Cisco Wireless :: 6513 Access Points Keeps On Going Up / Down Port Channels Created Automatically
Oct 12, 2011
I have 6513 which have wism and sup 720 , for some reason the access points keeps on going up and down the port channels created automatically but i cannot see any configuration inside it as shown below .I tried to edit the interfaces and add the trunk configuration but it cannot be modified . [code] the Wism status is showing up but the APs Number regestered keeps on going up and down the version running on the sup 720 is 12.2(33)SXI5 and the wism is installed in slot 9.
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Nov 12, 2012
I have created 5 new 2 Gig port channels on a 6513 WS-X6516A-GBIC blade connecting to 5 4510R+E switches. 3 of the 5 Port-channels show up/up. 2 show down/down. However, for the 2 showing down, a duplicate Po interface was created with an "A" appended to the name that shows up/up. E.g:
Port-channel26 unassigned YES unset down down
Port-channel26A unassigned YES unset up up
Each of the 4510s has a second 2Gig PO to another 6513 with an identical config and all of those come up fine.
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Jan 13, 2013
I am looking into upgrading a customers wireless network and they are looking at using a few 1240 access points for both internal and external connections. Their question is can one access point support both channels simultaneously? They would like to connect an antenna on the inside of the building on the 5ghz channel and another externally on the 2.4ghz channel.
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Nov 6, 2012
We have a vPC cluster of two Nexus 7009 that needs to be connected with a VSS cluster of two Catalyst 6509s. The VSS has been working fine for a while and the vPC cluster is new equipment.
Attached there is a detailed diagram of the connections; the VSS cluster connects the interfaces Ten1/2/8 and Ten 2/2/8 using the PortChannel 28 going to the the vPC cluster to the interfaces Eth 4/18 of each switch.
Both the vPC and the VSS are well configured; last night we tried to brought up the connection between the two clusters but only the first interface comes up within the etherchannel; the secondary one did not come up and shows (not receiving LACP packets).
We know Layer 1 is fine because if we remove the interface from the EtherChannel it does come up; but causes some STP loop and bring the network down; thus the solution is to form a EtherChannel.
At the VSS Clúster we see LACP packets being sent with sh lacp counters but we DO NOT see LACP packets being received in the interface of the secondary Nexus.
Right now, this is not possible to troubleshoot since it is a production enviroment; so I'm looking for problems with the configuration or recommendations to follow in order to apply them tomorrow night during a new maintenance window.
These are the configurations:
#######vPC cluster of Nexus 7009######
--N7K-1--
interface port-channel418
description Uplink 20 GE hacia VSS
switchport
switchport mode trunk(code)
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Mar 10, 2012
We have a pair Cisco 6509 switch in which 2 * 48 Port 1G line cards and 1 * 16 Port 10G line Card, FWSM and Sup 720 are installed.We have Cisco UCS and HP Blade servers.Cisco UCS servers are connected to Cisco 6509 switch using Fabric Interconnect, and HP Servers are directly connected to core switches.Recently the team made many changes in the network. Upgraded the IOS in Cisco 6509 switch, Configured Port profiling , MAC Pinning , HBA Cards to UCS / Nexus 1000V Infrastructure. After this change they lost the connectivity to UCS and HP Serers. Every tower is checking at their end.
The Network Team has reverted back the core switch with old IOS , but still the problem persisit.I could only see the following error log in the core switch. There are two port-channels one between core 1 and core 2. The other is between core switch and FWSM module. [code]
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Dec 26, 2012
We are facing issue with mac address learnt from different port-channels, Connectivity is like 6500 as core running VSS and 4500 access switches are connected to Core and WLC is also connected to Core.WLC to 6500 PO 60 , 4500 to 6500 PO 32.
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Sep 5, 2012
I have a dual-homed fabric (Nexus 2248 dual attached to two Nexus 5020's via vPC). On this Nexus 2248 is a server that has a four port LACP etherchannel. The ports do not appear to be load balancing correctly. The output below shows the four ports in use and it clearly shows port e138/1/10 as getting the most use. When I use the "show port-channel load-balance forwarding-path..." command on either of the vPC switches for various source and destination IP's that use this link, it shows them correctly load-balancing across the four ports. But we do not see this when looking at stats on both the server side and the switch side.
dc5020-3g# sh int e138/1/10,e138/1/12,e138/1/14,e138/1/16 | i seconds
30 seconds input rate 552 bits/sec, 69 bytes/sec, 0 packets/sec
30 seconds output rate 130120 bits/sec, 16265 bytes/sec, 161 packets/sec
Load-Interval #2: 5 minute (300 seconds)
30 seconds input rate 40 bits/sec, 5 bytes/sec, 0 packets/sec
[code]....
