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4 slot/port naming convention, 5 using the “no” form of a command, 6 fastpath modules – Kontron AT8404 CLI User Manual

Page 30: Using the command-line interface at8404

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Using the Command-Line Interface

AT8404

AT8404 CLI Reference Manual

Page 1 - 4

1.4

Slot/Port Naming Convention

FASTPATH software references physical entities such as cards and ports by using a slot/port naming convention.
The FASTPATH software also uses this convention to identify certain logical entities, such as Port-Channel
interfaces.

The slot number has two uses. In the case of physical ports, it identifies the card containing the ports. In the case
of logical and CPU ports it also identifies the type of interface or port.

The port identifies the specific physical port or logical interface being managed on a given slot.

1.5

Using the “No” Form of a Command

The no keyword is a specific form of an existing command and does not represent a new or distinct command.
Almost every configuration command has a no form. In general, use the no form to reverse the action of a command
or reset a value back to the default. For example, the no shutdown configuration command reverses the shutdown
of an interface. Use the command without the keyword no to re-enable a disabled feature or to enable a feature
that is disabled by default. Only the configuration commands are available in the no form.

1.6

FASTPATH Modules

FASTPATH software consists of flexible modules that can be applied in various combinations to develop advanced
Layer 2/3/4+ products. The commands and command modes available on your switch depend on the installed

Table 3: Type of Slots

Slot Type

Description

Physical slot numbers

Physical slot numbers begin with zero, and are allocated up to the maximum

number of physical slots.

Logical slot numbers

Logical slots immediately follow physical slots and identify port-channel (LAG)

or router interfaces.

CPU slot numbers

The CPU slots immediately follow the logical slots.

Table 4: Type of Ports

Port Type

Description

Physical Ports

The physical ports for each slot are numbered sequentially starting from zero.

Logical Interfaces

Port-channel or Link Aggregation Group (LAG) interfaces are logical interfaces

that are only used for bridging functions.
VLAN routing interfaces are only used for routing functions.
Loopback interfaces are logical interfaces that are always up.
Tunnel interfaces are logical point-to-point links that carry encapsulated

packets.

CPU ports

CPU ports are handled by the driver as one or more physical entities located on

physical slots.

Note: In the CLI, loopback and tunnel interfaces do not use the slot/port format. To specify a loopback
interface, you use the loopback ID. To specify a tunnel interface, you use the tunnel ID.