SNMP ifTable.ifEntry RB1100 x2H

Hello,

I I have several routers 1100x2H, and I develop an application using SNMP to monitor the various interfaces.
And I want to know how ethernet interfaces are numbered in the SNMP table ifTable.ifEntry.
Does rename the interface change the order ?
Some time i have

.iso.org.dod.internet.mgmt.mib-2.interfaces.ifTable.ifEntry.ifDescr.1 = STRING: eth12
.iso.org.dod.internet.mgmt.mib-2.interfaces.ifTable.ifEntry.ifDescr.2 = STRING: eth13
.iso.org.dod.internet.mgmt.mib-2.interfaces.ifTable.ifEntry.ifDescr.3 = STRING: WAN01
.iso.org.dod.internet.mgmt.mib-2.interfaces.ifTable.ifEntry.ifDescr.4 = STRING: WAN02
.iso.org.dod.internet.mgmt.mib-2.interfaces.ifTable.ifEntry.ifDescr.5 = STRING: WAN03
.iso.org.dod.internet.mgmt.mib-2.interfaces.ifTable.ifEntry.ifDescr.6 = STRING: WAN04
.iso.org.dod.internet.mgmt.mib-2.interfaces.ifTable.ifEntry.ifDescr.7 = STRING: WAN05
.iso.org.dod.internet.mgmt.mib-2.interfaces.ifTable.ifEntry.ifDescr.8 = STRING: WAN06
.iso.org.dod.internet.mgmt.mib-2.interfaces.ifTable.ifEntry.ifDescr.9 = STRING: WAN07
.iso.org.dod.internet.mgmt.mib-2.interfaces.ifTable.ifEntry.ifDescr.10 = STRING: WAN08
.iso.org.dod.internet.mgmt.mib-2.interfaces.ifTable.ifEntry.ifDescr.11 = STRING: WAN09
.iso.org.dod.internet.mgmt.mib-2.interfaces.ifTable.ifEntry.ifDescr.12 = STRING: WAN10
.iso.org.dod.internet.mgmt.mib-2.interfaces.ifTable.ifEntry.ifDescr.13 = STRING: eth11

sometimes :

.iso.org.dod.internet.mgmt.mib-2.interfaces.ifTable.ifEntry.ifDescr.1 = STRING: WAN06
.iso.org.dod.internet.mgmt.mib-2.interfaces.ifTable.ifEntry.ifDescr.2 = STRING: eth12
.iso.org.dod.internet.mgmt.mib-2.interfaces.ifTable.ifEntry.ifDescr.3 = STRING: eth13
.iso.org.dod.internet.mgmt.mib-2.interfaces.ifTable.ifEntry.ifDescr.4 = STRING: WAN01
.iso.org.dod.internet.mgmt.mib-2.interfaces.ifTable.ifEntry.ifDescr.5 = STRING: WAN02
.iso.org.dod.internet.mgmt.mib-2.interfaces.ifTable.ifEntry.ifDescr.6 = STRING: WAN03
.iso.org.dod.internet.mgmt.mib-2.interfaces.ifTable.ifEntry.ifDescr.7 = STRING: WAN04
.iso.org.dod.internet.mgmt.mib-2.interfaces.ifTable.ifEntry.ifDescr.8 = STRING: WAN05
.iso.org.dod.internet.mgmt.mib-2.interfaces.ifTable.ifEntry.ifDescr.9 = STRING: WAN07
.iso.org.dod.internet.mgmt.mib-2.interfaces.ifTable.ifEntry.ifDescr.10 = STRING: WAN08
.iso.org.dod.internet.mgmt.mib-2.interfaces.ifTable.ifEntry.ifDescr.11 = STRING: WAN09
.iso.org.dod.internet.mgmt.mib-2.interfaces.ifTable.ifEntry.ifDescr.12 = STRING: WAN10
.iso.org.dod.internet.mgmt.mib-2.interfaces.ifTable.ifEntry.ifDescr.13 = STRING: eth11

It is not very predictive if I want to automate my SNMP console

regards

JF

I forgot to mention that eth12 is Ethernet Port 12, WAN1 is Ethernet 1 and so on.

Regarrds

Hello

No body can tell me how ifTable.ifEntry is created?

Thank you