Brocade Network Advisor IP User Manual v12.1.0 - Manual (Page 931)

Brocade Network Advisor IP User Manual 877
53-1002947-01
Spanning Tree Protocol configuration
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• RSTP — Rapid Spanning Tree Protocol (IEEE 802.1w Internet standard) is a refinement of STP,
which provides for faster spanning tree convergence after a topology change.
• MSTP — Multiple Spanning Tree Protocol (IEEE 802.1s Internet standard) allows several VLANs
to be mapped to a reduced number of spanning tree instances. This is possible because most
networks do not need more than a few logical topologies. Each instance handles multiple
VLANs that have the same Layer 2 topology.
DCB, Network OS (v3.0.0 onwards), and IronWare products in standalone mode support viewing of
STP, Rapid STP (RSTP), and Multiple STP (MSTP). Network OS products in standalone mode also
support Per-VLAN Spanning Tree (PVST) and Rapid PVST (RPVST). From Network OS (v4.0.0
onwards), configurations of Spanning Tree Protocol on PVLAN can be viewed in STP configuration
dialog box.
Configuring STP or RSTP on a port VLAN
You can configure Spanning Tree Protocol (STP) and Rapid Spanning Tree Protocol (RSTP) attributes
from the VLAN View tab or the Product View tab on the VLAN Manager dialog box.
NOTE
The VLAN View tab displays VLAN membership information for the IronWare OS 6910 switch;
however, STP configuration is not supported on the IronWare OS 6910 switch.
1. Perform one of the following tasks to select the VLAN on which STP or RSTP will be configured:
• On the VLAN View tab, expand the list of VLANs and select one or multiple VLANs on which
STP or RSTP will be configured.
• On the Product View tab, expand the product, product group, or IP subnet folder that
contains the products on which the VLAN you want is configured. Then expand the entry to
display its VLAN and select the VLAN where STP or RSTP will be configured. You can select
more than one VLAN from this tab.
For either view, you can use the Search tool to look for the VLAN on which STP or RSTP will be
configured.
NOTE
The parameters display differently depending on whether the STP configuration is at the
product, VLAN, or port level.
Either of these methods enables the STP button on the VLAN Manager dialog box.
2. Click the STP button on the VLAN Manager dialog box to display the STP Configuration dialog
box ( Figure 317 ).
The products on which the VLAN is configured appear on the dialog box.