虚拟局域网 VLAN
4 B, i( P/ h, Q( D查看VLAN 命令 Switch#show vlan2 c' E; t# L7 V" K# C; F( `! ]
创建 VLAN Switch#config t Switch(config)#vlan 29 \6 K* d- L' S4 T, v" N
Switch(config-vlan)#ex
1 N( v2 P. J0 I* G" x% PSwitch(config)#interface range fastEthernet 0/11 - 241 ?& h# u' x2 K7 r
Switch(config-if-range)#switchport access vlan 2
7 m. U. J) I( o/ |$ U; A' ]" v建立,修改: vlan 1000 name vlan1000, M3 p+ T) L- x
删除:no vlan 1000
$ N: | W2 u& w: uvlan interface f0/1- C1 Z$ N0 `# ^! }- ?( w9 L
switchport access vlan 1000
0 f$ i( x, f( h" n x. u6 KSwitch(config)#interface vlan 1
5 Q! d: v. N1 G9 m$ @7 Q$ cSwitch(config-if)#ip address 192.168.0.100 255.255.255.0. v* Z G( @- N+ p# x1 I Y: i
Switch(config-if)#no sh
. }6 n2 B: ?1 [& |" \, B2 nSwitch(config-if)#exit* q& |1 a/ E) b, d- m0 u
Switch(config)#ip default-gateway 192.168.0.1
& p+ K2 r. F: ~& eSwitch(config)#enable password aaa! b# u [( ^4 n& D. A- J/ e
Switch(config)#line vty 0 4
j) \2 C2 \% a `" P5 s' XSwitch(config)#line vty 0 15
) W$ q/ F- @) x9 `" LSwitch(config-line)#password aaa
# h s1 ? a& m* o. a1 u0 e! ]% E& ^% rSwitch(config-line)#login7 D8 \) O0 O0 p) u
VLAN Trunk
/ O2 q3 I" L" ~* k$ A! aSwitch(config-if)#switchport mode trunk
" ^; Y" W1 |9 y4 DRouter(config)#interface gigabitEthernet 6/0+ p7 F" U M- g7 @( y
Router(config-if)#no sh4 a7 G% V8 |9 i3 `# w/ ?$ o' I
Router(config)#interface gigabitEthernet 6/0.1
2 A: }6 B3 O- j' l- a5 yRouter(config-subif)#encapsulation dot1Q 1, u8 x/ w7 K' v7 y: W
Router(config-subif)#ip address 192.168.0.1 255.255.255.0
: `$ Y" i' y5 K' \7 u" B! L带路由模块的交换机实现 VLAN 间路由' F1 I$ C- q' S; l
两台交换机配置 trunk:( ]& c$ b, e R" U+ `
Conf t
+ @3 z0 w0 U( SInterface f0/0) L5 Q h* U& e$ `0 r
Switchport mode trunk- i4 `4 P: v2 b" { ?& Y: x
Switchport trunk encapsulation dot1q/isl. T# V% M8 J' q. `$ ^
Switchport trunk allowed vlan 1,4/ C Z* V/ p4 U) f5 `4 O) j( L
Switchport trunk allowed vlan 1-4$ x; h% V; `/ V; F$ M3 n0 a
Switchport trunk allowed except vlan 1-2 ~- m! ?" c+ v! W! ^) W
生成树(STP)
4 x" W. y& S% R4 P. T1 lSpanning-tree vlan 23 }$ A( M( M5 g0 }
No spanning-tree vlan 2 打开与关闭树1 \1 g* Q; U& P0 H
Spanning-tree vlan 2 root primary 设置主 root根网桥8 ~& o; A) q) t
Spanning-tree vlan 3 root secondary 设置备份 root 备份网桥) i# `. K1 R6 R' L7 d, F- y, v- h
Spanning-tree vlan 3 priority 8192 设置优先级(0,4096,8192.。。。 到 61440)
% P& c$ d) a3 _8 F( i配置可选功能:
+ {/ [/ C7 a6 [8 K( ]( q( TSpanning-tree backbonefast (不是连接 本交换机的链路失效时) 30 秒
w8 r: j t* u) C6 c. J$ y9 LSpanning-tree uplinkfast (连接本交换机链路失效 1-5 分钟
$ h/ a% B4 Z+ r: MSpanning-tree uplinkfast max-update-rate (0-32000)) Z) p0 f& f5 \8 X( c) P
Spanning-tree portfast default
9 M' _; c- C( G8 cSpanning-tree portfast bpdufilter default |