Samsung P1000 Galaxy Tab

 

Size:	190.1 x 120.5 x 12 mm
Weight:	380Gms
Quantity:	1 Set

 GENERAL 2G Network GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 900 / 1900 / 2100
Announced 2010, September
Status Available. Released 2010, October
SIZE Dimensions 190.1 x 120.5 x 12 mm
Weight 380 g
DISPLAY Type TFT capacitive touchscreen, 16M colors
Size 600 x 1024 pixels, 7.0 inches
- Gorilla Glass display
- TouchWiz UI
- Multi-touch input method
- Accelerometer sensor for UI auto-rotate
- Three-axis gyro sensor
- Touch-sensitive controls
- Proximity sensor for auto turn-off
- Swype text input
SOUND Alert types Vibration; MP3, WAV ringtones
Speakerphone Yes, with stereo speakers
- 3.5 mm audio jack
MEMORY Phonebook Practically unlimited entries and fields, Photocall
Call records Practically unlimited
Internal 16/32 GB storage, 512 MB RAM
Card slot microSD, up to 32GB, buy memory
DATA GPRS Yes
EDGE Yes
3G HSDPA, 7.2 Mbps; HSUPA, 5.76 Mbps
WLAN Wi-Fi 802.11 b/g/n
Bluetooth Yes, v3.0 with A2DP
Infrared port No
USB Yes, v2.0 (proprietary)
CAMERA Primary 3.15 MP, 2048x1536 pixels, autofocus, LED flash
Features Geo-tagging
Video Yes, 720x480@30fps
Secondary Yes, 1.3 MP
FEATURES OS Android OS, v2.2 (Froyo)
CPU ARM Cortex A8 processor, 1 GHz processor; PowerVR SGX540 graphics
Messaging SMS(threaded view), MMS, Email, Push Mail, IM, RSS
Browser HTML
Radio No
Games Yes
Colors Black and Grey
GPS Yes, with A-GPS support
Java Yes, MIDP 2.1
- Social networking integration
- Digital compass
- Full HD video playback
- Up to 7h movie playback
- TV-out
- MP4/DivX/WMV/H.264/H.263 player
- MP3/WAV/eAAC+/AC3/FLAC player
- Organizer
- Image/video editor
- Thinkfree Office (Word, Excel, PowerPoint, PDF)
- Google Search, Maps, Gmail,
YouTube, Calendar, Google Talk, Picasa integration
- Readers/Media/Music Hub
- Adobe Flash 10.1 support
- Voice memo/dial/commands
- T9
BATTERY Standard battery, Li-Po 4000 mAh
Stand-by
Talk time
MISC SAR US 1.00 W/kg (head)
SAR EU 1.07 W/kg (head) 

*Price 16GB 

$950.06 (USD) / € 714.36 (euro) / Rs. 42990 (INR)

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SmartPhone - Apple Iphone 4 in 16GB / 32GB

Apple iPhone 4 16GB / 32GB GSM Smartphone

 

