Trunking - Hitachi US7070447-001 Troubleshooting Manual

Draft Level—Hitachi Confidential
*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.

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.
VLAN 1 & VLAN 2: VCC 501
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.
US7070447-001, Rev 01
SVC or PVC
VLAN 1: VCC 501
VLAN 2: VCC 502
PVC
HiSpeed switch
ATM PTOP
SVC or PVC
PVC
ATM Trunk
VLAN 1: VCC 501
VLAN 2: VCC 502
HiSpeed switch
VLAN 1 & VLAN 2: VCC 501
HiSpeed switch
Basic ATM Concepts
11-5