Siemens OSM Bedienungsanleitung Seite 151

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Glossary
Glossary-4
Industrial Ethernet OSM/ESM Network Management
C79000-G8976-C137-08
Half duplex flow control
see Back pressure
HTML
HTML is the abbreviation for Hypertext Markup Language. Using this language it
is possible to publish documents in a uniform language on the Web. The main
feature of this language is the ability to specify connections to other HTML
documents known as URLs.
IP address
An IP address consists of a numeric code made up of four numbers from 0 to
255 (for example 192.168.0.55). This is the numeric address of a specific
computer in the network/Internet.
Jabbers
Packets with an invalid CRC and a length greater than 1536 bytes.
Java
Programming language developed by Sun.
Java applet
The name for a Java subroutine. On the OSM/ESM, there is a Java applet in the
Web site of the OSM/ESM that updates the device status shown on the Web site
after startup.
Learning
The OSM/ESM automatically learns the MAC addresses and port numbers of the
nodes connected to it and stores the information in the FDB table.
Link status
The valid link from an OSM/ESM port to the port of a partner device is monitored
by link test pulses. A valid link is indicated on the OSM/ESM, for example by the
port status LED being lit (permanent green light).
MAC address
6-byte node address of an Ethernet node.
MIB
Management Information Base. In network management, the database (tree
structure) in which all objects and variables that can be managed are entered.
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