Size:	115.2 x 58.6 x 9.3 mm
Weight:	137 Gms
Colour / Material:	Black, White

GENERAL 2G Network GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 850 / 900 / 1900 / 2100
Announced 2010, June
Status Available. Released 2010, June
SIZE Dimensions 115.2 x 58.6 x 9.3 mm
Weight 137 g
DISPLAY Type TFT capacitive touchscreen, 16M colors
Size 640 x 960 pixels, 3.5 inches
- Scratch-resistant surface
- Multi-touch input method
- Accelerometer sensor for auto-rotate
- Three-axis gyro sensor
- Proximity sensor for auto turn-off
SOUND Alert types Vibration, MP3 ringtones
Speakerphone Yes
- 3.5 mm headset jack
MEMORY Phonebook Practically unlimited entries and fields, Photocall
Call records 100 received, dialed and missed calls
Internal 16/32 GB storage, 512 MB RAM
Card slot No
DATA GPRS Class 10 (4+1/3+2 slots), 32 - 48 kbps
EDGE Class 10, 236.8 kbps
3G HSDPA, 7.2 Mbps; HSUPA, 5.76 Mbps
WLAN Wi-Fi 802.11 b/g/n
Bluetooth Yes, v2.1 with A2DP
Infrared port No
USB Yes, v2.0
CAMERA Primary 5 MP, 2592 x 1944 pixels, autofocus, LED flash
Features Touch focus, geo-tagging
Video Yes, 720p@30fps, LED video light, geo-tagging
Secondary Yes, videocalling over WiFi only
FEATURES OS iOS 4 (based on Mac OS)
CPU 1 GHz Apple A4 processor
Messaging SMS (threaded view), MMS, Email, Push Email
Browser HTML (Safari)
Radio No
Games Downloadable, incl. motion-based
Colors Black, White
GPS Yes, with A-GPS support
Java No
- MicroSIM card support only
- Scratch-resistant glass back panel
- Active noise cancellation with dedicated mic.
- Digital compass
- Google Maps
- iBooks application
- Audio/video player and editor
- Voice command/dial
- TV-out
BATTERY Standard battery, Li-Po 1420mAh
Stand-by Up to 300 h (2G) / Up to 300 h (3G)
Talk time Up to 14 h (2G) / Up to 7 h (3G)
Music play Up to 40 h

 

*Price 16GB / 32GB Respectively

$1038.45 / $1193.15 (USD)

€ 780.83 / € 897.15 (euro)

or

Rs. 46,990 / Rs. 53,990 (INR)

 

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ProximVision ES

Simplify your Wireless Network Management

Rapid Network Deployment

Automates configuration processes for faster, more efficient deployment of Proxim Wireless networks

Mobile Configuration Management

ProximVision ES help the network managers with mobile options for exhaustive device configurations

Geographical Network View and Statistical Plots

Provides a map overlay of your entire network with real-time, visual network status indicators

Great Ease of Use and Supportability

ProximVision ES allows you to manage your entire network from a single console

Download a FREE Copy

Ask for a FREE 4 node version of ProximVision ES

*Price $ 299.00 USD

or
€ 222.67 approx. (euro)

Rs. 13,400 (INR)

(For Payments & Downloading a Copy, Kindly Check How to Pay. It's on Homepage)

Tsunami MP-8100 Series

World Class Point-to-Multipoint System Delivering 4G performance Today's Date

World-Class Performance

With up to 300 Mbps data rates, Tsunami™ MP-8100 delivers wireless performance in excess of 4G products on the market today

Flexible Channel Planning Worldwide

Provides flexible channel planning with support for a wide range of licensed and unlicensed frequencies from 4.9-6.4 GHz, 2.3-2.5 GHz and Supports Dynamic Frequency Selection globally in all 5GHz bands

Carrier Grade Advanced Security

Advanced AES encryption for military-grade over-the-air communications, and radio mutual authentication to eliminate rogue units/man-in-the-middle attacks

NLoS and Advanced Features

MP-8100 utilizes OFDM and enhanced 2x2 and 3x3 MIMO techniques to offer better RF interference mitigation and better non-line-of-sight (NLOS) support

 

Dual Gigabit Ethernet Ports

Industry′s first PtMP products to provide dual Gigabit Ethernet ports with PoE in/out, capable of powering 802.3af compliant IP video cameras or network radios for even greater ease of deployment.

Centralized Management

ProximVision ES centralized network management system now supports Tsunami™ MP-8100 products, providing rapid network deployment and mobile configuration

*Price $ 4699.00 USD

or
€ 3501.18

Rs. 2,10,700/- (INR)

(For Payments, Kindly Check How to Pay. It's on Homepage)

MeshMAX Product Series

Convergence of WiMAX, WI-FI Mesh & WI-FI

Tri Radio Design

Tri-radio design provides one radio for WiMAX backhaul for distribution, one radio for Wi-Fi mesh link and one radio for exclusive Wi-Fi access traffic

All In One

Encapsulate the best in class features of the award-winning Tsunami WiMAX and ORiNOCO mesh product families

Power Packed Features

Current MeshMAX™ product features WiMAX QoS and 802.16e class roaming with unprecedented mobility capabilities and much more

