On 7210 SAS chassis-based platforms (7210 SAS-R6 and 7210 SAS-R12), before a port can be configured, the slot must be preprovisioned with an allowed card type or the MDA must be preprovisioned with an allowed MDA type.
Some recommendations to configure a port include:
Ethernet
Configure an access port for customer facing traffic on which services are configured.
An encapsulation type may be specified to distinguish services on the port or channel. Encapsulation types are not required for network ports.
To configure an Ethernet access port, see Ethernet access port.
Configure a network port to participate in the service provider transport or infrastructure network.
To configure an Ethernet network port, see Ethernet network port.
Accounting policies can only be associated with network ports and Service Access Points (SAPs). Accounting policies are configured in the config>log>accounting-policy context.
When ports are preprovisioned, Link Aggregation Groups (LAGs) can be configured to increase the bandwidth available between two nodes. All physical links in a specific LAG combine to form one logical connection. A LAG also provides redundancy in case one or more links that participate in the LAG fail. For command syntax, see Configuring LAG parameters.