Beta Draft Confidential
D-41/19/05 ATM Services Configuration Guide for CBX 3500, CBX 500, GX 550, and B-STDX 9000
ATM FCP Rate Profile Tables
MCR Class Mappings
MCR Class Mappings
The ATM FCP performs per-VC flow control using values from the rate profile tables
to assign buffers and adjust rates. These buffer and rate values are organized into 256
groups referred to as MCR classes.
This section provides MCR class mappings for the following modules:
• “DS3/E3 IOM MCR Class Mapping” on page D-4
• “T1/E1 IOM MCR Class Mapping” on page D-8
• “OC-3/STM-1 IOM MCR Class Mapping” on page D-10
• “OC-12/STM-4 IOM MCR Class Mapping” on page D-14
DS3/E3 IOM MCR Class Mapping
Table D-2 shows the MCR ranges and corresponding MCR classes for DS3/E3 IOMs.
Table D-2. DS3/E3 IOM MCR Class Mapping
MCR Range MCR Class MCR Range MCR Class MCR Range MCR Class
100 - 127 3 544 - 575 17 992 - 1023 31
128 - 159 4 576 - 607 18 1024 - 1055 32
160 - 191 5 608 - 639 19 1056 - 1087 33
192 - 223 6 640 - 671 20 1088 - 1119 34
224 - 255 7 672 - 703 21 1120 - 1151 35
256 - 287 8 704 - 735 22 1152 - 1183 36
288 - 319 9 736 - 767 23 1184 - 1215 37
320 - 351 10 768 - 799 24 1216 - 1247 38
352 - 383 11 800 - 831 25 1248 - 1279 39
384 - 415 12 832 - 863 26 1280 - 1311 40
416 - 447 13 864 - 895 27 1312 - 1343 41
448 - 479 14 896 - 927 28 1344 - 1375 42
480 - 511 15 928 - 959 29 1376 - 1407 43
512 - 543 16 960 - 991 30 1408 - 1439 44
1440 - 1471 45 2496 - 2559 71 4224 - 4351 97
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