0
Describe three different types of switching fabrics commonly used in packet switches?
Wiki User
β 12y ago
a. memory
1. Packet copied by systems' CPU
2. Speed limited by memory bandwidth
b. bus
1. Datagram from input port memory to output port memory via a shared bus
2. Bus contention: switching speed limited by bus bandwidth
c. crossbar
1. Overcome bus bandwidth limitations
2. Banyan networks, other interconnection nets initially developed to connect processors in multiprocessor
3. Advanced design: fragmenting datagram into fixed length cells, switch cells through the fabric.
Wiki User
β 12y ago
- Shared memory switching: Data is temporarily stored in a common memory pool, which allows for fast switching between input and output ports.
- Crossbar switching: A matrix of switches is used to create direct connections between input and output ports, allowing for simultaneous transmission of multiple packets.
- Clos network: A non-blocking architecture that connects multiple stages of switches in a hierarchical manner to provide high scalability and flexibility for routing packets.
Add your answer:
Earn +20 pts
What is three way switching?
Three-way switching refers to a setup where two switches control the same light fixture. This allows the light to be turned on or off from two different locations, providing flexibility and convenience. It involves using special 3-way switches and a traveler wire to connect the switches together.
How many 4 way switches could you put on a single light fixture?
If you are talking about intermediate switches, the switches that are in the middle of the three way (UK two way) circuit, then you can add as many as your project needs. These type of switches must be in the middle, as if installed on the end, the different position switching will not operate.
The Primary Switching Center three-position load interrupter switches provide a visible gap when open?
Yes, three-position load interrupter switches at the Primary Switching Center provide a visible gap when open. This visible gap helps operators easily identify the status of the switch, whether it is open or closed, aiding in maintenance and safety procedures.
What is single pole two way switch?
A single pole two-way switch, also known as a SPDT switch, is a type of electrical switch that can control one circuit from two different locations. It has three terminals: common, and two travelers. It is commonly used for controlling a light fixture from two different locations, such as at the top and bottom of a staircase.
A lamp is to be controlled independently by switches in two different locations?
You will need a three-way switch setup, where one switch is installed in the first location and another switch in the second location. This will allow you to control the lamp from either location independently. Both switches need to be connected to the same circuit, with one acting as the primary switch and the other as the secondary switch.
What is the advantage of switching?
you need switches to help you see. no switches can not help you see.
The primary switching center has how many Way switches?
six
How many 4 way switches could you put on a single light fixture?
If you are talking about intermediate switches, the switches that are in the middle of the three way (UK two way) circuit, then you can add as many as your project needs. These type of switches must be in the middle, as if installed on the end, the different position switching will not operate.
What is difference between packet switching frame switching and cell switching?
Packet Switching refers to the transfering of the packet from 1 node to the other. Where as Cell Switching ,means the switching of a cell from 1 network to the other. Pls note that Packet and Cells are 2 different forms. Packet itself has header and pay load and but Packets are variable in size unlike cells which are fix. When packets are switched, the Packet Switch is used and that Switch looks for the next hop in its routing or forwarding table but when a cell is switched, ATM switches are used and the cells actually carry the data and the header and travels from 1 ATM switch to the other. The ATM switches donot use the complex method as Packet Switches use.
What is the full form of MSC in GSM?
It is mobile service switching center and not just mobile switching center. Because it does not switches our mobile, but the service.
What is meant by soft-switching operation in three-port bi-directional converter?
to prevent the switches from voltage spikes for that we using soft switching
The load interrupter switches of the primary switching center can be operated when the circuit is energized?
true
Where can Netgear switch be bought from?
You can buy a Netgear Switch online from Netgear. They have available switching solutions to fit all your needs. They have everything from Fully Managed Switches, Smart Switches and ProSafe Plus Switches and more.
Why is Mercury used in light switches?
Mercury is used in switches because it is a liquid metal, conducts electricity, and is very stable. Switches made from mercury are also called "Silent Switches", since the switching occurs when the mercury makes the connection between the contacts, instead of a mechanical switch. The mercury is usually contained in a small glass vial within the switch. It is also commonly found in home thermostats, used to control heating and/or air conditioning systems.
Why do appliances at home have different switches?
They have different voltage. So different switches and breakers.
What is the gap between two processes when the CPU executes a process and then switches into another?
CPU switching from process to another
What is the difference among different types of switching devices in networking?
Switches are data link layer devices that, like bridges, enable multiple physical LAN segments to be interconnected into a single larger network. Similar to bridges, switches forward and flood traffic based on MAC addresses. Any network device will create some latency. Switches can use different forwarding techniques-two of these are store-and-forward switching and cut-through switching. In store-and-forward switching, an entire frame must be received before it is forwarded. This means that the latency through the switch is relative to the frame size-the larger the frame size, the longer the delay through the switch. Cut-through switching allows the switch to begin forwarding the frame when enough of the frame is received to make a forwarding decision. This reduces the latency through the switch. Store-and-forward switching gives the switch the opportunity to evaluate the frame for errors before forwarding it. This capability to not forward frames containing errors is one of the advantages of switches over hubs. Cut-through switching does not offer this advantage, so the switch might forward frames containing errors. Many types of switches exist, including ATM switches, LAN switches, and various types of WAN switches. Asynchronous Transfer Mode (ATM) switches provide high-speed switching and scalable bandwidths in the workgroup, the enterprise network backbone, and the wide area. ATM switches support voice, video, and data applications, and are designed to switch fixed-size information units called cells, which are used in ATM communications. Figure 4-3 illustrates an enterprise network comprised of multiple LANs interconnected across an ATM backbone. Figure 4-3 Multi-LAN Networks Can Use an ATM-Based Backbone When Switching Cells LAN switches are used to interconnect multiple LAN segments. LAN switching provides dedicated, collision-free communication between network devices, with support for multiple simultaneous conversations. LAN switches are designed to switch data frames at high speeds. Figure 4-4 illustrates a simple network in which a LAN switch interconnects a 10-Mbps and a 100-Mbps Ethernet LAN. Figure 4-4 A LAN Switch Can Link 10-Mbps and 100-Mbps Ethernet Segments there is no figures as noted above
