McDATA 3000 manual Active VCI Bits Value Valid Enabled VCI Values

Configuring a 1x1 ATM Wide Area Network

enabled VCI values are in the range of 0 to 2047. The values of 3 and 4 are reserved for Operations and Management (OAM) traffic. A value must specified, there is no default value.

Active VCI Bits Value	Valid Enabled VCI Values
12	Zero through 4095
11	Zero through 2047
10	Zero through 1023
4	Zero through 15

c.Check the box to Enable POS (Packet over SONET) for the ATM interface.

This enables the direct encapsulation of packets via SONET framing. POS uses PPP to encapsulate the data. POS is disabled by default.

If enable Packet Over SONET (POS) for this ATM interface, the Virtual Path ID (VPI) and Virtual Channel ID (VCI) fields on this dialog box will be disabled, because the ATM protocol does not use the VPI and VCI for POS.

d.Select the Quality of Service from the drop-down menu.

•CBR - (Constant Bit Rate)

•VBR - (Variable Bit Rate)

•UBR - (Unspecified Bit Rate)

NOTE: McDATA recommends using CBR for ATM implementations. The best performance obtained during testing was with Constant Bit Rate (CBR).

e.Select either the 103 cells/sec or the 106 bits/sec cell rate.

•Select 103 cells/sec to enter the Peak Cell Rate and Sustained Cell Rate values in Kcells per second.

•Select 106 bits/sec to enter the Peak Cell Rate and Sustained Cell Rate values in Mbps.

Switching between the 103 cells/sec and 106 bits/sec buttons will toggle the entered values between the Kcells per second and Mbps per second formats. The 103 cells/sec option is the default selection, so when you reopen the dialog box, the 103 cells/sec option will be selected.

Configuring an E_Port Extension over an ATM WAN 7-15

7