JUNOS Internet Software Network Operations Guide: Hardware
480
!
Manually Configuring Master and Backup Routing Engines
!
Backup—If a Routing Engine is configured to be the backup, it does not
maintain routing tables or communicate with Packet Forwarding Engine or
chassis components. However, it runs through its memory check and boot
sequence to the point of displaying a login prompt. A backup Routing Engine
supports full management access through the Ethernet, console, and auxiliary
ports, and can communicate with the master Routing Engine. Additionally, a
backup Routing Engine responds to the Routing Engine
request chassis
routing-engine master switch
command. The backup Routing Engine maintains a
connection with the master Routing Engine and monitors the master Routing
Engine. If the connection is broken, you can switch mastership by entering the
switchover
command. If the master Routing Engine is hot-swapped out of the
system, the backup takes over control of the system as the new master Routing
Engine. Once a Routing Engine becomes master, it resets the switch plane and
downloads its own version of the microkernel to the Packet Forwarding Engine
components.
!
Disabled—A disabled Routing Engine has progressed through its memory check
and boot sequence to the point of displaying a login prompt (similar to backup
state) but does not respond to a
request chassis routing-engine master switch
command. A Routing Engine in disabled state supports full management access
through the Ethernet, console, and auxiliary ports, and can communicate with
the master Routing Engine. A disabled Routing Engine does not participate in a
mastership election. To move from disabled state to backup state, the Routing
Engine must be reconfigured to be the backup Routing Engine.
Action
To configure
RE1
to be the default master, issue the following CLI command in
configuration mode at the [
edit
] hierarchy level:
For slot 0:
[edit]
user@host#
set chassis redundancy routing-engine 1 master
[edit]
user@host#
commit
For slot 1:
[edit]
user@host#
set chassis redundancy routing-engine 0 backup
[edit]
user@host#
commit
Action
To view the Routing Engine mastership/backup status, use the following CLI
command in operational mode:
user@host>
show chassis routing-engine
Содержание JUNOS
Страница 4: ...iv Juniper Networks Inc 1194 North Mathilda Avenue Sunnyvale CA 94089 USA Attn Contracts Administrator...
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...