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Preface, Byte order – Thinklogical Router Interfaces User Manual

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Preface

This document describes the serial and network interfaces for Thinklogical's® VX/MX/HDX family of
routers. There is more extensive documentation available concerning the ASCII interface API, SNMP
MIB definitions, and additional information at the Thinklogical®

ftp site:

ftp://ftp.thinklogical.com/VXRouter/Documentation/

. Other manuals and QuickStart Guides may be

downloaded from our web site:

http:/www.thinklogical.com/resources

.

These manuals are available for downloading:

Router-ASCII-API.pdf

Configuring-the-ASCII-Interface.pdf

Router_SNMP_Traps.pdf

IP_Address_Change_Guide.pdf

Manual_How To Change A Router's IP Address.pdf

Router SNMP MIB definition files that are available for downloading:

LSI-ROOT.mib

LSI-ROUTER-API-INTERFACE.mib

LSI-SFP.mib

LSI-VXROUTER.mib

Byte Order

The 16-bit values documented here store the most significant byte first. This is called Big Endian format.
For example, a hexadecimal value of 1235H is stored with 12H in byte 0 and 23H in byte 1.
If your receiving system is not a Big Endian CPU (Intel processors are not), then you will have to swap
the byte order before you can use the value. If you don't swap the bytes, then a value of 1 from the router
will be interpreted as 256, 2 as 512, and 640 as 32770.

Nov 3, 2014

Router Interfaces: Byte Order

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