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Configuring SONET Options for 10-Gigabit Ethernet Interfaces

 

The 10-Gigabit Ethernet IQ2 and IQ2-E PICs are supported on the M120, M320, and T Series routers. The 10-Gigabit Ethernet LAN/WAN PICs are supported on the T4000 routers. These PICs provides external interfaces running at 10 Gbps. The interface operates in either LAN PHY or WAN PHY mode. When the external interface is running in WAN PHY mode, it uses the WIS sublayer to transport 10-Gigabit Ethernet frames in an OC192c SONET payload, and can interoperate with SONET section or line level repeaters. This creates an advantage when the interface is used for long-distance, point-to-point 10-Gigabit Ethernet links.

When the external interface is running in WAN PHY mode, you can configure specific physical SONET options. When WAN PHY mode is configured on an interface, the following SONET options are supported:

  • Loopback (local and remote)

  • Path trace

  • Trigger options

To configure SONET options for 10-Gigabit Ethernet Interfaces:

  1. In configuration mode, go to the [edit interfaces interface-name sonet-options] hierarchy level, where the interface-name is so-fpc/pic/port.
  2. Configure a loopback connection.
  3. Configure a path trace identifier, which is a text string that identifies the circuit.
  4. Configure SONET/SDH defect triggers as either ignore or hold time.

    The defect triggers can be ignored. By default all SONET/SDH defect triggers are honored if you do not include the trigger defect ignore statement.

    You can apply up and down hold times to SONET/SDH defect trigger. When a defect is detected the interface is marked down immediately and when the defect becomes absent the interface is marked up immediately if you do not include the trigger defect hold-time statement.

  5. Configure the mpls option to process incoming IP packets that have MPLS labels for passive monitoring on ATM and SONET/SDH interfaces and 10-Gigabit Ethernet interfaces in WAN PHY mode.
  6. Configure the pop-all-labels option to remove up to two MPLS labels from incoming IP packets in passive monitoring.
  7. Configure the required-depth option as either 1 or 2 in the pop-all-labels statement. to specify the number of MPLS labels an incoming packet must have for the pop-all-labels statement to take effect. If you include the required-depth 1 statement, the pop-all-labels statement takes effect for incoming packets with one label only. If you include the required-depth 2 statement, the pop-all-labels statement takes effect for incoming packets with two labels only.

For information about using the mpls statement, see Enabling Packet Flow Monitoring on SONET/SDH Interfaces.