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JUNOS OS 10.4 Release Notes
Related
Documentation
206
10.0 or 9.3. To downgrade from Release 10.4 to 8.5, you first need to downgrade to 10.0
or 9.3, and then perform a second downgrade to Release 8.5.
For upgrades and downgrades to or from a non-EEOL release, the current policy is that
you can upgrade and downgrade by no more than three releases at a time. This policy
remains unchanged.
For more information on EEOL releases and to review a list of EEOL releases, see
http://www.juniper.net/support/eol/junos.html
Upgrading or Downgrading from Junos OS Release 9.4R1 for EX Series Switches
The ARP aging time configuration in the
9.4R1 is incompatible with the ARP aging time configuration in Junos OS Release 9.3R1
or earlier and Junos OS Release 9.4R2 or later. If you have configured
aging-timer aging-time
on EX Series switches running Junos OS Release 9.4R1 and upgrade
to Junos OS Release 9.4R2 or later or downgrade to Junos OS Release 9.3R1 or earlier,
the switch will display configuration errors on booting up after the upgrade or downgrade.
As a workaround, delete the
configuration stanza and reapply the configuration after you complete the upgrade or
downgrade.
The format of the file in which the EX4200 Virtual Chassis topology information is stored
was changed in Junos OS Release 9.4. When you downgrade Junos OS Release 9.4 or
later running on EX4200 switches in a Virtual Chassis to Junos OS Release 9.3 or earlier,
make topology changes, and then upgrade to Junos OS Release 9.4 or later, the topology
changes you have made using Junos OS Release 9.3 or earlier are not retained. The switch
restores the last topology change you have made using Junos OS Release 9.4.
Upgrading from Junos OS Release 9.3R1 to Release 10.4 for EX Series Switches
If you are upgrading from Junos OS Release 9.3R1 and have voice over IP (VoIP) enabled
on a private VLAN (PVLAN), you must remove this configuration before upgrading, to
prevent upgrade problems. VoIP on PVLAN interfaces is not supported in releases later
than Junos OS Release 9.3R1.
New Features in Junos OS Release 10.4 for EX Series Switches on page 187
Changes in Default Behavior and Syntax in Junos OS Release 10.4 for EX Series Switches
on page 189
Limitations in Junos OS Release 10.4 for EX Series Switches on page 190
Outstanding Issues in Junos OS Release 10.4 for EX Series Switches on page 195
Resolved Issues in Junos OS Release 10.4 for EX Series Switches on page 199
Errata in Documentation for Junos OS Release 10.4 for EX Series Switches on page 203
.
system
configuration stanza in Junos OS Release
arp aging-timer aging-time
system arp
configuration in the
system
Copyright © 2011, Juniper Networks, Inc.
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