Operation Manual

AT-S7/AT-S9 Operations Manual

Permanent Virtual

Circuits

If connections are established manually through either network management

or remote communications, the channels are called Permanent Virtual

Circuits (PVCs). PVCs are implemented through either a management

program termed Omega or a remote management station. With this release,

each switch must have a PVC connection between itself and every other

switch.

Analogous to a leased or dedicated real circuits found in packet-based

networks, PVCs must be physically conﬁgured by a network administrator

from the ATM switch to both establish and maintain ATM connectivity.

LAN Emulation

An Emulated LAN (ELAN) allows you to configure a network through

software instead of rearranging physical cables.

ELANs are created and managed using Omega software management

screens.

Figure 5 shows a typical ATM network topology.

Figure 5: ATM Topology