Hexadecimal; Hexadecimal Overview - Brocade Communications Systems 1606 Administrator's Manual

Hexadecimal

In this appendix

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
N
The Local Name Server has 1 entry }
1. Separate the triplets: 61 06 00
2. Convert each hexadecimal value to a decimal representation:
Fabric OS Administrator's Guide
53-1001336-01
•
Hexadecimal overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 533
COS PortName
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
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
61 = Domain ID = 97
06 = Area (port number) = 06
NodeName
DV5-5.10A10 "
Appendix
E
TTL(sec)
533