Advanced Attributes

The routine maintenance parameters can be set through setting the advanced attributes of microwave interfaces. In this user interface, you can set the advanced attributes of a microwave interface.

Navigation Path

In the NE Explorer, select an NE and choose Configuration > Interface Management > Microwave Interface from the Function Tree. Click the Advanced Attributes tab.
In the NE Explorer, select the board and choose Configuration > Interface Management > Microwave Interface from the Function Tree. Click the Advanced Attributes tab.

Guideline

The IF board and the ODU that connects to the IF board or IF port must be added.

Parameters

**Table 1** Descriptions of the parameters for microwave interface Advanced Attributes
Field	Value	Description
Port	slot number-board name-port number(port name)	Displays the name of a microwave port.
Microwave Link ID	1 to 4094	When you set Microwave Link ID, note the following points: As the identifier of a microwave link, this parameter is used to avoid misconnection of microwave links between sites. If this parameter is different from Received Link ID, the NE reports the MW_LIM alarm and inserts the AIS into the downstream. Set this parameter according to the planning. Each microwave link of an NE should have a unique Link ID, and the Link IDs at both the ends of a microwave link should be the same. Before performing the loopback operation for the IF board, disable the AM function at the two ends of a link.
Received Microwave Link ID	1 to 4094	Displays the ID of the microwave link that is actually received. NOTE: When the queried value is 0, it indicates that no link information is received. When the queried value is 62235, it indicates that loopback and other logical errors exist.
IF Port Loopback	Non-Loopback, Inloop, Outloop Default: Non-Loopback	Inloop indicates that loopback occurs in the IF signals to be transmitted to the remote end. Outloop indicates that loopback occurs in the IF signals to be received. Generally, this parameter takes the default value. Before performing the loopback operation for the IF board, disable the AM function at the two ends of a link.
Composite Port Loopback	Non-Loopback, Inloop, Outloop Default: Non-Loopback	Inloop indicates that loopback occurs in the composite signals to be transmitted to the remote end. Outloop indicates that loopback occurs in the composite signals to be received. Generally, this parameter takes the default value. Before performing the loopback operation for the IF board, disable the AM function at the two ends of a link.
Error Frame Discard Enabled	Enabled, Disabled Default: Disabled	Displays whether error frame discard is enabled. You can also enable or disable error frame discard. The microwave IF board logic verifies the error frame in the Ethernet packet that is dropped from a microwave air interface. Enabled: An error frame is detected and the Ethernet packet is discarded. Disabled: An error frame is detected, but the Ethernet packet is not discarded. The BER of E1 services is monitored. Hence, it is recommended that Composite Port Loopback be set to Disabled. In the case of other services, the default value is recommended.
MAC Address	For example: 00-07-03-03-ff-01	Displays the MAC address of the port on an IF board.
Transmission Rate (Kbit/s)	-	Displays the transmitted rate of the port.
Receiving Rate (Kbit/s)	-	Displays the received rate of the port.
MAC Loopback	Non-Loopback, Inloop	Sets the loopback state of the MAC layer.
PHY Loopback	Non-Loopback, Inloop, Outloop	Specifies the physical loopback. Non-Loopback: When you set MAC Loopback to Non-Loopback, the equipment operates in the normal state. Inloop: When you set MAC Loopback to Inloop, the service from the cross-connect card is transmitted back to the same cross-connect card in the equipment. The inloop affects services that are configured on relevant ports and is used for fault locating. Outloop: When you set MAC Loopback to Outloop, a signal received on the port at the receive end is transmitted back to the port where the signal is transmitted. NOTE: After you set a loopback, normal services are interrupted.
Switch Errored Bit	Enabled, Disabled Default: Disabled	Specifies whether the LAG switchover is triggered when a bit error occurs. If this parameter is set to Enabled, the LAG switchover is triggered when a bit error occurs. If this parameter is set to Disabled, the LAG switchover is not triggered when a bit error occurs.
L2 Frame Header Compression	Enabled, Disabled Default: Disabled	Specifies whether the MAC header compression is enabled. MAC header compression saves the bandwidth and expands the service transmission capacity. If this parameter is set to Enabled, MAC headers will be compressed. If this parameter is set to Disabled, MAC headers will not be compressed.
L3 Frame Header Compression	Enabled, Disabled Default: Disabled	Specifies whether the IP header compression is enabled. IP header compression saves bandwidth and expands the service transmission capacity. If this parameter is set to Enabled, IP headers will be compressed. If this parameter is set to Disabled, IP headers will not be compressed.
Loopback Check	Enabled, Disabled Default: Disabled	Sets the loop detection. When this function is enabled, the equipment automatically checks whether a loop is generated on the link. If a loop is generated, the relevant alarm is reported.
Loopback Port Block	Enabled, Disabled Default: Disabled	Sets the automatic block of the port. When Loopback Check is set to Enabled and Loopback Port Block is set to Enabled, the equipment automatically checks whether a loop is generated on the link. If a loop is generated, the port is automatically block to release the loop.
Broadcast Packet Suppression	Enabled, Disabled Default: Disabled	Sets whether to enable the packet suppression. Enabling the packet suppression efficiently prevents the broadcast and unknow packet storm and network congestion, and ensures the normal running of services. The E-LAN service supports this parameter.
Broadcast Packet Suppression Threshold (%)	0 to 100	Configures the threshold of the broadcast packet suppression. The E-LAN service supports this parameter. When the broadcast packet suppression is enabled, the broadcast packets are suppressed if the following requirement is met: Occupancy rate of the broadcast packet to the bandwidth of the current port > the total bandwidth of the port x the suppression threshold. A low occupancy rate indicates that the number of broadcast packets that pass through the port is small. If the occupancy rate is 100%, it indicates that the broadcast packets that pass through the port are not suppressed.
Jitter Adjustment	Enabled, Disabled Default: Disabled	Specifies whether to enable jitter adjustment. If jitter adjustment is enabled, WRR scheduling may be imprecise. If jitter adjustment is disabled, delay and jitter may be large enough to interrupt CES services. NOTE: This parameter applies only to IS series boards. For details about WRR scheduling policies, see WRR Scheduling Policy.
Hold-off Time(s)	0 to 86400	Indicates the hold-off time of a microwave interface. On a tree or chain network, if transient interruption or jitter occurs and a microwave link is switched, Layer 3 and signaling recalculation may be triggered. It takes much time to recover services. If the hold-off time is set to 0, faults are reported to the Layer 3 protocol or services immediately after being detected. If the hold-off time is not 0, faults are not reported to the Layer 3 protocol or services immediately but are reported if they still exist after the hold-off time is due.
Enable Switching Bit Triggered by Bit Error	Disabled, Enabled Default: Disabled	When Enable Switching Triggered by Bit Error is set to Enabled, tunnel APS protection switching is triggered when the BER crosses the threshold. The specific threshold is the one corresponding to Switching Mode Triggered by Bit Error.
Switching Mode Triggered by Bit Error	SD, SF	Specifies the type of switching that is triggered by bit errors. SD: When the detected BER is larger than the value of SD Threshold for Packet Loss at Port, an alarm will be reported and protection switching will be triggered. SF: When the detected BER is larger than the value of SD Threshold for Packet Loss at Port, an alarm will be reported; when the BER is larger than the value of EXC Threshold for Packet Loss at Port, an alarm will be reported and protection switching will be triggered.