Frame-Relay DE setting

Purpose of the exercice is to set the DE bit of a frame-relay packet depending on the length. 2 solutions depending on constraints :

1) If it's for all dlci of a given interface, you could use a Service-Policy :

class-map match-all DE1024
match packet length min 1024
!
policy-map DE1024
class DE1024
set fr-de
!
interface Serial0/0
service-policy output DE1024

2) If it's for a specific dlci, you could use the de-list command :

frame-relay de-list 1 protocol ip gt 1024
!
interface Serial0/0
frame-relay de-group 1 501

To check, connect on the other side router :

R2#sh frame-relay pvc 105

PVC Statistics for interface Serial0/0 (Frame Relay DTE)

DLCI = 105, DLCI USAGE = LOCAL, PVC STATUS = STATIC, INTERFACE = Serial0/0.2

input pkts 25 output pkts 25 in bytes 13600
out bytes 13600 dropped pkts 0 in pkts dropped 0
out pkts dropped 0 out bytes dropped 0
in FECN pkts 0 in BECN pkts 0 out FECN pkts 0
out BECN pkts 0 in DE pkts 7 out DE pkts 0
out bcast pkts 0 out bcast bytes 0
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
pvc create time 00:49:33, last time pvc status changed 00:35:02