Non-root bridges associating with each other.

We have a point to multi-point bridge setup with 3 BR1310s. One is set to be a root bridge and the other two are set to be non-root bridges. From past experience (not to mention Cisco documentation) I would expect the 2 non-roots to associate to the root. What is happening is that one of the non-roots associates with the root and the other non-root associates with the first non-root. The good bit is that everything still works, the puzzling bit is why this is happening, the bridges are physically in a V pattern so there's no reason for the second non-root to behave as it is, even if we force it off the first non-root it just jumps right back in there again. Bridges are all running 12.3.4-JA.

Configurations of both non-root bridges attached. I've just found out that the customer has mounted the second non-root bridge in such a way that there is probably no line of site to the root bridge (failing to follow clear instructions!) which explains why we can't get it to associate with the root bridge but doesn't explain how it can associate with the other non-root. The only thing I can think of is that both are "non-root with clients" and the second bridge is being accepted as a client rather than a bridge.

Similar Messages

  • Non-root bridge association problem

    I have an installation using Cisco 1242 Access Points (IOS) as bridges
    in 5Ghz band, and as AP in 2,4 GHz band. Sometimes I get problems
    with the non-root bridges, after mains outage, they will not
    associate to the root bridge. Command "dot11 do 1 carrier busy"
    issued to the non-root bridge helps, but sometimes I have to use it
    several times. Have anybody any idea about possible cause?
    Thanks

    Hi Frank,
    I think I have found the reason of my troubles. It is the following configuration command:
    (interface Dot11Radio1)
    world-mode dot11d country CZ outdoor
    which is not only not-needed on the non-root bridge AP, it prevents associating the non-root bridge to the root-bridge AP. It does not cause the troubles on each root non-root couple. The troubles are more frequent with IOS version 12.3(11)JA or 12.3(8)JEA than with 12.3(8)JA2.
    Regards
    Frantisek Opravil

  • Non-root bridge 1242AG with root 340 bridge series

    I have a configuration with a root bridge 340 series and about 5 non-root bridge 340 series. I want to add a 1242 non root bridge, but the new device can't see the others, and neither the others can see the 1242.
    Is there an issue in connecting these two devices in this configuration?

    Hi, first, thanks for the help.
    Second, this incompatibility is only valid
    for RFC1042 or it is valid for 802.11g?
    Third, If I configure my 1242 as Acess Point, and the 340 series as Client or Brigde_only, they should not talk too?
    Sorry for the bad english...

  • 1242 Root or Non-Root Bridge

    Greetings,
    I have a small network that uses 1242 APs for clients machines. Our wired WAN link can be unreliable, so I would like to configure one of the 1242s as a bridge and connect it to one of the many wireless networks we have in our neighborhood.
    I understand the 1242 APs can also operate in a bridge mode that could allow us to connect our network to one of these other wireless LANs. A couple of questions:
    -Does the remote WLAN have to be a compatible cisco device in order for the 1242 to be able to bridge successfully?
    -Which 'Role in Radio Network' do I choose for our 1242?
    -How do I see what the SSIDs of the remote WLANS are and enter the relevant passwords (WEP, WPA, 802.1x, or WPA2)
    -If this is not possible, what is the right device to use to connect our LAN to a remote WLAN without being able to control the hardware at 'both' ends of the bridge.
    TIA

    Can you please provide me with a network topology of what it is you would like to achieve. If you want the radio interfaces to associate to one another, then it is recommended to have them on the same channel, but for roaming instances, it is recommended that you have then at least 5 channels apart on the g radio so as to avoid any interference.
    The 802.11A radios on the APs would be configured as bridges (one as
    a "root" and the other two as "non-root") and the 802.11G radios
    would service clients. Only one of the APs would require wired
    connectivity in this scenario, as long as all of the APs are
    communicating to each other on the 802.11A side. An important
    consideration is that the 802.11A radios that are configured as "non-
    root bridges" need only to communicate with the 802.11A radio that is
    configured as the "root bridge". It is not necessary for the "non-
    root bridges" to see each other. However, it is imperative that the
    802.11A radio that is configured as the "root bridge" be able to
    communicate with BOTH of the 802.11A "non-root" bridges. Therefore,
    the antennas you choose for the devices is important.

