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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
  • 5628 Views
  • 29 replies
  • 1 Helpful votes

I have a Cisco IE 4010 running MST connected to cisco IE 9320 running PVST connected via a single port. IE 9320 has a priority 24576 and IE 4010 has a priority 32768. Since they are running different mode of STP, that trunk port is getting blocked on...

grapevine by Level 5
  • 29 Views
  • 4 replies
  • 0 Helpful votes

Would need your kind advice here for recommended firmware upgrade version and upgrade path for the following switchesCiscoC6807-XL (M8572) — Current Version: 15.2(1)SY1aCisco WS-C3850-48P — Current Version: 03.07.04ECisco WS-C3560CG-8PC-S — Current V...

Hello Cisco Community,I am experiencing a repeating issue with a stack of two Cisco Catalyst C1300-24XTS switches, used in a production network. Approximately once a month, stack of  switches suddenly becomes unresponsive and freezes completely. The ...

tomas22 by Community Member
  • 4747 Views
  • 32 replies
  • 0 Helpful votes

Hello,We have currently 2 WLC 5520 connected on a Catalyst 3850 stack, via port-channels, and mode on (no lacp).We will replace our Catalyst 3850 stack with 2x Nexus C9K-C93360YC-FX2, I've configured a port-channel with mode on, and a vpc for the red...

Clem58 by Level 6
  • 190 Views
  • 5 replies
  • 0 Helpful votes

Hello everybody,I know that native Vlan is configured on Trunk links and switch does not add Vlan ID to a frame going to or coming from a native Vlan. I also know it is used for compatibility with devices which do not support Vlan tagging. My questio...

Hello everyone i see logs on the switch.%SYS-2-MALLOCFAIL: Memory allocation of 395648 bytes failed from 0x1AE504, alignment%Error on initialize VLAN database 1: VTP feature not yet initialized[OK]googled this issue, found memory is low, how to solv ...

Mlex1 by Spotlight
  • 527 Views
  • 9 replies
  • 0 Helpful votes

Hello All,I have a query if I may.We have recently procured few 9350-hx switches. We have several 9300-48u and 9300-uxm in production. We tried stacking the new 9350s as we have 9300s stacked. But it would not work as in the stack members wont show c...

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