This object represents the TTL setting for MPLS echo request
packets originated by the operations configured by the
Auto SAA L3 MPLS VPN.
This object is currently used by echo and pathEcho.
For 'echo' the default TTL will be set to 255.
For 'pathEcho' the default will be set to 30.
Note: This object cannot be set to the value of 0. The
default value of 0 signifies the default TTL values will be
used for 'echo' and 'pathEcho'.