Juniper M Series User Manual

Table 159: Checklist for Monitoring the CFEB (continued)
Command or ActionMonitor CFEB Tasks
See “Return the Failed Component” on page 116
or follow the procedure in the appropriate
hardware guide.
Return the CFEB
Related
Documentation
Redundant CFEBs Overview on page 730•
Redundant CFEBs Overview
Monitor redundant CFEBs so they can provide route lookup, filtering, and switching on
incoming data packets and direct outbound packets to the appropriate interface for
transmission to the network.
Two CFEBs are installed in the M10i router. The M10i router CFEB processes 16 Mpps.
The CFEB performs the following functions:
•
Route lookups—Performs route lookups using the forwarding table stored in the
synchronous SRAM (SSRAM).
•
Shared memory management—Uniformly allocates incoming data packets throughout
the router’s shared memory.
•
Outgoing data packets transfer—Passes data packets to the destination FIC or PIC
when the data is ready to be transmitted.
•
Exception and control packet transfer—Passes exception packets to the microprocessor
on the CFEB, which processes almost all of them. The rest are sent to the Routing
Engine for further processing. Any errors originating in the Packet Forwarding Engine
and detected by the CFEB are sent to the Routing Engine using system log messages.
•
(M7i router only) Built-in tunnel interface—Encapsulates arbitrary packets inside a
transport protocol, providing a private, secure path through an otherwise public network.
The built-in tunnel interface on the CFEB is configured the same way as a PIC. For
information about configuring the built-in tunnel interface, see the Junos OS Network
Interfaces and Class of Service Configuration Guide.
•
(M7i router only) Optional Adaptive Services PIC–Integrated (ASP–I)—Provides one
or more services on one PIC. See “ Adaptive Services PIC–Integrated (ASP–I)” on page
11 for more information.
One or two CFEBs can be installed into the midplane from the rear of the chassis, as
shown in Figure 341 on page 731. Only one CFEB is active at a time; the optional second
CFEB is in standby mode. By default, the CFEB in slot CFEB 0 is active. To modify the
default, include the appropriate cfeb statement at the [edit chassis redundancy] hierarchy
level of the configuration, as described in the section about CFEB redundancy in the Junos
OS System Basics Configuration Guide.
Copyright © 2012, Juniper Networks, Inc.730
M Series and T Series Routers Monitoring and Troubleshooting Guide

Juniper M Series Specifications

General

Brand	Juniper
Model	M Series
Category	Network Router
Language	English