About haggittmark@tm-america.com

haggittmark@tm-america.com · 08-15-2022

We name VLANs and then assign them to trunks with 'allowed VLAN'. This seems to work. On occasion, a client on a different VLAN than the DHCP server does not obtain an IP address. So, I tried to create a VLAN interface for a named VLAN and added an i...

haggittmark@tm-america.com · 08-12-2022

Hello,About 18 months ago, we stopped using VTP and switched to assigning 'allowed VLAN' to individual interfaces. Everything has been working well. At that time, the contractor had me turn off VTP on the core switch (default gateway) and leave VTP...

haggittmark@tm-america.com · 11-05-2020

Our environment is a manufacturing floor. Currently our access points are almost 40ft in the air with 2dB antennas. I have read that Cisco recommends a height of 20-25ft with omnidirectional antennas for our environment. We have purchased a set of...

haggittmark@tm-america.com · 10-15-2020

We are a manufacturer, so we have PLCs that do much multicasting. Sometimes a PLC message doesn't get to a computer or database in time. I believe we are having timeouts. I have many VLANs for different hardware or usage types, but I don't think t...

haggittmark@tm-america.com · 09-29-2020

I was wondering if my understanding of the network ieads below are correct or off base, so that I my better explain things to may boss. Tweak QoS – give priority to different protocols – requires expertize Types of VLANS – There are VLANS that aren’...

haggittmark@tm-america.com · 10-17-2022

We ended up doing all the things Paul Driver suggested and there were some improvements. We had to hire someone to help us. Below are Paul's suggestions:"Few things you can do before you think about applying any QOS design (if you dont already hav...

haggittmark@tm-america.com · 08-16-2022

Thank you Elliot, Reza, and MHM for providing helpful information. My boss would like me to move on from this post now.Thank you all community!

haggittmark@tm-america.com · 08-16-2022

Thanks for the confirmation that the ip helper-address has no impact without a subnet defined on the VLAN interface.When i do define a subnet to the VLAN interface, clients become less responsive.

haggittmark@tm-america.com · 08-15-2022

I think I stumbled across a band-aid for the immediate issue. The band-aid is creating a VLAN interface for the named VLAN without assigning a subnet address and then adding the ip helper-address. However, I am not 100% sure because I don't have en...

haggittmark@tm-america.com · 08-15-2022

Before the 'improvements' we were informed by a contractor installing an OT network for engineering that our network was creating too much traffic and causing miscommunication on the OT network. So, we hired a company to come in and troubleshoot ou...

Member Since	‎08-19-2015 10:35 AM
Date Last Visited	‎12-22-2022 01:38 PM
Posts	142
Total Helpful Votes Received	20

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Creating a VLAN interface impairs connectivity on named VLAN?

Way to forward DHCP requests w/o an 'ip helper-address'?

WiFi Antenna Placement

VLAN Segmentation

Are these ideas about traffic flow incorrect?

Re: VLAN Segmentation

Re: Way to forward DHCP requests w/o an 'ip helper-address'?

Re: Creating a VLAN interface impairs connectivity on named VLAN?

Re: Creating a VLAN interface impairs connectivity on named VLAN?

Re: Way to forward DHCP requests w/o Cisco VTP 'ip helper-address'?