Avaya Configuring WAN Line Services Bedienungsanleitung PDF herunterladen (Seite 99)

Configuring HSSI Services

117345-B Rev. 00

5-7

Using Site Manager

See the Transmission Interface parameter on page A-15 for information.

Setting the External Clock Speed

The HSSI specification requires that the DCE provide a transmit clock that times

data transfer across the DTE/DCE interface. The External Clock Speed parameter

specifies the bandwidth that the HSSI channel provides.

The External Clock Speed value does not affect hardware initialization. Certain

routing protocols use this parameter value for route selection.

You can set the external clock speed to a rate from 307200 to 52638515 bytes.

Select a value equal or close to the data transmission rate across the HSSI. By

default, the HSSI clock rate is 46359642 (44.736 MB/s).

Using the BCC

external-clock-speed

integer

For example:

hssi/2/1# external-clock-speed 46359642

Using Site Manager

See the External Clock Speed parameter on page A-15 for information.

Setting the CRC Size

The CRC Size parameter specifies an error-detection scheme. You can choose

either 16 bit (standard ITU-T) or 32 bit (extended) to detect errors in the packet.

The remote end of the HSSI connection must be configured for the same CRC

size.

Set the CRC size for this HSSI interface.

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Avaya Configuring WAN Line Services Bedienungsanleitung Seite 99