The Media redundancy ASE defines one object type.
6.3.3.2.2 Template
A Media redundancy object is described by the following template:
ASE: Media redundancy ASE CLASS: Media redundancy CLASS ID: not used
PARENT CLASS: IEEE 802.3 IEEE 802.1D IEEE 802.1 AB ATTRIBUTES:
1 (m) Key Attribute: MRP Domain UUID
2 (m) Attribute: MRP Domain Name
3 (m) Attribute: MRP Version
4 (m) Attribute: MRP Role (MANAGER, CLIENT)
5 (m) Attribute: MRP Params
5.1 (c) Constraint: MRP Role = MANAGER 5.1.1 (m) Attribute: Manager Priority
5.1.2 (m) Attribute: Topology Change Interval 5.1.3 (m) Attribute: Topology Change Repeat Count 5.1.4 (m) Attribute: Short Test Interval
5.1.5 (m) Attribute: Default Test Interval 5.1.6 (m) Attribute: Test Monitoring Count 5.2 (c) Constraint: MRP Role = CLIENT 5.2.1 (m) Attribute: Link Down Interval 5.2.2 (m) Attribute: Link Up Interval 5.2.3 (m) Attribute: Link Change Count
6 (m) Attribute: MRP Data Check
6.1 (m) Attribute: MRP Domain UUID
6.2 (m) Attribute: MRP Check
6.2.1 (m) Attribute: Multiple Manager Check 6.2.2 (m) Attribute: Domain UUID Check 7 (m) Attribute: Ring State Data
8 (m) Attribute: Ring Port 1 ID
9 (m) Attribute: Ring Port 2 ID
10 (o) Attribute: VLAN ID
SERVICES:
none
6.3.3.2.3 Attributes MRP Domain UUID
This key attribute defines the redundancy domain representing the ring the Media redundancy object belongs to. It is set to default domain ID or provided as unique ID by engineering.
Attribute type: UUID MRP Domain Name
This attribute defines the redundancy domain representing the ring the Media redundancy object belongs to. It is set to default domain name or provided as unique ID by engineering.
Attribute type: see Chassis ID MRP Version
This attribute specifies the version of the Media redundancy object in the redundancy domain referenced by the value of the attribute Domain ID.
Attribute type: Unsigned16 Allowed Values: 1
MRP Role
This attribute specifies the role of the Media redundancy object in the redundancy domain referenced by the value of the attribute Domain ID.
Attribute type: Unsigned16
Allowed Values: MANAGER, CLIENT MRP Params
This attribute specifies the parameters of the Media redundancy object in the redundancy domain referenced by the value of the attribute Domain ID.
It consists of the following attributes:
MRP Prio
This attribute is present when the value of the MRP role attribute is “MANAGER”. This attribute contains the manager’s priority. A lower value indicates a higher priority, 0x0000 (highest priority) to 0xF000 (lowest priority) in increments of 0x1000.
Attribute type: Unsigned16 MRP Topology Change Interval
This attribute is present when the value of the MRP role attribute is “MANAGER”. This attribute contains the interval for sending topology change frames.
Attribute type: Unsigned16
MRP Topology Change Repeat Count
This attribute is present when the value of the MRP role attribute is “MANAGER”. This attribute contains the interval count which controls repeated transmission of topology change frames.
Attribute type: Unsigned16
MRP Short Test Interval
This attribute is present when the value of the MRP role attribute is “MANAGER”. This attribute contains the short interval for sending test frames on ring ports after link changes in the ring.
Attribute type: Unsigned16 MRP Default Test Interval
This attribute is present when the value of the MRP role attribute is “MANAGER”. This attribute contains the default interval for sending test frames on ring ports.
Attribute type: Unsigned16 MRP Test Monitoring Count
This attribute is present when the value of the MRP role attribute is “MANAGER”. This attribute contains the interval count for monitoring the reception of test frames.
Attribute type: Unsigned16 MRP Link Down Interval
This attribute is present when the value of the MRP role attribute is “CLIENT”. This attribute contains the interval for sending link down Link Change frames on ring ports.
Attribute type: Unsigned16 MRP Link Up Interval
This attribute is present when the value of the MRP role attribute is “CLIENT”. This attribute contains the interval for sending link up Link Change frames on ring ports.
Attribute type: Unsigned16 MRP Link Change Count
This attribute is present when the value of the MRP role attribute is “CLIENT”. This attribute contains the Link Change frame count which controls repeated transmission of Link up or link down frames.
Attribute type: Unsigned16 MRP Data Check
This parameter contains the checking rules. It consists of the following attributes:
MRP Domain UUID
This parameter contains the MRP Domain UUID to check against, if the Domain UUID Check attribute is set to TRUE.
Attribute type: UUID MRP Check
This attribute consists of the following elements:
Multiple Manager Check
This attribute contains the value TRUE to enable the continued evaluation of multiple MRP managers with the reception of MRP-PDUs with the MRP_Type=MRP_Test.
Otherwise it shall be set to FALSE.
Attribute type: Boolean Domain UUID Check
This attribute contains the value TRUE to enable the continued evaluation of MRP Domain UUID with each Remote System Data Change indication as specified within the Neighborhood Check state machine. Otherwise it shall be set to FALSE.
Attribute type: Boolean
Ring State Data
This attribute contains the actual ring state of the Media redundancy object in the redundancy domain.
Attribute type: Unsigned16 Allowed Values:
- OPEN (Ring is open due to link or device failure in ring), - CLOSED (Ring is closed (normal operation, no error)),
− UNDEFINED (Shall be set if the attribute Real Role State contains the value CLIENT (i.e. Media redundancy object was reconfigured to client role))
Ring Port 1 ID
This attribute specifies one port of a bridge which is assigned as ring port 1 in the redundancy domain referenced by the value of the attribute Domain ID. One port shall only belong to a single redundancy domain.
Attribute type: Unsigned16 Ring Port 2 ID
This attribute specifies another port of a bridge different from Ring Port 1 ID which is assigned as ring port 2 in the redundancy domain referenced by the value of the attribute Domain ID.
Attribute type: Unsigned16 VLAN ID
This optional attribute may be used by the Media redundancy object and specifies its VLAN identifier in the redundancy domain.
Attribute type: Unsigned16