Explain the following configuration for Huawei S2700 series network switch line by line:
!Software Version V200R011C10SPC600
#
sysname CEN-52tp07
#
vlan batch 2 to 300
#
authentication-profile name default_authen_profile
authentication-profile name dot1x_authen_profile
authentication-profile name mac_authen_profile
authentication-profile name portal_authen_profile
authentication-profile name dot1xmac_authen_profile
authentication-profile name multi_authen_profile
#
igmp-snooping enable
#
clock timezone Asia/Kathmandu add 05:45:00
#
radius-server template default
#
free-rule-template name default_free_rule
#
portal-access-profile name portal_access_profile
#
vlan 9
 igmp-snooping enable
 igmp-snooping version 3
 igmp-snooping query-interval 60
 igmp-snooping querier enable
vlan 18
 igmp-snooping enable
 igmp-snooping query-interval 60
 igmp-snooping querier enable
#
aaa
 authentication-scheme default
 authentication-scheme radius
  authentication-mode radius
 authorization-scheme default
 accounting-scheme default
 local-aaa-user password policy administrator
  password history record number 0
  password expire 0
 domain default
  authentication-scheme radius
  radius-server default
 domain default_admin
  authentication-scheme default
 local-user adm privilege level 0
 local-user adm service-type terminal ssh http
 local-user admin password irreversible-cipher $1a$F_[Z@XVA+-$PFhY*.W8@Pbwu=-'2n{.GnpwF3m'25qe&<"mYRWF$
 local-user admin privilege level 15
 local-user admin ftp-directory flash:/
 local-user admin service-type terminal ssh http
#
ntp-service server disable
ntp-service ipv6 server disable
ntp-service unicast-server 192.168.13.100
#
interface Vlanif1
#
interface Vlanif20
 ip address 10.0.1.20 255.255.255.0
#
interface Ethernet0/0/1
 port link-type access
 port default vlan 17
#
interface Ethernet0/0/2
 port link-type access
 port default vlan 17
#
interface Ethernet0/0/3
 port link-type access
 port default vlan 17
#
interface Ethernet0/0/4
 port link-type access
 port default vlan 17
#
interface Ethernet0/0/5
 port link-type access
 port default vlan 17
#
interface Ethernet0/0/6
 port link-type access
 port default vlan 17
#
interface Ethernet0/0/7
 port link-type access
 port default vlan 17
#
interface Ethernet0/0/8
 port link-type access
 port default vlan 17
#
interface Ethernet0/0/9
 port link-type access
 port default vlan 17
#
interface Ethernet0/0/10
 port link-type access
 port default vlan 17
#
interface Ethernet0/0/11
 port link-type access
 port default vlan 17
#
interface Ethernet0/0/12
 port link-type access
 port default vlan 17
#
interface Ethernet0/0/13
 port link-type access
 port default vlan 17
#
interface Ethernet0/0/14
 port link-type access
 port default vlan 17
#
interface Ethernet0/0/15
 port link-type access
 port default vlan 17
#
interface Ethernet0/0/16
 port link-type access
 port default vlan 17
#
interface Ethernet0/0/17
 port link-type access
 port default vlan 17
#
interface Ethernet0/0/18
 port link-type access
 port default vlan 17
#
interface Ethernet0/0/19
 port link-type access
 port default vlan 17
#
interface Ethernet0/0/20
 port link-type access
 port default vlan 17
#
interface Ethernet0/0/21
 port link-type access
 port default vlan 17
#
interface Ethernet0/0/22
 port link-type access
 port default vlan 17
#
interface Ethernet0/0/23
 port link-type access
 port default vlan 17
#
interface Ethernet0/0/24
 port link-type access
 port default vlan 17
#
interface Ethernet0/0/25
 port link-type access
 port default vlan 17
#
interface Ethernet0/0/26
 port link-type access
 port default vlan 17
#
interface Ethernet0/0/27
 port link-type access
 port default vlan 17
#
interface Ethernet0/0/28
 port link-type access
 port default vlan 17
#
interface Ethernet0/0/29
 port link-type access
 port default vlan 17
