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Switches / Hubs

A switch is a device that filters and forwards packets of data between LAN segments. Switches operate at the data link layer or the network layer o...

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Network Architect and EE TA

Over 15 years' experience in enterprise network design and implementation focused on routing, switching, Wi-Fi and Cisco ISE.

Troubleshooting Solution

Cisco 3850...Using rear panel SFP slots for firewall fiber connection

1

We have a Cisco C3850-48P main switch that we need to keep for at least 1.5 more years. It works

Troubleshooting Solution

Review and Suggestions Needed for  Guest Network Setup

7

Hello Everyone,

We currently have a guest network. Pretty standard fare - Cisco WLAN controller, open

Troubleshooting Solution

Cisco ISE Guest Web Auth Redirection Not Working

10

Hello

We are currently working on setting up a guest internet service on Cisco ISE and WLC with a

Troubleshooting Solution

cisco switch network routing problem from one network to another

byDan
2

I have a routing problem.  I have a cisco 3850, 2x stacked as one, as my core swithces (sw4-core).

I

Troubleshooting Solution

why does my Cisco switch show multiple APs on the same switchport?

byDan
5
I have Cisco catalyst IOS switch that shows me that I have 2 or 3 sophos APs on the same switchport,…
Troubleshooting Solution

SMS Gateway Integration not working with Cisco ISE

9

We are currently deploying Guest Wireless using Cisco ISE for managing Guest Access through a

Troubleshooting Solution

Trunk between Cisco switches keeps going up/down

2

Cisco 4500X (SVI Management 10.4.100.2/24) to 3850 (10.4.100.3) SVI keeps going down.  This link has

Advice Solution

Migrating from Cisco Sg300-28P Managed Switch to Cisco Sge2010P 48P POE

1

I have a Cisco Sg300-28P Managed Switch and I want to upgrade to the Cisco Sge2010P 48-Port Gbps POE

Advice Solution

Configure SVL on Cisco Catalyst 9606 Chassis with Dual Supervisors

10

Hello,


We got two Cisco Catalyst 9606 chassis as LAN CORE, and each of them has two supervisor

Troubleshooting Solution

HP Switch SNTP settings

8

Hi


We have recently had some NTP issues on our windows DCs.


I've just checked a switch and see its

Troubleshooting Solution

Deploying 9800-CL Virtual WLC

5

We are planning for Cisco 9800-CL virtual WLC controller deployment with 300+ APs.

I would like to

Troubleshooting Solution

Updating firmware for tp-link TL-SG1024D network switch

4

Hi all,


We have a network switch, the tp-link TL-SG1024D, which we are looking to update the firmware

Troubleshooting Solution

Network Design for Campus Network and Server Farm

24

The proposed network design has 3,000+ users. It's our new big building with 13 floors.


It has been

Advice Solution

802.1x and MAB Fallback with ISE

10

Hello


Need use some guidance on how to set the priorities and timers for this specific flow and what

Advice Solution

WLC 9800 and ISE Software versions

2

Which version of WLC 9800 and Cisco ISE is found to stable at the moment?


Any specific

Troubleshooting Solution

How does one configure an ntop docker to receive sflows?

2

What is the proper way to integrate the required ntopng commands form this page:


Troubleshooting Solution

cisco core switch blocking packets or not passing packets?

byDan
38

Cisco core switch 3850 not passing dhcp traffic to my firewall.


I have a cisco 3850 switch, stacked

Troubleshooting Solution

DNA Center Cluster IP Addressing

11

Hello

We are setting up the DNAC Cluster. As far as I know this is how IP addressing goes


  1. CIMC Port
Advice Solution

Cisco WLC 9800 Deployment: FlexConnect or Centralized Tunnel Mode

5

We are deploying Cisco WLC 9800 with 600 Access Points (APs), and there are no remote sites

Advice Solution

Design Consideration Cisco Catalyst 9800

15

We are having Cisco 9800-40 WLC which has 4 x 1/10G SFP+ ports out of which 2 I would use as LAG

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