Pvst/Pvst+ Compatibility - HP 9304m Installation And Getting Started Manual

Configuring Spanning Tree Protocol (STP)
HP9300(config-vlan-3801)# spanning-tree priority 20
HP9300(config-vlan-3801)# tag ethernet 1/20 ethernet 5/1 to 5/3
HP9300(config-vlan-3801)# exit
The next group of commands configures VLAN groups for the member VLANs. Notice that the VLAN groups do
not contain the VLAN numbers assigned to the master VLANs. Also notice that no STP parameters are
configured for the groups of member VLANs. Each group of member VLANs will inherit its STP settings from its
master VLAN.
Set the bridge priority for each master VLAN to the highest priority (1) on one of the devices in the STP per VLAN
group configuration. By setting the bridge priority to the highest priority, you make the device the default root
bridge for the spanning tree. To ensure STP load balancing, make each of the devices the default root bridge for a
different master VLAN.
HP9300(config)# vlan-group 1 vlan 2 to 200
HP9300(config-vlan-group-1)# tag ethernet 1/1 ethernet 5/1 to 5/3
HP9300(config-vlan-group-1)# vlan-group 2 vlan 202 to 400
HP9300(config-vlan-group-2)# tag ethernet 1/2 ethernet 5/1 to 5/3
HP9300(config-vlan-group-2)# vlan-group 3 vlan 402 to 600
HP9300(config-vlan-group-2)# tag ethernet 1/3 ethernet 5/1 to 5/3
...
HP9300(config-vlan-group-19)# vlan-group 20 vlan 3082 to 4000
HP9300(config-vlan-group-20)# tag ethernet 1/20 ethernet 5/1 to 5/3
HP9300(config-vlan-group-20)# exit
The following group of commands configures the STP groups. Each STP group in this configuration contains one
master VLAN, which contains a VLAN group. This example shows that an STP group also can contain additional
VLANs (VLANs not configured in a VLAN group).
HP9300(config)# stp-group 1
HP9300(config-stp-group-1)# master-vlan 1
HP9300(config-stp-group-1)# member-group 1
HP9300(config-stp-group-1)# member-vlan 4001 4004 to 4010
HP9300(config-stp-group-1)# stp-group 2
HP9300(config-stp-group-2)# master-vlan 201
HP9300(config-stp-group-2)# member-group 2
HP9300(config-stp-group-2)# member-vlan 4002 4003 4011 to 4015
HP9300(config-stp-group-2)# stp-group 3
HP9300(config-stp-group-3)# master-vlan 401
HP9300(config-stp-group-3)# member-group 3
...
HP9300(config-stp-group-19)# stp-group 20
HP9300(config-stp-group-20)# master-vlan 3081
HP9300(config-stp-group-20)# member-group 20

PVST/PVST+ Compatibility

HP devices that are configured to support a separate spanning tree in each port-based VLAN can interoperate
with Cisco devices that are running Per VLAN Spanning Tree (PVST) or PVST+, Cisco proprietary STP
implementations that support separate spanning trees in each port-based VLAN.
An HP device configured to run a separate spanning tree in each port-based VLAN automatically enables PVST/
PVST+ support on a port if that port receives an STP BPDU with PVST/PVST+ format. You also can enable
PVST/PVST+ support statically as well as display PVST/PVST+ information for each port.
The information in this section is for reference. If you are running PVST/PVST+ on the Cisco devices and the
default support for separate spanning trees in each VLAN on the HP devices, then no configuration is necessary
for the devices to share spanning tree information.
NOTE: If you plan to use the PVST/PVST+ support, do not use VLAN 1. PVST+ uses VLAN 1 as a single STP
broadcast domain and thus uses a different BPDU format than for other VLANs.
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