The modules are reloaded and the module software is downloaded from the new vss active chassis. Specifically ive been looking at the fsu and efsu upgrade processes. Find answers to cisco vss or vcp on gns3 or iou from the expert community at experts exchange. Watch this video to learn about allied telesis inservice software upgrade issu and how it allows you to upgrade the software on your switchblade x8100 series core. That is why the compatibility matrix says that the new version you are trying to use in incompatible.
See the restrictions for vss section for more information. The efsu sequence for a vss follows the same logical steps as the singlechassis efsu described in the enhanced fast software upgrade, but the procedure applies to the vss active and vss standby supervisor engine in each chassis, instead of two supervisor engines in one chassis. For modules that support efsu preload, the outage time for an efsu module warm reload is. This is a quick video on how i upgrade the ios on a cisco catalyst 4500x. Issu demonstration inservicesoftwareupgrade youtube. Hello team, i am planning an ios upgrade of a vss cluster with 6506evs720 10g. The documentation for the 6880x issu efsu is also quite poor when compared with the nexus issu documentation.
If the new cisco ios software image does not support efsu, you must manually upgrade the software image. Apply bug fixes and deploy new features and services through inservice upgrade of the complete cisco ios software image. Vss ios upgrade efsu way no luck although you have the same major release, you are still jumping a maintenance release version. To do so, you must upgrade the software image on the standby supervisor engine and then perform a manual switchover so that the standby takes over processing with the new image. Cisco vss or vcp on gns3 or iou solutions experts exchange. During an efsu, the vss standby chassis, including the. Cisco nexus 7000 seriesinservice software upgrade issu duration. Cisco switchingrouting 6509 vss ios upgrade jan 15, 2012. Forces the vss standby chassis to assume the role of the vss active chassis running the new cisco ios image. Make sure that the configuration register is set to allow autoboot the lowest byte of the register should be set to 2. Its great that cisco has a way of doing upgrades with minimal or no downtime, its just too bad it doesnt work well, and doesnt work at all between major versions from what i can find online. During the fsu procedure, a software version mismatch between the vss active and. Cisco sdwan was built to provide the best possible user experience as they access applications over the wan, and cisco application centric infrastructure cisco aci was created specifically for managing application workloads in data centers and clouds.
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