New Always-On DevNet Sandbox for Cisco Catalyst 8000 & Catalyst 9000

Introducing the new Catalyst 8000 and 9000 Always-On sandbox labs. DevNet technical leader Joseph Kearns explains how to gain access to the these environments and how they can be useful for simple automation use cases. Key Takeaways Always-On Labs...

CBS350-24P-4G Switch Not Working

Dear Sir,I have Cisco CBS350-24P-4G POE Switch its not power showing so please help me out in warranty replacement. 

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...

咨询下Firepower 2110 ASA 9.16(3) anyconnect同时配置两条不同配置的VPN

公网IP就一个 ，咨询一下怎么同时配置两条VPN上去，查了好久没查到怎么弄配一条新的上去老的没了，麻烦大神帮忙指导一下

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...

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 

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...

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 ...