MrpTest¶

Namespace: inet

class MrpTest

MRP_Test: Periodically sent by the Media Redundancy Manager (MRM) on both of its ring ports to check the ring’s operational status. Test frames circulate through all devices in the ring, and must be received by the MRM on its opposite ring port to confirm ring integrity.

Usage diagram¶

Inheritance diagram¶

Extends¶

Name	Type	Description
MrpTlvHeader	class	MRP_TLVHeader: Base class for all TLVs in MRP; contains the Type and Length fields of the TLV. Note that all TLVs (except for MRP_End) must be padded to a multiple of 32 bits.

Fields¶

Name	Type	Description
id	int
mutable	bool
complete	bool
correct	bool
properlyRepresented	bool
chunkLength	b
rawBin	string[]
rawHex	string[]
regionTags	SharingRegionTagSet::TagBaseRegionTag[]
headerType	TlvHeaderType
valueLength	uint8_t
chunkLength
headerType
valueLength
prio	uint16_t	MRP_Prio, frame priority
sa	MacAddress	MRP_SA, source MAC address
portRole	uint16_t
ringState	uint16_t
transition	uint16_t
timeStamp	uint32_t	MRP_TimeStamp, in milliseconds

Properties¶

Name	Value	Description
beforeChange	handleChange()
descriptor	readonly
existingClass
packetData

Source code¶

//
// MRP_Test: Periodically sent by the Media Redundancy Manager (MRM) on both of
// its ring ports to check the ring's operational status. Test frames circulate
// through all devices in the ring, and must be received by the MRM on its
// opposite ring port to confirm ring integrity.
//
class MrpTest extends MrpTlvHeader
{
    chunkLength = B(20);
    headerType = TEST;
    valueLength = 18;
    uint16_t prio = 0x8000;  // MRP_Prio, frame priority
    MacAddress sa;   // MRP_SA, source MAC address
    uint16_t portRole;
    uint16_t ringState;
    uint16_t transition;
    uint32_t timeStamp; // MRP_TimeStamp, in milliseconds
}

File: src/inet/linklayer/mrp/MrpPdu.msg