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Cisco MWR 2941 Mobile Wireless Edge Router Release 3.5 Command Reference, Cisco IOS Release 15.1(3)MR
OL-26895-01
Chapter Cisco MWR 2941 Router Command Reference, Release 15.1(3)MR
show policy-map interface
Serial2/0 is administratively down, line protocol is down
Hardware is M4T
MTU 1500 bytes, BW 2048 Kbit, DLY 20000 usec, rely 255/255, load 1/255
The following values are used for calculating the PIR:
40 % * 2048 kbps = 819200 bps
Note Discrepancies between this total and the total shown in the output from the show policy-map
interface command can be attributed to a rounding calculation or to differences associated with
the specific interface configuration.
Formula for Calculating the Committed Burst (bc): Example
When calculating the bc, the following formula is used:
• The bc in milliseconds (as shown in the show policy-map command) * the CIR in bits per seconds
= total number bytes
The following values are used for calculating the bc:
300 ms * 409600 bps = 15360 bytes
Formula for Calculating the Excess Burst (be): Example
When calculating the bc and the be, the following formula is used:
• The be in milliseconds (as shown in the show policy-map command) * the PIR in bits per seconds
= total number bytes
The following values are used for calculating the be:
400 ms * 819200 bps = 40960 bytes
Table 1-55 describes the significant fields shown in the display.
Table 1-55 show policy-map interface Field Descriptions
Field Description
Service-policy output Name of the output service policy applied to the specified interface or VC.
Class-map Class of traffic being displayed. Output is displayed for each configured class
in the policy. The choice for implementing class matches (for example,
match-all or match-any) can also appear next to the traffic class.
packets and bytes Number of packets (also shown in bytes) identified as belonging to the class of
traffic being displayed.
offered rate Rate, in kbps, of packets coming in to the class.
drop rate Rate, in kbps, at which packets are dropped from the class. The drop rate is
calculated by subtracting the number of successfully transmitted packets from
the offered rate.
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