User`s guide

Configuring WAN Connections
Configuring Frame Relay connections
1-24 Preliminary January 30, 1998 Pipeline User’s Guide
On the far end of the connection, set the AnsOrig and FT1 Caller parameters for
answering only. Note that the DO Hangup command only works from the caller
end of the connection.
You can reconfigure the parameters of a Nailed/MPP Connection profile at any
time, but the changes become active only after the call is brought down and then
back up. However, if you add a value to the Group parameter and save the
change, the additional channels are added to the connection without having to
bring it down and back up. For example, changing from Group=1 to Group= 2 as
described in “Nailed groups” on page 1-3.
Note:
If a Nailed/MPP connection is down and the nailed channels are also
down, the connection does not reestablish itself until the nailed channels are
brought back up or the switched channels are dialed. (The switched channels are
dialed when the calling unit receives a packet whose destination is the unit at the
far-end of the Nailed/MPP connection.)
Configuring Frame Relay connections
Some Ascend units provide Frame Relay as an option. If you are not sure if your
unit supports Frame Relay, press the Tab key to highlight the Sys Option status
window and then use the arrow key (or press Ctrl-N) to scroll down in the
window. If Frame Relay is installed, this text appears in the status window:
Frm Rel Installed
Frame Relay profiles define connections between the Pipeline and Frame Relay
switches. The connections are almost always nailed. Switched connections can
be used only in the rare situation in which the Frame Relay network allows dial-
in connections, and connections to the network are always initiated by the
Pipeline. (Frame relay switches currently have no dial-out connection capability.)
Connection profiles define logical links to an end-point on the Frame Relay
network. Each Connection profile must specify a Data Link Connection Identifier
(DLCI) for that link. A DLCI is a number between 16 and 991, which is assigned
by the Frame Relay administrator. A DLCI is not an address, but a local label that
identifies a logical link between a device and a Frame Relay switch. (That is, the
DLCIs enable the Frame Relay switch to identify the logical link associated with
each Connection profile.) The switch uses the DLCI to route frames through the