Setting the LSDB overload bit
ISIS-SPB sets the overload bit in LSPs to notify its neighbors that it is experiencing an LSDB error condition and cannot forward traffic correctly. During path calculation, ISIS-SPB does not choose a path as the shortest path if the path includes the device that has the overload bit set.
You can set the LSDB overload bit when the device cannot record complete topology data in the LSDB for memory insufficiency or any other problems.
To set the LSDB overload bit:
Step | Command | Remarks |
|---|---|---|
1. Enter system view. | system-view | N/A |
2. Enter SPBM view. | spbm | N/A |
3. Set the LSDB overload bit. | set-overload [ on-startup [ [ start-from-nbr system-id [ timeout1 [ nbr-timeout ] ] ] | timeout2 ] ] | By default, ISIS-SPB does not set the LSDB overload bit. |