Stp Overview - Dell PowerConnect B-FCXs Configuration Manual

Configuring Spanning Tree Protocol (STP) Related Features
Table 46
features they support.
TABLE 46
Feature
802.1s Multiple Spanning Tree
802.1W Rapid Spanning Tree (RSTP)
802.1D Spanning Tree Support
Enhanced IronSpan support includes
Fast Port Span, Fast Uplink Span, and
Single-instance Span
PowerConnect Layer 2 devices
(switches) support up to 254 spanning
tree instances for VLANs.
PowerConnect Layer 3 devices (routers)
support up to 254 spanning tree
instances for VLANs.
PVST/PVST+ compatibility
PVRST+ compatibility
BPDU Guard
Root Guard
Error disable recovery

STP overview

The Spanning Tree Protocol (STP) eliminates Layer 2 loops in networks, by selectively blocking
some ports and allowing other ports to forward traffic, based on global (bridge) and local (port)
parameters you can configure.
STP related features, such as RSTP and PVST, extend the operation of standard STP, enabling you
to fine-tune standard STP and avoid some of its limitations.
You can enable or disable STP on a global basis (for the entire device), a port-based VLAN basis (for
the individual Layer 2 broadcast domain), or an individual port basis.
Configuration procedures are provided for the standard STP bridge and port parameters as well as
Dell features listed in
PowerConnect B-Series FCX Configuration Guide
53-1002266-01
lists the individual Dell PowerConnect switches and the Spanning Tree Protocol (STP)
Supported STP features
Table 52.
PowerConnect B-Series FCX
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
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