McDATA 3000 manual Active VCI Bits Value Valid Enabled VPI Values

Configuring a 1x1 ATM Wide Area Network

13.Configure the PVC parameters for Node20 by entering the appropriate information in the following fields:

NOTE: If POS (Packet over SONET) is enabled, it is not necessary to enter values in the Virtual Path ID (VPI) and Virtual Channel ID (VCI) fields, they are not used for this protocol.

a.Enter the Virtual Path ID (VPI). The value that can be entered in this field is determined by the Active VCI Bits value. Initially the Active VCI Bits value is set to 11, only 0 and 1 are valid enabled VPI values. The default setting is 0.

Active VCI Bits Value	Valid Enabled VPI Values
12	Zero
11	Zero and 1
10	Zero through 3
4	Zero through 255

b.Enter the Virtual Channel ID (VCI). The value that can be entered in this field is determined by the Active VCI Bits value. Initially the Acitve VCI Bits value is set to 11, valid 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.

Configuring an E_Port Extension over an ATM WAN 7-19

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