SG550x port question

[RussMcIntire]

I am sure this is an easy answer but I can't really find an explanation anywhere.

We have 2 SG550x-42mp in stack mode as a ring. They are up and running and all is well. I have ports 1-48 on both switches in access mode (VLAN 2) and 49-50 in trunk mode carrying all VLAN's. Port 51 & 52 are used for the stack mode.

VLAN 1 is shutdown as we don't use it.

In the Gui, all ports show assigned as above

When I SSH into the stack and do a show VLAN, under VLAN 1 I see no tagged ports, and the following in the untagged ports column:

te1/0/1-4, DV
te2/0/1-4,
gi3/0/1-48,
te3/0/1-4,
gi4/0/1-48,
te4/0/1-4,
gi5/0/1-48,
te5/0/1-4,
gi6/0/1-48,
te6/0/1-4,
gi7/0/1-48,
te7/0/1-4,
gi8/0/1-48,
te8/0/1-4,Po1-32

gi1/0/1-48,
gi2/0/1-48

Since I only have 2 switches, I figured I would just see the following since we only have 2 switches in the stack:

VLAN 2 untagged ports

gi1/0/1-48,
gi2/0/1-48

VLAN 2 Tagged Ports

te1/0/1-4,
te2/0/1-4,

I don't understand the entries for the other port identifications on VLAN 1 such as:

gi3/0/2-48,
te3/0/1-4,

Since we only have 2 switches.

See attachment for results of show VLAN command

Can someone clear up the confusion?

[Martin Aleksandrov]

Hi,

Can you please execute show stack, show stack configuration and show stack links details commands and share?

Regards,

Martin

[RussMcIntire]

Config attached.

BTW, even though I have both stack ports cabled, it shows chain topology and not ring.

[Martin Aleksandrov]

Hello,

At first sight, everything looks fine for the stak configuration and the other VLANs following the syntax for interface names in stacking mode:
{<port-type>[ ][<unit-number>/]<slot-number>/<port-number>} |{port-channel | po | }[ ]<port-channel-number> |{tunnel | tu}[ ]<tunnel-number> | vlan[ ]<vlan-id>  where "unit-number" is the Unit in stack

We will check with the corresponding team if there is an exception for the port identification in a stack when the default VLAN1 is shut down and will get back to you. 

Regards,

Martin