Switch Administration

Setting Up PVC Connections

For example, change VCCMask indexed combination zero (0) from VPI = 0 bits and VCI = 12 bits to

VPI = 3 bits and VCI = 9 bits.

1.Use set vccmask to change the VPI/VCI values to 3/9.

SmartCell ZX # set vccmask

 

 

MaskIndex(0)

: <replace the first VPI/VCI pair

VPIShift(0)

:

3

VCIShift(12)

:

9

SmartCell ZX #

 

 

2.Use the show vccmask command to see the new VPI/VCI combination.

SmartCell ZX # show vccmask

MaskIndex VpiShift VciShift

(In bits)

(In bits)

============================================================================

0

3

9

<for index 0, VPI/VCI now equals 3/9

1

2

10

 

2

4

8

 

3

6

6

 

SmartCell ZX #

3.Use the set portconfig command to reconfigure a port to use the new values for VPI and VCI. For example, to set up a PVC on port A1 using the new VPI/VCI bit ranges (3/9), enter

SmartCell ZX # set portconfig a1

 

 

MaxVPIBits(0)

: 3

MaxVCIBits(12)

:

9

InterfaceAddressType(PRIVATE)

:

 

Trying to change VPI/VCI bits. This might affect existing PVCs.

Proceed any way?

Confirm(y/n)?:y

SmartCell ZX #

4.Use show portconfig to see the change to port A1.

SmartCell ZX # show portconfig a1

Port A1 Configuration

============================================================================

Port Id

 

 

: A1

Port Admin

State

: ACTIVE

Port QSAAL

State

: UP

Port Operational State

: UP

Transmission Type

: STS-3c

Media Type

 

: MMF

Address

Type

: PRIVATE

Active VPI

Bits

: 2

Active VCI

Bits

: 10

Configured

VPI Bits

: 3 <VPI on port A1 can now be any 3-bit number

Configured

VCI Bits

: 9 <VCI on port A1 can now be any 9-bit number

Current

VPI Bits

: 2

Current

VCI Bits

: 10

Current

In

Use VCCs

: 3

Current

Max VCCs

: 4096

SmartCell ZX #

PVCs can be configured for port A1 using VPI values from 0 to 7 and VCI values from 0 to 511.

Note Do not set the VCI part of the VCCMask to fewer than 5 bits.

SmartCell 6A000 User Guide 4-17

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Cabletron Systems SmartCell 6A000 manual SmartCell ZX # set portconfig a1, SmartCell ZX # show portconfig a1