求助！！

anykcry

思科三层交换机的配置





clock timezone gmt 8           /？
no errdisable detect cause link-flap     /？
no errdisable detect cause loopback     / ？
ip subnet-zero                          /？
ip routing
ip dhcp excluded-address 10.52.96.1 10.52.97.10 /是交换机自身分配IP段？
!
ip dhcp pool ligangnanwang                 /?
   network 10.52.96.0 255.255.240.0      /这个IP是什么意思
   default-router 10.52.96.1
   dns-server 172.16.1.10 202.96.128.68 210.21.4.130
!
vtp domain test_vtp     /这个也不明白
vtp mode transparent   /？





logging 10.253.100.4
access-list 110 permit ip any 10.253.100.0 0.0.0.255
access-list 110 permit ip 10.253.100.0 0.0.0.255 any
access-list 110 permit icmp any host 10.52.100.100
access-list 110 permit icmp host 10.52.100.100 any
access-list 110 deny   icmp any any
access-list 110 deny   tcp any any eq 135
access-list 110 deny   tcp any any eq 445
access-list 110 permit ip any any

//这一段更是不明白什么意思，哪个大哥教教小弟，谢谢啦