<div>
<div class="content wysiwyg-content">
Good day.<br />
<br />
I have 2x 3COM superstack with fiber link connected between the stacks and I had to reset them to factory default. &nbsp;Both models for fiber are 4228G and now the traffic cannot pass from one to another. &nbsp;I understood there was 3 VLANs configured before from another tech but obviously, the links kept on going up and down randomly, therefore explaining why I have decided to reset to factory default.<br />
<br />
What I really want to do is have the Switch act as 2x L2 Dumb switch with the least amount of software from 3COM. &nbsp;My logic was to do a reset to factory default on both....However, now there is no communication going on between the stacks. &nbsp;There is no ports that are tagged and I want everything to run on VLAN 1(default) because the DHCP is on the same subnet. &nbsp;What must I do to have those 2 fiber link appear as on the same subnet.<br />
<br />
Thank you in advance.<br />

</div>
</div>


Good day.

I have 2x 3COM superstack with fiber link connected between the stacks and I had to reset them to factory default.  Both models for fiber are 4228G and now the traffic cannot pass from one to another.  I understood there was 3 VLANs configured before from another tech but obviously, the links kept on going up and down randomly, therefore explaining why I have decided to reset to factory default.

What I really want to do is have the Switch act as 2x L2 Dumb switch with the least amount of software from 3COM.  My logic was to do a reset to factory default on both....However, now there is no communication going on between the stacks.  There is no ports that are tagged and I want everything to run on VLAN 1(default) because the DHCP is on the same subnet.  What must I do to have those 2 fiber link appear as on the same subnet.

Thank you in advance.


DHCP Problem with 3Com SuperStack with Fiber - No UDP 67 broadcast on fiber

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 of the Open Systems Interconnection (OSI) Reference Model and therefore support any packet protocol. LANs that use switches to join segments are called switched LANs or, in the case of Ethernet networks, switched Ethernet LANs. A hub is a connection point for devices in a network. Hubs are commonly used to connect segments of a LAN. A hub contains multiple ports; when a packet arrives at one port, it is copied to the other ports so that all segments of the LAN can see all packets.