Understanding about VMware ESXi and vCenter
1. What license do we need? Functional Comparison Chart Price Comparision Chart 2. Snapshot vs Clone 3. VM migrations …
Expect script for SSH login network a device
Objective : Verify 100 Nortel IP phone SSH login. IP range : 10.10.10.11 ~ 254 SSH credential = login / pwd = admin / ipb@l@nce…
MAC address format convert with excel
Format : 001122334455 -> 00:11:22:33:44:55 From MS Excel, 1. Put a raw MAC address : ex) 001122334455 on A1 2. Copy and paste…
Ethernet frame and MTU
Here is story about MTU. 1. Etherent frame size (without 802.1q) = 1518 Bytes Destination mac(6) + source MAC(6) + type(2) + data(1500) +…
How to configure netflow on Cisco devices
Here is step to configure Netflow on Cisco switches or Router Step 1: Enabling NetFlow Cisco(config-if)# ip flow-export version 5 or 9 *…
Wireless channel throughput when microwave on
Here is a chart for Wireless Channel Throughput from 2.4GHz (802.11b/g) when Microwave is on( within 5m) As you can see, channel 1 is least…
Expect Scripts Install on Windows and tips
Here is a tips for how to install Expect Script on Windows system.(32bit) 1. Downlaod Expect Script for Windows from here(Community version : Free)…
MS PowerShell Script Basic
1. Execution policy – Restricted – Unrestricted – RemoteSigned – AllSigned – Bypass > get-executionpolicy Restricted > set-executionpolicy unrestricted ; you must be…
How to create RDP shortcut icon
Here is the way to create RDP shortcut icon on your desktop. 1. Right click from your mouse button. Choose "Shortcut" …
Nortel UNIStim Firmware Release and download
I thought Nortel(Now Avaya) is not taking care of UNIStim F/W, but it does. See the below link http://www.datarave.net/zfh/tag/unistim/ and here is downlaod…
What is optimal temperature threshold for Cisco 6509?
Recently, we had a cooling system issue on our data center and read Cisco 6509 temperature threshold…. and looked for a reference to see my…
How to verify Windows Server Uptime
How to verify Windows Server Uptime. 1. DOS : systeminfo or systeminfo | find "System Boot Time" 2. DOS : net statistics workstation 3. Taskmgr…
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