2010-05-11 The DSCP field within the DS field is capable of conveying 64 distinct codepoints. The codepoint space is divided into three pools for the purpose of codepoint assignment and management: a pool of 32 codepoints (Pool 1) to be assigned by Standards Action as defined in , a pool of 16 codepoints (Pool 2) to be reserved for experimental or Local Use (EXP/LU) as defined in , and a pool of 16 codepoints (Pool 3) which are initially available for experimental or local use, but which should be preferentially utilized for standardized assignments if Pool 1 is ever exhausted. The pools are defined in the following table (where 'x' refers to either '0' or '1'). 1 xxxxx0 Standards Action 2 xxxx11 Experimental or Local Use Reserved for experimental or Local Use 3 xxxx01 Experimental or Local Use May be utilized for future Standards Action allocations as necessary Standards Action CS0 000000 CS1 001000 CS2 010000 CS3 011000 CS4 100000 CS5 101000 CS6 110000 CS7 111000 AF11 001010 AF12 001100 AF13 001110 AF21 010010 AF22 010100 AF23 010110 AF31 011010 AF32 011100 AF33 011110 AF41 100010 AF42 100100 AF43 100110 EF PHB 101110 VOICE-ADMIT 101100