Specifications

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Cisco MWR 2941 Mobile Wireless Edge Router Release 3.5 Software Configuration Guide, Cisco IOS Release 15.1(3)MR
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Chapter 16 Configuring Clocking and Timing
Configuring Clocking and Timing
The following examples demonstrate how to use these commands to configure each of the PTP modes.
Use the appropriate section based on the PTP mode that you want to configure on the Cisco MWR 2941.
• PTP multicast master mode—Sets the Cisco MWR 2941 to act as the master PTP clock. Multicast
specifies that the router sends PTP messages to all the slaves listening on the PTP multicast group.
Note PTP master mode is intended for trial use only and is not for use in a production network.
Router(config)# interface Vlan10
Router(config-if)# ip address 192.168.52.38 255.255.255.0
Router(config-if)# ip igmp join-group 224.0.1.129
Router(config-if)# ptp announce interval 0
Router(config-if)# ptp sync interval -6
Router(config-if)# ptp delay-req interval -4
Router(config-if)# ptp master multicast
Router(config-if)# ptp enable
• PTP multicast slave mode—Sets the Cisco MWR 2941 to receive clocking from a PTP master
device in multicast mode.
Router(config)# interface Vlan10
Router(config-if)# ip address 192.168.52.38 255.255.255.0
Router(config-if)# ip igmp join-group 224.0.1.129
Table 16-1 PTP Interface Commands
Command Purpose
ptp announce Sets interval and timeout values for PTP announcement packets.
ptp boundary Sets the interface in boundary clock mode; you can specify the interface to
use multicast or unicast negotiation..
ptp clock-destination Specifies the IP address of a clock destination. This command applies only
when the router is in PTP master unicast mode.
ptp clock-source Specifies the IP address of the clock source. This command applies only
when the router is in PTP slave mode.
ptp delay-req interval Specifies the delay request interval, the time recommended to member
devices to send delay request messages when an interface is in PTP master
mode.
ptp delay-req unicast Configures the Cisco MWR 2941 to send unicast PTP delay request
messages while in multicast mode. This command helps reduce
unnecessary PTP delay request traffic.
ptp enable Enables PTP mode on an interface. You can enable PTP slave mode on two
VLAN interfaces simultaneously.
ptp master Sets an interface in master clock mode for PTP clocking.
Note PTP master mode is intended only for trial use and is not for use in
a production network.
ptp slave Sets an interface to slave clock mode for PTP clocking. You can enable
slave mode on two interfaces simultaneously to connect to two different
master clocks.
ptp sync Specifies the interval that the router uses to send PTP synchronization
messages.