Request Virtual-Chassis Routing-Engine Master Switch - Juniper EX9200 Features Manual

request virtual-chassis routing-engine master switch

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Copyright © 2017, Juniper Networks, Inc.
request virtual-chassis routing-engine master switch
<check>
Command introduced in Junos OS Release 11.2.
Option check introduced in Junos OS Release 12.2.
Command introduced in Junos OS Release 13.2R2 for EX Series switches.
Change the mastership in an MX Series Virtual Chassis or EX9200 Virtual Chassis by
switching the global roles of the master router or switch and backup router or switch in
the Virtual Chassis configuration. The
command must be issued from the master router or switch (VC-Mm).
(MX Series routers only) The local roles (
Engines in the Virtual Chassis master router change after a global switchover, but the
local roles of the Routing Engines in the Virtual Chassis backup router do not change. For
example, the master Routing Engine in the Virtual Chassis master router (VC-Mm)
becomes the standby Routing Engine in the Virtual Chassis backup router (VC-Bs) after
the global switchover. By contrast, the master Routing Engine in the Virtual Chassis
backup router (VC-Bm) remains the master Routing Engine in the Virtual Chassis master
router (VC-Mm) after the global switchover.
NOTE: Before you issue the
switch command from the master router or switch in the Virtual Chassis,
make sure that the system configuration is synchronized between the master
and backup router or switch. If the configuration is not synchronized, or if you
attempt to issue the
command from the backup router or switch instead of from the master router
or switch, the device displays an error message and rejects the command.
If you issue the
request virtual-chassis routing-engine master switch
when the Virtual Chassis is in a transition state (for example, the backup
router or switch is disconnecting from the Virtual Chassis), the device does
not process the command.
check —(Optional) Perform a check from the master router or switch to determine whether
the member routers or switches are ready for GRES from a database synchronization
perspective, without initiating the GRES operation itself.
system-control
Switching the Global Master and Backup Roles in a Virtual Chassis Configuration on
page 61
Chapter 12: Operational Commands: Administrative
request virtual-chassis routing-engine master switch
and
master standby
request virtual-chassis routing-engine master
request virtual-chassis routing-engine master switch
, or and ) of the Routing
m s
command
111