me too, i had same issue with DCNM ver 10.1.1   how to fixed this problem with SFTP :( ... View more

Hi Dago, i think, you need verify / reconfiguring STP and on all switches. make sure your network having root of the STP.  After you decide on the root switch, set the appropriate variables to designate the switch as the root switch. The only variable that you must set is the bridge priority . If the switch has a bridge priority that is lower than all the other switches, the other switches automatically select the switch as the root switch. Note:  Remember that one root switch is identified per-VLAN You can also issue the set spantree portfast command, on a per-port basis.However, do not  use this command when you have switch-to-switch connection. In this case, the command can result in a loop. based on log spanning-tree details, you have a lot of number the topology changes.STP Path Cost Automatically Changes When a Port Speed/Duplex Is Changed. STP calculates the path cost based on the media speed (bandwidth) of the links between switches and the port cost of each port forwarding frame. Spanning tree selects the root port based on the path cost. The port with the lowest path cost to the root bridge becomes the root port. The root port is always in the forwarding state. If the speed/duplex of the port is changed, spanning tree recalculates the path cost automatically. A change in the path cost can change the spanning tree topology. Recommendation, set manually speed / duplex on each all interface.  for analysis, go to output interpreter tool cisco. put your show tech log before. ... View more

hey buddy,   first try to ping from WLC to your TFTP server. if RTO, disable your firewall windows on your machine (PC/Laptop) ... View more

Hi Dago,   should be ip route-cache enabled on interface vlan 240. for this case if you disable ip route-cache maybe impact to CPU. i had experience with same case before, and then i trying to enable ip route-cache on each interface (by default the services is enabled on interface). why you should enabled "ip route-cache" on interface because on your switch for "ip routing" activated. my assumption, if you want layer 3 services on your switches. Do not disable ip route-cache on each interface.   try this on interface vlan 240 interface Vlan240 ip address X.X.168.253 255.255.255.0 default ip route-cache cef default ip route-cache   ... View more

Go to cisco license page, check your ASA and then put PAK number for requesting activation license. if you didn't have PAK number, you can request demo / evaluation activation key.     check this out : Cisco License   ... View more

Hi   follow this step if wanna use cisco vpn client in windows 10 1. uninstall cisco vpn client software that were previously installed on windows 10 2. uninstall dne updater software that were previously installed on windows 10 3. reboot pc 4. download winfix.exe , and opened the application to ensure dne updater application has been erased 5. close the application after finished and reboot pc 6. donwload Sonic VPN software 32bit or 64bit 7. install Sonic VPN software, and then reboot pc after finished 8. reinstall cisco vpn client, before that you need extract *zip file. opened folder, you can find vpnclient_setup application. 9. after finished, modify registry. windows + R, type regedit.exe HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\CVirtA right click on displayname, modify to change the value "Cisco Systems VPN Adapter" for 32bit or "Cisco Systems VPN Adapter for 64-bit Windows" 64bit   Hopefully this help you :)   ... View more

downgrade IOS 15.0(2)SE7 or upgrade your IOS. work with the TAC on your symptom to understand the root cause of the condition.   same case with this : https://tools.cisco.com/bugsearch/bug/CSCsx29696           ... View more

Hi leo,   thx for response, already check for all physical interface and Vlan interface, zero input error count.   see the attachment, the event on monitoring tools         ... View more

Good news, have a nice day :) dont forget to click answered ... View more

Hi Leo, i think is not bug, i have same situation with that when i trying to hardcode (speed & duplex) on interface both of switches. if the interface using auto is look like a normal. my opinion, if we want to harcode the interface both of switches we need cross-over cable eventhough the switches has auto MDIX or one of switch is auto (speed & duplex). SW1 hardcode < mode trunk  > SW2 harcode (with cross-over cable) up/up SW1 hardcode < mode trunk > SW2 auto (with straight) up/up   ... View more

read this link, i hope this help   http://www.techexams.net/forums/ccnp-voice/62512-problems-adding-subscriber.html ... View more

if there no DNS for all system, make sure the name server as publisher in the CUCM web-gui is IP Address from the screenshoot the publisher hostname is MSIPA482, the subscriber trying to connect the publisher with the hostname by DNS, you need to change the hostname publisher in the IP Address ... View more

hi,   for 2960s if u want to upload new image IOS for the boot loaded verifying like this command boot flash:/old-images/old-image.bin;flash:/new-images/new-image.bin   and then you can delete the old image, verify again the boot loader with this command: boot flash:/new-images/new-image.bin       ... View more