Dell PowerConnect Brocade 300 Fabric OS Administrator's Guide v7.1.0 - Page 627
Hexadecimal Conversion, Example conversion of the hexadecimal triplet Ox616000
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Hexadecimal Conversion Appendix C Hexadecimal overview Hexadecimal, also known as hex, is a numeral system with a base of 16, usually written by means of symbols 0-9 and A-F (or a-f). Its primary purpose is to represent the binary code that computers interpret in a format easier for humans to remember. It acts as a form of shorthand, in which one hexadecimal digit takes the place of four binary bits. For example, the decimal numeral 79, with the binary representation of 01001111, is 4F (or 4f) in hexadecimal where 4 = 0100, and F = 1111. Hexadecimal numbers can have either an 0x prefix or an h suffix. The address 0xFFFFFA is the same address as FFFFFAh.This type of address with 6 digits representing 3 bytes, is called a hex triplet. Fibre Channel uses hexadecimal notation in hex triplets to specify well-known addresses and port IDs. Example conversion of the hexadecimal triplet Ox616000 Notice the PID (610600 - bolded) 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 LSAN: Yes The Local Name Server has 1 entry } 1. Separate the 6 digits into triplets by inserting a space after every 2 digits: 61 06 00 2. Convert each hexadecimal value to a decimal representation: 61 = Domain ID = 97 06 = Area (port number) = 06 00 = Port (ALPA) = 0 (not used in this instance, but is used in loop, shared areas in PID assignments on blades, NPIV, and Access Gateway devices) Result: hexadecimal triplet 610600 = decimal triplet 97,06,00 Fabric OS Administrator's Guide 627 53-1002745-02
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