To 852 Bridge Mode - adept technology GadgetGateway User Manual

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GadgetGateway Overview

uint32

uint16

char

} UNVTStatusType;

The ﬁelds are as follows:

Status is an 8 bit number. The bit deﬁnitions are given in Table 1. It is the same infor-

mation reported in the Status SNVT reserved ﬁeld.

totalArbs is the total number of active state arbitrations since the last time the statistics

were cleared.

totalFailuresIP is the total number monitoring packet failures detected by this

device of the IP interface since the statistics were cleared.

totalFailuresLON is the total number of monitoring packet failures detected by this

device of the LON interface since the statistics were cleared.

totalFaultsIP is the total number of diagnostic faults detected by this device of the

IP interface since the statistics were cleared.

totalFaultsLON is the total number of diagnostic faults detected by this device of the

LON interface since the statistics were cleared.

secsSinceClear is the count of seconds since the statistics were last cleared.

forwardRate is computed as the total number of packets forwarded divided by the

number of seconds since the forward rate was last calculated. The forward rate is updated

whenever the UNVT is updated and at least 1 second has expired since the last update.

2.6 852 to 852 Bridge Mode

In order to better support large installations with dozens of IP to LON routers a Gadget-

Gateway router can be conﬁgured in 852 to 852 bridging router mode. In this mode one

GadgetGateway router can bridge two logical 852 channels. When acting as an 852 bridge

the router is a member of two logical 852 channels sharing one ethernet interface. The

router bridges trafﬁc between the two channels. On the LON side the bridge looks like a

LON router. This overcomes limitations of some network managers on the number of 852

devices per channel and provides for enhanced scalability by partitioning the 852 trafﬁc

totalArbs;

totalFailuresIP;

totalFailuresLON;

totalFaultsIP;

totalFaultsLON;

secsSinceClear; // seconds

forwardRate; // packets per second

reserved[2];

2.6852 to 852 Bridge Mode

2-15

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