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  #1 (permalink)  
قديم 12-16-2007, 09:02 PM
الصورة الرمزية khz999
شبكي جديد
تاريخ التسجيل: Nov 2007
المشاركات: 21
Post أجهزة سيسكو تحت المجهر..... أي تساؤل عنها أنا مستعد...

أن شركة سيسكو كما هو معلوم لديها العديد من اجهزة الاتصال اللاسلكية..


وأنا مستعد للمساعدة في حلول أي مشاكل يتعرض لها الاخوة الاعضاء في هذا المجال

وأذكر لكم بعض الاجهزة على سبيل المثال لا الحصر..



Access Points :

Cisco Aironet 1250 Series
Cisco Aironet 1240 AG Series
Cisco Aironet 1230 AG Series
Cisco Aironet 1200 Series
Cisco Aironet 1130 AG Series
Cisco Aironet 1100 Series
Cisco Aironet 1000 Series


Outdoor Wireless :

Cisco 3200 Series Wireless and Mobile Routers
Cisco Aironet 1520 Series
Cisco Aironet 1500 Series
Cisco Aironet 1400 Series
Cisco Aironet 1300 Series



Wireless LAN Controllers :


Standalone Controllers
Cisco 4400 Series Wireless LAN Controllers
Cisco 2100 Series Wireless LAN Controllers
Wireless Integrated Routers
Cisco 3800 Series Integrated Services Routers
Cisco 2800 Series Integrated Services Routers
Cisco 1800 Series Integrated Services Routers
Cisco 800 Series Routers
Cisco Wireless LAN Controller Module


Wireless Integrated Switches:

Cisco Catalyst 6500 Series Wireless Services Module (WiSM)
Cisco Catalyst 3750 Series Integrated Wireless LAN Controllers


ونأتي لتفصيل بعض الاجهزة ومنها :





Cisco Aironet 1250 Series Access Point
--------------------------------------------------------------------------------

The Cisco® Aironet® 1250 Series is the first enterprise-class access point to support the IEEE 802.11n draft 2.0 standard. 802.11n offers combined data rates of up to 600 Mbps to provide users with mobile access to high-bandwidth data, voice, and video applications regardless of their location. Through the use of multiple-input multiple-output (MIMO) technology, 802.11n also provides reliable and predictable WLAN coverage to improve the end-user experience for both existing 802.11a/b/g clients and new 802.11n clients.

The robust Cisco Aironet® 1250 Series Access Point (Figure 1) is a modular platform designed to be easily field-upgradeable to support a variety of wireless capabilities. This modularity allows businesses to deploy existing wireless technologies today with the confidence that their network investment will extend to support emerging and future wireless technologies.

The platform was specifically engineered to support the power, throughput, and mechanical requirements of higher-speed WLAN technologies, including 802.11n. Currently, the platform provides both 2.4-GHz and 5-GHz modules compliant with the IEEE 802.11n draft 2.0 standard. As technology evolves, the platform is flexible to support future radio modules designed to deliver intelligent RF services, further enhancing the performance and reliability of the wireless network. The Cisco Aironet 1250 Series is a rugged indoor access point designed for both office and challenging RF environments such as factories, warehouses, hospitals and large retail establishments that require the antenna versatility associated with connectorized antennas, a rugged metal enclosure, and a broad operating temperature range. With a Gigabit Ethernet (10/100/1000) interface, the Cisco Aironet 1250 Series delivers line-rate throughput for higher-speed WLAN technologies such as 802.11n. The access point offers the flexibility of inline as well as local power options.


