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CC2630: How long can my end device go without polling its parent? What happens after that timeout?

steven lin
Expert 1015 points
Part Number: CC2630
Other Parts Discussed in Thread: Z-STACK

hi all,

i have some confuse issue about polling .

A.

How long can my end device go without polling its parent?

it should be reference the indirect message holding timeout value(NWK_INDIRECT_MSG_TIMEOUT =7)

or depend on your application(someone say  Smart Energy (SE) profile have other polling rate ?)

B.What happens after that timeout?

DROUTE_EXPIRY_TIME =30

when router timeout,

it should be  removed from the child table at the parent?

if end device network communications, how to do (it should be rejoin ) ,i do't see end device have any action about it ?

C.

Poll Control cluster

i found a cluster about controll "Polling rate" .it seem use check-in to change mode(long/fast polling mode)

how to reliable  transaction with another node when device remove (change battery or other )

  • 0
    Guru 735695 points
    A. It refers to the indirect message holding timeout value(NWK_INDIRECT_MSG_TIMEOUT =7)
    B. ROUTE_EXPIRY_TIME is for routing table maintenance. You can refer to section 5.2.3 Route expiry in Z-Stack Developer's Guide.pdf
    The routing table maintains entries for established routes. If no data packets are sent along a route for a period of time, the route will be marked as expired. Expired routes are not deleted until space is needed. Thus routes are not deleted until it is absolutely necessary. The automatic route expiry time can be configured in f8wconfig.cfg. Set ROUTE_EXPIRY_TIME to expiry time in seconds. Set to 0 in order to turn off route expiry feature.
    C. You can read ZCL spec for Poll Control cluster details.