Symptom
Serial interface (NIM-1T and NIM-2T module) reports wrong SNMP ID, when pulled from platform and software.
SNMP ID on platform:
BGL14-1.N.14-ISR4300-2#show platform software interface fp active name serial 0/1/0
Name: Serial0/1/0, ID: 8, QFP ID: 9, Schedules: 0
Type: PORT, State: enabled, SNMP ID: 0, MTU: 1500
TX channel ID: 0, RX channel ID: 0, AOM state: created
Flow control ID: 65535
bandwidth: 2000, encap: HDLC
IP Address: 0.0.0.0
IPV6 Address: ::
ICMP Flags: unreachables, redirects, no-info-reply, no-mask-reply
ICMP6 Flags: unreachables, redirects
FRR linkdown ID: 65535
vNet Tag: 0, vNet Extra Information: 0
AOM dependency sanity check: PASS
AOM Obj ID: 32
BGL14-1.N.14-ISR4300-2#show platform software interface fp active name serial 0/1/1
Name: Serial0/1/1, ID: 9, QFP ID: 10, Schedules: 0
Type: PORT, State: disabled, SNMP ID: 0, MTU: 1500
TX channel ID: 0, RX channel ID: 0, AOM state: created
Flow control ID: 65535
bandwidth: 2000, encap: HDLC
IP Address: 0.0.0.0
IPV6 Address: ::
ICMP Flags: unreachables, redirects, no-info-reply, no-mask-reply
ICMP6 Flags: unreachables, redirects
FRR linkdown ID: 65535
vNet Tag: 0, vNet Extra Information: 0
AOM dependency sanity check: PASS
AOM Obj ID: 34
SNMP ID on software:
BGL14-1.N.14-ISR4300-2#sh snmp mib ifmib ifindex serial 0/1/0
Interface = Serial0/1/0, Ifindex = 3
BGL14-1.N.14-ISR4300-2#sh snmp mib ifmib ifindex serial 0/1/1
Interface = Serial0/1/1, Ifindex = 4
Conditions
Install the NIM-1T and NIM-2T module in ISR4321 router.
Further Problem Description
Tested the same module on ISR4431 router, but no issues seen.