Cisco Wireless :: 3850 - L2 / L3 - Difference Between Controllers?
May 2, 2013
I am read this cisco document Cisco Catalyst 3850 Switch Services Guide
[URL]...
which describe that
L2 roam occurs when the user roams from an access point connected to its controller to a different access point connected to another controller, where the two controllers are L2 adjacent to each other.
L3 roam occurs when the user roams from an access point connected to its controller to a different access point connected to another controller, where the two controllers are L3 adjacent to each other.
so what exactly this mean the two controllers are L2/L3 adjacent to each other , what is the different between them.
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Feb 13, 2013
APs must be directly connected to the 3850 for it to work in MA or MC mode. But if we add some switches and configure it to work transparently (without CDP/ VLAN tagging /LDP ) ? Do you think this is really not possible to make it? What impact CAPWAP tunnel gets from this transparent switch ?
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Mar 10, 2013
I understand that Cisco *wants* the APs to be directly connected to the new 3850.I have a few questions. Unfortunately, I think I know the answers. I just want to confirm.
a. When MA/MC is enabled on the 3850, does the 3850 start intercepting *all* CAPWAP packets it sees (much like CDP)? Even non-Cisco CAPWAP packets?
b. If I have a WLC 5500 upstream from the 3850, would APs hanging off a downstream 2960 be able to register to the 5500 through the 3850 when the 3850 is NOT in MA/MC mode?
c. If I have a WLC 5500 upstream from the 3850, would APs hanging off a downstream 2960 be able to register to the 5500 through the 3850 when the 3850 IS in MA/MC mode?
What I'm afraid of is:
a. yes, yes
b. yes
c. no
From the Q&A page:Q. Does the Cisco Catalyst 3850 support indirectly connected access points?A. No. The Cisco Catalyst 3850 switch will always terminate the CAPWAP tunnel locally. Pass-through mode or indirectly connected access point is not supported at this time.
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Sep 9, 2012
I have been tasked by my boss of finding out and implementing a solution of building GRE tunnels from 2 4408 Wireless controllers system for a guest wireless network. I am but a low CCNA wireless, working on getting motivated for CCNP wireless, but I didn't even know if this was possible and if it was where to begin. I have been reading configuration guides but figure I should ask the wireless experts of the world of Cisco.
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Dec 6, 2011
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Aug 6, 2012
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Is there a way I can download the software from the controller, just like I am able to do with an ASA firewall? Then I can upload it to the controller with the older software version.
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Mar 10, 2013
I am setting up two 5508 controllers, one in HA mode, and one the primary for the remote sites in question. I plan to have these units service wireless for MPLS conected regional sites (each with their own local subnet). I was planning on using the cabled hosts network in each site for the wifi addressing and was thinking a different addressing for Guest Access, is this common? I'm obviously concerned with guest access clients but don't know enough how their trafiic is segregated from normal wifi traffic.
Also, when I stand up the controllers the management interface and ap-manager won't be in the same network as where the hosts or LWAP's will reside (routing access will exist though).
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Jun 11, 2013
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However there seems to be no way to 'replicate' the configurations between controllers unless I setup HA , but as I understand it HA is Active /Passive, so essentially, unless you get a failover situaltion, completely 'redundant'.
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Sep 1, 2011
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Aug 12, 2012
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Aug 28, 2012
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Oct 11, 2012
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Aug 1, 2012
--- I have 2 WLC's 5500 that I have to set up on my network with the same configuration except I am not sure that they can be load balanced.
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--- This seems a bit archaeic, but is there anything else smarter to do? Can they be load balanced?
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Jun 21, 2012
We are installing a set of 5508 controllers at one site in Tennessee. At another divisional site we have another controller that covers that division.
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Jun 9, 2012
If we have 2 Cisco 2504 series wlcs and use multicast features in both and both are primary and secondary for LAPs. what about of we use multicast ip address let's say 255.239.1.60 can we use the same ip address for the secondary controller too or we should use any other ip ?
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Apr 23, 2013
Can the new Cat 3850 run MPLS ?
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Jan 28, 2013
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Mar 4, 2013
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We were quoted from our vendor for:WS-C3850-48P-S with 2x715w Power supplies. It looks like the data sheet says that to get POE+ you need 2x1100w or 1x1100w & 1x715w. Do we need to step up to the WS-C3850-48PF-S?
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Aug 23, 2012
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Jan 22, 2013
Every time I power down my WLC2504 controller and then back up, the time reverts back to the year 2000.The APs can't join the controller, due to certificate errors, until I reset the clock. This problem just started recently.
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Apr 3, 2013
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Mar 19, 2013
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Apr 12, 2012
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Jan 18, 2010
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Mar 26, 2013
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Sep 4, 2012
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May 23, 2013
I'm trying to do password recovery on a Catalyst 3850 switch..I've read the section in this: url...where it says that I need to have physical access to the switch (I do), and that I reset the password if I issue a break command and interrupt the boot procedure. I've tried to do that... it gives me the "switch:" prompt, so I think I've interrupted the boot procedure successfully, but, what do I do next?I've successfully done recoveries on Catalyst 2950s, 3550s & 3560s, but the procedure for this one, if I'm reading the link above right, sounds like it's completely different.
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Mar 3, 2013
I just started a evaluation license for IP Base on my 3850 switches. But i can't configure HSRP cause the commands are not there (I rebooted allready). Do you need enterprise for HSRP on the 3850?
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Apr 7, 2013
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Feb 14, 2013
I have two 5508 WLCs. Both have APs attached to them. If I create a guest account with the lobby administrator on one, will that user account be able to log in to the network if the client is attached to the ohter WLC? So far, I have found that I need to create the same user on both WLC's, in order to have the user login.
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Jun 7, 2012
I just started a evaluation license for IP Base on my 3850 switches. But i can't configure HSRP cause the commands are not there (I rebooted allready). Do you need enterprise for HSRP on the 3850?
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May 6, 2013
What is the preferred access switch for new deployment. Choosing between 3850 and 3750x. I have to say that the 3850 wireless features will not be used in this deployment and 4 switch for stack is enough... Looked and read everything that I found in the press, I can not make an informed choice. I bow to 3850, but I was apprehensive following circumstances:1) not too positive reviews2) to long list of open caveats3) to long list of features are not supported in Cisco IOS XE Release 3.2.0SE4) IOS XE : (With regard to the first three points - yes, I understand that the product is new and it has not gone further stage of "childhood diseases" ...Regarding the fourth point - I understand correctly that this is the direction to be moving Cisco Systems and soon all products migrate from classical IOS to IOS XE and so on?
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May 16, 2013
With my brand new Cisco 3850 Switch, I got it configured with a LAN IP. Then, on my PC I opened up Cisco Network Assistant (version 5.8.5.1 which supports the 3850). I went to add the 3850 to the community by discovering the device, and was prompted with the user/pass box. The password I set was not allowing me to connect, and I realized it's because a username was required and I had not set up a username on the switch. So, I then configured an admin user with level 15 privileges on the switch. However, now when in CNA I try to add the 3850 to the community, it doesn't even prompt me for user/pass, it just says "unable to connect".
What do I need to do to add this 3850 to my community?
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