06-01-2012 11:34 AM
I have an SA520 with firmware 2.1.72 it is generating a VLAN on port 1 with 192.168.75.x DHCP enabled
a second vlan on port 2 with 10.40.1.x no DHCP
I have an SG300 with firmware 1.1.2.0
With a VLAN on ports 1-16 that will have the 192.168.75.x network and a VLAN with ports 17-24 |
that will have the 10.40.1.x network .
If I plug in port 1 in the SA 520 to port 1 on the SG300 it works great
or
If I plug in port 2 in the SA 520 to port 17 on the SG300 it works great
but if I plug in both at the same time. the SG 300 wigs out and will not route for anyone.
is there a setting on either the SA 520 or the SG 300 that will let me work with this setup?
06-01-2012 12:09 PM
More information
ports 1 and 17 on the SG300 are trunk
all other ports are general untagged
vlan 1 has all ports in vlan 2 as excluded
vlan 2 has all ports in vlan 1 as excluded
06-29-2012 06:06 PM
Hello David, the spanning-tree function is likely trashing out the SA500. Assuming the spanning-tree is operating on the SG 300 switch, one of the ports should get shut down as soon as it detects the redundant link on the same vlan.
If the SA500 is locking up or "wigging out" it sounds like the STP is disabled on the Sg 300 and it is broadcast looping, likely consuming all the SA500 memory and making it crash.
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