• Fan Du's avatar
    ipv4: Namespecify TCP PMTU mechanism · b0f9ca53
    Fan Du authored
    Packetization Layer Path MTU Discovery works separately beside
    Path MTU Discovery at IP level, different net namespace has
    various requirements on which one to chose, e.g., a virutalized
    container instance would require TCP PMTU to probe an usable
    effective mtu for underlying tunnel, while the host would
    employ classical ICMP based PMTU to function.
    
    Hence making TCP PMTU mechanism per net namespace to decouple
    two functionality. Furthermore the probe base MSS should also
    be configured separately for each namespace.
    Signed-off-by: default avatarFan Du <fan.du@intel.com>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    b0f9ca53
sysctl_net_ipv4.c 22.5 KB