Investment Protection

The Cisco Aironet 1250 Series is a modular platform that is compliant with the 802.11n draft 2.0 standard and is the first Wi-Fi CERTIFIED 802.11n draft 2.0 access point. Furthermore, the platform has been tested extensively to ensure simple, secure interoperability with IEEE 802.11n draft 2.0 standard devices. The Cisco Aironet 1250 Series provides additional investment protection with its modular, field-upgradeable design and easy-to-install radio modules. Cisco is committed to standards, and the Cisco Aironet 1250 Series provides a path for compliance to the final IEEE 802.11n standard, once ratified. Businesses with an immediate need to enhance the performance of their WLANs can deploy the IEEE 802.11n draft 2.0 standard radio modules now with the confidence that their investments are protected. These modules can be easily field-upgraded should this be required by a shift in standards evolution.
Award-Winning Security

The Cisco Aironet 1250 Series supports industry-standard wireless security protocols, including 802.11i, Wi-Fi Protected Access (WPA), WPA2, and 802.1X, along with numerous Extensible Authentication Protocol (EAP) types. The access point delivers hardware-accelerated Advanced Encryption Standard (AES) encryption designed to meet the most stringent enterprise and government encryption requirements without compromising performance. As part of the Cisco Secure Wireless Solution, Cisco Aironet 1250 Series Access Points operating with LWAPP enable comprehensive wired and wireless intrusion prevention and detection. Each access point can scan the RF environment and report on suspicious or unauthorized wireless activity, effectively allowing businesses to create a comprehensive threat defense across 802.11a/b/g and now 802.11n. Additionally, the Cisco Aironet 1250 Series Access Point supports management frame protection for the encryption of 802.11 management frames by the wireless network infrastructure. This allows the network to completely remove the threat from man-in-the-middle and spoofing attacks. If an access point detects a malicious attack, an alarm will be generated and reported to the network administrator.
RF Management

Cisco incorporates unique capabilities within its wireless solution that address the operational challenges of deploying business wireless networks. At the heart of these capabilities are intelligent Radio Resource Management (RRM) algorithms designed to consistently fine-tune WLAN parameters to best meet ongoing performance requirements. RRM allows the Cisco Unified Wireless Network to continuously analyze the existing RF environment and automatically adjust access point power and channel settings to help mitigate such things as co-channel interference and signal coverage problems. Unlike conventional 802.11a/b/g products, the Cisco Aironet 1250 Series uses multiple-input multiple-output (MIMO) technology to take advantage of the effects of RF multipath propagation in order to improve the reliability and predictability of the wireless signal. The Cisco Aironet 1250 Series supports the latest U.S. and European requirements for Dynamic Frequency Selection (DFS), ensuring the access point accurately detects radar events and makes full use of the available 5-GHz spectrum. In addition, the Cisco Aironet 1250 Series supports a Software Defined Radio (SDR) enabling it to be upgraded in the field to support new frequencies and power levels as they are approved for use. These RF management capabilities increase system capacity, perform automated self-healing to compensate for RF dead zones and access point failures, and provide a comprehensive way to manage one of your most precious assets, your corporate spectrum.
Deployment Scenarios

The Cisco Aironet 1250 Series with support for the 802.11n draft 2.0 standard is ideal for a variety of deployment scenarios across many industries. The improved throughput, reliability, and predictability of an 802.11n network meet the requirements that many companies have for moving towards a truly mobile enterprise. Cisco's next-generation wireless technology is especially beneficial for environments with the following characteristics:
• Challenging RF environments (for example, manufacturing plants, warehouses, clinical environments)

• Bandwidth-intensive applications (for example, digital imaging, file transfers, network backup)

• Real-time, latency-sensitive applications including voice and video

• Environments that need to support existing 802.11a/b/g and new 802.11n wireless clients

Designed for critical business environments and installations that require antenna versatility, the Cisco Aironet 1250 Series features antenna connectors for improved coverage and aesthetically pleasing installation options. The UL2043 rating of the Cisco Aironet 1250 Series allows the access points to be placed above the ceiling tile in plenum areas regulated by municipal fire codes or suspended from drop ceilings.
رد مع اقتباس
  #2 (permalink)  
قديم 12-16-2007, 09:07 PM
الصورة الرمزية khz999
شبكي جديد
تاريخ التسجيل: Nov 2007
المشاركات: 21
افتراضي

الجهاز الثاني:





Cisco Aironet 1240AG Series IEEE 802.11a/b/g access points deliver the versatility, high capacity, security, and enterprise-class features demanded by WLAN customers. Designed specifically for challenging RF environments like factories, warehouses, and large retail establishments it has the versatility associated with connected antennas, a rugged metal enclosure, and a broad operating temperature range.

