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The major provider of networking equipment. This is a generic tag to be used when no more specific tags are available. See the list of tags in Help Center Tag page.
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Uplinkports between two Cisco stacks gets blocked by RSTP
Spanning-Tree (RSTP) has disabled the "new" port, but detected it as "Backup" and made it discard all packets and don't enables it when the main uplinks fails.
STP should enable it when primary f …