EX9208 devices may report repeated nh_resolve_throttle log messages indicating that next-hop (ARP) resolution requests from specific interfaces are being throttled.

The issue will be seen when the resolution for IPv4/IPv6 address fails.

The following log messages are observed:

[MMM DD HH:MM:SS.xxx LOG: Info] nh_resolve_throttle:1668Next-hop resolution requests from interface 330 throttled

[MMM DD HH:MM:SS.xxx LOG: Info] nh_resolve_throttle:1668Next-hop resolution requests from interface 329 throttled

[MMM DD HH:MM:SS.xxx LOG: Info] nh_resolve_throttle:1668Next-hop resolution requests from interface 330 throttled

[MMM DD HH:MM:SS.xxx LOG: Info] nh_resolve_throttle:1668Next-hop resolution requests from interface 329 throttled

These logs are pointing to the following LAG interfaces:

Logical interface ae1.0 (Index 329) (SNMP ifIndex 785) (Generation 138)
Flags: Up SNMP-Traps 0x24024000 Encapsulation: Ethernet-Bridge
Statistics    Packets    pps     Bytes     bps
Link:
xe-0/3/7.0
xe-4/3/7.0

Logical interface ae5.0 (Index 330) (SNMP ifIndex 854) (Generation 139)
Link:
xe-0/2/0.0

This issue is tracked under PR1927194.

Upgrade the device to a Junos OS release that includes the fix. The issue is resolved in the following releases:

Junos OS

22.3R3-S5
23.2R2-S7
23.4R2-S7-J16
24.2R2-S5
24.4R2-S4
25.2R2-S1
25.4R1-S2
25.4R2
26.1R1
26.2R1

Junos OS Evolved
25.4R2-EVO
26.1R1-EVO
26.2R1-EVO