AMX TXC32 Plus User Manual download pdf (Page 9)

TELDAT ROUTER - Frame Relay

I - 5

Doc.DM703-I

Rev.10.00

Router

DLCI 19

Router

Physical Connection

Logical Connection

Frame

Relay

Backbone

Figure 2 DLCIs in Frame Relay Networks

2.3. Orphan Circuits

An orphan circuit is any PVC that is not configured for your router but is learned indirectly through

the actions of the network management entity. For example, Figure 3 assumes that router B has a

configured PVC to router D, but none to router A. Router A configures a PVC to router B. Router B

would then learn about the PVC to router A and classify it as an orphan.

Orphan circuits are treated the same as configured circuits except that you may enable or disable their

use with the ORPHAN-CIRCUITS and NO ORPHAN-CIRCUITS commands.

By disabling orphan circuits, you add a measure of security to your network by preventing any

unauthorized entry into your network from a non-configured circuit.

By enabling orphans circuits, you allow the router to forward packets over circuits you did not

configure. Packets that would normally be dropped are now forwarded.

1 2 3 4 5 6 7 8 9 10 ... 63

No comments

AMX TXC32 Plus User Manual Page 9