Lessons

OSPF Area, OSPF Hierarchical Network Design, and advantages of OSPF Areas

Open Shortest Path First (OSPF) is the recommended IGP for very large enterprise networks. Entire Open Shortest Path First (OSPF) network can be be divided up into small networks called OSPF Areas. Open Shortest Path First (OSPF) supports hierarchical network design. Open Shortest Path First (OSPF) allows the network to be designed in two layer… Continue reading OSPF Area, OSPF Hierarchical Network Design, and advantages of OSPF Areas

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Lessons

OSPF Router ID, OSPF Router ID Selection Algorithm and Configure OSPF Router ID

Each Router in an OSPF network needs a unique OSPF Router ID. The OSPF Router ID is used to provide a unique identity to the OSPF Router. OSPF Router ID is an IPv4 address (32-bit binary number) assigned to each router running the OSPF protocol. OSPF Router ID should not be changed after the OSPF… Continue reading OSPF Router ID, OSPF Router ID Selection Algorithm and Configure OSPF Router ID

Lessons

Upgrade or install IOS from Trivial File Transfer Protocol (TFTP) Server

To install IOS from TFTP server, follow these steps. 1) If you want a fresh install, erase the contents of the flash memory using the "erase" command as shown below. Router01#erase flash Erasing the flash filesystem will remove all files! Continue? [confirm]y Erasing device... eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee <outout omitted> eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee ...erasedee Erase of flash: complete 2) Copy… Continue reading Upgrade or install IOS from Trivial File Transfer Protocol (TFTP) Server

Lessons

Backup IOS and configuration files to Trivial File Transfer Protocol (TFTP) Server

How to copy the contents of flash memory to TFTP Server To copy the contents of the flash (IOS file is stored in flash memory) memory to TFTP server, use the following command from privileged mode. Router01#copy flash tftp Source filename []? C2600-Adventerprisek9-Mz_124-2_T.bin Address or name of remote host []? 192.168.100.10 Destination filename [C2600-Adventerprisek9-Mz_124-2_T.bin]? !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!… Continue reading Backup IOS and configuration files to Trivial File Transfer Protocol (TFTP) Server

Lessons

Naming Convention of Cisco IOS Image Files

              IOS is the Operating System software used on Cisco routers and current Cisco Network Switches.Cisco IOS (Internetwork Operating System) image file is normally stored in flash memory and it has a naming convention. Following output shows the "show-flash" command from privileged mode. Ramanece #show flash System flash directory:… Continue reading Naming Convention of Cisco IOS Image Files

Lessons

Configure Solarwinds Trivial File Transfer Protocol (TFTP) Server to backup IOS and configuration files

                  Solarwinds Trivial File Transfer Protocol (TFTP) Server is a free TFTP Server product from Solarwinds. After the installation of Solarwinds Trivial File Transfer Protocol (TFTP) Server in a computer, you need to configure it to backup IOS and configuration files of Cisco Routers and Switches. Follow… Continue reading Configure Solarwinds Trivial File Transfer Protocol (TFTP) Server to backup IOS and configuration files

Lessons

Install Solarwinds Trivial File Transfer Protocol (TFTP) Server

                              Many Trivial File Transfer Protocol (TFTP) server software products are available for free download on the Internet. Solarwinds Trivial File Transfer Protocol (TFTP) server is one of the leading free Trivial File Transfer Protocol (TFTP) server software. Click the following… Continue reading Install Solarwinds Trivial File Transfer Protocol (TFTP) Server

Lessons

Trivial File Transfer Protocol (TFTP)

Trivial File Transfer Protocol (TFTP) is a file transfer protocol, which is the basic form of File Transfer Protocol (FTP). Trivial File Transfer Protocol (TFTP) has a very simple design and it requires only a very small amount of memory. Trivial File Transfer Protocol (TFTP) is mainly used for network booting of computers and network… Continue reading Trivial File Transfer Protocol (TFTP)