With the following configuration:
cpo@BR1# show policy route route pppoe-out { description "PPPoE TCPMSS clamping" enable-default-log rule 100 { protocol tcp set { tcp-mss 1448 } tcp { flags SYN } } } cpo@BR1# show interfaces ethernet eth1 pppoe 0 policy route pppoe-out
cpo@BR1# delete policy route [edit] cpo@BR1# commit [ policy route pppoe-out ] rm: cannot remove ‘/var/run/vyatta_policy_ref’: No such file or directory