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Interfaces

  • Application Selection on 400ZR and 400 G OpenZR optics modules (PTX10003)—Use application selection to configure different operational modes and optimize performance for your network. You can define how the optics behaves regarding reach, capacity, and line system compatibility. Configure application selection with the set interfaces <interface> optics-options application hostid <hostid> mediaid <mediaid> [domainid <domainid>] command under the interface optics-options hierarchy. See Features of 400ZR and 400G OpenZR+.

  • Support for 800 G Open ZR+ pluggable modules (PTX10008)—Enhance data center and infrastructure connectivity with high-capacity 800G-ZR+ pluggable modules. These modules support multiple optical modes and high-performance modulation formats, enabling transmission to reach up to 450 km at 800 Gbps. PTX 10008 LC1301 does not support the Nx200G speeds (where N is one to four). The optics modules also support features such as application selection, wavelength configuration, optical loopback, and configuration of target output power. See 800ZR and 800G OpenZR+ Optical Transceivers.

  • WAN interface support on PTX10K-LC1301 (PTX10008)—You can configure the WAN interface MTU up to 16000 bytes for transit traffic. The device supports host traffic up to 9500 bytes, reducing fragmentation and enhancing throughput. The default MTU is 1514 bytes. The device supports a minimum packet size of 597 bytes at line rate.

    Configure the interface using the set interfaces <IFD name> mtu <MTU> command. Verify the value using the show interfaces et-0/0/11 command

  • Extension of ae interface ID range (PTX10002-36QDD and PTX10008)—You can configure aggregate Ethernet interface names in the range 0–999999, expanding the previous upper bound of ae4091. You gain naming flexibility for large deployments without changing ae bundle behavior or protocols. The supported ae bundle count per platform remains unchanged.

    Configure the interface using the set interfaces ae40000 command to adopt broader numbering schemes consistent with your operational conventions.