Hey,
I have a MX204 (Junos 23.4R2) that I am trying to use as PTP-BC in a telco use case. I have a external Meinberg PTP-GM that is works reliably, connects over 1G and syncs the MX204 as PTP slave. PTP is stable. I have another server connected over 10G SFP+ that should be synced towards the MX204. I see the PTP broadcast messages being sent just fine and I also see the PTP delay request from the client. However, for some reason the MX204 never responds with a PTP delay reply and I can't figure out why. Tried with the PTP profile g.8275.1, tried with manually configured announce and sync intervals, etc.
To verify the link between server and switch is working fine I let a ping run over the interface. I've also tried to play with multicast configs as I thought that perhaps the multicast DelayReq is not received/forwarded to the PTP process but to no further avail.
Config:
interfaces {
xe-0/0/0:0 {
unit 0 {
family inet {
address 192.168.14.1/24;
}
}
}
xe-0/1/0 {
description preskit2-ptp;
unit 0 {
family inet {
address 192.168.13.1/24;
}
}
}
xe-0/1/2 {
description ptpgm;
link-mode full-duplex;
gigether-options {
auto-negotiation;
speed 1g;
}
unit 0 {
family inet {
address 192.168.77.1/24;
}
}
}
}
protocols {
ptp {
clock-mode boundary;
domain 24;
phy-timestamping;
slave {
interface xe-0/1/2.0 {
multicast-mode {
transport {
ieee-802.3 link-local;
}
}
}
}
master {
announce-interval -3;
sync-interval -4;
interface xe-0/1/0.0 {
multicast-mode {
transport {
ieee-802.3 link-local;
}
}
}
}
}
PTP logs:
root@fh-switch> show ptp statistics
Local Clock Remote Clock Role Stream Received Transmitted
xe-0/1/2.0 01:80:c2:00:00:0e Slave 0 67963 27204
xe-0/1/0.0 01:80:c2:00:00:0e Master 4 0 25300
Any idea what might be going on here? Do I need to enable/set something else to get this basic PTP setup running?
Thanks
Andre
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ANDRE PUSCHMANN
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