# PTM

## nv show router ptm

Shows if PTM check link state is on or off. When on, PTM performs additional checks to ensure that routing adjacencies form only on links that have connectivity and that conform to the specification that `ptmd` defines.

### Version History

Introduced in Cumulus Linux 5.3.0

### Example

    cumulus@switch:~$ nv show router ptm
            applied  pending
    ------  -------  -------
    enable  off      off