Output drops on Catalyst C9300-48T connected to AP 9120AXI

Hi, we are seeing output drops on switchport connected to 9120AXI access point. No policy-map configured on switchport. Cisco TAC said it is due to microbursts and configured qos softmax multiplier 1200. This has added more buffer to the queues. But ...

"I'm having DHCP issues with my Cisco 867VAE-K9 router. I know it's an

Cisco 867VAE-K9 running IOS 15.2(4)M6.WAN is working correctly:* ADSL2+ Annex M* ATM PVC 1/50* PPPoE (aal5snap + pppoe-client dial-pool-number 1)* Dialer1 receives public IP address* NAT overload works* Internet access from the router works normallyL...

Cisco support is terrible

Cisco support is terrible 

Cisco CEF with GRE Tunnel

Hello!I have a simple LAB:As part of understanding how CEF works, I wanted to see how the FIB and Adjacency Table deal with GRE tunnels. In this case, a simple P2P tunnel using GRE and a FVRF:R1:R2Traffic flows, all good. When I check the FIB on R1 f...

3rd party SFP+ modules identification in Catalyst 9500 switch

From trusted shop we obtained SFP+ modules described as Cisco compatible.Compatible SFP-10G-T-X identifies as SFP+ 10GBASE-SR (sh inventory or sh int transceiver).Compatible SFP-10G-BXD/U-I identifies as SFP+ 10GBASE-LR.Is this going to be a problem?...

RX-SOP Design Considerations for Mixed Handheld and Laptop Environment

Hello everyone, I am currently facing a somewhat complex wireless design challenge in a warehouse environment and would appreciate feedback from the community. Environment The customer requires wireless connectivity for two very different client type...

Isolate VLAN X from other VLANS

Hello Together,we have a Catalyst 9500 Core Switch and I wan to Isolate a specified VLAN (VLAN 5) deny to connect to all other VLAN. Here is a simple configuration and explanation what the result should be.VLAN 2 (Server) 10.1.2.0/24 Gateway VLAN int...

115v or 230v - Which one to choose ?

Hi ,Currently doing a big hardware refresh and PoE requirements are through the roof.Looking at a typical C9350 , the 1600W PSU only delivers 1600W on 230VAC on 115VAC it's 1200W and less efficient. PWR-C2-1600WAC1600W (230V input)1200W (115V input)I...

Beyond the Badges: Meet Marcelo, a Cisco Community Legend

When we look at the Cisco Community, we see a vast network of knowledge. But every network is built by people-individuals who dedicate their time, passion, and expertise to help others succeed. Today, we have the honor of featuring someone who has be...

"No Sandboxes associated with this user" in sandbox

Etherchannel to Etherchannel

I have a Catalyst 5509 and I am unable to ping from one etherchannel connection to another etherchannel connection. I have 2 linux boxes connected to the switch via etherchannel. I can ping the switch from each linux box. I can ping each linux box...

ATA191-MPP firmware 11.2.4 regression (outgoing calls, IPv6 only)

Hello,I'm posting this message to report a software regression that affects the "11.2.4" (ATA19x.11-2-4MPP0001-115) firmware version of the ATA191-MPP.Affected versions and configuration: The issue is encountered when using IPv6 only network for SIP ...

Is TAPI supported on Windows Server 2025

According to the Cisco Unified TAPI Developers Guide for Cisco Unified Communications Manager, Release 15 and SUs, all Windows operating systems support CiscoTAPI.  However when I look at the Supported Windows OS for Cisco TAPI page found here:  http...

Cisco 8000 Series Secure Routers and hsec licence

I'm interested new devices of secure routers have the same policy for getting hsec license to do ipsec performance above than 250m?For example C8151-G2 has ipsec performance 1.5gbps and sdwan 900mbps but strange there is no information how can I get ...

FMC HA Not Forming

Hello !Im not able to resume the synchronization option and HA failed,we are able to ping from FTD to FMC as well and FMC-primary to FMC -secondary, And when i was clicking on resume synchronization pop-up comes with an error.Can anyone help us to re...