Nokia 7210 SAS-M User Manual

7210 SAS-M, T, R6, R12, Mxp, Sx, S Basic System
Configuration Guide
System Management
Edition: 01 3HE 16132 AAAB TQZZA 297
On the 7210 SAS-R12, the G.8275.1 profile is supported only for IMMv2 cards.
When using the profile, the following restrictions apply.
- The delay and sync requests are set to 16 pps by default and are not
configurable.
- The announce rate is set to 8 pps by default and is not configurable.
- A change of profile to G.8275.1 or from G.8275 to another profile requires
a reboot of the node.
- Only a single multicast slave is supported per port.
• PTP with Ethernet encapsulation is only supported with the G.8275.1 profile.
• PTP over IP encapsulation is not supported with the G.8275.1 profile. It is
supported only with the IEEE 1588v2 and G.8265.1 profiles.
• PTP slave capability is available on all the ports on the 7210 SAS-M,
7210 SAS-Mxp, 7210 SAS-R6, 7210 SAS-R12, 7210 SAS-Sx 1/10GE, and
7210 SAS-T.
• When changing the clock-type to or from a boundary clock on the
77210 SAS-Mxp, 7210 SAS-R6, 7210 SAS-R12, 7210 SAS-Sx 1/10GE, and
7210 SAS-T platforms, the node must be rebooted for the change to take effect.
Nokia recommends taking appropriate measures to minimize service disruption
during the reboot process.
• On the 7210 SAS-M, use of PTP and SyncE as a reference simultaneously is
not allowed. Either SyncE or PTP can be configured as a reference, but not both
together.
• The 7210 SAS-Mxp, 7210 SAS-R6, 7210 SAS-R12, 7210 SAS-Sx 1/10GE, and
7210 SAS-T support the use of PTP and SyncE as a reference simultaneously;
that is, on these platforms, the ref-order can be set to config>system>sync-if-
timing>ref-order ref1 ref2 ptp.
• The 7210 SAS-M, 7210 SAS-Mxp, 7210 SAS-R6, 7210 SAS-R12,
7210 SAS-Sx 1/10GE, and 7210 SAS-T support the PTP hybrid mode of
operation. Frequency recovery is provided by the central clock through either
SyncE or BITS, depending on which reference is configured. PTP is used for
time recovery only. In this mode, the node can recover very stable frequency
using a reduced PTP packet rate.
• The 7210 SAS-M uses CPU processing cycles for frequency and time recovery.
Use of PTP hybrid mode reduces the amount of CPU processing cycles needed,
helping customers scale better.
• To enable PTP hybrid mode on the 7210 SAS-Mxp, 7210 SAS-R6,
7210 SAS-R12, 7210 SAS-Sx 1/10GE, and 7210 SAS-T, run the
config>system>ptp>clock>freq-source ssu CLI command. To enable pure
PTP mode, the user must execute the command
config>system>ptp>clock>freq-source ptp.

Nokia 7210 SAS-M Specifications

General

Brand	Nokia
Model	7210 SAS-M
Category	Cell Phone
Language	English