HP MSR2000/3000/4000 Router Series Layer 2 - LAN Switching Command Reference
Table Of Contents
- Title Page
- Contents
- MAC address table commands
- Port isolation commands
- Spanning tree commands
- active region-configuration
- check region-configuration
- display stp
- display stp abnormal-port
- display stp bpdu-statistics
- display stp down-port
- display stp history
- display stp region-configuration
- display stp root
- display stp tc
- instance
- region-name
- reset stp
- revision-level
- stp bpdu-protection
- stp bridge-diameter
- stp compliance
- stp config-digest-snooping
- stp cost
- stp edged-port
- stp enable
- stp global config-digest-snooping
- stp global enable
- stp global mcheck
- stp loop-protection
- stp max-hops
- stp mcheck
- stp mode
- stp no-agreement-check
- stp pathcost-standard
- stp point-to-point
- stp port priority
- stp port-log
- stp priority
- stp region-configuration
- stp role-restriction
- stp root primary
- stp root secondary
- stp root-protection
- stp tc-protection
- stp tc-protection threshold
- stp tc-restriction
- stp timer forward-delay
- stp timer hello
- stp timer max-age
- stp timer-factor
- stp transmit-limit
- vlan-mapping modulo
- Loop detection commands
- VLAN commands
- LLDP commands
- display lldp local-information
- display lldp neighbor-information
- display lldp statistics
- display lldp status
- display lldp tlv-config
- lldp admin-status
- lldp check-change-interval
- lldp enable
- lldp encapsulation snap
- lldp fast-count
- lldp global enable
- lldp hold-multiplier
- lldp management-address-format string
- lldp max-credit
- lldp mode
- lldp notification med-topology-change enable
- lldp notification remote-change enable
- lldp timer fast-interval
- lldp timer notification-interval
- lldp timer reinit-delay
- lldp timer tx-interval
- lldp tlv-enable
- Support and other resources
- Index
53
Usage guidelines
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. HP recommends that you use the default value.
When the setting is configured in Layer 2 Ethernet interface view, it takes effect on only that interface.
Examples
# Set the maximum transmission rate of port Ethernet 2/1 to 5.
<Sysname> system-view
[Sysname] interface ethernet 2/1
[Sysname-Ethernet2/1] stp transmit-limit 5
vlan-mapping modulo
Use vlan-mapping modulo to map VLANs in the MST region to MSTIs according to the specified modulo
value and quickly create a VLAN-to-instance mapping table.
Syntax
vlan-mapping modulo modulo
Default
All VLANs are mapped to the CIST (MSTI 0).
Views
MST region view
Predefined user roles
network-admin
Parameters
modulo: Sets the modulo value in the range of 1 to 64.
Usage guidelines
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 is 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, then VLAN 1 is
mapped to MSTI 1, VLAN 2 to MSTI 2, …, VLAN 15 to MSTI 15, VLAN 16 to MSTI 1, and so on.
Examples
# Map VLANs to MSTIs as per modulo 8.
<Sysname> system-view
[Sysname] stp region-configuration
[Sysname-mst-region] vlan-mapping modulo 8
Related commands
• active region-configuration
• check region-configuration
• display stp region-configuration
• region-name