**************** Config info below. This is a vPC pair and the port configs are identical on both switches so I'm only showing the configs for one switch to keep it simple.
dc5020-3g# sh port-channel load-balance
Port Channel Load-Balancing Configuration:
System: source-dest-ip
Port Channel Load-Balancing Addresses Used Per-Protocol:
Non-IP: source-dest-mac
IP: source-dest-ip source-dest-mac
[code]....
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Apr 3, 2013
current topology is build from 4 6500 switches connected in a ring topology. Using Port channel (2x 10Gbit) links to connect left side top and bottom 6500's (DC1), 10 G bit link to connect right side 6500's (DC2) In between a 1 G bit link is used to connect top 6500's (DC1-DC2) and the same for bottom 6500's (DC1-DC2).
Path costs are 5 and 6 so the T5/4 from bottom right is blocking. Bandwidth demands are increasing, so thinking about adding extra 1 G bit links to the existing ones and create ether channels. Path costs here are 4 and 5, so T5/4 from bottom right is still blocking, but when the bottom 2 G bit port-channel is loosing one 1 G bit link the path costs of both directions become equal. So I am worried that STP will not re converge and leave me with a congested 1 G bit link. I cannot test this setup in a lab, are there any options for STP to re-converge here?
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Sep 27, 2012
I am having an issue on a Cisco 3750 stack where when the stack master is rebooted, all my lacp port-channels drop and then come back up again. After doing some investigation It seems that it is happening because of lacp using the stack master mac-address as part of the system-id, so when the stack master reboots, the stack mac changes. I see that there is the command: stack-mac persistent timer 0
There is this warning about using this command:
When you configure this feature, a warning message displays the consequences of your configuration. You should use this feature cautiously. Using the old master MAC address elsewhere in the domain could result in lost traffic.
My question are:
Are there any other consequences to using this command (apart from moving the switch/mac to another location in the network)It mentions 'If the entire switch stack reloads, it acquires the MAC address of the master as the stack MAC address' Is this still the case if you have the stack-mac persistent timer to 0? Does using channel-group mode on for the port-channels still use the same mechanism of having a system-id? (Will the channels flap using 'mode on' when rebooting the stack master.
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Dec 16, 2012
I'm having iball laptop with LAN connectivity in Windows XP Service Pack 3. I found out how to create hotspot on laptop and tried it.Everything gone fine, network is showing up in my Ipod Touch too. But even after connecting to this network,I cannot access internet!Then I checked in Network Connections that both LAN & Wireless Connections are connected,but in Wireless Connection when checked in status the packets are sending but not receiving.This is how it shows with the command "ipconfig"....
(C) Copyright 1985-2001 Microsoft Corp.
C:Documents and Settingsadmin>ipconfig
Windows IP Configuration
Ethernet adapter Wireless Network Connection:[code.....]
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May 9, 2012
I am trying to unravel a ASA 5550 config that has been created over several years, by multiple people, some who used ADSM, some who used CLI.
None of them ever removed any lines from the configuration, and none did any documentation. When examining the actual configuration from a CLI perspective:
1. Does an ADSM- created access list end with any specific ADSM- added suffix?
2. When ANY access list is created in an ASA 5550, does it HAVE to be included in the access-group command to be functional? Can it also be functional if referenced in a "nat" command?
3. If the access list does meet either of the criteria specified in question #2, is it completely non-functional?
4. If an access list is applied to a logical or physical port that is shut down, is the access list functional?
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Mar 2, 2011
I have a 3725 routeur configured to receive the PPP/ATM/DSL connexion of our customer. I have found that the routeur has created 1035 virtual-access (1035 is his max) but I only have 85 customer on this router
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May 31, 2011
We have a Cisco ASA5505 here that provides DHCP and routing to all our devices in our network. We also have a few other switches and wireless access points connected directly to the back of the ASA5505.For the past year all the wireless network signals has been working fine however starting last month, none of the wireless access points (we have three WRT54G) would allow proper connection (dropping connection, slow internet).I thought this maybe all THREE wireless access points are toast/bricked. So i went out and bought brand new Netgear WN604 and even with the new WAP i'm having same connectivity issues (really slow internet).When hardwired directly to the switches we get BLAZING fast internet & connectivity, no issues.