Flexible channel Planning Worldwide

Offers flexible channel planning includes 3.4 - 3.6 GHz for WiMAX, 5.15 - 5.85 GHz and 2.412 - 2.472 for Mesh and Wi-Fi applications

Centralized Management

ProximVision ES centralized network management system now supports Tsunami™ MP.11 products, providing rapid network deployment and mobile configuration

Significantly Reduces TCO

Reducing the number of nodes minimizes network complexity, decreases installation and management time with lowest deployment cost per square mil

*Price $ 3599.00 USD
or
€ 2680.31 (euro)

Rs. 1,61,300/- (INR)

(For Payments, Kindly Check How to Pay. It's on Homepage)

ORiNOCO WI-FI Mesh Series

High Capacity Mesh Access points Deliver, Flexible, Scalable & Reliable DATA, Voice & Video

Optimized Mesh Performance

ORiNOCO Mesh Creation Protocol (OMCP) enables mesh backhaul and Wi-Fi coverage on one radio, while the second radio is used exclusively for Wi-Fi coverage

Reduce Network Complexity

The dual-radio ORiNOCO Wi-Fi Mesh Access Points deliver data, voice and video over Wi-Fi to the edge of a network over a flexible, auto-forming, and self-healing; near line of sight mesh backbone

Proactive Security Measures

ORiNOCO access points support the latest security standards, including IEEE 802.11i and AES encryption, and add proactive security measures to prevent attacks

Simplified Convergence

Industry-leading throughput with 802.11b/g and 802.11a simultaneous operation

Flexible Channel Planning Worldwide

Supports License-free and licensed frequency bands worldwide in 2.4GHz, 5.15-5.35 GHz, 5.47-5.725 GHz, 5.725-6.08 GHz frequency bands

Advanced Features

Tools to speed installation and optimization: Automatic channel selections, adjustable transmit power, QoS and much more

* Price 3999.00 USD

or
€ 2979.41 (euro)

Rs. 179300/- (INR)

(For Payments, Kindly Check How to Pay. It's on Homepage)

QuickBridge 60250

Short Range Ethernet Bridge for Campus

Flexible channel Planning Worldwide

Point-to-Point wireless bridge operating in 60GHz license-free band

Best in class Performance

Complete hop-in-a-box wireless bundle delivering 250Mbps of robust connectivity up to 800 m

Unprecedented Ease of Installation

Proxim QuickBridge 60250 bundle is one of the easiest to install broadband wireless bridge on the market. Requiring no training or wireless experience, can be installed within hours

Advanced
Features

Includes small form factor low power consumption, Ice bridge, PoE and extensive management capabilities

Carrier Class Reliability

QuickBridge 60250 can be effectively used in latency sensitive application like VOIP because of its low latency with 99.99% reliable RF Transmission

Cost Effective Solution

Significantly cuts operational expenditures by eliminating fiber and leased line costs, leading to a low cost of ownership and ROI

*Price 4999.00 USD

or

€ 3722.19 approx. (euro)

Rs. 2,240,00/- (INR)

(For Payments, Kindly Check How to Pay. It's on Homepage)

Tsunami MP.11 HS

Tsunami MP.11 HS

Ultra-Secure Point-to-Multipoint & Point-to-Point Wireless Solution from MP.11 Family

Advanced Security Protection

Tsunami MP.11 HS product family offers FIPS 140-2 level 2, stronger 256-bit AES encryption, and secure management (SSH, HTTPS, and SNMPv3) all in one truly integrated solution

Adaptive Wireless Networks

MP.11 HS networks dynamically adapt to the ever-changing network load for optimum performance with secure roaming for vehicle speeds up to 120 mph (200 kmph)

Flexible channel Planning Worldwide

Wide range of frequencies with support for 1.8 GHz (U.S. Federal government and NAT0) and unlicensed 2.4 and 5.1-5.9 GHz frequency bands.

