In the left navigation pane, go to Node Interfaces > Ports.
To modify a Port:
The Identification/Status Panel controls the network identity of the port and its administrative state (Up or Down). It also provides the port's current service status and indicates when that status last changed.
Specifies an alias for the port. This text is configured by the operator for exclusive use by SNMP-based element and network management systems to assign a key to the port or interface that is unique across the managed network. Examples would be "Node10Port5" and "VerizonPort5".
Specifies a description for the port. Maximum entry: 128 characters.
Specifies the administrative state of the port.
Specifies the loop back status of the port.
Loopback is used when testing the line so that any potential fault can be isolated to a particular section of the line. The various loop types control the point at which the loop happens and helps narrow down the faulty section of the line. The Line type is the only loopback type available for T1.
Loopback disrupts normal traffic on the line. Consequently, the loopback type option should be set to None when not actively performing troubleshooting activities related to the associated port.
The Physical/Data Layer panel is used to specify the Layer 1 and Layer 2 properties of the port.
Specifies the signaling type for the port: ISDN or CAS.
Specifies the line coding for the port.
Specifies whether or not to use CRC4 checking.
Note: If CRC is not configured the same way at each end of the line, an E1 line may not come up. Be sure that the CRC4 configurations at each end match.
To enable a Port:
To disable a Port: