Specifications

Redundant Links
Rev. 9.41 Module 5 – 145
VLAN configuration on an STP or RSTP network
How can you prevent VLANs from becoming isolated on an STP or RSTP network?
You must first determine which VLAN traffic must be transmitted across the active links
on each switch and then check the VLAN memberships on the related ports. Keep in
mind that if an active link fails, a blocked link must be able to transmit and receive
the same VLAN traffic.
For example, on Switch B in the network below, every link should carry traffic for
every VLAN to ensure that traffic is not isolated.
For HP Internal Use Only