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...
would like to get some information regarding CVE-2025-20334. I have a Catalyst 9200L switch running IOS-XE version 17.15.03, and I want to check whether this specific device is vulnerable to this security flaw
Over the weekend I upgraded a C9300-48UXM to 17.15.05. This switch is running Network Essentials license and does not have DHCP helpers, DHCP Snooping, or device tracking enabled. It is a downstream Layer 2 switch with a port-channel to a layer 3 tha...
Hi,Hsa anyone succeeded making the CVR-QSFP28-SFP25G= work with a catalyst 9500 32C and a 25G SFP (LR or SR) ?We need a remote connection via fiber, the breakout cable doesn't help here.. Needless to say that we need 25G and not 10GThe box is running...
Is anyone else seeing this type of issue:Endpoints woke from sleep still operating at 10 Mbps instead of 1 Gbps.The devices generated very large numbers of 802.3x pause frames.A single port consumed up to 96% of a shared ASIC buffer pool.Other interf...
Hello,On my switch Catalyst 9300 48-port PoE+ // C9300-48P-A // IOS 17.3.4, I am experiencing the following symptoms:After several years of normal operation, the switch suddenly stopped working during the night yesterday.Upon arriving on site, I obse...
Hi ,Just saw minutes ago this new menu :Creating a Network Group requires a MCG/CG. I couldn't find the documentation yet , so I'm not sure what is the purpose of this menu.
I have read various posts about this in the Cisco support community but was wondering f anyone knows if only Rockwell can support these switches directly and do they have a similar TAC service providing support for Stratix 8000 switches ( re-badged C...
Hi everyone, I am experiencing a frustrating interface flapping issue between a Cisco Catalyst 9606R switch pair and a Palo Alto PA-3430 firewall, and I would appreciate any insights or advice from the community. Network Topology & Environment: Switc...
I have built a City Wide RadWin point to multi point wireless network to connect our facilities and equipment back to City Hall.Our Water Tanks are the central locations for each sector and connect to the Phillips Building then fiber to City Hall.We ...
I'm trying to set up a new C1300-12XT-2X switch. This is going into a small rack in my homelab. I have configured the device with a static IP address on my management VLAN (VLAN 10), however I can only access the management web interface when I als...
Hi all,I have two switch.Switch 1 is a standalone switch with two TenGig ports as 1 port-channel (ports ten1/1/1 and ten1/1/8). Switch 2 is a stacked switch with two TenGig port as 1 port-channel (ports ten1/1/1 and ten2/1/1).When I run show xfsu eli...
I have a weird situation that I am hoping someone can help me with. I have a HPE array that has fiber ports to upline to the data switches. The interesting thing is that the uplinks won't connect with the 10Gg ports on a Cisco Catalyst 9300, but if ...
So IOS XE 17.18.2 is now listed as the latest stable release for Catalyst switches in the firmware upgrade portal on Meraki dashboard. What's odd is that the older 17.15.4.1 is listed as a stable release candidate. I'd love to understand if 17.18.2 i...
I bought a Cisco Catalyst switch from a hamfest (amateur radio swap meet) and am trying to get it working. I am a retired software engineer and am just looking to get this working. I can connect to it through a serial conection and can run some ini...
Hello,I am confused about what OCG says about RSTP convergence.OCG says RSTP puts the alternate port into root role and forwarding state immediately.But then it also says the learning state is also used in RSTP.There seems a bit of a contradiction b...
