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Connecting 2 JGS524Ev2 Smart Switches over single cable - with mirror port to work across both units
Hello. I have 2 JGS524Ev2 switches on separate floors, with 1 cable.
I also have this unit: https://www.dualcomm.com/collections/network-tap/products/gigabit-copper-network-tap, which sits bet...
Please read this thread. This will not work since the switch does not support RSPAN.
RSPAN allows you to monitor traffic from source ports distributed over multiple switches, which means that you can centralize your network capture devices.
Do you need a mirror port on the floor 0 switch _or_ the ability to get the tap device located on floor 1 from floor 0 as shown on your network layout? Still confusing information.
Create a 802.1q VLAN, e.g. VLAN ID 5 on both switches,
add the VLAN 5 to two ports used for the trunk (the connection betwwen the switches) as tagged,
define the two ports (for the tap and for the sniffer) for VLAN ID 5 untagged, PVID 5.
Now you have an independant VLAN for connecting the tap and the sniffer - almost like a dedicated cable.
Apologies for any confusion. Let me try again ...
Floor 0, I have a sniffer, and a mirror set up, and it works perfectly.
Floor 1, I have data that I want to get to the sniffer on Floor 0, so that data can be examined by the sniffer on floor 0.
Floor 0 works perfectly. Mirror set up, works fine. Sniffer set up, works fine. Uplink to internet works fine.
Floor 1, same - everything is fine (can access floor 0 without issue). Trying to get data to sniffer on floor 0 is the problem.
Does that help clarify?
Becuase the data is a FULL COPY of all network traffic (between wifi & cable modem), I need to isolate it, so only sniffer can see it, otherwise I get all sorts of CRC errors becuase other devices are trying to respond to it.
So, can I send a copy of all data from floor 1, to floor 0 for sniffer (via mirror port on floor 0) to inspect, without disturbing anything else?
I only have 1 cable between both routers (between floors).
Thank you.
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