I called CISCO TAC and they automatically said "our ASA5505 is fine, it has to be your wireless access points" not working properly. I explained to them that i also purchased two brand new access points and they are doing the samething now, how can that be?
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Apr 9, 2013
I've had some long standing issues that I've tried various things to fix. I have two WAP4410N access points set up at a smaller sister company. Wireless clients (laptops) are not receiving DHCP assigned IP addresses. If I type in an IP manually, it works fine.The sister company has a point to point T-1 connection to our main building. Our main building has the DHCP server. The router on the sister company end is configured as the DHCP relay.
I've upgraded the firmware three different times in the past to hopefully resolve the issue, but no luck. Just today, on one of the WAP4410N's, I upgraded to the 2.0.6.1 firmware (backing up config, reset to factory default, upgraded firmware, reset factory default again, restored config). After the first reset to factory defaults, the Access Point itself picked up a DHCP address from the server, and I verified this in the DHCP console on the server, so I know that the DHCP relay is working. However, my laptop would not get a DHCP address when connecting wirelessly through that access point. It is a Windows 7 Enterprise laptop. I also could not get a DHCP IP with my iPhone connecting to wireless, to rule out specific issues with just a laptop.I have the DHCP lease times for the subnet that these WAP4410Ns are on set to 2 hours.
To put a cherry on top, there is one laptop that stays in a lab area at all times, connecting wirelessly, and it DOES get a DHCP IP address (I can see in the DHCP console that the lease for this laptop continually renews as needed). I do remember on initial config when I couldn't get it to work, that I did a manual set up, gained connection, then switched it to DHCP...but that doesn't work for any other laptop.Why would the access points get DHCP address, but not anything connecting to the Access Points?
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Mar 15, 2012
Using WISM with 7.0.220 and 1240 and 3502 APs. Just found that some of our 3502 AP didn't enbale their clean air and CDP when installed. This only happened on a few new APs. But the area these APs where we seem to have had a few problems with PCs. The only PCs effected where Computer On Wheels (COWs), Dell 780 Desktop with a Cisco Wireless Card.
Using an interl wireless card and others in thes areas worked.Once I enabled the CDP and Clean Air, the COWs worked.My question is with the APs not having CDP enabled, could this affect the cisco wirelss card in the COWs?
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Apr 30, 2013
Yesterday, I configured ASA via CLI for Static PAT and created some entries in an access-list. I will be testing that setup this evening.
However on a quick double check of the settings on the device via ASDM I could not see the acess-list settings. I searched every tab and found nothing so I PuTTYed into the device and checked the running config. The rules I created were right there. Is this something I should expect? If so doesn't it defeat the point of having a GUI if it does not show a complete running config?
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Sep 22, 2012
I'm trying to upload a new software image (~86mb) from my PC to the WiSM2 controller on a 6513 chassis.
Midway through the transfer, the transfer stopped and I got this error on the log:
*TransferTask: Jan 01 00:28:33.124: %UPDATE-3-FTP_TRANSFER_FAIL: updcode.c:4508 Error FTP file Transfer [ftp_get], <28>, No space left on device.
How to access the memory on the wism to delete the old boot image?
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Aug 30, 2012
At my school we have a lot of access points, but sometimes the computer use the wrong access point. How can I solve that? Is there a program for switching access point?
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Nov 10, 2011
BTW the halls are next to each other.The house and the 3 halls are in the vicinity however not attached together(i.e. wall to wall). The distance between the house and the first hall is approx 1 road width distance.ISP is Virgin and the internet was installed this year hence has the latest Virgin Home Hub.I am aware that i probably require 3 wireless access points (1 for each hall).The first wireless access point will need to be connected with a RJ-45 cable running from Home Hub. Can i connect the Wireless access points up together or do they all need to come from the ADSL hub?I am not sure what Wireless access points would be best and how to go about connecting this all up
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Jul 5, 2012
I have New Pace 4111n Wireless Router that I got from AT&T and is setup on 1st floor, but its wireless range does not get me to 2nd floor. I also have the 2Wire wireless router from AT&T. In Addition, I have ethernet connection from level 1 to level 2 as well.
I was wondering if it is possible to have the Pace Wireless N router to work as modem and wireless access point, at the time use the 2Wire router to broadcast wireless and act as access point for 2nd floor.
IF its doable, how should the two be configured and connected.
