Need information on the net.sctp.max_init_retransmits and sctp_connectx
Issue
- If we pass 6 IP addresses to
sctp_connectx()andnet.sctp.max_init_retransmitsis set to 4, then SCTP tries the first 5 IP addresses and skips the 6th one. - Can Red Hat confirm whether:
- Based on number of IP addresses count passed to
sctp_connectx(), we will have to increase and set the value ofmax_init_retransmitsthroughsetsockopt(..SCTP_INITMSG..)before callingsctp_connectx()For this e.g.,max_init_retransmitsshould need to have minimum value of 5. - If we pass 6 IP addresses to
sctp_connectx(),net.sctp.rto_initial = 4000,net.sctp.max_init_retransmits=5then when first IP is unreachable it takes 4s to try the 2nd IP address and so on.
- Based on number of IP addresses count passed to
Environment
- Red Hat Enterprise Linux (RHEL)6.5.
- SCTP kernel parameters.
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