Gateways are application-particular
interfaces that connect each of the seven layers of the OSI model when they are
disparate at any or all levels. For example, on the off chance that you have to
associate a network that utilizes one of the OSI networking models to one
utilizing IBM's Systems Network Architecture (SNA) model, utilize an gateway. Gateways can likewise make an
interpretation of from Ethernet to Token Ring, albeit more straightforward
arrangements than gateways exist in the event that you need such an
interpretation. Since gateways must interpret a lot, they have a
tendency to be slower than different arrangements, especially under
overwhelming burdens.
The essential use for gateways
today is for
taking care of email. POP3 and SMTP are two cases of conventions that are taken
care of by gateways. Most email frameworks that can associate with unique
frameworks either utilize a PC set up as a gateway for that errand or let the
email server hold the gateway tasks itself.
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