DEFINITY Enterprise Communications Server Release 8.2
Upgrades and Additions for R8r
555-233-115 Issue 1
April 2000
Troubleshooting an Upgrade
B-6New for Release 8
B
Control LAN (C-LAN)
The TN799 Control LAN (C-LAN) packet port c ircuit pack provid es TCP/IP
connection to adjunc ts applications s uch as CMS, Intuity, and DCS Networking.
The C-LAN circuit pack has 1 10b aseT Ethernet connection and up to 16 DS0
phys ical inter fac es for PPP conn ecti ons. Pu tting mult ipl e C-LA N cir cuit pac ks int o
a -system gives additional TCP/IP capac ity. In addition to the TCP/IP functionality,
CLAN extends the ISDN capabilities for csi models by providing Packet bus
access.
A remo te soc ket c ont rol lin k (RSCL ) link s the C -LAN and t he SPE to p ass call
control and other management information. Since one link serves all the port s on
the circuit pack, maintenance of the RSCL is part of the C-LAN circui t pack
maintenance.
The C-LAN TN799 circuit pack comb ines the functions of the PGATE and PI
circuit packs into one circuit pac k. The PGATE or PI can be used with the C-LAN
to create an X.25-to-TCP/IP bridge for adjunct and DCS connectivity.
Maintenance objects asso ciated under the Control LAN area inc lude CLAN-BD
(Control LAN Circuit Pack), ETH-PT (Control LAN Ethernet), and PPP-PT (Control
LAN Packet/Port).
System Links (SYS-LINK)
System Links are packet links that originate at the Packet Interface board and
traverse various hardware compon ents to specific end points. The hardware
components involved on the forward and reverse routes can b e different,
depending u pon the configuration and switch administration. Various types of
links are defined by their end points:
EAL Expansion Archangel Link terminating at an Expansion Interface board.
This link carries CCMS messages.
INL Indirect Neighbor Link terminating at a Switch Node Interface board
PACL PNC ATM Control Link terminating at a PNC ATM EI board. This link carries
ATM signaling commands from CaPro to the remote TN2238 (ATM-EI)
boards.
PGC Packet Gateway Call-Control Link terminating at a Packet Gateway board
PRI ISDN PRI D-Channel Link terminating at a Universal DS1 board
RSCL Remote Socket Control Link terminating at a C-LAN board
RSL Remote Socket Link teminating at a C-LAN board
SAP System (Access) Port Link terminating at a Packet Data port
X.25 BX.25 Link terminating at a Packet Gateway port