06-29-2021 05:45 AM - edited 06-29-2021 05:46 AM
Hi together,
I've seen any problems with IEEE1588 PTP-Sync on my Nexus N9K-C93108TC-FX (nxos.7.0.3.I7.3).
On some Ports (example: 1/45) won't PTP-Sync work. If i switch the PTP-Client on other Port (example: 1/43) the PTP-sync will work's propertly fine.
The Port-Configuration (1/43 and 1/45) is identical.
What could be the cause for this issue?
- MAC-Table?
- ARP-Table?
Thx,
Michael
06-29-2021 09:35 AM
- You may want to review these bug reports :
https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvb64728
https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvi92409
M.
06-30-2021 01:37 AM - edited 06-30-2021 02:36 AM
Hi M and thx for your Reply.
https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvb64728
This Bug don't describe my issue.
If i deactivate ptp on the port - the cisco port doesn't still send PTP (no Announce, Sync, FollowUp) to Client
https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvi92409
This Bug don't describe my issue.
My ClockDomain is 0
My Settings on the N9K:
feature ptp clock protocol ptp vdc 1 vlan 99 ptp source ###.###.###.### ptp priority1 2 ptp priority2 2 vlan configuration 99 no ip igmp snooping interface Ethernet1/43 ptp ptp vlan 99 switchport access vlan 99 mtu 9014 interface Ethernet1/45 ptp ptp vlan 99 switchport access vlan 99 mtu 9014
Status:
PTP Device Type: Boundary clock Clock Identity : ##:##:##:##:## Clock Domain: 0 Number of PTP ports: 18 Priority1 : 2 Priority2 : 2 Clock Quality: Class : 248 Accuracy : 254 Offset (log variance) : 65535 Offset From Master : 15 Mean Path Delay : 0 Steps removed : 1
PTP Port Dataset: Eth1/45
Port identity: clock identity: ##:##:##:##:##
Port identity: port number: 176
PTP version: 2
Port state: Master
VLAN info: 8
Delay request interval(log mean): 0
Announce receipt time out: 3
Peer mean path delay: 0
Announce interval(log mean): 1
Sync interval(log mean): -2
Delay Mechanism: End to End
I checked the Ouptut of Port 45 - there are only sends Announce & Sync, the FollowUp is still missed.
BR,
Michael
06-30-2021 03:48 AM
- Check logs on the N9K. too, watch for info's concerning this issue, if any.
M.
06-30-2021 04:50 AM - edited 06-30-2021 04:53 AM
Could you explain which logs exactly do you mean?
I try to create al logfile in the N9K, but there are no relevant Infos in the logfile in \root\log\ (only 3 lines?)
logging logfile ptp.log 7
01 2021 Jun 30 11:34:11 Switch %VSHD-5-VSHD_SYSLOG_CONFIG_I: Configured from vty by admin on console0 02 2021 Jun 30 11:41:25 Switch %PTP-2-PTP_STATE_CHANGE: Interface Eth1/45 change from PTP_BMC_STATE_LISTENING to PTP_BMC_STATE_PRE_MASTER 03 2021 Jun 30 11:41:29 Switch %PTP-2-PTP_STATE_CHANGE: Interface Eth1/45 change from PTP_BMC_STATE_PRE_MASTER to PTP_BMC_STATE_MASTER
BR,
Michael
06-30-2021 11:43 PM
- Possibly and if applicable or possible ,depending on urgency have a go with the latest advisory release :
https://software.cisco.com/download/home/286314802/type/282088129/release/9.3(7)
M.
06-30-2021 11:56 PM
Hi M,
sorry, but updating the Firmware ist not an option.
It is only allowed, depends on releases the IT-Department, to use nxos.7.0.3.I7.3
How could i identify the cause of the issue?
Thx and BR,
Michael
07-01-2021 12:02 AM
- That's a pity , but I acknowledge it , but note that such issues can be attributed to subtle bugs albeit being documented or not , usually it remains advisory to try a cisco-advisory release , which I mentioned. It all depends on problem-urgency too.
M.
07-01-2021 01:29 AM
what i have seen:
- FollowUp is available on Ports 1/1 - 1/44
- FollowUp is not available on Ports 1/45 - 1/48
BR
07-01-2021 03:33 AM
- You may find this document informational and or some commands might be applicable to your platform too :
M.
07-02-2021 12:50 AM - edited 07-02-2021 01:15 AM
sorry, but there are no solutions to fix the issue
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