HP StorageWorks 8/40 Brocade Fabric OS Administrator's Guide v6.3.0 (53-100133 - Page 575
Hexadecimal, Hexadecimal overview, In this appendix
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Hexadecimal Appendix E In this appendix •Hexadecimal overview 533 Hexadecimal overview Hexadecimal, or simply hex, is a numeral system with a base of 16, usually written using unique symbols 0-9 and A-F, or a-f. Its primary purpose is to represent the binary code that computers interpret and represent in a format easier for humans to read. It acts as a form of shorthand, in which one hexadecimal digit stands in place of four binary bits. For example, the decimal numeral 79, whose binary representation is 01001111, is 4F (or 4f) in hexadecimal (4 = 0100, F = 1111). Hexadecimal numbers can have either an 0x prefix or an h suffix. 0xFFFFFA is the same address as, FFFFFAh This type of address is called a hex triplet. Fibre Channel uses hexadecimal notation in hex triplets to specify well-known addresses and port IDs. Example of conversion from hexadecimal triplet to decimal triplet. hexadecimal triplet: Ox616000 Notice the PID in the nsshow output is in hexadecimal. Switch:admin> nsshow { Type Pid COS PortName NodeName TTL(sec) N 610600; 2,3;10:00:00:00:c9:29:b3:84;20:00:00:00:c9:29:b3:84; na FC4s: FCP NodeSymb: [36] "Emulex LP9002 FV3.90A7 DV5-5.10A10 " Fabric Port Name: 20:08:00:05:1e:01:23:e0 Permanent Port Name: 10:00:00:00:c9:29:b3:84 Port Index: 6 Share Area: No Device Shared in Other AD: No Redirect: No The Local Name Server has 1 entry } 1. Separate the triplets: 61 06 00 2. Convert each hexadecimal value to a decimal representation: 61 = Domain ID = 97 06 = Area (port number) = 06 Fabric OS Administrator's Guide 533 53-1001336-01
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