Channel parameters

Ds3 Channel Payload Type

The Ds3 Channel Payload Type parameter specifies the type of payload that is configured for the channel. The parameter appears only for OC3 or OC12 ASAP ports when the Channel Type parameter is set to SONET Sts1 (Sdh Au3) and the Sts1 Channel Payload Type parameter is set to PDH Ds3.

The options are:

• None (default)

• DS1

• E1

Edit ATM button

Click on the Edit ATM button to configure the ATM Interface parameters for the channel.

Edit ILMI Link button

Click on the Edit ILMI Link button to configure the ILMI link parameters for the ATM interface.

Edit PPP button

Click on the Edit PPP button to configure the keep-alive Period and Drop Count parameters for the channel.

Keep Alive (seconds)

The Keep Alive (seconds) parameter specifies the interval, in seconds, used to send periodic keepalive packets. The receiver process expects to receive a keepalive packet at every keepalive interval. The link is declared down if the receiver process does not receive a keepalive packet within the timeout interval. The link is declared up when the number of continual keepalive packets received equals the up-count. The nodes at the two endpoints of the cHDLC link should be provisioned with the same values. The range is 0 to 300. The default is 10.

Restore Keep-Alive Defaults

Click on the Restore Keep-Alive Defaults button to restore the default values of the keep-alive parameters for the ILMI link.

STs1 Channel Payload Type

The STs1 Channel Payload Type parameter specifies the type of payload that is configured for the channel.

The options are:

• SONET VT15 (SDH Tu11)

• PDH Ds3 (default)

Time Slots per DS0 Channel Group

The Time Slots per DS0 Channel Group parameter specifies the timeslots from the selected TDM port to be assigned to the channel group. The range is 1 to 24 for DS1 channel groups and 1 to 31 for E1 channel groups. If you set the parameter option to “0”, a DS0 channel group is not created.

For DS1 channel types, the maximum number of timeslots is 24 (that is, TS1-TS24). For E1 channel types, the maximum number of timeslots is 31 (that is, TS2-TS32). Depending on the TDM port selected, the NFM-P automatically creates the DS0 channel groups with the appropriate type of timeslots.

Assigned DS0 timeslots are greyed out with a check mark against the assigned timeslot.

Vt15 Channel Payload Type

The Vt15 Channel Payload Type parameter specifies the type of payload that is configured for the channel. The parameter appears only for OC3 or OC12 ASAP ports when the Channel Type parameter is set to SONET Sts1 (Sdh Au3) and the Sts1 Channel Payload Type parameter is set to SONET VT15 (SDH Tu11). The only option is PDH Ds1.