What Do the Parameters in the set-overload Command Mean?

Hello,

set-overload [ on-startup [ timeout1 | start-from-nbrsystem-id [ timeout2 [ timeout1 ] ] ] ] [ allow { interlevel | external } * ]

on-startup: indicates that the overload bit remains set within a specified period (in seconds) when a device is restarted or faulty.

timeout1: specifies the period during which the overload bit remains set after the system is started. The default value is 600s.

start-from-nbrsystem-id: specifies the period during which the overload bit remains set according to the status of a specified neighbor.

timeout2 [ timeout1 ]: sets the period during which the overload bit remains set, which is relevant to the neighbor status.
If the specified neighbor does not go Up before timeout1 expires, the overload bit of the system remains set over a period specified by timeout1. In this case, the default value of timeout1 is 1200 seconds.

If the specified neighbor goes Up before timeout1 expires, the overload bit of the system will be set over a period equal to the value of timeout2. The default value of timeout2 is 600 seconds.

allow: allows advertising IP prefixes. By default, advertising IP prefixes is not allowed when the system enters the Overload state.

interlevel: allows advertising the IP prefixes learned from IS-IS devices of different levels.

external: allows advertising the IP prefixes learned from other protocols.

Hope to help you!