In their highly anticipated announcement this week, Apple introduced two new phones, the iPhone 5C and iPhone 5S, and confirmed that iOS 7 would be released on September 18th. Techies like myself took note that iOS 7 will include quite a number of new features. We at Cisco want to help you understand what iOS 7 means for your network, so here’s a quick blog to sum it up:
How does iOS 7 impact your wireless networks?
Soon your employees and guests will be upgrading to IOS 7. Did you know up to 20% of traffic to mobile devices is software upgrades, application updates and synchronizing your devices via the cloud? Cisco’s Application Visibility and Control technology can help you identify and tame these applications and is available on the routers, Wireless LAN and visible via Prime Infrastructure. In addition, Cisco’s ISR can cache these updates to reserve valuable and expensive WAN bandwidth. More details about protecting the WAN is available in another blog.
If you leverage a Captive Portal, you will experience a change in behavior. Apple has enhanced the Captive Network Assistant (CNA) functionality iOS 7 making it more robust. Cisco has proactively developed and tested a new version of wireless LAN controller code to interoperate with Apple’s new implementation while ensuring a seamless experience for all other clients.
Finally iOS 7 also has significant security and manageability enhancements to improve productivity for the enterprise.
What do you need to do in order to optimize for iOS 7? Read More »
Tags: 7.5 release, aireOS, Apple, captive portal, Cisco, code, controller code, IOS, IOS XE, ios7, network, wireless, wlan
Last fall, I blogged about No SSID Outage or Access Point Stateful Switchover introduced with the AireOS 7.3 release whereby if your wireless LAN Controller fails due to some hardware failure, thousands of Access Points fail over sub-second to the standby controller! This is possible due to continuous synchronization of CAPWAP states, Configuration Changes, Radio Channel and Power, Roaming Keys and Access Point licenses between the two Controllers. This means even if the administrator changes the configuration, channel plans or the clients roam and the primary controller fails; the Access Points will simply fail over in a stateful fashion to the secondary. In this blog, I will share details on the upcoming enhancements to High Availabilty with the 7.5 release.
In the upcoming AireOS 7.5 release, we take High Availability to the next level with two critical enhancements.
1. Today, after Access Points fail over from the primary to the standby controller, each client tries to re-authenticate and the standby controller then checks against its CCKM database whether the client has already authenticated. At the rate of several tens of authentications per second, it can take anywhere from zero to a few hundred seconds for the tens of thousands of clients that are connected to a controller to re-authenticate. The client stateful essentially eliminates this downtime with sub-second failover. Thus the total downtime that any user running a voice-call or Citrix session experiences is 2-3 seconds that the application requires to reconnect.
Read More »
Tags: 7.3, aireOS, Cisco, client, client reauthentication, controller, l2, redundancy, release, SSID, wi-fi, wifi, wireless, wireless controller, wlan, WLC