Use the following CLI syntax to configure PPP parameters for TDM DS3/E3 ports or DS3 channels.
port port-id
tdm
ds3
encap-type ppp-auto
mode network
ppp
keepalive time-interval [dropcount drop-count]
no keepalive
e3
encap-type ppp-auto
mode network
ppp
keepalive time-interval [dropcount drop-count]
no keepalive