Networking-Cisco IOS

IOS was developed In  1980's 'C Program Language'. IOS does not support multiprocessing at a time. First one instruction should be completed after that only other instruction will begin.

Moreover you can found IOS in borderless network that is a network allow anyone anywhere on any device to connect like corporate network example for this 3900 series ISR routers and 2900 cisco routers.

• Cisco IOS is a inter operating system family of software which used on cisco routers and switches.

• Best feature of Cisco IOS is routing, switching, Inter networking and telecommunication functions this features are integrated into multi-tasking operating system. Although Cisco IOS code base includes a cooperative multi-tasking kernel, most of the IOS features ported to other kernels like QNX and Linux for use in cisco products or simulators like cisco VIRL.

• Cisco IOS use shared memory space, since all pool uses same memory space, sometimes misbehaving OSPF could wreak havoc on router process.

• If you take Cisco 7513 modular router which supports versatile interface processor (VIP) module which allow individual line card to run their own instances for load balancing or redundancy.

Note:

Remember not all cisco model run on IOS. For example ASA security model device which runs on Linux based operating system, and carrier routers which runs on IOS-XR.

Hill Station view:

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How to secure devices from cyber threats:

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