Port

Overview

Ethernet Port Profiles control attributes (for example, speed, rates, and burst sizes) for Ethernet services on the Tellabs ONTs. Ethernet Port Profiles are global to the Panorama PON server.

Ethernet Port Profiles are stored on both the Panorama PON server and OLT, when the OLT has one or more lines associated with the profile.

Default Profile

Panorama PON initially creates one default Ethernet Port Profile. This profile is assigned to Ethernet ports when they are initially provisioned. The default profile can be edited but not deleted. New profiles can be defined and used as needed; the default profile does not have to be used.

However, lines that are associated with a non-default profile are automatically activated. Because a profile can be associated with multiple lines at once, this is the most efficient way to activate lines.

Ethernet Port Profile Attributes

The following Ethernet Port profile attributes are available for user editing.

Features

• Speed - Defines whether the port should auto-detect the port speed or set it to a fixed rate.
  • Auto-Detect-1000 - The port will handshake with the far end to determine the rate and will allow 10, 100, and 1000BT.
  • Auto-Detect-100 - The port will handshake with the far end to determine the rate but will only advertise 10 and 100BT. The highest rate will be 100BT.
  • 1000 - The port will be set to 1000BT fixed rate.
  • 100 - The port will be set to 100BT fixed rate.
  • 10, 2.5G, 5G, 10G - The port will be set to selected fixed rate. 
• Auto-MDX - Auto MDIX should typically always be set to Enabled. When enabled will automatically determine whether the connection would require a crossover and automatically chooses the MDI or MDIX configuration to properly match the other end of the link. This eliminates the need for crossover cables. Default isEnabled.
• Max MAC - Specify the upper limit of authorized MAC addresses. The range is 1 to 256. Default is16.
  • This field determines the maximum number of MACs that will be learned on the port. If more MACs are seen than is defined in this field, the MACs will be ignored.  
• PHY Hold Time - The PHY Hold Time maintains the Ethernet link for the time specified in the event of a momentary loss of signal GPON (LOS). The momentary LOS could be due to an actual LOS or, if the ONT is configured in a PON Protection Group (PPG), during the transition from Primary to Secondary PPG.
  • Range is 0 to 65535 seconds. Setting this time to zero (0), causes the PHY to remain active. Default is 5 seconds. 
• Loopback Detection and Alarm - A Loopback alarm occurs as a result of a reflected packet. This occurs when a physical loopback is detected on the port when the keepalive packet is looped back to the port that sent the keepalive. The switch sends keepalives out all the interfaces by default. A device can loop the packets back to the source interface, which usually occurs because there is a logical loop in the network that the spanning tree has not blocked. The source interface receives the keepalive packet that it sent out, and the switch disables the interface. Default is Disabled. 

Downstream

• CIR - Committed Information Rate (CIR), in multiples of 64 Kbps. If set to 0, there is no rate limit. The default is 0 Mbps; valid value range is 0 through 10000 Mbps. 
• Max Burst Size - Maximum burst size in Bytes. If set to 0, there is no rate limit.
  The default is 0 and the valid value range is 2048 through 60000 Bytes.
• Pause Frame - Enable or Disable pause frames (default isEnabled). Pause frames allow the port to backpressure the attached device and ensure that no traffic is lost over the link during congested periods. 

Upstream

• CIR - Committed Information Rate (CIR), in multiples of 64 Kbps. If set to 0, there is no rate limit. The default is 0 Mbps; valid value range is 0 through 10000 Mbps.
• Max Burst Size - Maximum burst size in Bytes. If set to 0, there is no rate limit. The default is 0; valid value range is 2048 through 60000 Bytes. 
• Pause Frame - Enable or Disable pause frames (default is Enabled). Pause frames allow the port to backpressure the attached device and ensure that no traffic is lost over the link during congested periods.

Port Alarm Enable 

• Link Flap - Enables detection of the Access Violation Link-Flap alarm and is used to auto alarm malfunctioning ports.  Default is Disabled.
  • A Link-Flap alarm will occur:
    • when an excessive Link-Up / Link-Down events occur
    • when a total 4 Link-Up/Link-Downs occur within a minute
    • when a total of 12 Link-Up/Link-Downs occur within 5 minutes
    • when the equipment attached to this port has malfunctioned
    • when the cabling or connectors attached to this port are intermittently making connection
• Max MAC Violation - Enables the reporting of the Access Violation Alarm for exceeding the configured number of MAC addresses on a port. Default is Enable.
• Link Status - Activates the Link Status alarm when the Ethernet Link goes down, Enable on high priority ports. On normal ports, it is not necessary to enable this alarm. Default is Disabled.
• Link Trap - Provides the option of IF MIB Traps or Tellabs Generic Traps. Default MIB Traps.

Dynamic ARP Inspection

• DAI Trust State - Provides status of Dynamic ARP Inspection in order to prevent unauthorized snooping on ports. Default is Untrusted.  
  • Trusted - No DAI checks are performed on this port and all ARPs are forwarded. Use of a Static IP is allowed on Trusted Ports.
  • Untrusted - DAI checks are performed on all ARPs and non-compliant ARPs are discarded. Static Ips are not allowed on Untrusted Ports. 
• DHCP Trust State - Provides status of Dynamic Host Configuration Protocol (DHCP) Inspection, in order to prevent unauthorized snooping on ports. Default is Untrusted
  • Trusted - DHCP server messages are allowed on this port.
  • Untrusted - DHCP server messages are not allowed on this port. 

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