RicherLink

RicherLink Switch 1. The working level is different: the Layer 2 switch works at the data link layer, and the Layer 3 switch works at the network layer. The Layer 3 switch not only realizes high-speed forwarding of data packets, but also achieves optimal network performance according to different network conditions. 2. The principle is different: the principle of the Layer 2 switch is that when the switch receives a packet from a port, it will first read the source MAC address in the packet, then read the destination MAC address in the packet, and in the address table. Find the corresponding port. If there is a port corresponding to the destination MAC address in the table, copy the packet directly to this port. The principle of a three-layer switch is relatively simple. It is a route exchange multiple times. In general, it is the first source-to-destination route. The Layer 3 switch will transfer this data to the second layer, so next time it is the destination to the source.

On the afternoon of January 7th, Beijing time, according to the Indian Economic Times, Indian Telecom Minister Manoj Sinha said that there is no proposal to prohibit the purchase of telecommunications equipment produced by Huawei. Previously, the United States, Australia, New Zealand and other places were "blocking" Huawei's network equipment. telecommunications equipment "There is no proposal at present before the government considers whether to ban the procurement of telecommunications equipment produced by Huawei." Singh replied. He also said that as long as mobile companies comply with security requirements, they can purchase equipment from any equipment manufacturer based on their own business interests. There were reports on December 21 last year that it is unlikely that India will ban Huawei equipment. People familiar with the matter said that Huawei will not be eliminated separately because of security issues, especially considering that India&#