SG500X-48 forwards traffic on all ports

[Wire Man]

Hello to everybody!

I have a problem with my SG500 which I do not understand: It is forwarding all traffic to all ports. So for

me it looks like it behaves like a hub.

Can anybody please help me?

I have a SG500X-48 with firmware version 1.2.0.97 which is in "standalone" mode with this configuration:

switch8d3012#sh run
voice vlan oui-table add 0001e3 Siemens_AG_phone________
voice vlan oui-table add 00036b Cisco_phone_____________
voice vlan oui-table add 00096e Avaya___________________
voice vlan oui-table add 000fe2 H3C_Aolynk______________
voice vlan oui-table add 0060b9 Philips_and_NEC_AG_phone
voice vlan oui-table add 00d01e Pingtel_phone___________
voice vlan oui-table add 00e075 Polycom/Veritel_phone___
voice vlan oui-table add 00e0bb 3Com_phone______________
no ip routing
bonjour interface range vlan 1
hostname switch8d3012
management access-list XXX-ADM
permit gigabitethernet1/48
exit
management access-class XXX-ADM
passwords aging 0
username cisco password encrypted *** privi
lege 15
no snmp-server server
snmp-server location RZ1
clock timezone " " 1
!
interface vlan 1
 no ip address dhcp
!
interface gigabitethernet1/48
 ip address 10.1.2.5 255.255.255.0
!
switch8d3012#
switch8d3012#

[Brandon Svec]

Hi, can you explain what you have connected to your switch and how you know this is happening? 

http://en.wikipedia.org/wiki/Unicast_flood

[Aleksandra Dargiel]

Hi Wire Man,

By the way those switches are now on 1.4 firmware and yours is still 1.2 so would suugest you to start with upgrade.

Regards,

Aleksandra