Description Globally disable Layer 3 forwarding between VLANs.
Syntax [no] vlan-global l3-vlan-fwd-disable
Default By default, the ACOS device can forward Layer 3 traffic between VLANs.
Usage This option is applicable only on ACOS devices deployed in gateway (route) mode. If the option to disable Layer 3 forwarding between VLANs is configured at any level, the ACOS device can not be changed from gateway mode to transparent mode, until the option is removed.
• Depending on the granularity of control required for your deployment, you can disable Layer 3 forwarding between VLANs at any of the following configuration levels:
• Global – Layer 3 forwarding between VLANs is disabled globally, for all VLANs. (Use this command at the Configuration mode level.)
• Individual interfaces – Layer 3 forwarding between VLANs is disabled for incoming traffic on specific interfaces.
• Access Control Lists (ACLs) – Layer 3 forwarding between VLANs is disabled for all traffic that matches ACL rules that use the l3-vlan-fwd-disable action.