 1) %modulo is the modulo operation for (VLAN ID - 1). If the modulo value is 15, for example,
then VLAN 1 will be mapped to MSTI 1, VLAN 2 to MSTI 2, VLAN 15 to MSTI 15, VLAN 16 to MSTI
1, and so on.
Related commands: region-name, revision-level, display stp region-configuration, check
region-configuration, and active region-configuration.
Examples
# Map VLANs to MSTIs as per modulo 8.
<Sysname> system-view
[Sysname] stp region-configuration
[Sysname-mst-region] vlan-mapping modulo 8
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