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Using the Intel® NetStructure™ 470T and 470F Switches
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Using the 470 Switch
Spanning Tree Protocol and VLANs
The 470 switches support the Spanning Tree Protocol across the entire
switch, not across each VLAN. If VLANs create a redundant link between
two switches and both of those switches have the Spanning Tree Protocol
enabled, one of the VLANs is disabled.
The following diagram shows an example. Both Switch 1 and Switch 2 have
two port-based VLANs configured. Crossover cables connect the
ENG_VLAN on Switch 1 to ENG_VLAN on and Switch 2. Crossover cables
also connect the MKT_VLAN on Switch 1 to the MKT_VLAN on Switch 2.
When spanning tree is enabled on both switches, the redundant link between
the MKT_VLANs is blocked and those VLANs can no longer communicate.
The example below shows 470F switches.
GARP VLAN Registration Protocol (GVRP)
Because tag-based (IEEE 802.1Q) VLANs can span across the network, it
poses a challenge for network administrators to manage changes to the
VLAN. The GARP VLAN Registration Protocol (GVRP) provides a
dynamic mechanism for switches to share topology information and manage
changes with other switches. This saves the network administrator from
having to manually propagate VLAN configuration information across
switches.
Содержание 470F - NetStructure Switch
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