When control link is reported down, you may need to check the SRX cluster control port physical status. This can be checked via CLI instead of physically onsite.
Example:
Topology:
SRX5800 (fpc0 port0) ----- (fpc0 port0) SRX5800
Configuration:
root@SRX5800> sh config chassis show configuration chassis cluster { control-ports { fpc 0 port 0; fpc 12 port 0; }
Enter shell mode with, 'start shell'
'start shell'
Login into SPC where control port resides:
root@SRX5800% vty node0.fpc0
Case I - Control ports are disconnected.
SPC-XLP-0(SRX5800 vty)# show bcm53xx status BCM5389 unit 0 link status: Port# Name Link Speed Duplex 0 XLP0 Up 1000Mbps Full 1 XLP1 Up 1000Mbps Full 2 XLP2 Up 1000Mbps Full 3 XLP3 Up 1000Mbps Full 4 SCB Up 1000Mbps Full 5 PPC Up 1000Mbps Full 6 HA Down <---- HA is down 7 XMCHIP Down root@SRX5800% vty node1.fpc0 PC-XLP-0(SRX5800 vty)# show bcm53xx status BCM5389 unit 0 link status: Port# Name Link Speed Duplex 0 XLP0 Up 1000Mbps Full 1 XLP1 Up 1000Mbps Full 2 XLP2 Up 1000Mbps Full 3 XLP3 Up 1000Mbps Full 4 SCB Up 1000Mbps Full 5 PPC Up 1000Mbps Full 6 HA Down <---- HA is down 7 XMCHIP Down
Case II - Control ports are connected.
SPC-XLP-0(SRX5800 vty)# show bcm53xx status BCM5389 unit 0 link status: Port# Name Link Speed Duplex 0 XLP0 Up 1000Mbps Full 1 XLP1 Up 1000Mbps Full 2 XLP2 Up 1000Mbps Full 3 XLP3 Up 1000Mbps Full 4 SCB Up 1000Mbps Full 5 PPC Up 1000Mbps Full 6 HA Up 1000Mbps Full <---- HA is up 7 XMCHIP Down root@SRX5800% vty node1.fpc0 PC-XLP-0(SRX5800 vty)# show bcm53xx status BCM5389 unit 0 link status: Port# Name Link Speed Duplex 0 XLP0 Up 1000Mbps Full 1 XLP1 Up 1000Mbps Full 2 XLP2 Up 1000Mbps Full 3 XLP3 Up 1000Mbps Full 4 SCB Up 1000Mbps Full 5 PPC Up 1000Mbps Full 6 HA Up 1000Mbps Full <---- HA is up 7 XMCHIP Down
2019-06-21: minor formatting changes.