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Welcome to the Cisco Community Ask Me Anything conversation. Submit your questions from Monday, February 2, 2026, through Friday, February 20, 2026. Our colleagues Amruta Navadagi, Anaya Kalawat, and Mohammad Mehtabuddin will be waiting to assist you...

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amnavada by Cisco Employee
  • 1876 Views
  • 29 replies
  • 1 Helpful votes

I have this Cisco Cat4507R, with two Sup V - WS-X4516-10GE My question is if I can use the CVR-x2-sfp v02 that my client has purchased to be able to connect some 10GB SR SFPs. I would like to know if there is a command that I should apply for this si...

Hi folks. I'm trying to upgrade my C9500 that is in VSS to IOS image Cat9k_iosxe.17.03.04.SPA.bin in install mode. when i issue the command "install add file flash:Cat9k_iosxe.17.03.04.SPA.bin activate ISSU commit. It fails to perform the upgrade. I ...

philasam79 by Level 1
  • 43192 Views
  • 29 replies
  • 1 Helpful votes

Hi,The enterprise recently bought several Cisco 9200L-48P-4X.I installed them and configured them. The enterprise is using them as layer 2 (no ip routing...etc).Regarding licenses; do I have anything to do? Do I have to register them or use CLSU etc?...

CSSTIC by Frequent Visitor
  • 1247 Views
  • 3 replies
  • 0 Helpful votes

 Hy folks,We have the following planned: 4x a Cisco Business CBS350-24XS Managed Switch | 24 10G SFP+ ports | 4x10GE shared (CBS350-24XS-EU) The problem is, we need a speed of 10GB for the connection between host and switch over Ethernet.Can we do t...

Stefan K by Community Member
  • 842 Views
  • 4 replies
  • 0 Helpful votes

I had a vulnerable scan done and our switches are showing a diffe 1024 key that needs to be replaced/updated. I am fairly new to cisco and unsure what commands I need to run. I triedenableconfigure terminalcrypto key zeroize rsacrypto key generate rs...

Hi all!I have some SFPs from RAD, MIRIC-E3. I try to config in a cisco switch but i get this message:05:55:16: %GBIC_SECURITY_CRYPT-4-VN_DATA_CRC_ERROR: GBIC in port Gi0/23 has badcrc05:55:16: %PM-4-ERR_DISABLE: gbic-invalid error detected on Gi0/23,...

david.sua by Level 4
  • 22972 Views
  • 4 replies
  • 0 Helpful votes

hello, i have a NAT failover configured on my 1942 router. (The config file is attached to this post). Main link is ISP1 and secondary link is ISP2. The secondary link is connected to one of the EHWIC switchports at the back of the 1942 router. The c...

buzzhani1 by Level 2
  • 67075 Views
  • 9 replies
  • 0 Helpful votes

Hey there guys.Im kinda new using packet tracer and i've been having classes for a degree on networking.I've got to do a project in packet tracer but i'm having problems pinging between VLANS.I have vlan 2 3 and 4 I've configured the the etherchannel...

NABS93 by Community Member
  • 1895 Views
  • 2 replies
  • 0 Helpful votes

hi all,how do you reset the above switch as theres no physical reset button, so i imagine its all done via command lineis it this write erase reload System configuration has been modified. Save? [yes/no]: n Proceed with reload? [confirm]y delete f...

Trying to understand port channel and Channel Groups.  Does it matter that the Port Channel and Channel Group on the main switch is one number ie. 208 and the Port Channel and Channel Group on the uplinked switch are different ie. 8.  I thought that ...

glinskim by Frequent Visitor
  • 1533 Views
  • 5 replies
  • 0 Helpful votes