and 8–13 (slots 6 and 7 are reserved for SRP modules). In the ERX-310 router,
the line module slots are numbered 0–2 (slot 0 is reserved for the SRP module).
■
port
—Number of the port on the I/O module. On the CT3/T3 12 I/O and E3-12
FRAME I/O modules, ports are numbered 0–11.
For information about installing line modules and I/O modules in ERX routers, see
ERX Hardware Guide, Chapter 4, Installing Modules
.
References
For more information about T3 and E3 interfaces, consult the following resources:
■
RFC 1661—The Point-to-Point Protocol (PPP) (July 1994)
■
RFC 2364—PPP over AAL5 (July 1998)
■
RFC 2496—Definitions of Managed Objects for the DS3/E3 Interface Types
(January 1999)
■
RFC 2516—Method for Transmitting PPP over Ethernet (PPPoE) (February 1998)
■
RFC 2684—Multiprotocol Encapsulation over ATM Adaptation Layer 5 (September
1999)
■
ANSI T1.107a-1990 Standard for Telecommunications—Digital Hierarchy –
Supplement to Formats Specification (August 1990)
For more information about bit error test (BERT) patterns, see:
■
ITU O.151—Error performance measuring equipment operating at the primary
rate and above (October 1992)
■
ITU O.153—Basic parameters for the measurement of error performance at bit
rates below the primary rate (October 1992)
■
ANSI T1.404-1994 Standard for Telecommunications—Network-to-Customer –
DS3 Metallic Interface Specification (1994)
Before You Configure an Interface
Before you configure a T3 or an E3 interface, verify that you have installed the line
modules and I/O modules correctly.
You need the following information for each T3 controller:
■
Framing type
■
Clock source
■
Cable length
You also need HDLC channel information, such as data inversion information, for
interfaces that support HDLC.
50
■
References
JUNOSe 10.0.x Physical Layer Configuration Guide
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