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Oct 29, 2012
we have a chassis 6513-E and a module WS-X6748-GE-TX, I'd like to know if could I put this module in any slot, since the documentation from Cisco says that any slot from a chassis 6500-E Series can support this module. And then in the documentation of WS-X6748-GE-TX says that this module is not compatible in the slots 1-8 of the 6513 chassis, only from 9th to 13th slots, in those slots from the 6513-E we already have 4x WS-X6748-GE-TX, and we'd like to know if could we put the module in the rest of the slots. The 6513, and 6513-E is kind of confusing.
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Feb 24, 2012
We have 2 6513's that are linked via 2 10 gig interfaces, using an LACP channel.I received an alert this aft stating that the far 6513 was unreachable and the port channel int PO3 had gone down, the 2 10 gig interfaces had also gone down on either side. 5 mins later PO3 had resestablished itself and has been fine since. [code]
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Jun 17, 2012
I am trying to deploy several AIR-CAP3502E-E-K9 access points from a cisco 5508 wire lan contoller running ver 7 code. However iam having difficulty registering the access points with the WLC. The wlc is connect to a 3650 switch, and each access point is connected to a 2960 switch. A bad update was not allowing the access points to get their correct firmware.
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Aug 9, 2012
I am having an issue here. I have 2x 5508 that each have 100 AP license and a little under 200 access points. Basically all of the access points are using DNS to connect to the primary controller that has the DNS entry. Basically half of my access points need to be on the second controller and in order to do this I have been using the high availability mode of each access point to push them to the second controller IP address.It was working perfectly until now. I have pushed 28 access points to the second controller and the last two I need to push at this location just keep resetting on the primary controller. Neither controller is configured as master controller.
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Nov 18, 2012
I need an Wireless Access Point.Two SSID simultaneously in different IP Rangeit is with a simple browser GUI to manage? (not console and controller)a distance of about 50 (we can place multiple APs)N speedDual BandWhich series meets the above requirements?It can also Wireless-N Gigabit Router as 4400N, but it does not support Dual Band.
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Jan 17, 2013
I have access points deployed across several buildings that each have a different IP scheme and their own T1 line. Is it possible to configure the 5508 controller to allow these access points to use the IP scheme assigned for that particular building or will dhcp always assign an IP address to the connecting client based on the IP scheme of the building that the controller resides in?
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Jul 13, 2011
I need an official document from Cisco saying the APs models supported by the WLC 5508. Specially, I need to know if the AIR-AP1242AG-T-K9, converted from standalone, will be supported by the 5508.
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May 1, 2013
We have a couple of Access Points which are not registering with WLC 2500. I followed-up on the two LAPs in the dorm. They were cycling through red, amber, green, indicating they were trying to join the controller but could not.
Recently, we have changed our IP Schema for the Wireless Devices and I believe there is an IP Conflict between APs and WLC. Earlier APs were cofigured with Static IP Address assignment, thus they can't change their IP Address.
how to reset the Access Point? I know we can hard reset them by pressing the Mode button manually.
Is there another way via which this can be done witout removing the Access Points from their enclosures?
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Feb 10, 2013
I have multiple cisco 1130ag access point at one of my clients villa. The issue I am facing is when moving throughout the buildingthe laptop and smartphones will not switch between AP’s unless it loses its connection with its existing AP then it will see the other AP that is closer and connect to it.
For example, I start at one end of the building where it connects to AP#1 , if I then slowly go to another section of the villa, it it will not switch over to AP#2 until the signal is lost from AP1
I have following settings
AP's are Cisco 1130AG
Single SSID with WEP Security
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Jun 20, 2012
install AP1042N access points?
Situation: I have a store where there is already installed an AP1042N. In the back of the building there is no wireless signal. I want to install a second access point to extend my range;
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Apr 6, 2012
At home, I use my laptop to connect to my wireless router without any trouble.But at: public libraries, Starbucks, hotel rooms... any free public wifi? All attempts to connect meets with the same error: "unable to connect to network" (preceded by the system hanging for a lengthy amount of time). Windows advises me to unplug the router and plug it back in, which obviously isn't an option.It's annoying to troubleshoot, because I'm only having the problem at times where I have no wired access (hence: no way to get to forums like these and look for an answer, update drivers, whatever).
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Jan 18, 2012
Ask this question, if someone came across a 6513, one of the RJ45 ports are constantly falling.The question is how to disable logging on a specific portno logging event link-status does not work.
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Jul 4, 2012
How to create loopback cable for gig copper port (cisco 6513).I
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