Release Notes

ETHX-SHDSL-1-LT-P-EU|UK|US, ETHX-SHDSL-1-LT-S-EU|UK|US, ETHX-SHDSL-2-LT-P-EU|UK|US and ETHX-SHDSL-2-LT-S-EU|UK|US

ETHX-21xx

Firmware Version 1.00.03

New Features and Enhancements

New Features

• The 'show' and 'set' CLI commands now display the boot ROM version in addition to the main application version. Also indicated are Subscriber and Provider modes.
  
• The SHDSL-specific CLI commands now work via telnet.
  
• The NVRAM can now be cleared via manipulation of the external dip switches at boot. Please refer to the instructions listed below.
  

Bug Fixes

• Fixed an issue where the 10/100BT LAN ports could not be manually configured using DIP switches #5-#7. This resulted in the LAN ports remaining in auto-negotiate mode independent of these switch settings.
  
• Fixed an issue where the Tx and Rx leads of the LAN ports were reversed relative to other IPD and Ethernet Extender (ETHX) products.
  

Procedure to clear NVRAM:

Perform the following procedures to clear NVRAM and restore it to the factory default settings. This procedure will typically be required if the device has had the default password and/or the default IP address changed and the user wishes to restore these to the factory default settings.

1. Set the external dip switches in an up-down alternating pattern:
Switch #1 = UP
Switch #2 = DOWN
Switch #3 = UP
Switch #4 = DOWN
Switch #5 = UP
Switch #6 = DOWN
Switch #7 = UP
Switch #8 = DOWN
2. Power cycle the device.
3. During the boot cycle, the SHDSL LEDs on the front panel will begin flashing in a repeating cascade pattern. This continues for ten seconds.
4. While the LEDs are flashing, move dipswitch #8 from the "DOWN" to the "UP" position.
5. When this is done, the SHDSL LEDs will stop flashing and remain lit for 5-6 seconds. This indicates that the NVRAM is being cleared. After that, the device will reboot.
6. Reset the dipswitches for the desired configuration / operating modes, and power cycle the device once more. Note that dipswitch #8 is only used for this procedure, and should otherwise be set to the DOWN position after this procedure is completed

Note that if dipswitch #8 is not changed while the LEDs are flashing in step #4 above, then the boot sequence will continue as normal and the NVRAM will not be cleared. If the dipswitches are not configured in the up-down pattern at boot, then the flashing will not occur and the boot sequence will proceed as normal.

Known Restrictions and Limitations

The following are known issues and limitations of Version 1.00.02:

SHDSL.bis Data Rates Supported

• The EtherXtend SHDSL LT supports all data rates from 192 through 5,696 Kbps, in increments of 64 Kbps. Not all 8 Kbps sub-rate increments are supported.
  

ESIM5700-48 Interop:

• Circuits will not train in Adaptive Mode at approximately 17 Kft if connected to an ESIM5700-48 card. If a customer experiences this problem, they should use fixed rate mode for problem circuits.
  
• When interconnecting to an ESIM5700 card in fixed rate mode and set to 3648, 3584, 3456, 3264, or 3200 Kbps, customers will need to manually set the ESIM5700 constellation to TCPAM32 to get the circuits to successfully train at these rates.
  
• Circuits will not train with an ESIM5700 card when set to a fixed rate mode of 3776 Kbps.
  

SIM2000-24 Interop:

• When interconnecting to a SIM2000-24 card at a fixed rate mode of 784 Kbps, Rx errors can occur at approximately 15 Kft, 19 Kft and 20Kft loop lengths.
  

ETHX-SHDSL-4|8 Access Device:

• When interconnecting to an ETHX-SHDSL-4|8 EtherXtend Access Device using Adaptive Rate mode, the two SHDSL circuits (on a 2-port ETHX-21xx device) may train at different rates at approximately 4Kft and 11Kft loop lengths. When this occurs, upstream bandwidth (to the ETHX-SHDSL-4|8 device) is typically not affected, but downstream throughput can be impaired. If a customer encounters this issue, they should use fixed rate mode to ensure that both circuits train at the same rate.
  

Compatibility Issues

Firmware version 1.00.03 is not compatible with units that have a BOOT code version lower than 1.00.03. This is mostly limited to pre-GA units shipped prior to June 22, 2007. Any unit with older BOOT code will need to have the PROM updated before upgrading to this or any future releases.

Release History

• Version 1.00.02, Jul 17, 2007
  

• Version 1.00.01, Jun 15, 2007
  

ETHX-21xx rev10003