From: Michael Dorion (dorionm@gmail.com)
Date: Fri Oct 24 2008 - 13:49:25 ARST
You could apply a service policy directly to the interface, but based on the
wording I'm guessing it's a multipoint interface with multiple PVCs.
Here is an example on R3 pvc 301, I think this covers it.
------------------
!on R3
policy-map FR
class class-default
shape peak 128000 8000 8000
police cir 64000 bc 1000 be 1000
conform-action transmit
exceed-action transmit
violate-action set-frde-transmit
!
map-class frame-relay FRAME
service-policy output FR
!
interface Serial 1/0
frame-relay interface-dlci 301
class FRAME
------------------
!on SW1 (Behind R3)
ping 19.19.13.1 rep 1000 tim 0
.................................
--------------------
!on R3
Rack1R3#sho policy-map interface
Serial1/0: DLCI 301 -
Service-policy output: FR
Class-map: class-default (match-any)
1005 packets, 104580 bytes
5 minute offered rate 20000 bps, drop rate 0 bps
Match: any
Traffic Shaping
Target/Average Byte Sustain Excess Interval Increment
Rate Limit bits/int bits/int (ms) (bytes)
256000/128000 2000 8000 8000 62 2000
Adapt Queue Packets Bytes Packets Bytes Shaping
Active Depth Delayed Delayed Active
- 0 809 84196 743 77272 no
police:
cir 64000 bps, bc 1000 bytes, be 1000 bytes
conformed 192 packets, 19968 bytes; actions:
transmit
exceeded 9 packets, 936 bytes; actions:
transmit
violated 799 packets, 83096 bytes; actions:
set-frde-transmit
conformed 0 bps, exceed 0 bps, violate 2000 bps
Rack1R3#sho fram pvc 301 | be DLCI
DLCI = 301, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial1/0
input pkts 809 output pkts 808 in bytes 84096
out bytes 84080 dropped pkts 0 in pkts dropped
0
out pkts dropped 196 out bytes dropped 20384
late-dropped out pkts 196 late-dropped out bytes 20384
in FECN pkts 0 in BECN pkts 0 out FECN pkts 0
out BECN pkts 0 in DE pkts 0 out DE pkts 799
out bcast pkts 0 out bcast bytes 0
5 minute input rate 3000 bits/sec, 4 packets/sec
5 minute output rate 3000 bits/sec, 4 packets/sec
pvc create time 02:40:50, last time pvc status changed 02:40:50
--------------------------
Notice "target" rate is 256k even though peak is set to 128. You can set an
adaptive minimum in the FR policy map with "shape adaptive 128000 " under
class class-default.
On Fri, Oct 24, 2008 at 7:39 AM, Reza Toghraee <reza@toghraee.com> wrote:
> Hello
>
>
>
> A task is asking :
>
>
>
> PVC 304 should be configured with MINCIR 128000 bps and Peak Rate 128000
> bps. Use a method based on dual token bucket algorithm to mark outgoing
> traffic on R3 with the discard eligible bit, if the traffic exceeds 1000
> byte normal burst size and 1000 byte excess burst size at the committed
> rate
> of 64000 bps.
>
>
>
> What is proper way to solve this?
>
>
>
> Reza
>
>
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>
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