RB1100AH ports name via Terminal, SNMP and Physical

Hello,
I in process to create Zabbix template for RB110AH, but i bit confused with ports name:
ROS 5.18

In this case to monitor Eth1 physical port I should poll ether1-lan (1.3.6.1.2.1.2.2.1.2.3)
Why Eth1 is not 1.3.6.1.2.1.2.2.1.2.1 ?

Can someone provide me its print ?

/interface ethernet print

Thanks.

RB1200 - ROS 5.11

 0    ether10
 1    ether9
 2    ether7
 3    ether8
 4    ether6
 5 R  ether5                 Eth5
 6    ether4
 7    ether3-wan-backup
 8    ether2-wan-primary
 9    ether1-lan

# after reset
 0    ether10      Eth10    ifDescr.1
 1    ether9       Eth9     ifDescr.2
 2    ether7       Eth7     ifDescr.3
 3    ether8       Eth8     ifDescr.4
 4    ether6       Eth6     ifDescr.5 
 5 R  ether5       Eth5     ifDescr.6
 6    ether4       Eth4     ifDescr.7 
 7    ether3       Eth3     ifDescr.8
 8    ether2       Eth2     ifDescr.9
 9    ether1       Eth1     ifDescr.10

RB433UAH

0 R ether1-wan-primary  Eth1
1 R ether2-lan          Eth2
2 X ether3-empty        Eth3

Here all is ok!

RB800

iso.3.6.1.2.1.2.2.1.2.1 = STRING: "ether3"
iso.3.6.1.2.1.2.2.1.2.2 = STRING: "ether1"
iso.3.6.1.2.1.2.2.1.2.3 = STRING: "ether2"

RB600 and RB600A will have the same order as RB800