#
interface Ethernet0/0/30
 port link-type access
#
interface Ethernet0/0/31
 port link-type access
#
interface Ethernet0/0/32
 port link-type access
 port default vlan 18
#
interface GigabitEthernet0/0/1
 port link-type access
 port default vlan 18
#
interface GigabitEthernet0/0/2
 port link-type access
 port default vlan 18
#
interface GigabitEthernet0/0/3
 port link-type access
 port default vlan 18
#
interface GigabitEthernet0/0/4
 port link-type access
 port default vlan 18
#
interface GigabitEthernet0/0/5
 port link-type access
 port default vlan 18
#
interface GigabitEthernet0/0/6
 port link-type access
 port default vlan 18
#
interface GigabitEthernet0/0/7
 port link-type access
 port default vlan 18
#
interface GigabitEthernet0/0/8
 port link-type access
 port default vlan 18
#
interface GigabitEthernet0/0/9
 port link-type access
 port default vlan 18
#
interface GigabitEthernet0/0/10
 port link-type access
 port default vlan 18
#
interface GigabitEthernet0/0/11
 port link-type access
 port default vlan 18
#
interface GigabitEthernet0/0/12
 port link-type access
 port default vlan 18
#
interface GigabitEthernet0/0/13
 port link-type access
 port default vlan 9
#
interface GigabitEthernet0/0/14
 port link-type access
 port default vlan 9
#
interface GigabitEthernet0/0/15
 port link-type access
 port default vlan 17
#
interface GigabitEthernet0/0/16
 port link-type access
 port default vlan 17
#
interface GigabitEthernet0/0/17
#
interface GigabitEthernet0/0/18
#
interface GigabitEthernet0/0/19
#
interface GigabitEthernet0/0/20
 port link-type trunk
 port trunk allow-pass vlan 2 to 4094
#
interface NULL0
#
ip route-static 192.168.8.0 255.255.255.0 10.0.1.2
ip route-static 192.168.13.0 255.255.255.0 10.0.1.1
#
snmp-agent
snmp-agent local-engineid 800007DB03084F0A876A00
snmp-agent community write cipher %^%#j7S1L$sa>#Yz$VW)ERS-@*Tr$>[.DZ.pl*Hf*`w*slj($_x,5"lG{:%`>GM0CB+~BQor"4m;VZ+hpsOU%^%# mib-view View_ALL
snmp-agent community read cipher %^%#Uzl=:B5->:A401D$@Z5Tb$eoR&y.O3A`,BW~"2oN%8(a4ALeO%}-rjC1Jk=6aC-xM3<a,8P:yU2Uar."%^%# mib-view View_ALL
snmp-agent sys-info version all
snmp-agent target-host trap address udp-domain 192.168.8.100 params securityname cipher %^%#q|c^-D[w$>Z70"Rt8/r"TC2j".{JV,*o2z*(l{QG%^%# v2c private-netmanager ext-vb
snmp-agent mib-view included View_ALL iso
snmp-agent trap source Vlanif20
snmp-agent extend error-code enable
snmp-agent trap enable
#
stelnet ipv4 server enable
stelnet ipv6 server enable
#
user-interface con 0
 authentication-mode aaa
user-interface vty 0 4
 authentication-mode aaa
user-interface vty 16 20
#
port-group 1
 group-member Ethernet0/0/1
 group-member Ethernet0/0/2
 group-member Ethernet0/0/3
 group-member Ethernet0/0/4
 group-member Ethernet0/0/5
 group-member Ethernet0/0/6
 group-member Ethernet0/0/7
 group-member Ethernet0/0/8
 group-member Ethernet0/0/9
 group-member Ethernet0/0/10
 group-member Ethernet0/0/11
 group-member Ethernet0/0/12
 group-member Ethernet0/0/13
 group-member Ethernet0/0/14
 group-member Ethernet0/0/15
 group-member Ethernet0/0/16
 group-member Ethernet0/0/17
 group-member Ethernet0/0/18
 group-member Ethernet0/0/19
 group-member Ethernet0/0/20
 group-member Ethernet0/0/21
 group-member Ethernet0/0/22
 group-member Ethernet0/0/23
 group-member Ethernet0/0/24
 group-member Ethernet0/0/25
 group-member Ethernet0/0/26
#
port-group 2
 group-member GigabitEthernet0/0/1
 group-member GigabitEthernet0/0/2
 group-member GigabitEthernet0/0/3
 group-member GigabitEthernet0/0/4
 group-member GigabitEthernet0/0/5
 group-member GigabitEthernet0/0/6
 group-member GigabitEthernet0/0/7
 group-member GigabitEthernet0/0/8
 group-member GigabitEthernet0/0/9
 group-member GigabitEthernet0/0/10
#
dot1x-access-profile name dot1x_access_profile
#
mac-access-profile name mac_access_profile
#
return