The NSX Tier-0 Gateway router must be configured to use the Border Gateway Protocol (BGP) maximum prefixes feature to protect against route table flooding and prefix de-aggregation attacks.

The content of the drawer really is up to you. It could have form fields, definition lists, text lists, labels, charts, progress bars, etc. Spacing recommendation is 24px margins. You can put tabs in here, and can also make the drawer scrollable.