  • 1310 Root Bridge will not Authenticate with 350 Non Root Bridge

    I've exhausted myself solving this issue.
    I have a 1310 set as a root bridge using WEPS. I have a 350 set as a non root bridge/without clients, also using WEPS (they both use the same SSID)
    The 350 will not authenticate to the 1310. After doing a Carrier Busy Test, it is clear the 350 see's the 1310 with signal strengh of 100 percent.
    (I have a test lab setup in my office)
    If I make the 350 the Root Bridge and the 1310 the Non Root, The 1310 will authenticate to the 350.
    I hoping someone else has seen this problem and can enlighten me.
    Thank you.

    I have successfully configured a 1310 Bridge as a Root Bridge and a BR350 Bridge and a Non Root Bridge/with Clients. I also had to force the 1310 to operate at 11MB only.
    As soon as I make the BR350 Bridge a Non Root Bridge/without Clients, the authentication is dropped between the two.
    I was hoping I could transition to the 1310 one unit at a time since I have over a dozen 350's to replace.

  • Root Bridge+Clients with Non-Root Bridge+Clients Howto?

    Hi, i have two 1242AG access points. I would like to setup a bridge between the two to bridge ethernet lan segments, furthermore i would like to be able to connect wireless clients to either of the access points so i can get maximum range.
    I did what i thought was correct, created the first access point a 'root bridge with wireless clients', and assigned the ssid.
    I set the second access point to 'non-root bridge with wireless clients' amd set the same ssid as the first access point.
    I cant even get the root bridge to work, i turn it on, it brings the radio interface up but i cannot connect with my wireless clients, infact i cannot even see the SSID!
    Do i need to 'Set Single Guest Mode SSID' for the radios? What does that command do?
    Any ideas? A link to config example would be much apreciated.
    Thanks,
    Chris

    Hi, first, thanks for the help.
    Second, this incompatibility is only valid
    for RFC1042 or it is valid for 802.11g?
    Third, If I configure my 1242 as Acess Point, and the 340 series as Client or Brigde_only, they should not talk too?
    Sorry for the bad english...

  • Tthe flood filter is in my plugins folder along with the other plugins I have, but not in cc 2014. It's also in Adobe bridge associated with cc 2014, but not in cc 2014 Photoshop. i hope you get this because i forwarded  your info to HCS and now I'm all m

    the flood filter is in my plugins folder along with the other plugins I have, but not in cc 2014. It's also in Adobe bridge associated with cc 2014, but not in cc 2014 Photoshop. i hope you get this because i forwarded  your info to HCS and now I'm all mixed up as to this gets forward.

    Unfortunately, you are not addressing Adobe here in the user forums.
    However, there are many highly experienced volunteer users here willing to help.
    Can you please clarify:  are you saying that your Flood filter (whatever that is) is in your Bridge folder but not in Photoshop?
    UPDATE:  I Googled your Flood Filter and discovered it's not an Adobe filter at all.  Have you contacted its manufacturer, Flaming Pear?  What do they say?

  • 1230AG non-root bridge not associating

    Hello everyone,
    I am new at setting up root and non-root bridges. I am trying to set-up three 1230ag devices.
    One as the root and the othe two as non-root, I copied the config txt from the root and
    copied that into the two I am going to use for the non-root. That way the ssid's are the
    same. When I set the role to non-root the radio is not enabled and I get a message saying
    Interface Dot11Radio0,cannot associate:No Response
    Does any know what I am doing wrong, and how to fix it
    Thanks

    The radio interface will go down in response to being configured as a non-root bridge, so that much is working.  But there must be a configuration error if it won't associate.  Can you post the configs so we can review them?
    Are the bridges mounted, or are they on your desk?

