If graceful routing engine switchover (GRES) or nonstop active routing (NSR) is enabled when you initiate a software installation, the software does not install properly.
#Els igrade upgrade
You can use this procedure to downgrade the software running on a switch.įor an EX6200 switch or an EX8200 switch with redundant Routing Engines, you can minimize disruption to network operation during a Junos OS upgrade by upgrading the Routing Engines separately, starting with the backup Routing Engine. Upgrade each Routing Engine manually-You can perform a Junos OS installation on each Routing Engine separately, starting with the backup Routing Engine.
#Els igrade software upgrade
You cannot use NSSU to downgrade the software running on a switch.įor more information about NSSU, see Understanding Nonstop Software Upgrade on EX Series Switches. The line cards are upgraded one at a time, so that traffic continues to flow through the other line cards while a line card is being upgraded. You can minimize disruption to network traffic by defining LAGs such that the member links of each LAG reside on different line cards. An NSSU takes advantage of GRES and NSR to ensure no disruption to the control plane. Perform an NSSU-An NSSU upgrades both Routing Engines with a single command and with a minimum of network disruption. You can install software on a switch with redundant Routing Engines in one of two ways: To upgrade software on an EX8200 Virtual Chassis, see Installing Software for All Devices in an EX8200 Switch Using Nonstop Software Upgrade (CLI Procedure). Redundant Routing Engines (CLI Procedure) or Upgrading Software on an EX6200 or EX8200 Standalone Routing Engines, see Installing Software on an EX Series Switch with To upgrade software on an EX6200 or EX8200 switch running two This procedure can be used to upgrade the following switchesĮX6200 switch (single Routing Engine upgrade only)ĮX8200 switch (single Routing Engine upgrade only)Īll Virtual Chassis except EX8200 Virtual Chassis To upgrade software on all EX Series Virtual Chassis, with the exception Routing engine in any EX Series switch, including all switches thatĭo not support redundant Routing Engines. You can use this procedure to upgrade Junos OS on a single Through the other line cards or members while that line card or member Members are upgraded one at a time, so that traffic continues to flow During an NSSU, the line cards and Virtual Chassis That the member links of each LAG reside on different line cards or To network traffic by defining link aggregation groups (LAGs) such NSSU takes advantage of graceful Routing Engine switchover (GRES) and nonstop active routing (NSR) to ensure no disruption You can also upgrade the software on a Virtual Chassis using Release to all member switches of a Virtual Chassis or to only a particular In a Virtual Chassis must be running the same version of Junos OS.įor ease of management, a Virtual Chassis provides flexible The Virtual Chassis operates asĪ single network entity composed of member switches. One unit and manage the unit as a single device, called a Virtual Chassis. You can connect individual EX Series switches together to form To the originally active installation when you reboot. If the software installation fails for any reason, suchĪs loss of power during the installation process, the system returns The previous software package is preserved inĪ separate disk partition, and you can manually revert back to it It retains configuration files,Īnd similar information, such as secure shell and host keys, from You are installing a domestic or controlled Junos OS package.ĭuring a successful upgrade, the upgrade package removes all You should following this procedure regardless of whether Upgrade, you should back up the new current configuration to a secondaryĭevice. The switch it boots from the upgraded software. To install the new software package on the switch. Use either the J-Web interface or the command-line interface (CLI) Package to your switch or another system on your local network, then You upgrade Junos OS on an EX Series switch by copying a software When you connect power to the switch, it starts Overview of the Software Installation ProcessĪn EX Series switch is delivered with a domestic version of
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