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SMC Networks SMC TigerStack II SMC6624M User Manual

Page 278

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9-108

Configuring Advanced Features
Spanning Tree Protocol (STP)

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Figure 9-72. Example of Using a Trunked Link with STP and VLANs

For more information, refer to “Spanning Tree Protocol Operation with
VLANs” on page 9-71.

Problem:

STP enabled with 2
separate (non-trunked)
links blocks a VLAN link.

Solution:

STP enabled with
one trunked link.

Nodes 1 and 2 cannot
communicate because
STP is blocking the link.

Nodes 1 and 2 can communicate
because STP sees the trunk as a
single link and 802.1Q (tagged) VLANs
enable the use of one (trunked) link
for both VLANs.

See also other documents in the category SMC Networks Computer Accessories: