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How Does Ethernet Work? Ethernet operates through a series of steps that facilitate data transmission between devices on a local area network (LAN). Here’s a detailed explanation of how Ethernet works: Data creation and packaging.When a device (like a computer or printer) wants to send data,...
The Ethernet protocol specifies a set of rules for constructing frames. There are explicit minimum and maximum lengths for frames, and a set of required pieces of information that must appear in the frame. Each frame must include, for example, both a destination address and a source address, ...
The MAC sub-layer supports two types of frame: IEEE 802.3 frames and Ethernet_II frames. In an Ethernet_II frame, the Type field identifies the upper layer protocol. Therefore, only the MAC sub-layer is required on a device, and the LLC sub-layer does not need to be realized. In an...
At initial startup, Ethernet bridges work somewhat like Ethernet repeaters, passing all traffic between segments. By observing the source addresses of incoming frames, the bridge then builds an address table associating addresses to segments. Once an address is learned, the bridge forwards network ...
The VLAN tags define the matching criteria to be used in order to map the frames on an interface to the appropriate service instance. As a result, the VLAN rewrite value must be unique within the flexible cross-connect (FXC) instance to create the lookup table. The VLAN t...
Flow control can be enabled bidirectionally or unidirectionally on an interface as required. If flow control is enabled in the inbound direction, the interface stops sending data packets when it receives pause frames. Conversely, if flow control is enabled in the outbound direction, the interface ...
How Ethernet Switches Work: Terms And Functionality Ethernet switching involves many complex terms and processes. Let’s break these concepts down one by one: Packet switching is a networking technology that switches use to forward data frames through a network based on their destination address, ...
In EtherLike-MIB, the dot3StatsFrameTooLongs frames count in SNMP increases when the frame packet size is more than the default MTU. If the packet size is more than the configured MTU value and exceeds 1Mbps, packets are dropped. Packets are fragmen...
IEEE 802. 1p and IEEE 802.1Q – allows a QoS over Ethernet by tagging packets with an indication of the priority or class of service desired for the frames. These tags allow applications to communicate the priority of frames to internetworking devices. RSVP support can be achieved by mapping ...