SNMP indexes on HP J9803A

[gkavrecic]

I'm deploying a HP 1810 switch into the network.

A similar switch (HP V1910) worked out of the box, all required items discovered, triggers worked.
A label content to show port status and some stats:
---

Port 1
PS: {Switch_A:ifOperStatus[GigabitEthernet1/0/1].last(0)}
Rx: {Switch_A:ifInOctets[GigabitEthernet1/0/1].last(0)}
Tx: {Switch_A:ifOutOctets[GigabitEthernet1/0/1].last(0)}

---

Now, we are adding a HP 1810 and having issues with managing it.
The items & triggers are discovered ok, but having issues using indexes.
Each port is indexed as Port: 1 Gigabit - Level

Trying to show a port status returns an error. Label content:
---

Port 1
PS: {Switch_B2:ifOperStatus[Port: 1 Gigabit - Level].last(0)}
Rx: {Switch_B2:ifInOctets[Port: 1 Gigabit - Level].last(0)}
Tx: {Switch_B2:ifOutOctets[Port: 1 Gigabit - Level].last(0)}

---

Might it be a problem with the colon in the index name?
How to overcome this?

[gkavrecic]

Is it possible to access an item by its numerical index?

I've tried:
- ifOperStatus[1].last(0)
- ifOperStatus.1.last(0)
but nothing worked