...
| Vendor | Standard | Extended |
|---|---|---|
| 3Com | Yes | Yes |
| Alcatel | Yes | Yes |
| Apple OSX | Yes | Yes |
| Bay Networks | Yes | Yes |
| Brocade | Yes | No |
| Checkpoint | Yes | Yes |
| Cisco Systems | Yes | Yes |
| Emerson Energy Systems | Yes | Yes |
| Free BSD | Yes | Yes |
| Foundry | Yes | Yes |
| HP | Yes | Yes |
| HP UX | Yes | Yes |
| IBM AIX | Yes | Yes |
| Juniper | Yes | Yes |
| Linux | Yes | Yes |
| Merlin Gerin | Yes | Yes |
| Microsoft | Yes | Yes |
| Netgear | Yes | Yes |
| Nortel | Yes | Yes |
| Palo Alto Networks | Yes | Yes |
| QNAP | Yes | Yes |
| Redback | Yes | Yes |
| Riverbed | Yes | Yes |
| Riverstone | Yes | Yes |
| ServersCheck | Yes | Yes |
| Sun Solaris | Yes | Yes |
| Synoptics | Yes | Yes |
| ZyXEL | Yes | Yes |