This command gives information about AppleTalk input and output packets and packet errors.
TNHOME/usr/bin
ddpinfo [-i[x]] [-u[x]] [-r]
| -i | Provide the interface, a list of hardware and AppleTalk addresses, the number of input and output packets, and the number of packets that contained errors. | 
| -x | Give a detailed breakage of errors. | 
| -u | Provide user information broken down by protocol types, number of input and output packets, and number of packets containing errors. The protocol types include: RTMP Data and Response Name Binding Protocol AppleTalk Transaction Protocol AppleTalk Echo Protocol RTMP Requests Zone Information Protocol AppleTalk Data Stream Protocol | 
| -r | Provide network number and port number, or route and router address, if applicable. | 
Use one of the following commands to acquire information about an AppleTalk interface:
| ddpinfo ddpinfo -i | 
Sample Output:
| Port 0: | |
| 
 | name: 11c2:66 | 
| 
 | hw addr: 0800 6902 7a4e | 
| 
 | appletalk addr: 1079/154 (0x437/0x9a) | 
| 
 | ipkts/opkts 26579/2220, ierrs/oerrs 5/0 | 
Use the following command to receive a detailed breakdown of errors:
| ddpinfo -x | 
Sample Output:
| Port 0: | |
| 
 | name: 11c2:66 | 
| 
 | hw addr: 0800 6902 7a4e | 
| 
 | appletalk addr: 1079/154 (0x437/0x9a) | 
| 
 | ipkts/opkts 26579/2220, ierrs/oerrs 5/0 | 
| Error breakdown: | |
| 
 | fragment: 0 | 
| 
 | short packet: 0 | 
| 
 | too many hops: 0 | 
| 
 | indirect broadcast: 0 | 
| 
 | unreachable network: 1 | 
| 
 | inactive protocol type: 4 | 
| 
 | user queue closed: 0 | 
| 
 | no memory on input: 0 | 
| 
 | badly formatted aarp packet: 0 | 
| 
 | badly formatted ddp packet: 0 | 
| 
 | dropped due to full queue: 0 | 
| 
 | dropped due to full interface: 0 | 
| 
 | output data link: 0 | 
| 
 | interface unlinked: 0 | 
| 
 | no memory on output: 0 | 
| 
 | no output ddp stream: 0 | 
| 
 | no output aarp stream: 0 | 
Use the following command to acquire user information:
| ddpinfo -u | 
Sample Output:
| Upper stream minor device 0: | |
| 
 | Protocol type 6 | 
| 
 | ipkts/opkts 72/3, ierrs/oerrs 0/0 | 
| Upper stream minor device 1: | |
| 
 | Protocol type 3 | 
| 
 | ipkts/opkts 0/0, ierrs/oerrs 0/0 | 
| Upper stream minor device 2: | |
| 
 | Protocol type 1 | 
| 
 | ipkts/opkts 23817/0, ierrs/oerrs 0/0 | 
| Upper stream minor device 3: | |
| 
 | Protocol type 2 | 
| 
 | ipkts/opkts 2769/2203, ierrs/oerrs 0/0 | 
| Upper stream minor device 4: | |
| 
 | Protocol type 4 | 
| 
 | ipkts/opkts 0/0, ierrs/oerrs 0/0 | 
| Upper stream minor device 5: | |
| 
 | Protocol type 0 | 
| 
 | ipkts/opkts 0/0, ierrs/oerrs 0/0 | 
Use the following command to acquire the network number and port number, or the route and router address:
| ddpinfo -r | 
| Router route table entry: | |
| 
 | range 1-1 (0x1-0x1), port number 0 | 
| 
 | router address 1000/66 | 
| Router route table entry: | |
| 
 | range 2-2 (0x2-0x2), port number 0 | 
| 
 | router address 1000/66 | 
| Router route table entry: | |
| 
 | range 3-3 (0x3-0x3), port number 0 | 
| 
 | router address 1000/66 | 
| Router route table entry: | |
| 
 | range 410-410 (0x19a-0x19a), port number 0 | 
| 
 | router address 1000/154 | 
| Local route table entry: | |
| 
 | range 1000-1100 (0x3e8-0x44c), port number 0 |