Cisco 1550 AP software image options

While trying to order Cisco 1552 Outdoor AP's, there are 2 options for SW-

SWAP1500-BTIMGE-K9 is the unified code software.

S155W7K9-15202JB is the autonomous code software.

Note- the autonomous code does not support mesh architecture.

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WLAN subnet sizing recommendations or Best Practices

Excerpts from Mobility Design Guide-

"The default behavior of the WLC is to block broadcast and multicast traffic from being sent out the WLAN to other wireless client devices."

http://www.cisco.com/en/US/docs/solutions/Enterprise/Mobility/emob41dg/ch2_Arch.html#wp1028269

In most of the WLAN designs it is considered safe to use large subnet sizes if you are not allowing Bcast and not much of Mcast traffic.

As long as the WLC is not propagating Bcast/Mcast traffic and no spanning tree loops, the Mobility subnet sizing is not a constraint for WLAN. Usual recommendation to Large deployments is ---no subnet size more than /20 and /19.

Also it depends so much on the type of traffic specially Bcast/Mcast traffic. So it is NOT advisable to use large subnet size in case of Bcast/Mcast/STP loops in N/W.

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Difference in Cisco AP SW images

There are two image types at the time of ordering any Cisco LAP. The two images can be used in situations given below-


S3G2RK9W8-12423JY  IOS Wireless LAN Recovery-should be used for Controller based deployment

AND

SWLAP3600I-MESH-K9  Enterprise Wireless Mesh - AP3600I Controller-based SW Image-used for Wireless MESH deployments only

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LAP real time functions

One of the most commonly asked question in wireless domain is-

"In Centralized architecture what is the function of AP?"
                             OR
"What information is stored on AP (as thin client in Centralized architecture) and what else on WLC"?

This is what a LAP (Lightweight Access Point/Thin AP) does-

Real-Time 802.11/MAC Functionality:
• Beacon Generation
• Probe Response
• Power management/Packet buffering
• 802.11e/WMM scheduling, queueing
• MAC layer data encryption/decryption
• 802.11 control messages
•Data Encapsulation/De-Encapsulation
•Translational Bridging (H-REAP Local Switching)
•Fragmentation/De-Fragmentation



And Rest is done by WLC which includes (not limited to)-


Non Real-Time 802.11/MAC Functionality:
• Association/Disassociation/Reassociation requests/response
• 802.11e/WMM (Wi-fi Multimedia)
• 802.1X/EAP (Port based authentication)
• Key management
•802.11 Distribution Services
•802.11 STA (Client/Station) Services (Auth/Deauth/Privacy)
•Wired/Wireless Integration Services

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Cisco Acquisition Summary

Cisco's growth strategy is based on identifying and driving market transitions. Corporate Development focuses on acquisitions that help Cisco capture these market transitions.

Cisco segments acquisitions into three categories: market acceleration, market expansion, and new market entry. The target companies might bring different types of assets to Cisco, including great talent and technology, mature products and solutions, or new go-to-market and business models. Cisco particularly seeks acquisitions with the potential to reach billion dollar markets.

Integration is essential to successful acquisitions. Our overall business development effort includes engaging from the early diligence phase through to mainstream business, by investing in dedicated integration resources across the company at the corporate and functional levels. We have a long history of integration, achieving best practices through continuous learning and deep experience with a process that challenges all companies who repeatedly make acquisitions.

Leaders in IT and other markets frequently seek Cisco's advice on acquisition integration. Our integration process starts with the entire acquisition strategy. Cisco seeks acquisitions where there is not only a strong business case but also a shared business and technological vision, and where compatibility of core values and culture foster an environment for success.

See Acquisitions By Company Name

See Acquitions By Year Wise


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Juniper Over Promises Under Delivers

No one has ever thought that competition will smash Juniper openly in market because of its false commitments. This has been seen first time in Internet history. Finally a website has been launched by CISCO which explicitly says that how CISCO(Customer Trusted Partner) is Better than Juniper not only in Data Center Networking but in each and every aspect. Below are the few facts which Juniper committed long time back to customers but still not able to deliver them:-

1. Juniper promised 100 Gigabit Ethernet on MX-series edge routing products two-and-a-half years ago. It’s still not available.
2. Juniper announced the T4000 core router in 2nd half CY2010. It’s been over a year now, where is it?
3. Juniper’s Project Falcon mobile platform: After three launches in 2009, 2010 and – again — in 2011, Juniper still has not publicly debuted the product or announced any customers of it.
4. Juniper’s Project Stratus/QFabric for the data center: Despite four announcements since February 2009, the QFabric system is still unavailable. If QFabric is finally delivered later this year, it will have taken more than two-and-a-half years to deliver. What is available does not deliver on Juniper’s “3-2-1” vision.

Read More About Stunning Facts To Select Cisco Over Juniper

Read the full story to get to know about the vendor who is over-promised and under delivered.


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