Ruijie RG-S2900G-E Series, Configuration Manual

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Configuration Guide System Management Display Configuration
Parameter Description
lower
The memory resources are severely insufficient. One
route protocol will auto-exit and release the memory if
the lower watermark has been reached. For the details,
see the memory-lack exit-policy command.
low
The memory resources are insufficient. The route
protocol will be in OVERFLOW state if the low watermark
has been reached. In the overflow state, the routers do
not learn new routes any more. The commands are not
allowed to be executed when the memory lacks.
high
A plenty of memory resources. Each route protocol
attempts to restore the state from OVERFLOW to
normal.
3. System total memory, current free memory and used rate.