Hitachi US7070447-001 manual Trunking, 4. ATM PTOP, 5. ATM Trunk, Draft Level-Hitachi Confidential

Draft Level—Hitachi Confidential

Basic ATM Concepts

	SVC or PVC
VLAN 1: VCC 501	VLAN 1: VCC 501
VLAN 2: VCC 502	VLAN 2: VCC 502
	PVC
HiSpeed switch	HiSpeed switch

*When configuring a SVC connection, ensure the correct PTOP indexes are mapped to the switch you are connecting to. **When configuring a PVC connection, ensure the VCI values are identical on the switches you are connecting to.

***When configuring PVC connections through an ATM switch, ensure the bi-directional path is established per port/interface on the ATM switch.

****Valid PTOP index ranges from 0 through 15.

*****When configuring PVC, valid VCI values begin with 32.

Figure 11-4. ATM PTOP

Trunking

Trunking allows multiple VLANs to share the same virtual channel connection (VCC) using either Permanent Virtual Connections (PVCs) or Switched Virtual Connections (SVCs). Unlike PTOP, VLAN information is passed across ATM thereby simplifying configuration.

	SVC or PVC
VLAN 1 & VLAN 2: VCC 501	VLAN 1 & VLAN 2: VCC 501
	PVC
HiSpeed switch	HiSpeed switch

*When configuring a SVC connection, ensure the correct PTOP indees are mapped to the switch you are connecting to. **When configuring a PVC connection, ensure the VCI values are identical on the switches you are connecting to.

***When configuring PVC connections through an ATM switch, ensure the bi-directional path is established per port/interface on the ATM switch.

****Valid Trunk index ranges from 0 through 31.*****When configuring PVC, valid VCI values begin with 32.

Figure 11-5. ATM Trunk

US7070447-001, Rev 01 11-5