Posts

How to Upgrade Software on Cisco 5508/5520 HA WLC

Image
The process to upgrade a Cisco Wireless Lan Controller is quite straightforward but there are a few things you need to be aware of which can minimise the downtime for your wireless network. This guide will go through the process to upgrade a pair of 5508 WLC’s configured in HA setup and connected back to back with RP port. Here is the Topology: Upgrade Software on Cisco 5508/5520 WLC – Steps The first step is to upload the new image to the controller. This process does nothing to your live network and only uploads the image to the controller. Download the image from  cisco.com  and store in a known location on your laptop. For the purpose of this guide I am using 8.0.121.0 .Don't forget to check compatible matrix for your AP Models.  You will need a TFTP server running, I am using TFTPD32 running locally on my laptop. You can also use FTP or SFTP server to transfer the image.  Copy the new image into your tftp directory and go to the GUI on your controller

BGP Attribute

Image

Eigrp Named Mode

You’re feeling pretty confident in your understanding of Cisco’s Enhanced Interior Gateway Routing Protocol (EIGRP), but then somebody mentions something called EIGRP named mode configuration, or possibly even Named EIGRP, and suddenly you’re all like …..?!? CCNP candidate is required to have at least a passing knowledge of EIGRP named mode and how it differs from classic EIGRP. Classic EIGRP, which is also referred to as   EIGRP Autonomous System (AS) mode , is how most people think of EIGRP. A simple classic EIGRP configuration begins with he ever-familiar  router eigrp   autonomous-system  command, where  autonomous-system  is a value between 1 and 65535. You can use the context-sensitive help functionality in IOS to confirm the command syntax as shown below: R12.4(config)# router eigrp   ?     <1-65535>   Autonomous system number The output in the previous example is from a router running IOS 12.4. As you can see, this particular version of IOS supports EI

Routing basics CCNA

Image
Routing Meaning and Objectives Routing is a process by which an information, packet is sent from one location to another location. This process is performed by a hardware device called Router. Routers thus route traffic to all the networks in your Internet work. In order to route packets containing information, a router needs to know the following key information:  Destination address  Information sources  Possible routes  Best routes  Routing information maintenance and verification- A way of verifying that the known paths to destination are valid and are the most current. The Types Of Routing – 1. Static Routing          2. Dynamic Routing Static routing - Network Administrator Configures Information About Remote Network Manually. they are used to reduce overhead and for security .this types of routing is ideal for small networks. Administrator manually update static route entry, whenever an internet work topology requires a change or during link fai