Guidelines And Limitations For Ptp; Default Settings For Ptp - Cisco Nexus 7000 Series Configuration Manual

Configuring PTP
• To configure VDCs, you must install the appropriate license. See the Cisco Nexus 7000 Series NX-OS

Guidelines and Limitations for PTP

• PTP operates only in boundary clock mode. and in gPTP mode to support AVB. The end-to-end
• Only one PTP process can control all of the port clocks through the clock manager.
• PTP supports transport over User Datagram Protocol (UDP).
• Transport over Ethernet is supported on AVB application.
• PTP supports only multicast communication. Negotiated unicast communication is supported on AVB
• PTP is limited to a single domain per network.
• All management messages are forwarded on ports on which PTP is enabled. Handling management
• PTP-capable ports do not identify PTP packets and do not time-stamp or redirect those packets unless
• PTP can be enabled only on F1, F2, F2e, F3, and M2 Series module ports.
• PTP is not supported on FEX interfaces.
• For F1 Series modules, PTP is not supported on the port if priority flow control is enabled. Similarly,
• For F1 Series modules, Pong is not supported on the VDC if priority flow control is enabled on any of
• Beginning with Cisco NX-OS Release 6.1, PTP is supported in Layer 3 mode for F2, F2e, and M2 Series
• Beginning with Cisco NX-OS Release 6.2.6, PTP is supported in F3 Series modules.
• PTP Encapsulation is supported starting from in Cisco Nexus 7.3.0. The default value is Layer 3.
• PTP over FabricPath is not supported.
• PTP and Pong are not supported on M3 Series modules.

Default Settings for PTP

The following table lists the default settings for PTP parameters.
Virtual Device Context Configuration Guide for configuration information and the Cisco NX-OS Licensing
Guide for licensing information.
transparent clock and peer-to-peer transparent clock modes are not supported.
application.
messages is not supported.
you enable PTP on those ports.
priority flow control is not supported if PTP is enabled on the same port.
the ports in the same VDC. Similarly, priority flow control is not supported if Pong is enabled in the
same VDC.
modules.
Cisco Nexus 7000 Series NX-OS System Management Configuration Guide
Guidelines and Limitations for PTP
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