236 Cisco LAN Switching Configuration Handbook
Table 13-4 Granularity of CIR Burst Values
CIR/PIR burst Range Granularity of Actual Value
1–32,768 (32 Kb) 1024 (1 Kb)
32,769–65,536 (64 Kb) 2048 (2 Kb)
65,537–131,072 (128 Kb) 4096 (4 Kb)
131,073–262,144 (256 Kb) 8192 (8 Kb)
262,145–524,288 (512 Kb) 16,384 (16 Kb)
524,289–1,048,576 (1 Mb) 32,768 (32 Kb)
1,048,577–2,097,152 (2 Mb) 65,536 (64 Kb)
2,097,153–4,194,304 (4 Mb) 131,072 (128 Kb)
4,194,305–8,388,608 (8 Mb) 262,144 (256 Kb)
8,388,609–16,777,216 (16 Mb) 524,288 (512 Kb)
16,777,217–33,554,432 (32 Mb) 1,048,576 (1 Mb)
33,554,433–67,108,864 (64 Mb) 2,097,152 (2 Mb)
67,108,865–134,217,728 (128 Mb) 4,194,304 (4 Mb)
134,217,729–268,435,456 (256 Mb) 8,388,608 (8 Mb)
268,435,457–536,870,912 (512 Mb) 16,777,216 (16 Mb)
d. (Optional) Define a DSCP markdown mapping:
(global) mls qos map policed-dscp internal-dscp to policed-dscp
The internal DSCP values internal-dscp are marked down to policed-dscp val-
ues. Internal DSCP values can be specified as single values, multiple values sepa-
rated by commas, or as a hyphenated range. A COS switch requires a colon (:)
between the internal and policed DSCP values, whereas an IOS switch requires
the to keyword. More mappings can be given on a COS switch by separating
them with spaces, and on an IOS switch by repeating this command.
6. Define matching traffic for a QoS policy.
Tip In the following steps, source and destination addresses are given by source-ip and
destination-ip, along with masks for wildcard matching (0-bit matches, 1-bit is wildcard). If
any address is to be matched, you can replace the address and mask fields with the key-
word any. If a specific host address is to be matched, you can replace the address and mask
fields with the keyword host followed by its IP address.
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