Configuration considerations for IPv6 IS-IS MT

The following configuration considerations apply for IPv6 IS-IS MT

• The wide metric style must be configured before enabling IPv6 IS-IS MT.
• IPv4, IPv6, or IPv4 and IPv6 configured on the same interface must run on the same IS-IS level.
• Enabling or disabling IPv6 IS-IS MT clears all adjacencies, LSP databases, and IPv6 IS-IS routes.
• All routers on a point-to-point or a broadcast interface must support at least one common topology (IPv4 or IPv6), when MT is enabled.