WiMAX based QoS
Enables quadruple-play applications - video, voice, data and mobility with low latency and IEEE 802.16 QoS

Centralized Management

ProximVision ES centralized network management system now supports Tsunami™ MP.11 products, providing rapid network deployment and mobile configuration

Fast Installation & Lower Maintenance

The MP.11 product series incorporates hardware and software features that reduce labor costs associated with initial deployment and post-sales maintenance

* Price 899.00 (USD)
or
€ 669.66 (euro)

Rs. 40,300/- (INR)


(For Payments, Kindly Check How to Pay. It's on Homepage)

Tsunami Mini 8100 Series

Tsunami Mini 8100 Series

Advantage
for OEMs

Small form factor (4"x3") along with configurable operating modes – PtMP Subscriber or Wi-Fi Access Point/Client – makes integration easier and provides time-to-market advantage for OEMs


NLOS and Advanced Features

The Tsunami™ Mini 8100 employs a high power 24dBm radio with advanced OFDM and 2x2 MIMO technologies to provide robust connectivity even in non-line-of-sight (NLOS) conditions


Centralized Management

The ProximVision ES centralized network management system now supports the Tsunami™ Mini 8100 series, providing rapid network deployment.



Flexible Channel Planning Worldwide

Wide range of frequency selection in the 2.3-2.5 GHz and 4.9-6.1 GHz frequency bands to cater to worldwide regulatory domains.


Adaptive Network with Roaming

The Tsunami™ Mini 8100 features Proxim’s proprietary Wireless Outdoor Routing Protocol (WORP) to dynamically adapt to ever changing network loads for optimum performance.


Advanced Security

The Tsunami™ Mini 8100 is an ultra-secure FIPS 140-2 certifiable Point-to-Multipoint (PtMP) solution for Federal, DoD and NATO applications including OEMs.


*Price $899 (USD)
or
€ 669.60 approx. (euro)

Rs. 40,300 (INR)

(For Payments, Kindly Check How to Pay. It's on Homepage)

PROXIM -Tsunami GX 800

PROXIM -Tsunami GX 800

World-class Performance

Tsunami™ GX800 is a licensed microwave Point-to-Point link
with up to 622Mbps aggregate throughput with ultra low latency of 100µs offering unparalleled capacity and reliability for carriers, service providers and Enterprise markets

Flexible Channel Planning

Supports wide frequency bands from 6–381 GHz with range of user configurable channel bandwidths from 7 MHz to 56 MHz to match licensing regulations

Split Mount Architecture

The product has an extremely small foot print and designed with a split-mount architecture which includes an Outdoor Unit (ODU) and a Compact Indoor Unit (IDU) that are a snap to install and easy to maintain


Advanced
Features

Tsunami™ GX800 features Built-in Spectrum Analyzer for Interference avoidance, Built-in BER Tester, ATPC and Adaptive Coding Modulation (ACM) for best possible throughputs and high available radio waves

Extensible
Interfaces

Features flexible and scalable interfaces Gigabit Ethernet 1000 BaseT, SDH/PDH with additional HSI port module slots E1/T1, E3/T3 with true traffic capacity up to 622Mbps

Centralized Management

Our ProximVision ES centralized network management system can easily configure and monitor GX800 microwave bridge remotely from a PC in your command center*

*Price $ 4499.00 (USD)
or
€ 3351.63 approx. (euro)

Rs. 2,017,00 /- (INR)

(For Payments, Kindly Check How to Pay. It's on Homepage)

ORiNOCO AP-8000 & AP-800

ORiNOCO AP-8000 & AP-800

Blazing Speed

The first 802.11n solution to achieve greater than 300Mbps throughput performance, with dual-radio throughput rates of 320Mbps
Best In Class Performance

ORiNOCO® AP-8000 and AP-800 802.11n access points offer higher performance than existing wired and wireless LANs while avoiding the costly controller upgrades, deployment challenges
Flexible Channel Planning Worldwide

Provides Flexible Channel Planning support for 2.4 GHz, 5.15-6.08GHz unlicensed frequency bands. Support Dynamic Frequency Selection (DFS) globally in all 5GHz bands
Secure and Reliable

Enhanced security with AES encryption and robust RADIUS accounting along with IEEE 802.11e quality of service support providing high reliability for quad play applications
Centralized Management

ProximVision ES centralized network management system now supports ORiNOCO®AP-8000 & AP-800 Products, providing rapid network deployment and mobile configuration
No Upgrade Hassles

