This tag specifies the intended direction of the packet as one of inbound, outbound, or undefined. The direction should be set to:

• outbound when
• a new packet is generated (e.g. in an application or in a protocol like TCP)
• a packet is sent to the lower layer
• a packet is received from the upper layer
• inbound when
• a packet is forwarded (e.g. in a protocol like IP)
• a packet is received from the lower layer
• a packet is sent to the upper layer

Extends

Name	Type	Description
TagBase	(unknown -- not in documented files)

Fields

Name	Type	Description
direction	Direction

Shared Tagging operations (observed)

tagAction	module
addTagIfAbsent	MacRelayUnit, PacketDirectionReverser, RelayInterfaceSelector, Ieee8021dRelay, PacketEmitter, DestreamingReceiver, PacketReceiver, StreamThroughReceiver, ActivePacketSource, PassivePacketSource
findTag	PacketDirectionReverser

Source code

//
// This tag specifies the intended direction of the packet as one of inbound,
// outbound, or undefined. The direction should be set to:
//  - outbound when
//    - a new packet is generated (e.g. in an application or in a protocol like TCP)
//    - a packet is sent to the lower layer
//    - a packet is received from the upper layer
//  - inbound when
//    - a packet is forwarded (e.g. in a protocol like IP)
//    - a packet is received from the lower layer
//    - a packet is sent to the upper layer
//
class DirectionTag extends TagBase
{
    Direction direction = DIRECTION_UNDEFINED;
}

File: src/inet/common/DirectionTag.msg

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