spanning- tree protocol (STP) is a layer 2 protocol in the OSI model. It is automatically configured in a switch to prevent continual looping of BPDUs, to avoid traffic congestion. The fastport bpduguard is only applicable in non-trunking access in a switch. It is more secure to configure the fastport mode in switch port connected directly to a node, because there are still bpdus transfer in a switch to switch connection.
BPDUs Guard ensures that inferior bpdus are blocked, allowing STP to shut an access port in this regard.
The time attack would be a security vulnerability that enables attackers that identify computer systems or network security issues by analyzing the period of the program's reaction to multiple levels.
It is used in both RSA encryption and decryption of the modular exponentiation method but could be modified for just about any system not seem running in a fixed period.
