When do you need to buy a license for your Cisco router? Some people may be not clear about the Cisco licensing. So in this article we will talk about Cisco router license. First of all, let’s share a problem…
How much do you know about Cisco software for its hardware? There are main four types of Cisco software: IOS, XE, XR, and NX-OS. In this article, we will map the main IOS and IOS XE; you can check…
The Cisco Catalyst 3850 Switch uses Cisco IOS XE Software. Cisco IOS XE Software is delivered as a bundle that contains a set of packages. You can boot and run the Cisco IOS XE Software on the Cisco Catalyst 3850…
What should I do after I purchase a license? How to activate a Cisco license? Some users who bought a Cisco license may be not clear that how to activate the Cisco license. Here, we will share the easy tips…
Cisco announced a change in product part numbers for the Cisco ISR 800 IOS Software AX Technology Package Licenses. This is a product part number change only announcement. Customers will experience no change in functionality when using the new product…
If your remote router and switches are being cooled properly, how do you know that? Are the fans working? In the following article David Davis will tell you how to see the environmental status of your Cisco routers and switches…
Cisco announced the end-of-sale and end-of life dates for the Cisco ASA 5500 Series Software Release 8.3 and 8.6. The last day to order the affected product(s) is May 27, 2014. Customers with active service contracts will continue to receive…
Cisco delivered the end-of-sale and end-of life dates for the Cisco Catalyst 6500 Series ASA Services Module Software Release 8.5(x). The last day to order the affected product(s) is June 16, 2014. Customers with active service contracts will continue to…
To display temperature, voltage, fan, and power supply information, use the show environment command in user EXEC or privileged EXEC mode. The following outputs are from Cisco 7206VXR. To display all available syntax, use the show environment? (As shown in…
To display the current state of the routing table, use the show ip route command in user EXEC or privileged EXEC mode. The show ip route command is a powerful tool to use at this point in your search. You…
The show memory exec command is often used to check the amount of a router’s free memory. In troubleshooting cases where router performance is the focus, this is a major command used to see the statistics about the router’s memory. To show…
Show modules: To display the module status and information, use the show module command in user EXEC or privileged EXEC mode. This example shows how to display information for all modules on a Catalyst 6500 series switch that is configured…
“I’m a little confused on what the “show controllers” commands really do… can someone clarify? Based on the output, I’m inclined to suspect that it provides mostly physical layer type information about an interface. From a troubleshooting perspective, when is…
Show interfaces: Use the show interfaces EXEC command to display statistics for all interfaces configured on the router or access server. The resulting output varies, depending on the network for which an interface has been configured. show interfaces [type number]…
Show version: Displays information about the router’s internal components, including the IOS version, memory, configuration register information, etc. The most common use of the show version command is to determine which version of the Cisco IOS a device is running.…
Show stacks is an exec command that is commonly used to diagnose system crash situations. The first section of this command’s output displays stack utilization of processes and interrupt routines, and the reason for the last system reboot. When a system…
As the Cisco IOS is riddled with thousands of commands, configuring it can be challenging and learning some essential commands is necessary. This quick reference describes 10 commands you’ll need to rely on when handling various configuration and troubleshooting tasks.…
The trend towards Datacenter consolidation has resulted in reduction in application software deployed at branch location. However for business continuity and application performance reasons some applications must still be deployed at branch infrastructure network. UCS E-Series blade servers gives users…
Cisco IOS IP Service Level Agreements (SLAs) is a part of Cisco IOS that enables customers to assure new business-critical IP applications, as well as IP services that utilize data, voice, and video, in an IP network. Cisco has augmented…
This week Cisco has patched 8 vulnerabilities that could impact the availability of devices using various versions of its IOS software. IOS is a multitasking operating system that combines networking and telecommunications functions and is used on many of the…
In this article we will list the main comparison of basic Static route configuration between Cisco IOS and Cisco IOS XR. Configuration Example: In this example we have R1 running Cisco IOS and PE1 IOS XR. In IOS XR static…
There are a number of common mistakes that are made while learning something about Cisco IOS. In this article it covers the largest of these misconfigurations. This list is of course subjective, but it should provide a good reference for…