D-Link DES-3326 User Manual page 124

DES-3326 Layer 3 Fast Ethernet Switch User's Guide
Figure 5-19. RIP v.1 Message Format
The COMMAND field operations are defined in the following table:
Command
1 Request for partial or full routing information
2 Response containing network-distance pairs from sender's routing
table
3
Turn on trace mode (obsolete)
4 Turn off trace mode (obsolete)
5 Reserved for Sun Microsystem's internal use
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Meaning
Switch Management and Operating Concepts