Hi Airwolf,
I have several switchs with untagged on uplink ports and running fine. An example...
************************************************************************************************************
SWITCH (1)
SW_Arriba_CPD012# show cdp neighbors detail
Port : 23
Device ID : 00 18 71 90 9c c0
Address Type : IP
Address : 10.128.24.244
Platform : ProCurve J4903A Switch 2824, revision I.10.77, ROM I.08....
Capability : Switch
Device Port : 24
Version : ProCurve J4903A Switch 2824, revision I.10.77, ROM I.08....
vlan 1
name "DEFAULT_VLAN"
untagged 9
no ip address
no untagged 1-8,10-24
exit
vlan 2
name "DATOSARCHIVO"
untagged 1-8,13,18,23-24
ip address 10.128.24.174 255.255.255.128
exit
vlan 3
name "VOZ ARCHIVO"
untagged 10
no ip address
tagged 11-20,23
voice
exit
SWITCH (2)
SW_Archivo_Anexo# sh cdp neighbors detail
Port : 24
Device ID : 00 17 08 ad 15 40
Address Type : IP
Address : 10.128.24.174
Platform : ProCurve J4903A Switch 2824, revision I.10.77, ROM I.08....
Capability : Switch
Device Port : 23
Version : ProCurve J4903A Switch 2824, revision I.10.77, ROM I.08....
vlan 1
name "DEFAULT_VLAN"
no ip address
no untagged 1-24
exit
vlan 2
name "DATOSARCHIVO"
untagged 1-24
ip address 10.128.24.244 255.255.255.128
exit
vlan 3
name "VOZ ARCHIVO"
tagged 23-24
exit
************************************************************************************************************
In both switches the uplink PORT is untagged. On Switch(1) port 24 untagged on VLAN2 and on Switch(2) port 23 untagged on the same VLAN2.... What's the problem?
SW_Arriba_CPD012# sh uptime
0279:22:34:28.67
SW_Archivo_Anexo# sh uptime
0279:22:39:23.88
Greetings....