Hirarchial (nested) policy bandwidth reservation

Unanswered Question
Aug 28th, 2008

Hi

My requirement was to run QoS on ethernet sub-interface. To achieve that I have configured the shape (percent) command, in "child" (nested) policy maps, on Cisco 7200.

IOS: c7200-adventerprisek9-mz.124-15.T1.bin

Now after applying the policy on sub-interface, the reserved bandwidth for each class is not being shown accurately in "show" commands:

7206#sh policy-map FastEthernet0/1.1

FastEthernet0/1.1

Service-policy output: ABCCosSub

Class-map: class-default (match-any)

478266 packets, 261182209 bytes

30 second offered rate 12045000 bps, drop rate 0 bps

Match: any

Traffic Shaping

Target/Average Byte Sustain Excess Interval Increment

Rate Limit bits/int bits/int (ms) (bytes)

100 (%) 0 (ms) 0 (ms)

12157521/12157521 379922 1519688 1519688 125 189961 >>>>>>>>>>>>>>>>>>>>>>>Interface bandwidth is 100Mbps

Adapt Queue Packets Bytes Packets Bytes Shaping

Active Depth Delayed Delayed Active

- 299 477918 261784898 268596 152975206 yes

Service-policy : ABCCos

Class-map: ControlClass (match-any)

8506 packets, 959869 bytes

30 second offered rate 45000 bps, drop rate 0 bps

Match: ip precedence 6

4546 packets, 480554 bytes

30 second rate 23000 bps

Match: mpls experimental topmost 6

3960 packets, 479315 bytes

30 second rate 22000 bps

Queueing

Output Queue: Conversation 265

Bandwidth 20 (%)

Bandwidth 2431 (kbps) >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>reserved bandwidth must be 20% of 100Mbps

(pkts matched/bytes matched) 4116/478504

(depth/total drops/no-buffer drops) 2/0/0

exponential weight: 9

mean queue depth: 3

Attached is the configuration of the router and complete output of "Show policy-map", "Show interface" commands.

rgds/bsn

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