WAN Subsystem Configuration and Management Manual

Overview of the WAN Subsystem

WAN Subsystem Configuration and Management Manual—522463-011

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Communication Line Interface Processors (CLIPs)

For enhanced reliability, each CLIP has access to both Ethernet ports. This figure

shows the six CLIPs located on the front panel of the SWAN 2 concentrator. Each

CLIP has an associated WAN BIC on the back panel. Together they support two WAN

ports that can run different communications protocols or electrical interfaces

simultaneously.

SWAN 2 Firmware File

The SWAN 2 firmware file is the 510 disk file that resides on an

Integrity NonStop NS-series server or NonStop S-series server disk file and is

downloaded to the SWAN 2 concentrator. The SWAN 2 firmware file contains these

files:

•

SWAN Bootcode (T7954), which is written into the flash programmable memory

(PROM) on each CLIP on the SWAN 2 concentrator. This file contains:

SWAN 2 Bootcode (T7955), which contains the loader and which tests the

SWAN 2 concentrator hardware with the power-on self-test (POST).

SWAN Kernel (T7848), which is downloaded through the KERNELCODE

attribute of the Subsystem Control Facility (SCF) ADD ADAPTER command,

the OSM Service Connection, or the TSM Service Application (G-series RVUs

only).

•

SWAN Firmtask (T5814), which is downloaded into the SWAN 2 concentrator’s

dynamic random access memory (DRAM) along with the PROM image. This file

updates the flash image in the SWAN 2 concentrator’s flash PROM.

Updating SWAN 2 concentrator firmware is described in the SWAN 2 Concentrator

Installation and Support Guide.

Note. The communications line interface processor (CLIP) is also known as a WAN logic

board (LB).

Communication Line Interface Processors

(CLIPs)

VST931.vsd