About Author

OSPF LSA Types with Example

by ShahedJanuary 4, 2011February 4, 20150

OSPF LSA Types: [boxads] There are different types of link-state advertisements (LSAs) that would be used for Open Shortest Path First (OSPF). This article contains List of OSPF LSA types with a short description. LSAs build up the OSPF link state database (LSDB), and they are exchanged between OSPF enabled nodes. Bellow short description of OSPF LSA types. LSA Type 1 (Router LSA): LAS type 1 are generated by every router of an OSPF area. They are flooded to all other routers only inside an area of origin & directly connected router. In the link-state ID you will find the originating router’s ID. …

by ShahedJanuary 3, 2011February 4, 20150

OSPF Message Types: [boxads] There are several types of message are passes through OSPF network for communication each other. that OSPF Message Types are given bellow: 1. Hello : These messages are used to establish neighbor ship and serve as keepalives among other things. They are also used to elect the Designated Router (DR) and Backup Designated Router (BDR) on multiaccess networks (like Ethernet or Frame Relay). Sent on 224.0.0.5 and 224.0.0.6 Contains the following in the packet; RID of interface Authentication Hello Dead Timers Area ID Nieghbor List (If not a nieghbor, sends more info) Designated Router IP Backup DR …

by ShahedJanuary 2, 2011January 21, 20150

OSPF Area Types: [bodyads] OSPF is a widely used protocol in service provider environments. Now a days the majority of the network setups use this protocol. OSPF is well suited for multi-vendor environments. OSPF allows 5 different area types, which provides flexibility, fast convergence and scalability. OSPF area types are: Backbone/ Non-backbone Stub Area Totally Stubby Area Not-So-Stubby Area (NSSA) Totally Not-So-Stubby Area (NSSA) Backbone area: The backbone area is the core of an OSPF network (also this area known as area 0 or area 0.0.0.0). All other areas are connected to backbone area, and inter-area routing happens via routers …

by ShahedJanuary 2, 2011December 1, 20150

Huawei Switch Factory Reset Command Today i will discuss how to Erase/Remove all current configuration Huawei Switch or Huawei Switch Factory Reset Command. So at first login your switch and run the reset saved-configuration command to Erase the configuration file for the next startup and then restart the device. If you are prompted to save the configuration, select N indicating that the device will not save the current configuration. [boxads] Huawei Switch Factory Reset Example: <JibonBima_Tower_2_9>reset saved-configuration The action will delete the saved configuration in the device. The configuration will be erased to reconfigure. Continue? [Y/N]:y Warning: Now clearing the …

by ShahedJanuary 2, 2011February 5, 20161

Huawei Switch console password reset Today i will discuss about Huawei Switch console password reset / How to Recover Console Port Password in Huawei Switch. In this method Clear the Console Login Password in BootROM and Changing the Console Port Password. [boxads] The BootROM allows you to clear the console port password so that the device does not check the password when you log in through the console port. When the device starts, you do not need to enter the console port password and all configurations are loaded as normally. After the device starts, change the console port password and …

by ShahedJanuary 2, 2011October 26, 20152

Change BootROM Password on Huawei Routers: Today i will discuss how to Change BootROM Password on Huawei Routers. [boxads] Specifications: This example applies to all AR models of V200R002C01 and later versions. Procedure: 1. Connect a PC to the device with a serial cable and log in to the device through the console port. 2. Restart the device. When the message “Press Ctrl+B to break auto startup …” is displayed, press Ctrl+B and enter the password to display the BootROM main menu. BIOS Creation Date : Nov 07 2013, 12:41:12 DDR DRAM init : OK Start Memory Test ? …