  • 1310 Root with two non-root bridges

    I have a Cisco 1310 root bridge and a 1310 non-root bridge . it worked fine for a year, I then installed one more 1310 as a non-root bridge now I?m seeing both of my non-root bridges dropping offline more and more. I checked my first non-root bridge today and the radio is down and I can?t seem to bring it back up. I have recently upgraded the tar to see if that would fix the problem. This problem started when I added my second non-root bridge. Did I miss some setting or something

    Make sure the spanning tree protocol is disabled on Vlan interfaces

  • 7920 associates to root bridge but not to non-root bridge

    I have 7920s using open authentication with WEP128 cipher. I have two 1300 root AP's (with client support) and three non-root AP's (also client support) in the same lab area. The root AP's and non-Root AP's associate and link to each other no problem. However, the 7920's will only associate with the Root APs. If I power down the root APs, the 7920s show "no AP found". I've verified SSID and WEP128 keys. I've also noted that the root AP does have a channel specified under dot11radio0 but the non-roots do not. Do the 7920's just scan for any channel until it finds an association or do I need to specify a channel in the non-root bridges?
    Thanks,
    Mike.

    With static WEP, the authentication is happening at the AP level. Will want to ensure non-root is associated to a root though otherwise the interface may be in "reset" state.
    The 7920 will look at these 2 as individual APs regardless of channel. Non-roots should have the same channel as the root, otherwise will not be able to communicate.

  • Aironet 1262N - Access Point behind Non-Root Bridge possible?

    Hi,
    I want to connect two buildings. Let's call them Building A (main) and Building B.
    „A“ is the main building and provides a wired LAN to an AAA server (192.168.1.2) and the WAN gateway (192.168.1.1).
    There I placed a 1262N with the IP 192.168.1.3 connected to the wired LAN and configured it as Root-Bridge. Let's call it AP01.
    „B“ is a pretty large building and has a wired LAN from one end to the other end.
    So I placed two 1262N there, each at one end.
    The first 1262N is configured as non-root Bridge (AP02) and connects to the Root Bridge (AP01).
    The IP address of AP02 is 192.168.1.4.
    The second 1262N is configured as Access Point (AP03) and connects to the non-root Bridge (AP02) via the wired LAN.
    The IP adress of AP03 is 192.168.1.5
    My Questions:
    1. Do I need tell AP02 about the AAA Server in Building A or acts AP01 like a AAA Proxy for AP02 because of it Root Bridge functionality?
    2. How Do I tell AP03 that it should use AP02 as a gateway to building A?
    I attached a diagram.

    Hello  Mr. Vogl,
    Thank you for your question.
    However, the Small Business Support Community is limited to Cisco Small Business Products, and the Aironet products are considered as a Enterprise level devices.
    I recommend you to post this question on the on the correct forum, in order to get a better response.
    You can move your post using the Actions panel on the right.
    Best regards,
    Diego Rodriguez
    Cisco Small Business Community Engineer

  • Can one Root Bridge support multiple non-root bridges?

    Hey gang,
    I have a pretty simple question here I think
    I have a wireless bridge currently setup to support a separate office building on our property about 200 yards away from the main building.  The wireless bridge has been working great and was a much cheaper solution when compared to the cost of making a fiber drop to this building.  The needs of our business have changed (go figure), to include a warehouse building also on the backside of the property.  It's not feasible to run a cable between these two building either.  So I need to create another wireless bridge to this back warehouse as well.  My question is can I just use another non-root bridge to link to the root bridge already in place, or does each wireless bridge require one root bridge and one non-root bridge?
    I have good LoS to both buildings from where the current root bridge is, so if two non-root bridges can talk to one root bridge I should be able to just an additional non-root bridge and be good to go.  But if wireless bridges are meant to be a one to one setup, then I'll need to setup an additional root bridge to link to the new non-root bridge?
    It seems like you should be able to have one root bridge link to multiple non-root bridges but I haven't been able to find any clear examples of this being done.
    Thanks in advance for the help!

    That was just too easy.
    I copied the configuration from the working non-root bridge to my laptop.  I changed out the ip address of the BVI interface.  I uploaded the configuration to the new 1300 bridge.  I plugged it in and pointed the yagi antenna in the general direction of the original root bridge and started pinging the new 1300.  Success!
    I'll use my spare 1300 to get service up and running in the warehouse by the end of the week and I'll just need to order one more 1300 to make sure I have spare on hand if needed.
    Thanks again!