Seamlessly integrates with ORiNOCO® legacy products to interoperate even in a/b/g modes

*price $45.00 USD
or
€ 33.25 (Euro)

Rs. 2,000/- (INR)

(For Payments, Kindly Check How to Pay. It's on Homepage)

Wintec FileMate 3FMPCIMWN-R PCI Wireless Network Adapter

 

Wintec FileMate 3FMPCIMWN-R PCI Wireless Network Adapter

Wintec FileMate 3FMPCIMWN-R PCI Wireless Network Adapter

PCI Wireless Network Adapter

The FileMate PCI Wireless-N Network Adapter 3FMPCIMWN-R is an internal wireless network adapter that enables wireless connectivity for desktop systems up to 300Mbps. Using today’s most advanced wireless technology standard, Wireless-N (backwards compatible with 802.11b/g), the FileMate PCI Wireless-N Adapter has an indoor range up to 100 meters (328 feet) and an outdoor range of up to 300 meters (984 feet). Users will experience maximum performance, extended range, and stronger connectivity with the FileMate PCI Wireless-N Network Adapter.

Connect Wirelessly

The FileMate® PCI Wireless-N Network Adapter is an internal wireless network adapter that installs into most Desktop Computers. Connecting to a wireless network is hassle-free compared to running expensive network cables and installing connections in the walls of your home. A simple installation and setup from your desktop computer is all that is needed to connect to an established wireless network.

Wireless-N Takes it Farther and Faster

The FileMate® PCI Wireless-N Network Adapter is an internal wireless network adapter that installs into most Desktop Computers. Connecting to a wireless network is hassle-free compared to running expensive network cables and installing connections in the walls of your home. A simple installation and setup from your desktop computer is all that is needed to connect to an established wireless network.

Fast Network Experience

Once the PCI Wireless-N Network Adapter has been installed and setup, the computer will seamlessly detect and
connect to their wireless network upon computer start-up. Great for users working with e-mail, media uploads and downloads, and also connection to other network computers, storage, and printer devices. The unbelievable speed and range of wireless N technology provides a seamless network connection and user experience.

 

3FMPCIMWN-R Features

• Fast wireless network connection
• Easy installation and setup
• Great range up to 100m (328 ft.) indoors and 300m (984 ft.) outdoors
• Extremely quick transfer speeds with Wireless-N (draft 802.11n) technology

*Price: $30.00 USD
or
€ 22.5 approx. (Euro)
or
Rs. 1345/- Indian Rupees (INR)


(For Payments, Kindly Check How to Pay. It's on Homepage)

PROXIM WIRELESS - Enterprise WLANs

With the advent of 802.11n technologies, the age of the truly wireless enterprise is here. With throughput speeds more than double that of many traditional wired LANs, today's enterprises can not only experience greater speed and efficiency, but with all the benefits of mobility as well.

The truly wireless enterprise is about far more than efficiency and convenience, though – it is about a drastic reduction in cost and complexity as well. With throughput performance of greater than 300Mbps (as compared to 80-100 Mbps for the wired LAN), IT no longer needs to spend the time and money to run wire to each and every desk, saving money not only in time spent, but also reducing the size (and cost) of Ethernet switches organizations need to buy. And because Proxim's WLAN solutions are distributed and do not require costly wireless controllers, organizations can avoid the cost of controller upgrades and power issues required to upgrade to 802.11n, while still enjoying a centrally-managed, scalable WLAN.
Enterprise mobility is no longer a luxury for the road warrior or the select few – it is increasingly a requirement for productivity at every stage of an organization. All employees benefit from being able to connect and do business from anywhere, and organizations are able to change more rapidly to better meet business demands. WLAN solutions from Proxim provide unparalleled flexibility and scalability for fast-changing organizations – enabling enterprises to easily redeploy or expand their workforces and facilities without the substantial delays and expense of installing cable or leasing lines.
Proxim Wireless has provided indoor and outdoor WLAN solutions to hundreds of thousands of organizations throughout the world, saving organizations money while enhancing productivity by enabling true, enterprise-wide mobility. And because Proxim is the only company to offer all the components in a complete end-to-end wireless solution – including seamless integration and management of all components – your enterprise WLAN can be integrated with Wi-Fi mesh, WiMAX and wireless backhaul products for the most flexible and scalable wireless systems available. 

