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CISCO TELEPRESENCE SERVER (TCS) INSTALLATION [STEP BY STEP] For complete installation video watch the video ^ Read carefully!! Important things to remember: 1)You will having an .exe file to install TCS. No any ISO file or .OVA file is required. 2)Windows server 2012 Installed. 3)Sql 2012server SP1 Installed. ( Officially it is said that it will support SP1, SP2, SP3) 4)Licenses you should have one release key and options keys. Installation: 1) Install the windows 2012 server.      In Roles and services add Web server, .net 3.5, .net 4.5, asp .net, Window server Backup. 2) Install SQL 2012 server.     Create a DB Instance with name TCS. and all defaults. 3)Now copy the TCS Installer folder to C drive in windows server. 4)Open command prompt with adminstrator rights. 5)Edit license.txt file and add your serial number, release key and option keys in there without any special characters. 6)Now in command prompt go to the installation...

CALCULATING NETWORK ADDRESS OF AN IP ADDRESS: In this Post I will share you a trick to find out, What is the network address of a IP address. In CCNA or JNCIA Exams we get questions like: what is network address of 172.16.12.100/29? what is network address of 192.168.100.100/26? If it's a class-full subnet (/8, /16, /24) we can find it out easily but in case of a subnetted IP address we required some more time to identify the Sub network IP address. Below is a simple 3 steps formula that gives you accurate Sub-network IP address of any given IP: Step-1: Find out how many hosts we get in that subnet:   (Including Network address and Broadcast address) Like, in  192.168.1.0/24 we get 255 Hosts. 192.168.1.0/29  we get 8 Hosts. 192.168.1.0/30  we get 4 Hosts. Below is the chart that explains how many hosts per bit we get: The above Pic represents the 8 Bits in an octet, And no. of hosts per each bit. So, Clearly if we ...

      UPGRADING FIRMWARE IN HP SWITCHES In Switch: <system>system-view [system]ftp server enable local-user admin password simple admin authentication-attribute user-role network-admin service-type ftp quit vlan 2 port gigabitethernet 1/0/1 quit interface vlan-interface 2 ip address 192.168.1.1 255.255.255.0 quit save in PC Turn off windows firewall Turn off Any antivirus Turn off windows defender //connect a cable one end to switch 1/0/1 port and other end to your PC. configure static ip address in your PC. IP:192.168.1.10 Mask: 255.255.255.0 Test the connectivity by pinging 192.168.1.1 Open command prompt with administrator rights Type: ftp 192.168.1.1 username: admin password: admin ftp> binary ftp> put filename.ipe wait for 3 min. file will be uploaded to switch. after uploading completed type in the following commands. <system>boot-loader file flash:filename.ipe all main pres...