Hello, Cisco Community!I’m really happy to share that I’ll be hosting the Cisco Community Lab Series, a brand-new hands-on learning journey designed to help you build practical networking skills step by step.Every Thursday at 8 PM EST, I’ll post a ne...
Forum Posts
upgraded a bunch of switches to the latest recommended IOS version of c2960x-universalk9-mz.152-7.E9bin and out of 4000 switches upgraded, 20 are reporting faulty POE ports with the below errors, in most cases there is nothing plugged in to these por...
Hello guys, many thanks for help from you. Quick question, if we have this in config: line vty 0exec-timeout 5 0password somenthinlogging synchronousloginlength 0line vty 1 4exec-timeout 5 0password somenthinlogging synchronousloginline vty 5 15exe...
Would be possible to connect C9200L-48L-4X (C9200L - access switch) to C9500-16X using SFP-H10GB-CU3M cable DAC? I have this doubt because SFP-H10GB-CU3M is a passive twinax cable...
We have 9404 switch with code 17.06.05It has two Supervisor in slots 2 and 3.Slot 2 - 2/0/1, 2/0/2 and Slot 3 - 3/0/1, 3/0/2 are 1 gig fiber ports.All 4 ports are in same port channel and going to upstream switch A and B where they are also in same p...
Resolved! LACP issues between C9300 and C9200
Hello all,i have a problems with setting up LACP between 2 x C9300X-48TX in stack and 2x C9200 in stack. On 9300 i have C9300X-NM-8Y.on 9200 we haveint Te1/1/1 and Te2/1/1chanell-group 1 mode activePo1switchport mode trunkswitcport trunk allowed vlan...
Hello everyone , Please can someone help me with my issue acI'm experiencing a recurring issue with my C9200CX-12T-2X2G switch. Every 2–3 days, the switch unexpectedly reboots and enters ROMMON mode. When I try to access the flash from ROMMON, I rece...
I work at an enterprise level network and wish to upgrade the version of a switch C9200L-48P-4G with Gibraltar version cat9k_lite_iosxe_npe.16.12.03a.SPA.bin. This version is vulnerable to Cisco IOS Software Command Authorization Bypass (cisco-sa-aaa...
Hi All, While I find IOS XR to be very powerful and flexible, especially with the RPL, I have found a few things that appear to be missing, which are completely possible under the classic IOS... For example, performing OSPF route filtering based on t...
Our core switch handles all our VLAN interfaces and you can telnet to the switch using any one of the VLAN interface IP addresses. I would like to lock this down so that you can only access the core switch using the management VLAN interface IP addre...
Resolved! Switching Tcam
Hello everyone i see this log on my stack switch 3750g, how i should solve this problem thanks in advance %HARDWARE-1-TCAM_ERROR: Found error in HQATM TCAM Space and not able to recover the error show platform tcam usage==============================...
Hi all,I'm working on EVE-NG and need to configure CEs (see attached diagram).My CEs are Cisco routers running Cisco IOS Software, IOSv Software (VIOS-ADVENTERPRISEK9-M), Version 15.6(2)T.I notice that it is:- impossible to create and configure VLANs...
Resolved! Need Help resetting 3650
Needing a little help here please. I have inherited a C3650-48PQ switch that was running as a core switch. I am trying to clear configs on it and initialize it as a standalone switch in a lab environment.So far I have been able to remove vlan.dat and...
We have a 3850 at a remote site that has been working for quite some time. The uplink back to the central site is a 4 port SFP module with a single LC fiber cable and a GLC-SX-MM SFP module. Yesterday and today, the uplink port went down/down and the...
Good day everyone!I recently acquired a C3560CX and I updated the firmware(.bin) via cli but my browser management page is a flat looking, old school static html page.The command below got my web management to look a little better but it's sort of br...
Resolved! Cisco Serial Number Lookups
Is there a way to look up a serial number or assembly number and have it can tell me the date that it was manufactured or even maybe even purchased? I am trying to do with with 3750gs, 4506, 3550, and some line cards. Any help would be greated apprec...
