[j-nsp] SRX cluster across L2 vlan issue

[james list]

Hi experts,


a customer of mine has implemented an SRX cluster HE(1400) over a L2 (vlan)
infrastructure and is having sometime problems on the dual FAB links, which
trigger basically a split brain.


The cluster is geographically stretched and in one site the customer has
Cisco Nexus 5k and on the other has Extreme switches.


I’m not having a lot of info by the customer, I can only see that they have
configured PVSTP on Cisco side and no STP protocol on Extreme side.


Has anyone experienced problems in these kind of scenario ?


I’m aware of the Juniper prerequisites stated here:

http://kb.juniper.net/library/CUSTOMERSERVICE/GLOBAL_JTAC/NT21/LAHAAppNotev4.pdf


I’m looking for real experience and comments, what to check, any help, etc.


Cheers,

James