Hi,
From SRX HA Deployment Guide:
Control Link communication loss only (Fabric communication is still successful)
The RG0 secondary node will transition to an Ineligible state then transistion to a Disabled state
Fabric Link communication loss only (Control communication is still successful)
SRX-HE
Secondary node will transition to Ineligible then to Disabled state (10.4R3 and lower)
No action taken(10.4R4 and higher)
SRX-Branch
Secondary node will transition to an Ineligible state then to a Disabled state
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1:now if contril link between node0 and node1 is down,what will happen(fabric link is good)?
does node0 change inactive redundancy groups 1 to priamy even there is an interface down in node0?
2:if control link is good ,but fabric link down
what will happen?
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1. Only RG0 on secondary node will transition to disabled. I believe RG0 will not be able to communicate to PFE on node1.
"The RE communication with the remote node, such as communication with PFE, kernel state synchronization with RE, configuration synchronization, and Juniper Stateful Redundancy Protocol (JSRP) heartbeats between the nodes is handled via the control link."
In this case reth in RG1 will go down.
2. I believe failure of fabric link only would affect Z-Flow traffic or session sync for active-active cluster [10.4R4 higher]
Cheers,
Ashvin