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This is a list of TCP and UDP port numbers used by protocols for operation of network applications. The Transmission Control Protocol (TCP) and the User Datagram Protocol (UDP) only need one port for bidirectional traffic. TCP usually uses port numbers that match the services of the corresponding UDP implementations, if they exist, and vice versa.
Cisco CRS-1 Backbone Core Router. Carrier Routing System (CRS) is a modular and distributed core router developed by Cisco Systems Inc that enables service providers to deliver data, voice, and video services over a scalable IP Next-Generation Network (NGN) infrastructure.
"Corporate market" refers to enterprise networking and service providers. Enterprise networks Products in this category are Cisco's range of routers, switches, wireless systems, security systems, WAN acceleration hardware, energy and building management systems and media aware network equipment.
Readily identifiable icons are used to depict common network appliances, e.g. routers, and the style of lines between them indicates the type of connection. Clouds are used to represent networks external to the one pictured for the purposes of depicting connections between internal and external devices, without indicating the specifics of the ...
The software images installed on these devices intentionally crippled the hardware (for example on-board Ethernet port on the 2501CF was disabled, and the 2503I disabled both on-board serial ports). 'Mission-specific' models included 2501CF, 2501LF, 2502CF, 2502LF, 2503I, 2504I, 2520CF, 2520LF, 2521CF, 2521LF, 2522CF, 2522LF, 2523CF and 2523LF.
This article lists protocols, categorized by the nearest layer in the Open Systems Interconnection model.This list is not exclusive to only the OSI protocol family.Many of these protocols are originally based on the Internet Protocol Suite (TCP/IP) and other models and they often do not fit neatly into OSI layers.
These are routing and communication protocols developed and maintained by Cisco Systems. Standardized protocols that are deployed in Cisco products are not listed here now. Some standard protocols may be listed here because the page shows that they were developed based on a Cisco proprietary protocol that does not have its own page.
Cisco console cable. A rollover cable (also known as a Yost cable, Cisco cable, or a console cable) is a type of null-modem cable that is used to connect a computer terminal to a router's console port. This cable is typically flat (and has a light blue color) to help distinguish it from other types of network cabling.