Link Numbers

A link is an association between a physical line, for example a serial cable or a phone line, and a hardware port on your machine. You must specify the link number when you specify the address if the following are all true:

• you have multiple links on your machine

• you are using a numeric address rather than a name or alias

• your system administrator has not set up the Solstice X.25 routing feature

• you are calling over a link other than link 0, the default link