Advantages

• Extends or replaces your wired LAN for instant network access anywhere
• Significantly reduces the cost and complexity of moves, adds and changes
• Converged voice, video and data with all the benefits of mobility
• Campus connectivity solutions eliminate the high recurring costs of leased lines and install in hours
• Distributed solution enables ultimate scalability, while maintaining centralized management

Applications

• Enterprise-wide mobility for increased productivity
• Building-to-building campus connectivity
• Network redundancy links
• Voice over WLANs
• Enabling video over wireless.

(Note: Information Technology based Memorandum)

PROXIM WIRELESS - Last-Mile Connectivity

Last-Mile Connectivity

 

Whatever you choose to call it – last mile, first mile, local loop – the meaning is the same: it's the part of the telecommunications network that  provides users with broadband wireless access (BWA)

As total broadband access subscriber rates and usage rise by leaps and bounds each year, service providers and municipalities of all kinds and sizes are facing a challenge: addressing customer and resident demands, respectively, for quick service delivery and high-speed network access – wherever they may be – at a low cost. The price associated with customer acquisition costs and ongoing last mile maintenance puts additional pressure on service providers to find new ways to cost-effectively deploy broadband access services to large numbers of customers.

Advantages

• Faster time to market and lower Total Cost of Ownership
• Flexibility in service delivery using shared or dedicated bandwidth
• Scalability to handle rural and urban subscriber densities on the same infrastructure
• Security, performance and reliability that meets or exceeds leased line networks
• Part of Proxim's portfolio of fully integrated and centrally managed end-to-end wireless solutions

Applications

• Bridging of the digital divide
• Reaching home subscribers in new geographies
• Providing competitive commercial broadband access
• Connectivity for school buildings and districts
• High bandwidth connectivity for public hotspots
• Broadband service for multi-dwelling residences
• Public safety and transportation

WiMAX and outdoor Wi-Fi mesh solutions from Proxim Wireless give service providers the fastest path to new markets and revenue.  Wireless networks can quickly and cost-effectively capture new customers by delivering the quadruple play of video, voice, data and mobility.
With Proxim, wireless networks can grow in all directions - from backhaul to laptop. Adding capacity or extending your network into new areas is simple when you work with Proxim, because Proxim is the only company to offer all the components in a complete, end-to-end scalable wireless solution – including the seamless integration and management of all components.

(Note: Knowledge based Information)

Performance Troubleshooting VMware vSphere – Network

Performance Troubleshooting VMware vSphere – Network

Introduction

Networking is the fourth I/O component that I will be covering in this series of performance write ups.  Networking is another important component in the stack, if not well thought out, can lead to performance problems later down the road.  Security is an important design consideration when planning your network configuration.  One might argue that with a virtual environment your are more prone to risks since at times there is no longer a physical cabling restriction in place.  If someone has the appropriate rights in virtual center, they could bridge two logical networks together, or place a virtual machine into a DMZ.  VMware introduced vShields to mitigate your virtualized environment from some of these risks.  By creating zones you can enforce policies that can bridge, firewall, or isolate virtual machines between network segments.  When designing or upgrading your VMware environment, work closely with your network team to understand their design considerations.  If possible, leverage VLAN tagging (802.1q) to eliminate excessive physical cabling to different segments.

What’s new

Networking is a rapidly evolving technology, for most system administrators the term networking conjures up images of CAT5 UTP cables that plug into a switch.  Consider current networking technologies and you will start seeing storage and Ethernet networks beginning to merge together, which is adding more complexity to some designs. Most traditional VMware designs were originally built around fiber channel SAN’s, but now NFS and iSCSI have become an attractive solution to keep IT spend down.  Fiber Channel Over Ethernet (FCOE) is another newly introduced technology that is starting to be adopted by the industry.  This is the encapsulation of fiber channel frames over high speed (10Gb and higher) Ethernet networks.  Rather than having network cards for TCP/IP traffic and HBA’s (Host Bus Adapters) for fiber channel connectivity, administrators can implement CNA’s (Converged Network Adapters to consolidate this traffic into one card.

