EXNET-ONE Card

Overview

The EXNET-ONE card is used to connect up to seven EXNET Nodes (CSP 2040 and CSP 2090) together over a high-speed optical fiber ring to form a single virtual CSP. This card is capable of switching any port on the local node to any other port on an attached node, and vice-versa.

The EXNET-ONE is a full-size card that can be installed into any
CSP 2040 and CSP 2090 I/O slot that does not have a line card in the corresponding front slot.

A line card must not be inserted in the slot in front of the EXNET-ONE card, or vice-versa. The EXNET-ONE card uses the front line card slot for bus resources, identifying itself (Card ID 0x54) as residing in the front line card slot rather than the
I/O. If this occurs, the Matrix Controller sends an alarm to the host, indicating that resources are not available to the newly inserted line card. The alarmed card remains out of service until it can be removed from the system.

The major differences between the original CPU kernel and the EXNET-ONE are as follows:

• RAM is no longer battery-backed, but will not be corrupted by a push button or watchdog timer reset.

• Processor upgraded to PowerPC resulting in a new load image.

Card Set Differences

The following information defines specific differences between the original EXNET Controller card set and the EXNET-ONE.

• As mentioned above, a line card cannot be inserted into the front line card slot associated with EXNET-ONE and vice-versa. Typically, a blockout card should be installed in front of the EXNET-ONE card. If any card is installed in front of the EXNET-ONE card, the system sends an Alarm (0xB9) message to the host. The conflicting card remains out of service until it can be removed from the chassis. If the chassis is powered up with both an EXNET-ONE and a corresponding line card inserted, the line card is always given precedence.

• EXNET-ONE is also an I/O card.

• New Card ID (0x54)

• Image Load ID (0xE)

• New TFTP load type and binary file have been created for EXNET-ONE:

• EXNET-ONE TFTP Binary Image: exntone.bin

• EXNET-ONE TFTP Load Type: EXNETONE_LOAD

• EXNET-ONE card identifies itself as residing in a front line card slot to the system software and host. A line card is not allowed in the corresponding front line card slot, since the EXNET-ONE card identifies itself as residing in the front line card slot, not the I/O slot. This minimizes the amount of host changes needed to support the EXNET-ONE card.

The following is a sample line from a TFTP Configuration File:

EXNTONE_LOAD=c:\tftpboot\exntone.bin=SAVE_LOAD_FALSE ‘EXNET-ONE support

Refer to Creating a TFTP Configuration File for more information.

Installation Procedures

Follow the steps below to install the EXNET-ONE card.

1. Make necessary changes to application.

2. Allocate slot with open line card as well as I/O.

3. Put Blockout panel in line card slot.

4. Place EXNET-ONE into corresponding I/O slot.

5. Check EXNET-ONE front panel LED sequence for proper operation.