This page documents the interface naming conventions used in DIGITAL GIGAswitch/IP equipment. The basic physical ID identifies the interface type and provides information about its slot, port, and channel number. The physical ID syntax is as follows:
<type[atm][eth][fddi]>-s<slot#>p<port#>c0
The channel number (c0) is always zero.
The diagram below shows a small setup with a gateway, a switch and a controller/switch:
Note: With the exception of the gateway ports all
other ports are viewed from the controller.
Gateway: In the gateway the port names are easy to understand. Ports are named (slot-port-channel). For example the Ethernet in slot 3, port 1 is named eth-s3p1c0, and the ATM link is atm-s1p1c0.
Controller: Things get a bit more complicated in the controller. To best understand the port names you must place the point of reference at the controller. GSMP ports look just like IFMP ports, but are never configured. In our example above the following interfaces exist in the controller
Things get even more complicated with switch ports added: