Cisco 700 - Manual (Page 20)

Product Features
Cisco 700 Series Router Installation Guide 1-6
If the idle time expires too close to the end of the paid period to close the connections before
the end of the paid period, the router extends the connection to the end of the next paid
period, minus disconnect time.
X.25 Policy Routing
X.25 Policy Routing routes a specific IP packet to the target IP host through an X.25
D channel and provide the parameters needed for a X.25 D channel connection. The router
does not require knowledge of POS transaction formats or protocols.
X.25 Over B Channel
Cisco 700 series router software Release 4.1(1) and higher includes a special image that
supports the Cardway TPAD services (British Telecom). The connection is made through
the Cisco 700 series router serial port.
X.25 Priority Queueing
Priority queueing improves the responsiveness of the D channel link. X.25 is a flow-
controlled, nonbroadcast multiaccess (NBMA) protocol. A high-priority packet might not
be transmitted first, even when it is eligible. With priority queueing, data can be put into
one of the four priority queues: high, medium, normal, and low. Packets with the same
priority are sent on a first-in-first-out basis.
Leased Line Authentication Requirement Removed
In software Release 4.0(1) and higher, the authentication sequence is no longer required for
leased line connections. (For 64-kbps or 128-kbps leased line connections, previous
versions of the software required PAP/CHAP authentication to identify the corresponding
profile.)
To eliminate the need for authentication, a user-defined profile named leasedline must be
present and defined. If this profile is not present upon call connect, the router requires
authentication to select the correct profile. If the call cannot be authenticated, the router