Hi,
thanks for the quick reply. Do you think a static entry on any vlan for
the router mac will overwrite any dynamically learned (same) mac from a
different vlan?
Thanks!
Am 22.08.2016 um 12:04 schrieb Sebastian Wiesinger:
* Jeff <jeff.mey...@gmx.net> [2016-08-22 10:45]:
Hello,
does anyone know if the EX4550 has a real "per VLAN" mac table? I am asking
because we recently saw the router MAC changing from the switches uplink to
the customer's downlink in his vlan, most likely caused by a loop of some
kind. According to
show ethernet-switching table
The location of the mac changed on the customer's vlan only but we had
global effects that reached every customer not only on that switch but on
other switches in the same hierarchy and below as well and many, many
storm-control messages in the devices. So it looks like although the switch
RE shows a per-vlan mac table, it actually uses a kind of "least recently
learned" algorithm globally as long as the mac is identical.
Hi,
a specific MAC table entry is VLAN specific but a loop will wreck
havoc on all customers on the switch, as the table itself is global
and aging-out / learning happens globally. In case of a loop entries
will age out and be relearned continously which will impact everybody.
Regards
Sebastian
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