That value should be defined in the ReliableMessageProtocolConfig.h,

[todo]

connectedhomeip/src/lib/mdns/Discovery_ImplPlatform.cpp

Lines 267 to 277 in 60a2557

	// TODO: That value should be defined in the ReliableMessageProtocolConfig.h,
	// but for now it is not possible to access it from src/lib/mdns. It should be
	// refactored after creating common DNS-SD layer.
	constexpr uint32_t kMaxCRMPRetryInterval = 3600000;
	// kMaxCRMPRetryInterval max value is 3600000, what gives 7 characters and newline
	// necessary to represent it in the text form.
	constexpr uint8_t kMaxCRMPRetryBufferSize = 7 + 1;
	char crmpRetryIntervalIdleBuf[kMaxCRMPRetryBufferSize];
	char crmpRetryIntervalActiveBuf[kMaxCRMPRetryBufferSize];
	TextEntry crmpRetryIntervalEntries[2];
	size_t textEntrySize = 0;

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This issue was generated by todo based on a TODO comment in 60a2557 when #5841 was merged. cc @kkasperczyk-no.