Nha Le

Nha Le has written 67 posts for Data centre and Virtualization

Neuro-linguistic programming-NLP

Today i  listen basic NLP of Mr Vas . I am very happy and  I talk with myselft must to do more more success.This is a good way that helping my family , younger , poor people   change your life  base on reflect mylife . Now Visualization the future  of you want to achieve ex … Continue reading

How to caculate data traffic …

Speed Mbps Bit ps Byte ps KB ps KB per hour MB hour (Mb/h) MB/minute 1 1,000,000 125,000(1,000,000/8) 125 450000 450 7.5 2 900 15 3 1350 22.5 4 1800 30 5 2250 37.5 6 2700 45 7 3150 52.5 8 3600 60 9 4050 67.5 10 4500 75

IP Multicast to MAC Address Mapping

Map Multicast MAC address to IP Multicast Addresses In the course of reading through the BSCI authorize self-study guide, I’ve come across a multicast example where the author talks about the concepts behind the multicast IP to MAC address mapping. In order to achieve the translation between a Layer 3 IP multicast address and Layer 2 … Continue reading

Juniper – Firefly Perimeter

The agile and services-oriented nature of virtualization and cloud computing technologies demands security solutions that can dynamically safeguard virtual assets without sacrificing the level of performance, availability and management control that network and security administrators have taken for granted in the physical world. Juniper Network’s Firefly Perimeter addresses these demands by moving beyond the traditional … Continue reading

Carrier Grade NAT – A Look at the Tradeoffs

Owen DeLong is Director of Professional Services at Hurricane Electric, the world’s largest IPv6-native Internet backbone and leading colocation provider. Owen, who is also an IPv6 Evangelist, has more than 25 years of industry experience. magine a restaurant parking lot where each space is permanently assigned to a single patron’s car. This would be very … Continue reading

Carrier-Grade NAT

The NAT444 Model So far we have discussed traditional NAT (mainly NAPT/NAT overload) which is starting to be called NAT44 because it translates one IPv4 address for another (4 to 4). Now let’s explore what I (still) call NAT444, which was also called Carrier Grade NAT (CGN) at one point and is currently called Large … Continue reading

Virtual Switching System

Introduction The Cisco Catalyst 4500,6500 Series Virtual Switching System (VSS) allows the clustering of two or more physical chassis together into a single, logical entity. This technology allows for enhancements in all areas of network design, including high availability, scalability, management, and maintenance. This paper explains the Cisco VSS technology, including its benefits and requirements. … Continue reading

Ask the Expert from Cisco : Nexus Virtual Port Channel (vPC)

Welcome to the Cisco Support Community Ask the Expert conversation. This is an opportunity to learn about design, configuration and troubleshooting of VPC with Cisco experts Hatim Badr and Iqbal Syed. Iqbal is a product manager and technical marketing engineer for the Cisco Nexus 7000 Series of switches. He is responsible for product road-mapping and … Continue reading

Virtual Port Channel (vPC) basic

vPC Technology has been introduced by Cisco Nexus OS as a key component of Cisco Data Center Networking architecture. The major benefits it brings are: Loop avoidance logic allows 2 physical connections from 1 device to 2 Nexus Switches to operate in active/active mode and eliminate STP blocked port to fully utilize the uplink bandwidth. … Continue reading

Build the Best Data Center Facility for Your Business

A comprehensive guide to designing and operating reliable server environments Keep your data center cool, clean, scalable, and secure Learn the five principles of effective data center design Avoid the natural and man-made hazards that can jeopardize a data center site Learn how to lay out key infrastructure objects within the data center for greatest … Continue reading