Discovery of iSCSI communication on a switch.

2011-10-31 Thread Sita Allamudi
Hi,

   I develop s/w for a switch.  I would like to discover iSCSI
sessions that pass through my switch.
   For this I feel that it is not enough to snoop on just TCP-SYN
messages.  According to me, TCP-SYN messages are sent during TCP-
Session establishment.  I feel that I should snoop on 0X03 iSCSI-LogIn
messages.  Can anybody confirm this please.

Thanks,
Sita.

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Re: Discovery of iSCSI communication on a switch.

2011-10-31 Thread Mike Christie
On 10/31/2011 05:10 AM, Sita Allamudi wrote:
 Hi,
 
I develop s/w for a switch.  I would like to discover iSCSI
 sessions that pass through my switch.
For this I feel that it is not enough to snoop on just TCP-SYN
 messages.  According to me, TCP-SYN messages are sent during TCP-
 Session establishment.  I feel that I should snoop on 0X03 iSCSI-LogIn
 messages.  Can anybody confirm this please.
 

Why does your switch need to look at iscsi stuff? Is it going to be
doing some sort of optimizations when it knows it is a iscsi connection?
Just wondering.

Other stuff would do the normal tcp syn ack stuff for connection
creation so I think you have to look for the iscsi login messages and
not just the tcp/ip connection ones.

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