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JUNOS Cookbook by Aviva Garrett

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7.20. Configuring a SONET Interface

Problem

Your want to configure a SONET OC192 interface.

Solution

Use the following commands for a basic configuration:

	[edit interfaces so-4/0/0]
	aviva@t320# set description "JUNOS cookbook SONET OC192 interface"
	aviva@t320# set unit 0 family inet address 192.0.4.1/24

Discussion

Synchronous Optical Network ( SONET) is a high-speed fiber-optic transmission that was developed in the 1980s by Bellcore and is the American standard of the CCITT Synchronous Digital Hierarchy (SDH) standard for a hierarchy of optical transmission rates. SONET uses LEDs or lasers to transmit bits with pulses of light.

The basic building block of the SONET/SDH hierarchy in the optical domain is an OC1; in the electrical domain, it is an STS1. An OC1 operates at 51.840 Mbps. Common SONET speeds are OC3 (155.52 Mbps), OC12 (622.08 Mbps), OC48 (2.488 Gbps), and OC192 (9.953 Gbps), and the JUNOS software supports a variety of SONET PICs for all these interface speeds.

In this recipe, we are configuring the SONET OC192 PIC in slot 4 of a T320 router:

	aviva@t320> show chassis hardware
	Hardware inventory:
	Item            Version   Part number   Serial number   Description
	Chassis                                 19086           T320
	…
	FPC 4           REV 01    710-005803    AZ2121          FPC Type 3
	  CPU           REV 09    710-001726    AY4902          FPC CPU
	  PIC 0         REV 01    750-004535    HC0276          1x OC-192 SM SR1
	  PIC 1         REV 03    750-003336    HJ9955          4x OC-48 SONET, SMSR
	  MMB 1         REV 01    710-005555    AZ2192          MMB-288mbit
	…

The basic configuration is straightforward. You just need an IP address. Use the ...

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