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4 - 10 ONline Ethernet Management Module Installation and Operation Guide
3Com also uses the Internet defined protocol, ARP (Address Resolution
Protocol). This protocol is used in a similar fashion to the tag resolution
protocol, except that it is used to resolve an IP address to a network
address.
RCP, or the 3Com remote character protocol is used to support the remote
login session. The protocol defines a master/slave relationship between the
device initiating the login session and the device supporting the session.
Terminal characters are separately sent between the master and slave.
Upon command completion, the slave sends the output of the executed
command.
RCP also maintains an underlying protocol to determine if the login session
is still active. Basically, the master pings the slave once a minute. After the
timeout period passes without a successful ping, the remote session is
aborted.