M20 Internet Router Overview - Juniper M Series Monitoring And Troubleshooting Manual

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M Series and T Series Routers Monitoring and Troubleshooting Guide

Table 5: M10i Router Major Hardware Components (continued)

Routing Engine

Documentation

M20 Internet Router Overview

Runs Junos OS ; maintains the routing

tables, manages the routing protocols

used on the router, controls the router's

interfaces, controls some chassis

components, and provides the interface

for system management and user access

to the router

Field-replaceable units (FRUs) are router components that can be replaced at the

customer site. Replacing FRUs requires minimal router downtime. There are three types

Hot-removable and hot-insertable—You can remove and replace the component

without powering down the router or interrupting the routing functions.

Hot-pluggable—You can remove the component without powering down the router,

but routing functions are interrupted until the replacement is installed.

Requires router shutdown—You must power down the router before removing the

M10i Multiservice Edge Router Overview on page 8

See the End-of-life (EOL) and End-of-sale (EOS) Notification Policy

and Procedures for the M20 router and products at

https://www.juniper.net/support/eol/. End of life (EOL) indicates that the

product has been removed from the price list and is no longer available for

purchase. End of support (EOS) indicates that no new support contracts are

available on these products and the last contract will expire on the EOS date

associated with each product. For more information about EOS or EOL

products, see the product support notification (PSN) hardware end-of-life

announcements.

The M20 Internet router provides dedicated access, public and private peering, and

hosting sites for medium core IP networks. The M20 router supports the Junos OS, which

provides router configuration and monitoring. (See

Hot-pluggable

Figure 4 on page