User`s manual

DT-6061 User's Manual - Platform (Build 16.0)
11/12/04 Datatek Applications Inc. 43
The IP-LTCN can replace a DCN in its entirety. This eliminates a maintenance risk since the DCN
is manufacturer discontinued, with a consequential shortage of spare parts. A side benefit is that
the IP-LTCN will free up the 120 square feet of conditioned floor space taken up by the DCN.
The IP-LTCN supports an enhanced TCP/IP interface to the LoopCare host. This allows
connectivity with the LoopCare hosts using an IP infrastructure. The new LoopCare hosts do not
have either a BX.25 interface to communicate with a DCN, or a fiber interface to communicate
with a BNS/Datakit node. Instead, the LoopCare hosts have implemented a direct TCP/IP (with
RFC 854+885+1123 encapsulation) interface to the IP-LTCN application.
The IP-LTCN application relies on the DT-6061 redundancy infrastructure for its reliability. The
DT-6061 infrastructure provides 100% reliability through a 1+1 spare arrangement. The IP-LTCN
implements both the “A” and “B” cabinets of the DCN, and all interface paths of the LCN.
Consequently, the IP-LTCN is the most reliable solution possible for the loop test environment.
11.7 X25PAD
The X25PAD Application eliminates the need, complexity, and expense of specialized X.25
equipment in an IP network. The X25PAD Application allows an X.25/BX.25 device, such as a
network element’s console, to be connected to a synchronous port anywhere in the IP network.
Examples are a port on a DT-4XXX or DT-2020 connected SAM, or an endpoint such as a SAM
port in a BNS/Datakit network that connects to an IP network through a UMI module. X25PAD
Application connections to virtual circuits on an X.25/BX.25 port are provided with a telnet TCP/IP
connection and support both X.3 PAD and Pass-Through functionality on a per virtual circuit
basis.
This application can also be used to replace the functionality of the Datakit X25 Pass-Through
DKAP application.
11.8 IP-SLM
The IP-SLM application performs a software emulation of the BNS BX.25 interface (also known
as the Synchronous Line Module (SLM)). The IP-SLM application allows low cost and high-
density access points to terminate BX.25 interfaces common to Network Elements. The result is
significant cost savings, and administrative simplification. The IP-SLM is also a migration vehicle,
which enables the reduction or elimination of proprietary network components for the Network
Element support functionality.
Recent changes in requirements by Telcordia Technologies for the volume of information
collected from network elements have generated the need for higher speed BX.25 links. The
most cost effective way to meet this need is with the IP-SLM application. Synchronous line
speeds as high as 56 Kbps are supported.
11.9 IP-SPOOL
Many existing networking equipment consoles have the need for a dedicated print device.
Similarly, legacy hosts and their applications typically assume a dedicated printer of which their
use is exclusive. Many of these print devices are under-utilized, but require considerable periodic
maintenance. Finally, the physical location of these printers may not be convenient, due to
requirements implied by their legacy interfaces.
The IP-SPOOL application provides print spooling per RFC1179 to a shared print resource. It
provides the ability to route print output to a shared printer anywhere in the IP network. It reduces