Use Layer-3 Switch or Router?
In general, you want to use a router when most of the time the device does routing. Likewise, you want to use a switch when when most of the time…
Year: 2013
Most Frequent Interview Questions for Network Engineers
In the last article we listed 100 interview questions for network engineers. May be some of them are not often asked. Again, here we gathered most frequently asked interview questions for network engineers…
Cisco, Google Top Greenpeace IT Ranking 2013
In the middle and late of April (April 22 is the Earth Day) is every year, Greenpeace will release the latest version of its Cool IT Leaderboard, which remind us…
Secure SNMP in Cisco Switches and Routers
This article focus on the ways how we can secure SNMP access in Cisco Switches and Routers Simple Network Management Protocol (SNMP) uses the default UDP port 161 for general SNMP messages and UDP port 162…
Top 100 Interview Questions for Network Engineers
What interview questions for a network engineer is going to prepare? Maybe we can list a lot of basic questions, such as the administrative distance of EIGRP, eBGP, iBGP, what…
Main Differences between Lines of Cisco 3750 Series Switches
What are the MAIN differences between Cisco’s highly successful lines of 3750 series switches? There is a brief overview of the biggest differences between the 3750 V2, 3750-E, and the…
How to Configure SNMP on Cisco IOS-based Router/Switch?
SNMP is an application-layer protocol that provides a message format for communication between SNMP managers and agents. The SNMP manager is the system used to control and monitors the activities of network hosts using SNMP; this…
Cisco 3750 Stacking Configuration
Process for replacing a failed master switch in a Cisco 3750 switch stack 1. Upgrade or downgrade the software on the replacement switch to match the rest of the switch…
The Way to Activate Your Cisco ASA 5500
We will show the Latest to activate the Cisco ASA 5500 firewall. Detailed info you can check as follows (Taken from Cisco’s Forum) CiscoASA# show activation-key Serial Number: ************ Running…
How to Connect to Cisco ASA?
Although Cisco ASA by default ships with a configuration that already includes 2 preconfigured networks, (Outside network and Inside network configured to 192.168.1.0 subnet with configured DHCP server), which provides an easy…
EoS and EoL Announcement for the Cisco Aironet 1260 Series
Cisco announces the end-of-sale and end-of-life dates for the Cisco Aironet 1260 Series. The last day to order the affected product(s) is October 7, 2013. Customers with active service contracts…
Make Our Network Green, Love Our Earth
Earth Day is observed on April 22 each year, which reminds us of protecting our world in every way we can do. Nowadays, we hardly live without modern technology, electrical…
Exciting, the State Of Social Ads
Social media advertising is big business–Facebook, LinkedIn and Twitter combined for well over five billion dollars in ad revenue in 2012. But while spending on social media ads continues to rise–81 percent…
EoS and EoL Announcement for the Cisco Aironet 1140 Series & Cisco Aironet 1040 Series
Cisco announces the end-of-sale and end-of-life dates for the Cisco Aironet 1140 Series & the Cisco Aironet 1040 Series. The last day to order the affected product(s) is October 1,…
Cisco ASA 5520 Basic Configuration Guide
The bellow is a quick start to get your Cisco ASA off the ground by the means of a few print screens It provides an easier way of explaining how…
Cisco Buys Firm Ubiquisys to Highlight Growing Interest in Small Cells
The sale of U.K. hardware company Ubiquisys to Cisco is one Europe’s biggest tech exits of the past several years. Operators and telecom equipment vendors are showing a growing interest…
How to Select Power Supply for Catalyst 3750-X Series and Cisco 3560-X Switch?
The Cisco Catalyst3750-X and 3560-X Series Switches are an enterprise-class lines of stackable and standalone switches, respectively. These switches provide high availability, scalability, security, energy efficiency, and ease of operation with…
Configuring Static NAT on a Cisco ASA Security Appliance
Two of the most common forms of network address translation (NAT) are dynamic port address translation (PAT) and static NAT. PAT is the many-to-one form of NAT implemented in many…
5 Ways ‘Big Data’ is Going to Blow Your Mind and Change Your World
Call it whatever you want—big data, data science, data intelligence—but be prepared to have your mind blown. Imagination and technology are on a collision course that will change the world…
How to Configure VLAN, STP, DTP Step by Step Guide?
In this tutorial we will demonstrate that how can you Configure Access or Trunk links Create VLAN Assign VLAN membership Configure Intra VLAN routing Configure VTP Server Make VTP Clients…
Cisco to Acquire Cloud Integration Firm SolveDirect
Cisco has announced this week plans to acquire SolveDirect as the company looks at adding more management tools to make it easier for businesses to manage multiple IT systems. The…
Site-to-Site IPSEC VPN between Two Cisco ASA 5520
Cisco ASA 5500 Series appliances deliver IPsec and SSL VPN, firewall, and several other networking services on a single platform. Cisco ASA 5520, a member of the Cisco ASA 5500…
