Cabletron Systems ZX-250 Connecting to Local Switch Client Through a PVC, Non-zero VPIs, 10.1.1.0

PVC Connections Switch Administration

–•Configure the workstations for the same subnet and VPI/VCI pair = 0/101.

The broadcasting workstation on port A1 can send traffic to the receiving workstations on ports B2, B3, and C1.

4.5.3Connecting to Local Switch Client Through a PVC

All PVC connections to the SmartCell ZX-250 local clients use B4 (the CPU port) as the HighPort.

Follow these instructions to connect an end node to a SmartCell ZX-250 local client through a point-to-point PVC. s• Use add pvc to create the PVC.

SmartCell ZX # add pvc
ConnType(PTP)	:	<we use a point-to-point PVC
LowPortID()	: a1	<for this example, we connect through port a1
LowVPI()	: 0
LowVCI()	: 100
HighPortID()	: b4	<HighPort must be b4
HighVPI()	: 0
HighVCI()	: 100
FwdTrafficDescriptorIndex()	: 2
BkwTrafficDescriptorIndex()	: 2

SmartCell ZX #

¢• Use add ipatmclient to create the IP over ATM local client.

SmartCell ZX # add ipatmclient
ClientNumber(0)	: 2	<we use client # 2 in this example
ServerType(NONE)	: local	<ARP server on the switch
ServerAddress()	:
IPAddress()	: 10.1.1.0
NetMask(255.0.0.0)	:
MTU(9180)	:
SmartCell ZX #

••Use add ipatmpvc to associate the end node’s IP address with the PVC.

SmartCell ZX # add ipatmpvc
ClientNumber(0)	: 2	<specify local client number
DestinationIP()	: 10.1.1.22 <end node’s IP address
DestinationVPI(0)	:
DestinationVCI(33)	: 100	<VCI was specified as 100
SmartCell ZX #

T• Connect the end node to port A1 of the SmartCell ZX-250.

Q• Configure the end node with IP address 10.1.1.22, subnet mask 255.0.0.0, and VPI/VCI pair = 0/100.

4.5.4Non-zero VPIs

The SmartCell ZX-250 uses 12 bits to define VPI/VCI pairs. The vccmask determines how many of the 12 bits are used for the VPI and how many are used for the VCI. The vccmask uses a 2-bit register to hold four different VPI/VCI 12-bit combinations. Table 4-1shows the registers and the values that come preconfigured on the SmartCell ZX-250.

4-14 SmartCell ZX-250 User Guide