XGS2210-28 V4.50(AAZJ.0): VLAN configuration via console broken?

Veit

Hello!

We need assistance for configuring VLANs via console:

Enabling VLAN TX tagging does not work for us when using the console, while it works well using the web interface.

Example:

Interfaces 21-24 shall be configured for VLAN tagging. They are already configured for frame-type tagged:

...

interface port-channel 21
  name Tagged1
  pvid 10
  ingress-check
  frame-type tagged
  green-ethernet auto-power-down
  green-ethernet short-reach
exit
interface port-channel 22
  name Tagged2
  pvid 10
  ingress-check
  frame-type tagged
  green-ethernet auto-power-down
  green-ethernet short-reach
exit
interface port-channel 23
  name Tagged3
  pvid 10
  ingress-check
  frame-type tagged
  green-ethernet auto-power-down
  green-ethernet short-reach
exit
interface port-channel 24
  name Tagged4
  pvid 10
  ingress-check
  frame-type tagged
  green-ethernet auto-power-down
  green-ethernet short-reach
exit
...

But when I try to remove those ports from the untagged list in the VLANs, the changes are ignored:

$ ssh admin@coreswitch25
admin@coreswitch25's password:
Copyright (c) 1994 - 2017 Zyxel Communications Corp.
coreswitch25# show vlan 20
  802.1Q VLAN ID : 20
  Name         :LAN
  Status      : Static
  Elapsed Time   :    0:40:28
 
  Port Information Mode
  ---------------- ----
     1             Untagged
     2             Untagged
    19             Untagged
    20             Untagged
    21             Untagged
    22             Untagged
    23             Untagged
    24             Untagged
    25             Tagged
    26             Tagged
    27             Tagged
    28             Tagged
  
Default Gateway : xxx.xxx.xxx.xxx
coreswitch25# config
coreswitch25(config)# vlan 20
coreswitch25(config-vlan)# untagged 1-20
coreswitch25(config-vlan)# exit
coreswitch25(config)# exit
coreswitch25# show vlan 20
  802.1Q VLAN ID : 20
  Name         :LAN
  Status      : Static
  Elapsed Time   :    0:41:12
 
  Port Information Mode
  ---------------- ----
     1             Untagged
     2             Untagged
    19             Untagged
    20             Untagged
    21             Untagged
    22             Untagged
    23             Untagged
    24             Untagged
    25             Tagged
    26             Tagged
    27             Tagged
    28             Tagged
 
Default Gateway : xxx.xxx.xxx.xxx
coreswitch25# exit

When I edit VLAN 10 in the web interface and check the "TX Tagging" box for interfaces 21-24, and compare downloaded config files before and after this edit, a diff shows that this one and exact change has been made and nothing else:

Before:

...

vlan 20
  name LAN
  normal ""
  fixed 1-2,19-28
  forbidden 3-18
  untagged 1-24
exit

...

After:

...

vlan 20
  name LAN
  normal ""
  fixed 1-2,19-28
  forbidden 3-18
  untagged 1-20
exit

...

Also downloading the config, changing the untagged list, and re-uploading the config, does the trick successfully.

Am I missing something or did I hit a firmware bug?

Also I am quite confident that this problem did not exist in FW 4.40.

Best regards,

// Veit

Veit

I am sorry, I just realised that a new untagged line will not replace the old one, so I need to use no untagged to remove ports from the list instead.

Zyxel_Derrick

Hi @Veit

Welcome to Zyxel Community
The "frame-type tagged " means the port can receive the tagged packet only
It does not mean the port is tagged or untagged
If you want to check the port is tagged or untagged, you have to check "show vlan"
If you want to change the port is tagged or untagged, you have to type
Configure> VLAN (number) > untagged/no untagged (port number) then you can change it. 
Therefore, according to your reply, it seems like the problem has been solved.
Is there any other support you need?

Sincerely, 
Zyxel_Derrick

Veit

I am sorry, I just realised that a new untagged line will not replace the old one, so I need to use no untagged to remove ports from the list instead.

Zyxel_Derrick

Hi @Veit

Welcome to Zyxel Community
The "frame-type tagged " means the port can receive the tagged packet only
It does not mean the port is tagged or untagged
If you want to check the port is tagged or untagged, you have to check "show vlan"
If you want to change the port is tagged or untagged, you have to type
Configure> VLAN (number) > untagged/no untagged (port number) then you can change it. 
Therefore, according to your reply, it seems like the problem has been solved.
Is there any other support you need?

Sincerely, 
Zyxel_Derrick

Veit

No, thank you, my problem is solved.