With the release of vSphere came some new core technologies at the network layer that expand beyond the standard VMware virtual switch.  If you purchased the enterprise plus license you can now take advantage of the Virtual Distributed Switch (vDS).  The vDS allows you to manage one central networking configuration across multiple hosts.  If you are a Cisco shop, you can take it one step further and have a complete Cisco network solution by implementing the Nexus 1000v.  The 1000v replaces the VMware vDS and gives you the same Cisco command line tools that network administrators are familiar with.

What to look for

• Check port utilization of your ESX hosts.  If you believe you are starting to experience network performance problems start with examining your host configurations.  Are you providing enough network bandwidth to your virtual machines?  Consider adding another physical network connection for the host, or upgrading to a faster connection type (i.e. gigabit or 10Gb).  Here is a great example by Kendrick Coleman of a rock solid network configuration/design:  http://www.kendrickcoleman.com/index.php?/Tech-Blog/vsphere-host-nic-configuration.html
• Follow VMware best practices.  I know this might sound obvious, but many times people grow into their environments over time and business requirements change along the way.  Review your configuration against the vSphere administrator guides.
• Implement 802.1q.  I am a fan of VLAN tagging, we have been using it since our initial implementation of VMware years ago.  You can get cable consolidation while being able to configure your virtual machines on any logical network segment you need.  This keeps costs down while using less network cables and expensive switch ports.
• Consider vShield Zones for added security.  If you are an enterprise plus customer, evaluate if vShield zones might help with security risks and network compliance, this is a feature your already paying for.
• Consider leveraging vDS as your environment grows larger.  Standard virtual switches wok fine for small to mid-sized implementations but the larger your vSphere environment grows the more automation is needed to be able to scale.  Virtual Distributed Switching allows you to maintain a central management point for your configuration.  This configuration then gets automatically “distributed” to the hosts that are part of this configuration.
• Ensure you are running the latest Virtual Hardware version 7.  With the latest version of virtual hardware comes improved drivers at the network layer.

Monitoring with Virtual Center

The first place I would start with checking network configurations is Virtual Center.  Virtual Center provides excellent reporting and gives you granular control over which metrics you would like to report against.  VMware vSphere now includes a nice graphical summary in the performance tab of the physical host.  This gives you a quick dashboard type view of the overall health of the system over a 24 hour period.  Here is the network sample:

Selecting the advance tab gives you a much more granular way of viewing performance data.  At first glance this might look overwhelming, but with a little bit of fine tuning, you can make it report on some great historical information.  Here is a snapshot of network utilization:

Check your various virtual nic’s to see if some are more overloaded than others

Monitoring with ESXTOP

Esxtop is another excellent way to monitor performance metrics on an ESX host.  Similar to the Unix/Linux “Top” command, this is designed to give an administrator a console snapshot of how the system is performing.  SSH to one of your ESX servers and execute the command “esxtop”.  The default screen that you should see is the CPU screen, if you need to monitor networking select the “n” key.  Esxtop gives you great real-time information and can even be set to log data over a longer time period, try “esxtop –a –b > performance.csv”.  Check your network connections both physical and virtual, make sure you aren’t over subscribing any particular connections or ports.

Conclusion

If you’re using VMware vSphere there are several places to go for troubleshooting networking problems.  First start out with a solid foundation, follow the best practices that VMware has spelled out in your administration guides listed above.  Work with your networking group within your company or your customers environment, make sure you are adhering to their standards and guidelines.  Consider security issues and identify and compliances that you might have to implement that might make vShields come in handy.  Leverage 802.1q if possible to simplify network configurations across all your hosts.
Look for the outliers in your environment.  If something doesn’t look right, that’s probably the case.  Scratch away at the surface and see if something pops up.  Use all possible tools available to you like PowerCLI.  Approaching problems from a different perspective will sometimes bring light to a situation you weren’t aware of.  If all else fails, engage VMware support and open a service request.  Support contracts exist for a reason and I have opened many SR’s that were new technical problems that have never been discovered by VMware support.

(Note: For Curriculum Knowledge only)