JN5168 Maximum connected nodes

ffonck — Mon, 22 Jan 2024 12:49:55 GMT

Hi.

I was wondering the real amount of "maximum number of nodes" on a star topology by using the JN5168-001-M06, in other words, without using any router. Zigbee PRO Stack datasheet doesn't specify a maximum value for this parameter. As I'm concerned, this is related to RAM usage and configuration of another parameter values.

So:

1) There's a fixed maximum amount of "Maximum Number of Nodes"?

2) If this value depends on other values, how can i calculate the parameter? Otherwise, there is any documentation related to this?

@mario_castaneda hope you can help me in this one. Regards!

Re: JN5168 Maximum connected nodes

EduardoZamora — Mon, 22 Jan 2024 18:29:08 GMT

Hello @ffonck

Hope you are doing well.

As indicated in Zigbee 3 Stack User Guide, Chapter 1 Overview, Section 1.2 ZigBee PRO Network Topology, the stack is designed primarily for Mesh networks. Please, consider the following parameters:

Neighbour Table:

The Neighbour table size is, by default, set to 26 - this is the minimum size required for a ZigBee-Compliant Platform
Increasing the table size will use more RAM.

Child Table Size:

The default size for the sub-table is 5, allowing up to 4 child nodes.
The maximum number of children is one less than the sub-table size.
Note that increasing the sub-table size will use more EEPROM for persisted data.
This value must not be greater than two-thirds of the Active Neighbour Table Size value.

Address Map Table

The default size of the Address Map table is 10, but the size can be changed through the parameter Address Map Table Size.
The Address Map table is fully persisted in EEPROM.
Therefore, increasing the size of this table will impact both RAM and EEPROM usage

MAC Address Table

Is used to store the address-pairs of other network nodes - that is, the IEEE/MAC address and network address of each of these nodes.
the MAC Address table should be sized according to the combined sizes of the Neighbour table and Address Map table
The MAC Address table is fully persisted in EEPROM.
Increasing the size of this table will impact both RAM and EEPROM usage.

Routing Table

The Coordinator needs to store routes to all the nodes in the network if it is required to communicate with every node.
The increase will therefore only affect RAM usage.

Regards,
Eduardo.

Re: JN5168 Maximum connected nodes

ffonck — Wed, 07 Feb 2024 14:03:50 GMT

Thanks for the useful information. I'll have this consider for future developments.

topic Re: JN5168 Maximum connected nodes in Wireless MCU

JN5168 Maximum connected nodes

Re: JN5168 Maximum connected nodes

Re: JN5168 Maximum connected nodes