  • 1250 802.11N series in root/non-root bridge mode

    Using Yagi's, low loss cable, antenna outside, AP inside.
    When operating autonomous 1250 series in root/non-root bridge mode, can I use 802.11N radios? Is it supported?
    Or would it be better to use 1242's? This is for a customer, no time for testing, need rock solid design, in and out configuration...

    @leolaohoo -
    I was just  asking for a definitive answer, weather its affirmative or negative, is there a benefit to using the 1252 over the 1242 giving the cost of each, since as you said the 802.11N can not be used to bridge, than I would say a 1242 is better fit for the AP bridge of 350', clear line of site over the 1252.

  • Root-Bridge and Non-Root Bridge Support

    I was wondering if the ISR Routers (Cisco 1811w) support the root-bridge and non-root-bridge feature. If not is there another device apart from the 1310 and 1410 bridges that support this feature?
    Thank You,
    VT

    Hi VT,
    The ISR AP supports both of these roles;
    Access Point Link Role Flexibility
    Access Point Link Role Flexibility allows access point radios to operate in a combination of radio roles,
    such as access point root, bridge root (with or without clients), bridge nonroot (with or without clients).
    This provides a more flexible deployment scheme to support the various applications requirement. Note
    that the ISR AP does not support access point repeater and WGB.
    Wireless Non-Root Bridge
    The wireless non-root bridge allows the access point radio to operate as the remote node in a point to
    point or point to multi-point network.
    Wireless Root Bridge
    The wireless root bridge role provides support for both point-to-point or point to multi-point bridging.
    http://www.cisco.com/en/US/docs/ios/12_4/12_4x/release/notes/rn1800xj.html
    Hope this helps!
    Rob

  • Root-bridge non-root bridge security

    Using AP1231, I have a point-to-point configuration with the option "without wireless clients". I have enabled WPA2-PSK/AES-CCMP to the infrastructureSSID/nativeVLAN.
    Does this security automatically apply to the other SSID/VLAN I have configured? Or do I need to configure additional security on the other SSID/VLAN? Please advise. Thanks!

    From your diagram, AP3 is the root bridge because it is connected to ISP, so AP2 will be a repeater, but 1242 can't work both as repeater and AP. So the diagram won't work. you have 3 alternative options:
    1. not let AP2 to connect wireless clients, only configure AP2 as a repeater.
    2. If AP1 can connect to AP3 directly, then configure AP3 as root-bridge with wireless clients, configure both AP1 and AP2 as non-root bridge withe wireless clients.
    3. If AP1 can't connect to AP3 directly, you need to add an additional AP4 to have back-to-back connection with AP2, configure AP1 and AP4 as non-root bridge with wireless clients, configure AP2 and AP3 as root-bridge with wireless clients; ap1 peered with AP2, AP4 peered with AP3, AP2 and AP4 are interconnected by ethernet port.

Maybe you are looking for

  • Hard drive issues due to Time Machine backup? Can't source the problem.

    Last night my computer began to run extremely slow. All apps simultaneously lagged (spinning wheel of death), but then began working again after about 0.5-1 minute. This whole-system crash repeated about every 10 minutes a total of probably 5-6 times

  • Pictures on event are not showing but I know they are there, but where?

    I have uploaded picturesfrom camera to imac.  Deleted pictures from camera.  Then see at the event, and it only shows 15 pictures.  I hit on one and kept moving with arrow to the right to see the rest and found that there are a lot more that DO NOT s

  • Populate the JSP's select box from database on jsp load

    hai all, can any one help me in knowing how to populate the select box of a jsp with data from the database? thanks and regards, ravikiran

  • Just Installed Tiger Can't Connect to Internet

    I just upgraded to Tiger this morning. Ever since when I attemp to connect to my wireless router through airport, my router crashes and resets and all the computers that are connected to it lose the connection. I believe that my airport is somehow ac

  • What patterns for this application???

    We have a large standalone C++ application which we are planning to port into java. Right now we are planning to port only the GUI (front end) part and retain the backend in C++ (Though, in the long long run we might even port the backend part to jav