Consider the following scenario:
Not sure if the ASCII art will come out.
PPPoATM PPPoFR
7200 NP-G1 PA-A6---------------------------FRF.8---------------------------WIC-1T 2811
Nested service policies are applied at both ends. The top tier policy shape and
the second tier policy does CBWFQ.
policy-map 256-256
class all-traffic
shape average 256000
service-policy 256a
!
policy-map 1984a
class rt-voice-out
drop
class rt-video-out
drop
class citrix-out
bandwidth 64
random-detect
class srb-out
bandwidth 1408
random-detect
class qwic-out
bandwidth 128
random-detect
class normal-out
bandwidth 256
random-detect
class itops-out
bandwidth 64
random-detect
class class-default
fair-queue
random-detect
!
At the ATM end the service policy is applied to the virtual-template. It is not possible to apply it to the VC because
the VC does not support either traffic shaping or nested service policies.
At the FR end there is an option to apply the service policy on either the Virtual-template or the FR map-class.
The question is, which is appropriate? Does it matter? Failing any argument to the contrary I am inclined to use the
Virtual-template. The reasoning being that this would then be configured the same as the ATM end. It is also the way I
see it done in the doco ID 22383 "VoIP QoS for Frame Relay to ATM Interworking with LLQ, PPP LFI and cRTP"
There is no reason given for the way it is done.
Grateful for any comments
