132
Mean path delay : 0 (ns)
Steps removed : 0
Local clock time : Sun Jan 15 20:57:29 2011
# Display brief PTP statistics on Device A.
[DeviceA] display ptp interface brief
Name State Delay mechanism Clock step Asymmetry correction
GE2/0/1 Master E2E Two 0
# Display PTP clock information on Device B.
[DeviceB] display ptp clock
PTP profile : IEEE 1588 Version 2
PTP mode : E2ETC
Slave only : No
Clock ID : 000FE2-FFFE-FF0001
Clock type : Local
Clock domain : 0
Number of PTP ports : 2
Priority1 : 128
Priority2 : 128
Clock quality :
Class : 248
Accuracy : 254
Offset (log variance) : 65535
Offset from master : N/A
Mean path delay : N/A
Steps removed : N/A
Local clock time : Sun Jan 15 20:57:29 2011
# Display brief PTP statistics on Device B.
[DeviceB] display ptp interface brief
Name State Delay mechanism Clock step Asymmetry correction
GE2/0/1 N/A E2E Two 0
GE2/0/2 N/A E2E Two 0
PTP configuration example (IEEE 1588 version 2,
multicast transmission)
Network requirements
As shown in
, a PTP domain contains Device A, Device B, and Device C.
•
Configure all devices to use PTP standard IEEE 1588 version 2.
•
Configure the source IP address for multicast PTP message transmission over UDP (IPv4).
•
Configure the clock node type as OC for Device A and Device C, and P2PTC for Device B. All clock
nodes elect a GM through BMC based on their respective default GM attributes.
•
Configure the delay measurement mechanism for Device A and Device C as
p2p
.