Container Interfaces Overview; Understanding Traditional Aps Concept; Container Interfaces Concept; Aps Support For Container-Based Interfaces - Juniper JUNOS 10.1 - CONFIGURATION GUIDE 1-2010 Configuration Manual

JUNOS 10.1 Network Interfaces Configuration Guide
Related Topics

Container Interfaces Overview

Container interfaces provide the following features:
NOTE: Paired groups and true unidirectional APS are not currently supported.
Container interfaces features are described in the following sections:

Understanding Traditional APS Concept

Traditional APS is configured on two independent physical SONET interfaces: one
configured as the working circuit and the other as the protect circuit (see Figure 1
on page 38). The circuit, named Circuit X in the figure, is the link between the two
SONET interfaces.

Figure 1: APS Interface

Traditional APS uses routing protocols that run on each individual SONET interface
(since circuit is an abstract construct, instead of being an actual interface). When the
working link goes down, the APS infrastructure brings up the protect link and its
38
Container Interfaces Overview
Types of Interfaces Overview on page 32
APS on SONET links are supported using container infrastructure.
Container physical interfaces and logical interfaces remain up on switchover.
APS parameters are auto-copied from the container interface to the member
links.
Understanding Traditional APS Concept on page 38
Container Interfaces Concept on page 39
APS Support for Container-Based Interfaces on page 39
Autocopy of APS Parameters on page 39