Cisco PA-T3 Specifikace stáhnout pdf (Strana 69)

Configuring the PA-T3 Interfaces 8-25

Using the loopback Command to Verify the Physical Interface

• Set the interface into local loopback mode as follows:

Router# configure terminal

Enter configuration commands, one per line. End with CNTL/Z.

router(config)# interface serial 6/0

router(config-if)# loopback local

Local loopback loops the router output data back toward the router at the framer.

• Set the interface into network line loopback mode as follows:

Router# configure terminal

Enter configuration commands, one per line. End with CNTL/Z.

router(config)# interface serial 6/0

router(config-if)# loopback network line

Network line loopback loops the data back toward the network (before the framer).

• Set the interface into network payload loopback mode as follows:

Router# configure terminal

Enter configuration commands, one per line. End with CNTL/Z.

router(config)# interface serial 6/0

router(config-if)# loopback network payload

Network payload loopback loops just the payload data back toward the network at the PA-T3

framer.

• Set the interface into remote loopback mode as follows:

Router# configure terminal

Enter configuration commands, one per line. End with CNTL/Z.

router(config)# interface serial 6/0

router(config-if)# loopback remote

Remote loopback loops the data back toward the network (before the framer at the remote

T3 device).

Note Remote loopback mode works with C-bit framing only. The other loopback modes listed

above work with C-bit, M13, and bypass framing. See the “Specifying T3 Framing” section on

page 8-13 for information on conﬁguring C-bit framing.

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Cisco PA-T3 Specifikace Strana 69