In Cisco IOS versions 12. 3 and greater, IGRP is completely unsupported.

* Cisco IOS

Cisco IOS has features that prevent flooding, i. e. example settings.

** Cisco IOS ( formerly " Cisco Internetwork Operating System ").

In more recent versions of Cisco IOS ( e. g. 12. 4 ), this range is between 1 and 16.

Example of setting up EIGRP on a Cisco IOS router for a private network.

* Cisco IOS IPv6 Configuration Guide, Release 12. 4: Implementing EIGRP for IPv6

Classical, CPU-based architecture of early Cisco devices coupled with flexibility of operating system IOS allowed for keeping up with evolving technology needs by means of frequent software upgrades.

However, limits of IOS and aging Crescendo architecture also forced Cisco to look at merchant silicon in the carrier Ethernet segment.

* Interface Descriptor Block, a Cisco IOS internal data structure that contains information on network data

ISL has been available on Cisco routers since Cisco IOS Software Release 11. 1.

On July 31, 2005, Cisco used legal threats to suppress Mike Lynn from presenting at DEF CON about flaws he'd found in the Cisco IOS used on routers.

One of the various applications of this logging format is in Cisco Systems ' IOS, used by their high-end routers.

Cisco IOS ( originally Internetwork Operating System ) is software used on most Cisco Systems routers and current Cisco network switches.

Cisco IOS is versioned using three numbers and some letters, in the general form a. b ( c. d ) e, where:

Before Cisco IOS release 15 releases are split into several trains, each containing a different set of features.

( In releases prior to Cisco IOS Release 12. 0, the P train served as the Technology train.

NetFlow is a network protocol developed by Cisco Systems for collecting IP traffic information.

Cisco standard NetFlow version 5 defines a flow as a unidirectional sequence of packets that all share the following 7 values:

Advanced NetFlow or IPFIX implementations like Cisco Flexible NetFlow allow user-defined flow keys.

So Cisco introduced sampled NetFlow on Cisco 12000, and that is now used in all high-end routers that implement NetFlow.

* One packet randomly selected in an interval of n packet, in Random Sampled NetFlow, used on modern Cisco routers.

* Class Data Systems ( acquired by Cisco )

Network Based Application Recognition ( NBAR ) is the mechanism used by some Cisco routers and switches to recognize a dataflow by inspecting some packets sent.

* Network Based Application Recognition: RTP Payload Classification, Cisco.

* Cisco: DiffServ QoS recommendations, based on the guideline from RFC 4594

* HKBN has become the first service provider in the world to achieve the Cisco Powered Network Metro Ethernet QoS Certified status

The standard was to involve purchasing PowerPlay approved Cisco hardware and infrastructure that had adequate bandwidth and QoS standards that prioritise PowerPlay gaming packets at the expense of all others.

* CGMP, the Cisco version of the Internet Group Management Protocol snooping

* Data Center Management and Automation – Cisco Intelligent Automation

Cisco Unified Communications Management Suite

* Management Frame Protection, the name used by Cisco Systems to refer to 802. 11w

Japan, Cisco Japan, UNIQLO, Nikko Asset Management and Konami, as well as a medical clinic affiliated with the U. S .- based Johns Hopkins Hospital.

Routing and other protocols run as Cisco IOS processes and contribute to the Routing Information Base ( RIB ).

In the past, the conference has hosted the National Security Agency's Information Assurance Manager course, and various courses by Cisco Systems, Offensive Security, and others.

Nxtbook Media produces digital editions for major customers such as Advanstar Communications, Hewlett-Packard, Reed Business Information, Prism Business Media, Cisco, Valpak, CMP, Thomas Publishing, VNU Media, Weaver Official Publications, Hanley Wood, Kia, Vance Publishing and Ziff Davis.

Certifications are earned from a professional society or from an IT vendor ( e. g., Microsoft, Cisco, etc .).

Several vendors ( Cisco, Juniper, Alcatel-Lucent, Huawei, Quagga ), now implement the below two extensions to stub and NSSA area and although not covered by RFC they are considered by many to be standard features in OSPF implementations.

Both Cisco and Siska are forms of the Thompson language word for " uncle "

Cisco routers running EIGRP will not form an EIGRP adjacency and will complain about K-values mismatch until these values are identical on these routers.

Cisco products, most notably IP phones and Telepresence, are frequently sighted in movies and TV series.

The solutions for each market are segmented into Architectures, which form the basis for how Cisco approaches each market.

The company maintains several Network Emergency Response Vehicles ( NERV ) s which are staffed by Cisco employees during natural disasters and other public crises.

NERVs are normally stored at Cisco facilities in San Jose, California and Research Triangle Park, North Carolina for strategic deployment in North America and are capable of being fully operational within 15 minutes of arrival, running for 72 hours continuously.

Current members of the board of directors of Monsanto are: David L. Chicoine, president of South Dakota State University ; Hugh Grant, the president and CEO of Monsanto ; Arthur H. Harper, managing partner of GenNx360 Capital Partners ; Gwendolyn King, president of Podium Prose, a speakers bureau ; Laura K. Ipsen, senior VP and general manager of Connected Energy Networks at Cisco Systems, Inc., C. Steven McMillan, former chairman and CEO of the Sara Lee Corporation ; William U. Parfet, chief executive officer of MPI Research Inc .; Janice L. Fields, president of McDonald's USA ; George H. Poste, chief executive of Health Technology Networks ; and Jon R. Moeller, chief financial officer of The Procter & Gamble Company.

The mascot for Cisco High School is the Loboes, proudly misspelled for decades, and their colors are black and gold.

The Cisco College mascot is the Wranglers, and their school colors are blue and white.

Other data-link-layer protocols, such as HDLC, are specified to include both sublayers, although some other protocols, such as Cisco HDLC, use HDLC's low-level framing as a MAC layer in combination with a different LLC layer.

In some cases, candidates are expected to possess industry certifications such as the Microsoft MCSA, MCSE, MCITP, Red Hat RHCE, Novell CNA, CNE, Cisco CCNA or CompTIA's A + or Network +, Sun Certified SCNA, Linux Professional Institute among others.

HomePNA promoter companies are AT & T, Pace plc ( formerly 2Wire ), Sigma Designs ( formerly CopperGate ) Motorola, Cisco Systems ( formerly Scientific-Atlanta ), Sunrise Telecom and K-Micro.

The M releases are extended maintenance releases and Cisco will provide bug fixes for 44 months.

The T releases are standard maintenance releases and Cisco will only provides bug fixes for 18 months.

For example, Cisco IOS releases meant for use on Catalyst switches are available as " standard " versions ( providing only basic IP routing ), " enhanced " versions, which provide full IPv4 routing support, and " advanced IP services " versions, which provide the enhanced features as well as IPv6 support.

In all versions of Cisco IOS, packet routing and forwarding ( switching ) are distinct functions.

In 2006, Cisco has made available IOS Software Modularity which extends the QNX microkernel into a more traditional IOS environment, but still providing the software upgrade capabilities that customers are demanding.

The product portfolio of existing Cisco video conferencing solutions and the Tandberg systems are now combined in one portfolio.