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tcp: SACK Lost Retransmission Detection (LRD) 

Recover from excessive losses without reverting to a
retransmission timeout (RTO). Disabled by default, enable
with sysctl net.inet.tcp.do_lrd=1

Reviewed By: #transport, rrs, tuexen, #manpages
Sponsored by: Netapp, Inc.
Differential Revision: https://reviews.freebsd.org/D28931
This commit is contained in:
Richard Scheffenegger 2021-05-10 18:47:47 +02:00 committed by Sebastian Huber
parent a00ca7bd54
commit d4971b6464
1 changed files with 1 additions and 0 deletions
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newlib/libc/sys/rtems/include/netinet/tcp.h
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@ -199,6 +199,7 @@ struct tcphdr {
#define TCP_PROC_ACCOUNTING 76 /* Do accounting on tcp cpu usage and counts */ #define TCP_PROC_ACCOUNTING 76 /* Do accounting on tcp cpu usage and counts */
#define TCP_USE_CMP_ACKS 77 /* The transport can handle the Compressed mbuf acks */ #define TCP_USE_CMP_ACKS 77 /* The transport can handle the Compressed mbuf acks */
#define TCP_PERF_INFO 78 /* retrieve accounting counters */ #define TCP_PERF_INFO 78 /* retrieve accounting counters */
#define TCP_LRD 79 /* toggle Lost Retransmission Detection for A/B testing */
#define TCP_KEEPINIT 128 /* N, time to establish connection */ #define TCP_KEEPINIT 128 /* N, time to establish connection */
#define TCP_KEEPIDLE 256 /* L,N,X start keeplives after this period */ #define TCP_KEEPIDLE 256 /* L,N,X start keeplives after this period */
#define TCP_KEEPINTVL 512 /* L,N interval between keepalives */ #define TCP_KEEPINTVL 512 /* L,N interval between keepalives */