Hello, Cisco Community!I’m really happy to share that I’ll be hosting the Cisco Community Lab Series, a brand-new hands-on learning journey designed to help you build practical networking skills step by step.Every Thursday at 8 PM EST, I’ll post a ne...
Forum Posts
Does the "sh inventory" command show the power supply that come out as bad in the "sh environment all" command?
Is the CISCO switch N2K-C2248TP-1GE able to auto-negotiation at 100mbps ? From cisco documentation I found: https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus5000/sw/release/notes/Rel_5_0_2_N1_1/Nexus5000_Release_Notes_5_0_2_N2_1a.ht...
Hi, We have a building alarm panel with a network adapter, this is connected to a 3750E switch. It was working just fine and now suddenly we can't connect to it. Ping fails and an arp lookup returns 'incomplete', adding a static arp entry also ma...
how to back up router configuration and os ?
Resolved! NAT and PPP DSL
I have an issue regarding how PPP with a CenturyLink DSL modem in bridge mode. I have two sites with the same essential setup and both are using overload NAT to provide internet to the LAN. My goal is to have IPSEC GRE tunnels between sites but i hav...
Hi, I'am newbie here, Actually I have 3 switches (2) 3550 and (1) 3500XL 3524. all switches are working fine and have trunk established with each other. but on 3500XL 3524 switch #sho interfaces trunk command not executes. I don't know why.I have c...
Hello, we have some bad network design in that we have two overlapping subnets: 192.168.2.160/29 and 192.168.2.0/24. However, it still works for us because of the mac address-table on our WS-C4500X. For instance, traffic arrives with a destination of...
I am using a Cisco RV042G dual-WAN router with V4.2.3.07 firmware as a gateway and firewall provided by two VDSL 80 Mbps WAN links. The router is set to load-balance mode and I have set up a number of bindings so that secure protocols such as SSH ar...
Resolved! CATALYST 3850 24XS
Hi everyone, I recently bought a catalyst switch 3850 24XS all fiber and support SFP+ modules 1/10G. Can I combine both 1G SFP cooper and 10G SFP+ fiber on the same switch? Thank you for your help. Danny
Just like CEF w/ ECMP, we used to be able to see which port is used in a port-channel, when we supply a specific source-destination IP pair.//3750pghcenturylink2#test etherchannel load-balance interface port-channel 1 ip 1.1.1.1 2.2.2.2 Would select ...
Hello, I have a router Cisco 886VA with following configuration: Cisco IOS Software, C800 Software (C800-UNIVERSALK9-M), Version 15.3(3)M6, RELEASE SOFTWARE (fc1) Technical Support: http://www.cisco.com/techsupport Copyright (c) 1986-2015 by Cisc...
Hello friends, Can anyone help me about that issue? I haven't found the support to FabricPath technology on Cisco Nexus 9300-EX Series switches. Can I deploy a topology with Cisco Nexus 7000 at upper layer and the Cisco Nexus 9300-FX at the acces...
In trunking of vlans how is traffic seperated to diffrent vlans ? based on mac address ?
Resolved! Serial link vs fastethernet
Serial link or fastethernet which has large bandwidth ? why do we use serial connection for wan links ?
Resolved! PVID
Hello, I want to ask about the PVID , what is it ? , how it is work by details ? and how to configure it in cisco switch 2960x with version 15.2.6e ? in configuration guide of 2960x ihave read the following topic but i don't understand the techni...
