A port in a redundant topology is currently in the blocking state and not receiving Bridge Protocol Data Units (BPDUs). To keep this port from transitioning to a forwarding state, which command should be configured?
A. Switch(config)#spanning-tree loopguard default
B. Switch(config-if)#spanning-tree bdpufilter
C. Switch(config)#udld aggressive
D. Switch(config-if)#spanning-tree bpduguard
Related Resources
Cisco White Papers
Related Course
CCNP Routing and Switching e-Camp
CCNP R&S Question of the Week Series
- CCNP R&S Question of the Week: IPv6
- CCNP R&S Question of the Week: BGP Attribute
- CCNP R&S Question of the Week: Gateway of Last Resort
- CCNP R&S Question of the Week: Routing Protocols into OSPF
- CCNP R&S Question of the Week: BPDU Guard
- CCNP R&S Question of the Week: Private VLANs
- CCNP R&S Question of the Week: Blocking to Forwarding State
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