Thanks Jeff for the clarification. Best Regards, Christos Stefaneskou Network Engineer
[Description: Description: Description: Description: Description: Description: Description: cid:[email protected]] [email protected]<mailto:[email protected]> TAC: (+30) 2109548200 Fax: (+30) 2109548288 206, Syggrou Avenue 17672 - Κallithea - Greece From: Jeff Rensink [mailto:[email protected]] Sent: Monday, March 24, 2014 2:31 AM To: Xristos Stefaneskou Cc: [email protected] Subject: Re: [OSL | CCIE_Wireless] WB1 question 4.2 Here is my interpretation of things... The first requirement in that section is as follows. "For WLC1, create a second interface for access points to use for failover. This should be on Port2" Now this doesn't quite make sense. Yes we can create an AP manager interface and assign it to port 2. But it's not used solely for failover purposes. It is active and your APs will be load balanced between the management interface acting as an AP manager on port 1 and the additional AP manager on port 2. But it does allow failover possibilities. Except now if port 1 goes down, the management interface cannot failover to port 2 since we can only have 1 AP manager per interface, and there's already one on port 2. so failover doesn't really work in this configuration. We have 2 choices really. And the correct one would require further clarification. option 1 Do not add any new interfaces. Just configure the management interface and the dynamic interfaces to use port 1 as the primary port and port 2 as the backup port. This gives full failover between port 1 and port 2, but we aren't adding an interface. option 2 Create 2 new ap managers. One assigned to port 1 and 1 as assigned to port 2. Remove the dynamic ap management feature from the management interface. Configure the management interfaces and dynamic interfaces to use port 1 as their primary port and port 2 as their backup port. Here we retain full failover functionality on all interfaces, but we have to create 2 additional interfaces. Regards, Jeff Rensink : Sr Instructor : iPexpert<http://www.ipexpert.com/> CCIE # 24834 :: Wireless / R&S :: World-Class Cisco Certification Training Direct: +1.810.326.1444 :: Free Videos<http://www.youtube.com/ipexpertinc> :: Free Training / Product Offerings<http://www.facebook.com/ipexpert> :: CCIE Blog<http://blog.ipexpert.com/> :: Twitter<http://www.twitter.com/ipexpert> On Sun, Mar 23, 2014 at 1:58 PM, Xristos Stefaneskou <[email protected]<mailto:[email protected]>> wrote: Hi team, Question 4.2 task 8 "traffic should failover to port2 on WLC1 if port1 goes down" In solution guide we see that an extra ap-manager interface is created. Instead of this extra interface we can simply define as backup port 2, so if port 1 goes down port 2 will handle the traffic for management and the rest dynamic interfaces? What do I miss?? Best Regards, Christos Stefaneskou Network Engineer [Description: Description: Description: Description: Description: Description: Description: cid:[email protected]] [email protected]<mailto:[email protected]> TAC: (+30) 2109548200<tel:%28%2B30%29%202109548200> Fax: (+30) 2109548288<tel:%28%2B30%29%202109548288> 206, Syggrou Avenue 17672 - Κallithea - Greece _______________________________________________ Free CCIE R&S, Collaboration, Data Center, Wireless & Security Videos :: iPexpert on YouTube: www.youtube.com/ipexpertinc<http://www.youtube.com/ipexpertinc>
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