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During a setup of my new cores (2 x 3850 XS switches) running IOS XE 16.6.1 in VSS mode due to an unknown reason one of my switches keeps rebooting after switch election with the following message :Waiting for 120 seconds for other switches to boot##...
Currently we are building our new network and after a successful test off site we are now experiencing the following behavior we are not able to explain.Situation :We have 2 Cisco Nexus 56128P (running 7.1(1)N1(1) ) switches as our core layer, via t...
I am currently investigating an issue which I find rather difficult to "catch" and find information about.We are running a DMVPN environment based on 2951 HUB routers & 1941 Spoke routers all over the globe (20 locations).HUB routers are connected on...
Currently running all my 3750X's on Ios 15.0.2 SE2, all switches are in a minimum of a 2 member stack and a maximum of 6 members.We are running in all sorts of issues lately.High CPU due to the Auth Manager.Not being able to use port security (will r...
Hi All,I've got an issue which has also been discussed on March 2008, and than marked as an ignorable error (as in will be solved in new IOS release)Currently more than 5 years later I am also having this issue on one of my switches. Here are the fac...
So for future reference if any ony finds this .. here is the sollution to get your switch out of the boot loop :
in bootloader mode enter :
Switch: set
you will see outout like below (values may vary)
switch: set
...
The mode button does not work other than getting the bootloader prompt. (that's how I was able to do the recover procedures) I could try to downgrade it to a 3 version, is that what you are suggesting ? RMA is a final resort, so hoping for a "soft" s...
Problem is solved, root cause was due to the fact that Jumbo frames where not implemented correctly on the Cisco Nexus 56128P core switches.After adding :policy-map type network-qos jumboclass type network-qos class-defaultmtu 9216system qosservice-...
the last output is from another access switch than the first output I posted, and has a full 255 reliability. besides that it's a new building all fibers are brand new and tested ok just a few weeks ago.And how can one explain a layer one issue bein...
I am sure it's not a layer one issue, as soon as I remove the uplink to my "old" network or even just block all VLANS on the uplink trunk to the old network everything is fine
So we might have an issue on this switch on this uplink but we have like I...
