Local clock time:Sun Jul 3 14:13:24 2011
switch(config)#
Configuring PTP on an Interface
After you globally enable PTP, it is not enabled on all supported interfaces by default. You must enable PTP
interfaces individually.
Before you begin
Make sure that you have globally enabled PTP on the switch and configured the source IP address for PTP
communication.
Procedure
PurposeCommand or Action
Enters global configuration mode.switch# configure terminal
Step 1
Specifies the interface on which you are
enabling PTP and enters interface
configuration mode.
switch(config) # interface ethernet slot/port
Step 2
Enables or disables PTP on an interface.switch(config-if) # [no] feature ptp
Step 3
Configures the interval between PTP announce
messages on an interface or the number of PTP
(Optional) switch(config-if) # [no] ptp
announce {interval log seconds | timeout
count}
Step 4
intervals before a timeout occurs on an
interface.
The range for the PTP announcement interval
is from 0 to 4 seconds, and the range for the
interval timeout is from 2 to 10.
Configures the minimum interval allowed
between PTP delay-request messages when
the port is in the master state.
(Optional) switch(config-if) # [no] ptp delay
request minimum interval log seconds
Step 5
The range is from log(-6) to log(1) seconds.
Where, log(-2) = 2 frames per second.
Configures the interval between PTP
synchronization messages on an interface.
(Optional) switch(config-if) # [no] ptp sync
interval log seconds
Step 6
The range for the PTP synchronization interval
is from -3 log second to 1 log second
Specifies the VLAN for the interface where
PTP is being enabled. You can only enable
PTP on one VLAN on an interface.
(Optional) switch(config-if) # [no] ptp vlan
vlan-id
Step 7
The range is from 1 to 4094.
Displays the PTP status.(Optional) switch(config-if) # show ptp brief
Step 8
Cisco Nexus 3548 Switch NX-OS System Management Configuration Guide, Release 7.x
13
Configuring PTP
Configuring PTP on an Interface
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