Search results
Results from the WOW.Com Content Network
CDP is also responsible for dynamically communicating the Voice VLAN value from the Cisco switch to the Cisco VoIP Phone. Under Cisco's pre-standard scheme, the PSE (switch) will send a fast link pulse (FLP) on the transmit pair. The PD (device) connects the transmit line to the receive line via a low-pass filter. The PSE gets the FLP in return.
A switch is a device in a computer network that connects other devices together. Multiple data cables are plugged into a switch to enable communication between different networked devices. Switches manage the flow of data across a network by transmitting a received network packet only to
The inside of a Cisco 1900-series switch. Catalyst is the brand for a variety of network switches, wireless controllers, and wireless access points sold by Cisco Systems.While commonly associated with Ethernet switches, a number of different types of network interfaces have been available throughout the history of the brand.
This product line became available in 2007 with software release 4.0 [4] [5] and the device was demonstrated in March at the 'Spring VoiceCon 2007'. [6] In March 2007 the product started to ship, and then in May 2007 a detailed evaluation between this switch and two competitor's switches identified that this switch had a better performance and better total cost of ownership.
20 or 44 Gb port switch, and 4 x Dual Personality Ports (2 x Gb or SFPs). Also capable of supporting 10GE ports. 20 or 44 10/100 port switches with two models supportingPoE functionality, and 4 x Dual Personality Ports (2 x Gb or SFPs). [4] [5] 20 or 44 Gb port switch with PoE functionality, and 4 x Dual Personality Ports (2 x Gb or SFPs).
In 2005, all the network interface controllers in the United States (in computers, switches, and routers) used an estimated 5.3 terawatt-hours of electricity. [7] According to a researcher at the Lawrence Berkeley Laboratory, Energy-Efficient Ethernet can potentially save an estimated US$450 million a year in energy costs in the US.
Cisco's IOS software maintains one IDB for each hardware interface in a particular Cisco switch or router and one IDB for each subinterface. The number of IDBs present in a system varies with the Cisco hardware platform type. Physical and logical interfaces on the switch will be referenced with either expanded or abbreviated port description names.
Cisco 6509 switch with four line cards and dual supervisors. The Cisco Catalyst 6500 is a modular chassis network switch manufactured by Cisco Systems from 1999 to 2015, capable of delivering speeds of up to "400 million packets per second". [1] A 6500 comprises a chassis, power supplies, one or two supervisors, line cards, and service modules.