What's New in This Document

The following table describes changes to this guide for the Extreme 9920 software, release 21.1.1.0.

Table 1. Summary of changes

Feature	Description	Link
IPv6 support	IPv6 support is added for the following features: GNMI SSH TACACS+ Certificates SysLog Ping and Traceroute DNS	Secure Shell TACACS+ Server Authentication HTTPS Certificates Predefined Accounts and Roles
TACACS accounting enhancements	New keywords, exec and all are included for login accounting.	Configure Login Authentication Mode

For more information about this release, see the Extreme 9920 Software Release Notes, 21.1.1.0 .