Free Access Huawei H12-811_V1.0 New Release

The command lease day 0 hour 10 sets the lease time for DHCP-assigned IP addresses to 10 hours. This setting provides a short, specific lease duration for dynamically assigned IP addresses, which can be useful in networks where devices frequently join and leave, minimizing IP address retention time​.

In RSTP, an edge port is intended to connect directly to end devices, not other switches. However, if the edge port receives a BPDU, it will lose its edge status and revert to a standard STP port. This feature prevents loops by reconfiguring the port based on network conditions​.

TCP (Transmission Control Protocol) uses a three-way handshake process to establish a reliable connection between two devices, ensuring that data transmission is stable and reliable. The handshake sequence (SYN, SYN-ACK, ACK) confirms that both devices are ready to send and receive data, guaranteeing ordered and error-checked delivery. This characteristic makes TCP a reliable transport protocol​.

The Bridge ID, a combination of bridge priority and MAC address, is used to determine the root bridge in STP. The switch with the lowest Bridge ID becomes the root bridge. If bridge priorities are identical, the switch with the lowest MAC address is selected as the root bridge​.