C9500-24Y4C Compatibility for rommon

[sivasubramanian]

Hi, Need to know the Compatibility Matrix for rommon and IOSXE of C9500-24Y4C. Current version of IOSXE and Rommon is 16.9.3 & 16.9.1r [FC3]. Expected to 17.6.4, need to know the rommon version and upgrading steps.

Kindly suggest!!! 

[ammahend]

https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst9500/software/release/17-3/release_notes/ol-17-3-9500.html

[balaji.bandi · Accepted solution]

For IOS X 17.6.4 you have ROMMON - 

System Bootstrap, Version 17.4.1r[FC2]

On the C9500-24Y4C, C9500-32C, C9500-32QC, and C9500-48Y4C models of the series, this ROMMON is upgraded automatically. When you upgrade from an existing release on your switch to a later or newer release for the first time, and there is a new ROMMON version in the new release, the system automatically upgrades the ROMMON in the primary SPI flash device, based on the hardware version of the switch.

Follow below release notes and upgrade steps : (if this SVL follow the steps as guided).

https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst9500/software/release/17-6/release_notes/ol-17-6-9500.html#concept_ycv_jdf_3mb

[Leo Laohoo]

9500 switch will auto-upgrade the ROMMO/micro-code. 

Cisco has developed a new process called the Golden Capsule and there is no real benefit to upgrade the Golden Capsule.