1

TC packets verification

2

Device command distribution

3

Housekeeping & diagnostic data reporting

4

Parameter statistics reporting

5

Asynchroneous events reporting

6

Memory management

8

Function management

9

Time management

11

On-board operations scheduling

12

Monitoring management

13

Large data transfer

14

Packet forwarding control

15

On-board storage and retrieval

17

Test connection

18

On-board operation procedure

19

Event-action

20

information distribution management

21

Science data transfer management