Lucent Technologies PortMaster - Manual (Page 121)

Configuring Dial-In Users 7-7
Configuring Network Users
Table 7-2 describes the results of using each keyword.
Setting the Asynchronous Character Map
The PPP protocol supports the replacement of nonprinting ASCII data in the PPP stream.
These characters are not sent through the line, but instead are replaced by a special set
of characters that the remote site interprets as the original characters. The PPP
asynchronous map is a bit map of characters that should be replaced. The lowest-order
bit corresponds to the first ASCII character NUL, and so on. In most environments, the
asynchronous map should be set to zero to achieve maximum throughput.
To set the PPP asynchronous character map, use the following command:
Command> set user Username map Hex
Setting the MTU Size
The maximum transmission unit (MTU) defines the largest frame or packet that can be
sent without fragmentation. A packet that exceeds this value is fragmented, if IP, or
discarded if IPX. PPP connections can have a maximum MTU of 1520 bytes. SLIP
connections can have a maximum MTU of 1006 bytes. PPP can negotiate smaller MTUs
when requested by the calling party.
Table 7-2 Keywords for Configuring RIP Routing
Keyword Description
on The PortMaster broadcasts and listens for RIP information.
off The PortMaster neither broadcasts nor listens for RIP
information from the local Ethernet. This is the default.
broadcast The PortMaster broadcasts RIP information to the host at the
other end of the connection.
listen The PortMaster listens for RIP information from the host or
other router.