Port Naming Conventions

The physical interfaces supported by Pica8 switch are shown in Table 1:

Table 1. Physical Interface Supported by Pica8 Switch

Interface Type	Description
GE interface	The GE interface works at the data link layer, provides a maximum transmission rate of 1000 Mbit/s, processes Layer 2 protocol packets, and implements Layer 2 forwarding.
5GE/2.5GE interface	The 5GE/2.5GE interface works at the data link layer, provides a maximum transmission rate of 10 Gbit/s, processes Layer 2 protocol packets, and implements Layer 2 forwarding.
10GE interface	The 10GE interface works at the data link layer, provides a maximum transmission rate of 10 Gbit/s, processes Layer 2 protocol packets, and implements Layer 2 forwarding.
25GE interface	The 25GE interface works at the data link layer, provides a maximum transmission rate of 25 Gbit/s, processes Layer 2 protocol packets, and implements Layer 2 forwarding.
40GE interface	The 40GE interface works at the data link layer, provides a maximum transmission rate of 40 Gbit/s, processes Layer 2 protocol packets, and implements Layer 2 forwarding. A 40GE optical interface can work as an independent interface or be split into four 10GE optical interfaces.
100GE interface	The 100GE interface works at the data link layer, provides a maximum transmission rate of 100 Gbit/s, processes Layer 2 protocol packets, and implements Layer 2 forwarding. A 100GE optical interface can work as an independent interface or be split into four 10GE optical interfaces or four 25GE optical interfaces.
200GE interface	The 200GE interface works at the data link layer, provides a maximum transmission rate of 200 Gbit/s, processes Layer 2 protocol packets, and implements Layer 2 forwarding. A 200GE optical interface can work as an independent interface or be split into four 25GE optical interfaces, two 50GE optical interfaces, four 50GE optical interfaces or two 100GE optical interfaces.
400GE interface	The 400GE interface works at the data link layer, provides a maximum transmission rate of 400 Gbit/s, processes Layer 2 protocol packets, and implements Layer 2 forwarding. A 400GE optical interface can work as an independent interface, be split into two 200GE or be split into four 100GE optical interfaces.

Physical interfaces naming in PICOS are specified as follows:

type-1/1/port

The convention is as follows:

type - The Pica8 device interfaces use the following types:
- ge - 1G/5G/2.5G Ethernet interface
- te - 10G/25G Ethernet interface
- xe - 40G/100G/200G/400G Ethernet interface
port - The port number of Pica8 device. Note that: On the same device, the port number of different types of port starts from 1.

The 40G/100G/200G/400G optical interfaces on Pica8 switch can be used as a single interface or split into two or four independent interfaces.

The 40GE interface can be split into four 10 Gigabit Ethernet interfaces.
The 100GE interface can be split into four 25 Gigabit Ethernet interfaces or split into four 10 Gigabit Ethernet interfaces. By default, the 100G interface will be split into 4 x 25GE interfaces.
The 200GE interface can be split into four 25GE optical interfaces，two 50GE optical interfaces, four 50GE optical interfaces or two 100GE optical interfaces.
The 400GE interface can be split into four 100 Gigabit Ethernet interfaces or two 200 Gigabit Ethernet interfaces.

If the port name of the 40G/100G/200G/400G optical interfaces is xe-1/1/n before port breakout; however, after port breakout the port names of the four interfaces are xe-1/1/n.1, xe-1/1/n.2, xe-1/1 /n.3 and xe- 1/1/n.4. For details about port breakout and merge please refer to Configuring Port Breakout and Merge.