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Hi All,
I'm doing some self-guided Wireshark training on Udemy in order to better understand and troubleshoot my network. One of the topics today was retransmission, which I see a lot of in my captures and something I haven't been able to understand...
I have a question I'm hoping somebody can explain in layman's terms for me regarding the inner workings of line rate speeds.
I've attached a very basic drawing of an example camera network. A PoE camera connects via Ethernet to a local switch at 1 G...
I recently replaced the core switch at one of my sites that consisted of two separate C9300-48Ts and three other off brand switches and installed a new stack with a C9300X-48HX, C9300-24S and a C9300-48T (running 17.12.5). This is a layer 2 network c...
I recently got an IEM-16P expansion module for an IE-3300-8P2S and cannot get it to pass POE. I've tried the expansion module on two separate 3300 base switches with the same result.
With a 48VDC 480W power supply I can power an IE-3300-8P2S with an...
As the title states, I'm reaching out to the community to hopefully learn more regarding CCTV network best practices and/or lessons learned.
First question is in regards to VLANs. The previous network engineer segmented and organized the network by ...
.pcap attached as a .zip, thanks for the idea. Hopefully this provides more insight.
Finding the reason for the retransmission is ultimately what I'm trying to find. I hear what you're saying about the app specific hardware like the cameras but I do...
The more I thought about this, I agree that there shouldn't be an MTU size issue. There are no notes from the camera manufacturer (Axis) or Video Management System (Milestone) that would indicate these settings need to be altered. @Joseph W. Doherty ...
@Joseph W Doherty Thanks for the response. I'm curious to hear more of what you think after you're able to view the screenshots. I did change the MTU size from one of the cameras and didn't see a change in the capture output which seems to validate y...
