User manual

APS User Manual
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STP mode may be useful for supporting applications and protocols whose frames may arrive out of
sequence or duplicated, for example NetBeui.
RSTP
Rapid Spanning Tree Protocol (RSTP) also creates a single spanning tree over a network. Compared
with STP, RSTP provides for more rapid convergence to an active spanning tree topology. RSTP is
defined in IEEE standard 802.1D-2004.
MSTP
The Multiple Spanning Tree Protocol (MSTP) addresses the limitations in the previous spanning tree
protocols, STP and RSTP, within networks that use multiple VLANs with topologies that employ
alternative physical links. It supports multiple spanning tree instances on any given link within a
network, and supports large networks by grouping bridges into regions that appear as a single bridge
to other devices.
MSTP is defined in IEEE standard 802.1Q-2005. The protocol builds on, and remains compatible with,
the previous IEEE standards defining STP and RSTP.