Announce Timeout Expired - Becoming Master

[wangqiang624731186]

i use 2 ubuntu22.04 PCs with I210 network card
PC1 and PC2 is similar :
I don't know why it's not working

LOG：

lspci | grep net
00:1f.6 Ethernet controller: Intel Corporation Ethernet Connection (2) I219-LM
02:00.0 Ethernet controller: Intel Corporation I210 Gigabit Network Connection (rev 03)

ethtool -i enp2s0
driver: igb_avb
version: 5.3.2_AVB
firmware-version: 3.16, 0x800004ff, 1.304.0
expansion-rom-version:
bus-info: 0000:02:00.0
supports-statistics: yes
supports-test: yes
supports-eeprom-access: yes
supports-register-dump: yes
supports-priv-flags: no

sudo ./obj/daemon_cl enp2s0 -L
INFO : GPTP [11:52:32:363] gPTP starting
ERROR : GPTP [11:52:32:363] Using clock device: /dev/ptp0
STATUS : GPTP [11:52:32:363] Switching to Slave
STATUS : GPTP [11:52:32:364] Link Speed: 1000000 kb/sec
STATUS : GPTP [11:52:35:364] *** Announce Timeout Expired - Becoming Master
STATUS : GPTP [11:52:35:364] New Grandmaster "6C:B3:11:FF:FE:52:C4:FD" (previous "00:00:00:00:00:00:00:00")
EXCEPTION: GPTP [11:52:38:414] PDelay Response Receipt Timeout
EXCEPTION: GPTP [11:52:39:416] PDelay Response Receipt Timeout
EXCEPTION: GPTP [11:52:40:416] PDelay Response Receipt Timeout
EXCEPTION: GPTP [11:52:41:417] PDelay Response Receipt Timeout
EXCEPTION: GPTP [11:52:42:434] PDelay Response Receipt Timeout