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Segmentation involves the use of a switch to split a larger collision domain into smaller ones in order to reduce collision probability and to improve overall network throughput. In the extreme case (i.e. micro-segmentation), each device is directly connected to a switch port dedicated to the device. In contrast to an Ethernet hub, there is a ...
Some Cisco WLAN access points and VoIP phones supported a proprietary form of PoE [50] many years before there was an IEEE standard for delivering PoE. Cisco's original PoE implementation is not software upgradeable to the IEEE 802.3af standard. Cisco's original PoE equipment is capable of delivering up to 10 W per port.
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.
Switch 5500 - Fast Ethernet. 28- and 52-port models. Two PoE models. Stackable, 24 or 48 10/100 ports plus four SFP Gigabit Ports. One model 24 100 Mb SFPs plus 2 × Gb and 2 × SFP Gigabit Ports. Supports Layer 2 switching and Layer 3 static routing, RIP, and multicast routing (OSPF, PIM).
The Cisco Nexus series switches are modular and fixed port network switches designed for the data center. Cisco Systems introduced the Nexus Series of switches on January 28, 2008. The first chassis in the Nexus 7000 family is a 10-slot chassis with two supervisor engine slots and eight I/O module slots at the front, as well as five crossbar ...
Cisco IPS Manager Express (for multiple IPS devices) Cisco Identity Services Engine (ISE) Panoptica; PostOffice protocol (not to be confused with POP3, SMTP, or other mail delivery protocols). It is a Cisco proprietary protocol that runs over UDP on port 45000. [23] It provides a communications vehicle between the sensors and the Director platform.