IE4320-28P 路由表达上限异常

设备上通过display ip routing-table summary看有900多条剩余，display ip routing-table statistics也能看到只用了100条路由左右。

但是设备的display log一直在反复提示路由表不足，是什么原因？

display ip routing-table summary

Max ECMP: 1

Max Active Route: 1024

Remain Active Route: 925

<S12-SW08>display ip routing-table statistics

Total prefixes: 99      Active prefixes: 99

Proto      Routes      Active      Added       Deleted

DIRECT     73          73          73          0

STATIC     26          26          26          0

RIP        0           0           0           0

OSPF       0           0           0           0

IS-IS      0           0           0           0

LISP       0           0           0           0

BGP        0           0           0           0

Total      99          99          99          0

display log

%Sep 19 20:07:46:710 2026 S12-SW08 RESMON/4/RESMON_MINOR: -Resource=ipv4route-Total=1000-Used=870-Free=130; Free resource decreased to or below minor threshold 20%.

%Sep 19 20:08:16:710 2026 S12-SW08 RESMON/5/RESMON_MINOR_RECOVERY: -Resource=ipv4route-Total=1000-Used=754-Free=246; Free resource increased above minor threshold 20%.

%Sep 19 20:08:46:710 2026 S12-SW08 RESMON/3/RESMON_SEVERE: -Resource=ipv4route-Total=1000-Used=905-Free=95; Free resource decreased to or below severe threshold 10%.

%Sep 19 20:09:16:710 2026 S12-SW08 RESMON/5/RESMON_MINOR_RECOVERY: -Resource=ipv4route-Total=1000-Used=651-Free=349; Free resource increased above minor threshold 20%.

%Sep 19 20:10:16:711 2026 S12-SW08 RESMON/3/RESMON_SEVERE: -Resource=ipv4route-Total=1000-Used=973-Free=27; Free resource decreased to or below severe threshold 10%.