The Aironet 1240AG Series is available in:

A lightweight version
An autonomous version that can be field-upgraded to lightweight operation
A single-band 802.11g version for use in regulatory domains that do not allow 802.11a/5 GHz operation
The product comes complete with all the mounting hardware necessary for a secure, rugged installation. The mounting bracket locks the access point as well as the Ethernet and console cables in place to prevent theft and tampering.

وللموضوع بقية
رد مع اقتباس
  #3 (permalink)  
قديم 12-16-2007, 09:12 PM
الصورة الرمزية khz999
شبكي جديد
تاريخ التسجيل: Nov 2007
المشاركات: 21
افتراضي

الجهاز الثالث:






Cisco Aironet Wireless Access Points
--------------------------------------------------------------------------------

As WLAN deployments expand, security, scalability, reliability, ease of deployment, and management become increasingly important. Cisco provides a comprehensive line of access points that deliver enterprise-class features for business-ready wireless LANs.

Deployment Environments

Wireless LANs are becoming commonplace in numerous environments, including offices, schools, factories, warehouses, and even the outdoors. At the same time, the wireless industry is evolving from lower-capacity, single-band devices to high-capacity, dual-band solutions. The Cisco Aironet Family of access points meets these various application requirements by providing:
• Single- and dual-band access points

• Devices designed for indoor and outdoor deployments

• A consistent hardware feature set and predictable RF performance for deployment across the enterprise

As WLAN deployment expands into more applications and installation scenarios, a diverse line of access points is required to meet the associated capacity, coverage, and environmental requirements. The Cisco product line includes access points designed for offices and similar facilities, such as hospitals and retail environments, challenging RF environments like factories and warehouses, and the outdoors. These devices can be installed on desktops, on walls, on ceilings, above ceilings, and on top of poles.
While application requirements may vary, Cisco understands that all enterprise customers require uncompromised network security, scalable manageability, and an evolving set of network services. That's why all Cisco Aironet access points support the Cisco Unified Wireless Network, a framework for wired and wireless integration that delivers the security, manageability, and services that enterprises have come to expect from Cisco on both wired and wireless networks.
Solution

Addressing Feature Requirements

As wireless LAN usage has evolved from basic transport for largely transactional applications, so have the feature expectations of wireless LAN users and administrators. This change has come about on a segment-by-segment, customer-by-customer basis. It is critical for Cisco to provide differing feature sets to best fit differing customer requirements. Given that customer requirements can evolve during the lifetime of a wireless LAN deployment, it is also necessary to provide a means of smoothly upgrading this feature set for the installed base of products, with minimal disruption to network operations.
Cisco's unified wireless LAN feature set offers the features required for most enterprise deployments. Some deployments may not yet require these advanced capabilities. To address these evolving requirements, customers can select lightweight access points, or they can upgrade autonomous access points in the field to lightweight operation. With Cisco, customers can choose the feature set that is right for them, at the time that it is right for them. Table 1 provides a summary of the operational capabilities of various Cisco Aironet access points


Addressing Capacity Requirements

In just a few years, WLANs have evolved from proprietary systems with sub-Mbps capabilities to standardized offerings operating at data rates as high as 600 Mbps for dual-band 802.11n access points. These high data rates are available by taking advantage of the emerging 802.11n draft 2.0 standard with radios operating in both the 2.4 GHz band and the 5 GHz band. 802.11n draft 2.0 offers backward compatibility with 802.11a/b/g devices. Both 802.11b/g and 802.11n draft 2.0 are limited to three nonoverlapping channels when deployed in the 2.4 GHz band. 802.11a and 802.11n draft 2.0 support as many as 23 channels in the 5 GHz band (depending upon local regulations). To provide both backward compatibility and high capacity, WLAN client vendors are migrating to 802.11n-capable client devices, although many devices will continue to support the 802.11a/b/g standards and the 802.11n support complete backwards compatibility to ensure investment protection.
Deploying an infrastructure that takes full advantage of next generation wireless with 802.11n makes sense if capacity or reliability is currently an issue or is expected to become an issue during the useful life of the infrastructure devices. Given the rapid expansion of wireless-enabled devices, increasing capacity requirements are likely to apply to most WLAN installations. For this majority of applications, access points that support the emerging 802.11n draft 2.0 standard represents a better long-term value, particularly given the low price premium relative to performance. For the few applications that are not expected to present capacity issues in the near term, customers can choose existing 802.11a/g dual-radio access points. Table 2 summarizes which Cisco access points support 802.11a, 802.11b, 802.11g, and the new 802.11n draft 2.0 standard.



