96 | Chapter 5 - DECnet Routing & Bridging |
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Hello Timer
DECnet hello messages tell end nodes which routers are available to route packets. This parameter tells the router how frequently it should send hello messages on this interface.
The Hello Timer value is also inserted into the hello messages themselves. Once an end node has received a hello message from a router, it begins to track the availability of that router. If an end node does not hear an additional hello message within 3 timer periods, it assumes that this router is no longer available.
The default value for this parameter is 30 seconds. The maximum value is 8191 seconds (approximately 2 hours and 15 minutes).
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Routing Timer
DECnet routing messages are exchanged between routers and contain routing table information including node numbers, hello timer values, hop counts and costs. This parameter tells the router how frequently it should send routing messages on this interface.
The default value for this parameter is 120 seconds. The maximum value is 8191 seconds (approximately 2 hours and 15 minutes).
ϖNote: For