JUNOS Internet Software Network Operations Guide: Hardware
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M7i Router Components
In addition to accommodating up to four Physical Interface Cards (PICs), the M7i
router includes a built-in Fixed Interface Card (FIC) that provides two Fast Ethernet
ports or one Gigabit Ethernet port, depending on which FIC or which model was
ordered. For more information about Fast Ethernet and Gigabit Ethernet interfaces,
see the
M7i Internet Router PIC Guide
.
The M7i router supports various PICs, including ATM, channelized, Ethernet, IP
services, and SONET/SDH interfaces. For more information about supported PICs,
see the
M7i Internet Router PIC Guide
.
The M7i router provides a maximum aggregate throughput of 8.4 gigabits per
second (Gbps). Control operations in the router are perform Control operations in
the router are performed by the Routing Engine, which runs JUNOS software to
handle routing protocols, traffic engineering, policy, policing, monitoring, and
configuration management. Forwarding operations in the router are performed by
the Packet Forwarding Engine.
M7i Router Components
Table 4 lists the major M7i router components and characteristics.
Table 4: M7i Router Major Hardware Components
Component
Quantity
Function
Redundant
Field-
Replaceable
Offline
Button
CFEB
1
Provides route lookup, management of
shared memory, transfer of outgoing data
packets, and transfer of exception and
control packets; includes built-in tunnel
interface and optional Adaptive Services
PIC
–
Hot-pluggable
(routing functions
are interrupted
when removed)
Yes
Cooling system
1 fan tray
(4 fans)
Cools router components
–
Hot-removable,
hot-insertable
–
FIC
1
Receives incoming packets and transmits
outgoing packets to the network, displays
alarm status, and takes PICs online and
offline (2 Fast Ethernet or 1 Gigabit
Ethernet)
–
Built-in
PICs
On/Off
button
PIC
1–4
Provides interfaces to various network
media and performs framing and
line-speed signaling
–
Hot-removable,
hot-insertable
Yes
Power supply
2 AC or
2 DC
Distributes needed voltages to
components
Yes
Hot-removable,
hot-insertable
Yes
Routing Engine
1
Maintains the routing tables, manages the
routing protocols, controls the interfaces,
controls some chassis components, and
provides the interface for system
management and user access
–
Hot-pluggable
(routing functions
are interrupted
when removed)
Yes
Содержание JUNOS
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Страница 8: ...viii Abbreviated Table of Contents JUNOS Internet Software Network Operations Guide Hardware...
Страница 27: ...Table of Contents Table of Contents xxvii Part 12 Index Index 659...
Страница 28: ...xxviii Table of Contents JUNOS Internet Software Network Operations Guide Hardware...
Страница 36: ...JUNOS Internet Software Network Operations Guide Hardware xxxiv Requesting Support...
Страница 42: ...JUNOS Internet Software Network Operations Guide Hardware 6 Monitoring M5 and M10 Router Components...
Страница 46: ...JUNOS Internet Software Network Operations Guide Hardware 10 Monitoring M7i Router Components...
Страница 50: ...JUNOS Internet Software Network Operations Guide Hardware 14 Monitoring M10i Router Components...
Страница 54: ...JUNOS Internet Software Network Operations Guide Hardware 18 Monitoring M20 Router Components...
Страница 58: ...JUNOS Internet Software Network Operations Guide Hardware 22 Monitoring M40 Router Components...
Страница 80: ...JUNOS Internet Software Network Operations Guide Hardware 44 Monitoring T640 Routing Node Components...
Страница 124: ...JUNOS Internet Software Network Operations Guide Hardware 88 Using the Basic Monitoring Method...
Страница 126: ...JUNOS Internet Software Network Operations Guide Hardware 90 Monitoring Key and Common Router Components...
Страница 160: ...JUNOS Internet Software Network Operations Guide Hardware 124 Replacing a Failed Component...
Страница 198: ...JUNOS Internet Software Network Operations Guide Hardware 162 Removing a Routing Engine...
Страница 218: ...JUNOS Internet Software Network Operations Guide Hardware 182 Replacing an FPC...
Страница 232: ...JUNOS Internet Software Network Operations Guide Hardware 196 Replacing a PIC...
Страница 252: ...JUNOS Internet Software Network Operations Guide Hardware 216 Returning the Craft Interface...
Страница 310: ...JUNOS Internet Software Network Operations Guide Hardware 274 Replacing a Cooling System Component...
Страница 322: ...JUNOS Internet Software Network Operations Guide Hardware 286 Replacing the Cable Management System...
Страница 336: ...JUNOS Internet Software Network Operations Guide Hardware 300 Checking the Control Board Status...
Страница 426: ...JUNOS Internet Software Network Operations Guide Hardware 390 Replacing the CIP...
Страница 428: ...JUNOS Internet Software Network Operations Guide Hardware 392 Monitoring M40 Internet Router Specific Components...
Страница 440: ...JUNOS Internet Software Network Operations Guide Hardware 404 Monitoring M20 Internet Router Specific Components...
Страница 452: ...JUNOS Internet Software Network Operations Guide Hardware 416 Monitoring M7i and M10i Router Specific Components...
Страница 486: ...JUNOS Internet Software Network Operations Guide Hardware 450 Returning the FIC...
Страница 488: ...JUNOS Internet Software Network Operations Guide Hardware 452 Monitoring M5 and M10 Router Specific Components...
Страница 498: ...JUNOS Internet Software Network Operations Guide Hardware 462 Monitoring Redundant Router Components...
Страница 558: ...JUNOS Internet Software Network Operations Guide Hardware 522 Replacing a Power Supply...
Страница 578: ...JUNOS Internet Software Network Operations Guide Hardware 542 Returning Redundant Cooling System Components...
Страница 586: ...JUNOS Internet Software Network Operations Guide Hardware 550 Returning the SIB...
Страница 594: ...JUNOS Internet Software Network Operations Guide Hardware 558 Returning the SCG...
Страница 612: ...JUNOS Internet Software Network Operations Guide Hardware 576 Returning an MCS...
Страница 640: ...JUNOS Internet Software Network Operations Guide Hardware 604 Verifying That the Replaced PCG Is Online...
Страница 658: ...JUNOS Internet Software Network Operations Guide Hardware 622 Returning the CFEB...
Страница 666: ...JUNOS Internet Software Network Operations Guide Hardware 630 Returning an HCM...
Страница 667: ...Appendices 631 Part 11 Appendices Command Line Interface Overview on page 633...
Страница 668: ...JUNOS Internet Software Network Operations Guide Hardware 632 Appendices...
Страница 692: ...JUNOS Internet Software Network Operations Guide Hardware 656 CLI Configuration Mode...
Страница 693: ...Index 657 Part 12 Index Index on page 659...
Страница 694: ...JUNOS Internet Software Network Operations Guide Hardware 658 Index...