Note: The allocation of the desirable SRGB will depend upon the availability of the desirable pool. If there is any conflict or any protocol is already using any label/pool of labels which is falling between SRGB range, SRGB will not be allocated and an error will be prompted.

Note: You cannot configure a SRGB for an IGP instance which is outside globally configured SRGB (or default SRGB if SRGB is not configured). An error will be returned if you configure segment-routing mpls and try to use a block outside the globally configured SRGB (default range is 16000-23999).

Note: You cannot remove a globally configured SRGB if any IGP instance has SRGB configured locally and being used.

Note: You can modify SRGB only if the newly configured SRGB range does not affect any IGP instance having local SRGB configuration. A newly configured SRGB must include an IGP configured SRGB range.

Note: If you have not configured SRGB inside an IGP instance and has segment-routing mpls configuration configured, any change in global SRGB configuration will take into effect at IGP instance level only after the user toggles segment-routing mpls configuration.

Note: The maximum allowed block size for SRGB is 262143 (25% of complete label pool).