Figure 1. Cisco Unified IDS/IPS Detects Malicious Attacks Allowing the WLAN Controller to Disassociate the Offending Client Device


رد مع اقتباس
  #4 (permalink)  
قديم 12-17-2007, 02:17 AM
(موقوف)
تاريخ التسجيل: Oct 2007
المشاركات: 528
إرسال رسالة عبر مراسل MSN إلى atef_saeed_2010 إرسال رسالة عبر مراسل Yahoo إلى atef_saeed_2010
افتراضي

شرح وافر تحمد عليه

لكن ياريت لو كنت لخصت مواضيع الانشاء هذه في سطرين عن كل منتج

ولك جزيل الشكر
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  #5 (permalink)  
قديم 12-19-2007, 10:32 AM
شبكي جديد
تاريخ التسجيل: Dec 2007
المشاركات: 19
افتراضي

شكرا على هذا الايضاح ولدي تساؤل بالنسبة للجهاز

Cisco Aironet 1240AG Series

هل يدعم الآتي جميعاً..

IEEE 802.11a/b/g
802.11a
802.11b
802.11g


ومن المعلوم أن لكل ستنادرد من هذه باند ودث معين

فمثلاً a على 5G
و b على 2.4G
وكذلك g مع اختلاف في كمية البيانات المرسلة من كل منهم..


فكيف يتم التوفيق بين كل هذه المعايير في جهاز واحد..

وهل قمت بتجربة هذا الجهاز من قبل..؟؟

وهل هو للاستخدام المنزلي..؟؟

وهل سعره معقول في حالة الشراء..؟؟


وهل له عيوب واضحة بالنسبة للمدى الاقصى المسموح به..؟؟


يا ليت إجابات نستفيد منها..


شكرا مقدماً...
رد مع اقتباس
  #6 (permalink)  
قديم 01-02-2008, 07:53 PM
شبكي جديد
تاريخ التسجيل: Jan 2008
المشاركات: 10
افتراضي

الله يعطيك ألف عافية ومن أحسن للأحسن انشاله الله
بس عندي استفسار لو تكرمت ؟؟؟
شو دور عمل wireless controller بالضبط ؟؟

وشكرا مرة أخرى
رد مع اقتباس
  #7 (permalink)  
قديم 01-16-2008, 12:28 AM
شبكي جديد
تاريخ التسجيل: Jan 2008
المشاركات: 2
افتراضي

لو سمحت استفسار بالنسبة لاكسس بوينت 1310 اوت دور
كم مستخدم يمكن ان تتحمل ؟
رد مع اقتباس
  #8 (permalink)  
قديم 01-16-2008, 12:34 AM
شبكي جديد
تاريخ التسجيل: Jan 2008
المشاركات: 2
افتراضي

لو سمحت استفسار بالنسبة لاكسس بوينت 1310 اوت دور
كم مستخدم يمكن ان تتحمل ؟
ما هي مسافة التغطية ؟ كم كيلومتر ؟
انتين ( اريال) 15dbi d-link omni يمكن تركيبها على هذا الاكسس ؟

مشكور يا طيب
رد مع اقتباس
  #9 (permalink)  
قديم 02-26-2008, 05:25 PM
شبكي نشيط
تاريخ التسجيل: Nov 2007
المشاركات: 39
افتراضي

السلام عليكم ورحمة الله وبركاته
مشكرين على الكلام الطيب
رد مع اقتباس
  #10 (permalink)  
قديم 03-15-2008, 10:43 PM
شبكي نشيط
تاريخ التسجيل: Nov 2007
المشاركات: 39
افتراضي

cisco accesse point 1200 series

cisco accesse point 1100 series

كم اسعارها عندك ومشكور واذا بترسل على الخاص مافي مشكله
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