Cisco Systems 7304 manual Configuring Framing, Verifying Framing Configuration, M13, G832, 13-12

Chapter 13 Configuring the 2-Port and 4-Port T3/E3 SPAs

Configuration Tasks

Configuring Framing

Framing is used to synchronize data transmission on the line. Framing allows the hardware to determine when each packet starts and ends. To configure framing, use the following commands.

Command	Purpose
Router# configure terminal	Enters global configuration mode.
Router(config)# interface serial slot/subslot/port	Selects the interface to configure.
	• slot/subslot/port— Specifies the location of the
		T3/E3 interface. See the: “Specifying the
		Interface Address on a SPA” section on
		page 13-5
T3:	Sets the framing on the interface.
Router(config-if)# framing {bypass c-bit	• bypass—Configure framing bypass to use the
m13}		full T3 or E3 bandwidth
E3:	• c-bit—Specifies C-bit parity framing. This is
Router(config-if)# framing {bypass g751		the default for T3.
g832}	•	m13—Specifies M13 framing.
	• g751— Specifies g751 framing. This is the
		default for E3.
	•	g832—Specifies g832 framing.

Verifying Framing Configuration

Use the show controllers serial command to display the framing method:

router# show controllers serial 6/0/0 Serial6/0/0 -

Framing is c-bit, Clock Source is Line

Bandwidth limit is 44210, DSU mode 0, Cable length is 10 rx FEBE since last clear counter 2, since reset 0

Data in current interval (546 seconds elapsed):

0 Line Code Violations, 0 P-bit Coding Violation 0 C-bit Coding Violation

0 P-bit Err Secs, 0 P-bit Sev Err Secs

0 Sev Err Framing Secs, 0 Unavailable Secs

0 Line Errored Secs, 0 C-bit Errored Secs, 0 C-bit Sev Err Secs Data in Interval 1:

0 Line Code Violations, 0 P-bit Coding Violation 0 C-bit Coding Violation

0 P-bit Err Secs, 0 P-bit Sev Err Secs

0 Sev Err Framing Secs, 0 Unavailable Secs

0 Line Errored Secs, 0 C-bit Errored Secs, 0 C-bit Sev Err Secs

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	Cisco 7304 Router Modular Services Card and Shared Port Adapter Software Configuration Guide
13-12	OL-4807-02