Sysctl-p Error: Error: "Net.bridge.bridge-nf-call-ip6ta

1.
Just finished configuring sysctl, loading times wrong:
[Email protected] yum.repos.d]# sysctl-p
Net.ipv4.ip_forward = 0
Net.ipv4.conf.default.rp_filter = 1
Net.ipv4.conf.default.accept_source_route = 0
KERNEL.SYSRQ = 0
Kernel.core_uses_pid = 1
Net.ipv4.tcp_syncookies = 1
Error: "Net.bridge.bridge-nf-call-ip6tables" is an unknown key
Error: "Net.bridge.bridge-nf-call-iptables" is an unknown key
Error: "Net.bridge.bridge-nf-call-arptables" is an unknown key
KERNEL.MSGMNB = 65536
Kernel.msgmax = 65536
FS.AIO-MAX-NR = 1048576
Fs.file-max = 6815744
Kernel.shmmax = 1073741824
Kernel.shmall = 536870912
Kernel.shmmni = 4096
Kernel.sem = 250 32000 100 128
Net.ipv4.ip_local_port_range = 9000 65500
Net.core.rmem_default = 262144
Net.core.rmem_max = 4194304
Net.core.wmem_default = 262144
Net.core.wmem_max = 1048586

2,
This error can be ignored, or it can be resolved using the following command.
[[email protected]]# modprobe bridge
[[email protected]]# lsmod |grep Bridge
Bridge 94409 0
STP 2256 2 Bridge,garp
LLC 5608 3 bridge,garp,stp
IPv6 337773 IPv6

3.
Test again, success
[Email protected] yum.repos.d]# sysctl-p
Net.ipv4.ip_forward = 0
Net.ipv4.conf.default.rp_filter = 1
Net.ipv4.conf.default.accept_source_route = 0
KERNEL.SYSRQ = 0
Kernel.core_uses_pid = 1
Net.ipv4.tcp_syncookies = 1
Net.bridge.bridge-nf-call-ip6tables = 0
Net.bridge.bridge-nf-call-iptables = 0
Net.bridge.bridge-nf-call-arptables = 0
KERNEL.MSGMNB = 65536
Kernel.msgmax = 65536
FS.AIO-MAX-NR = 1048576
Fs.file-max = 6815744
Kernel.shmmax = 1073741824
Kernel.shmall = 536870912
Kernel.shmmni = 4096
Kernel.sem = 250 32000 100 128
Net.ipv4.ip_local_port_range = 9000 65500
Net.core.rmem_default = 262144
Net.core.rmem_max = 4194304
Net.core.wmem_default = 262144
Net.core.wmem_max = 1048586

Sysctl-p Error: Error: "Net.bridge.bridge-nf-call-ip6ta