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...
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I have a cisco 2690 switch which sensing heavy packet drop on it. what are the solutions in order to mitigate this issue ??
Resolved! Cisco 2901 FXS Analog Port Card Install
Hi, I’m trying to install a Cisco 2 port FXS card into a Cisco 2901 router. I’ve read the tutorials and understand the router must be unplugged when the card is being installed. My fear, however, is upon reboot will any issues arise. I.e. I’ve read s...
Resolved! Multiple MAC are denied in a single port
Hello everyone. I have some trouble in our network. We have a Small Business Pro ESW-520-48P with some VoIP, Unifi WiFi system (ubiquiti), switch.. All phones are working, but Unifi and switch have problems to get IP from Firewall (Sophos SG210...
Hi, would it be possible to stack up between WS-C3850-P and WS-C3850-12X48U-L? and the image is 3850-P is IP base, and 3850-12X48U is Lan base. we will upgrade with same IOS version.
We serve the object.Out of order WS-C3560X-48T-S s/n FDO1716H09F.It is not guaranteed.Can I restore it?Can you provide technical documentation for self-repair?
Hi Everyone I have a Cisco switch that when powered on gives me a blank screen in teraterm What I have tried so far switched console cables with one that works on another switch verified correct COM port used a lap to with serial converter and wit...
Now that federal government requires us to use scp whenever we upload IOS image file from the computer, not using tftp. I'm using my Mac where the Cisco IOS image stored. This file is in my home directory. So, here I am trying to make it works by usi...
I have a 3925 router It's cooling fans are continue working on Jet mode from 30 days ago. any one can help me?
Hi, I have did the following, - Enable port security feature - Enable port security on the port - Configure 1 secure MAC Address on the port interface Ethernet 2/1 switchport mode access switchport port-security switchport port-security mac...
VTP V3 - VTP VLAN configuration not allowed when device is not the primary server for vlan database?
This would be a simple and easy question if the switch wasn't already configured as the vtp domain master! Switch Ports Model SW Version SW Image ------ ----- ----- ---------- ---------- * 1 24 WS-C2960-24-S 15.0(2)SE10a C2960-LANLITEK9-M cisco-c29...
I have gotten hold of a 2nd hand C3545, with the use in mind to replace my 778Wm and adding more function. But during my first boot, it enters ROMMON upgrade, And fails to boot from it? >Upgrade ROMMON initializedprogram load complete, entry point:...
Resolved! Does Cat3850 support sub-interface.
Does the Cat 3850 support sub interface? As I do not want to use trunking. NY-Switch(config)#interface tenGigabitEthernet 1/1/1.30 ?% Unrecognized command
Hi there one of our SFP cards went offline this morning and trying to see how I can power it back on. 2 Centralized Forwarding Card WS-F6700-CFC SAL1421J7DB 4.1 PwrDown When I try to use the cli command I get this... #hw-module module...
Hello, I don't understand how works broadcast level 3. For example, I have a host 192.168.1.1 /24 and when I ping (through a switch) to 192.168.1.255, all the hosts : 192.168.1.2/ 25, 192.168.1.2/ 26, 192.168.1.2/ 27 respond. In sipte of their broadc...
Resolved! Limit the access on L2 level.
It is a packet tracer lab in which i have a building having Basement ,ground floor 1st floor and 2nd floor. i have 5 vlans in this lab. i configured all trunks between switches and applied inter vlan routing using L3 switch. all is going well all con...
