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MDS Orbit MCR/ECR Technical Manual
MDS 05-6632A01, Rev. F
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Successive Loss Threshold - Number of consecutive icmp-echo requests for which no
responses need to be received before destination is declared unreachable. Value range
[1..32] DEFAULT = 6
-
Successive Gain Threshold - Number of consecutive icmp-echo requests for which no
responses need to be received before destination is declared reachable. Value range
[1..32] DEFAULT = 6
The interface-monitor operation can be created in a similar way.
Using the CLI
% set services netmon operation
NX-LINK-CHECK
enabled
true
% set services netmon operation
NX-LINK-CHECK
type icmp-echo-monitor
% set services netmon operation
NX-LINK-CHECK
icmp-echo-monitor dst-host
192.168.1.4
% set services netmon operation
NX-LINK-CHECK
icmp-echo-monitor interval
5
% set services netmon operation
NX-LINK-CHECK
icmp-echo-monitor timeout
1000
% set services netmon operation
NX-LINK-CHECK
icmp-echo-monitor successive-loss-threshold
6
% set services netmon operation
NX-LINK-CHECK
icmp-echo-monitor successive-gain-
threshold
6
Network Link Failover/Failback
3.8.20
Understanding
The unit incorporates integrated bridging and routing functionality with multiple wired and wireless
interfaces. The reliability of network links can be enhanced using network link failover/failback features.
The unit supports following two types of network link failover and failback features:
Route (Layer-3) Failover - The unit supports this feature by enabling configuration of multiple routes to
same destination network with different preference (metric) values, enabling traffic to be sent using the
route with high preference in normal scenario and failing back to the route with lower preference when
the destination network is not reachable through the higher preference route.
Link (Layer-2) Failover - The unit supports this feature by creation of a bond interface in an active-
backup mode that can aggregate a primary and secondary layer-2 link. When primary link is down, the
secondary link is used to send layer-2 traffic etc.
Use Case#1 High Reliability SCADA back office to Remote Sites Network
Following figure shows a setup to achieve a high reliability network communications between a SCADA
back office and remote sites using 900 MHz and Cellular communications in a redundant network setup
using routing functionality
Summary of Contents for MDS ORBIT ECR
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