</p> VLAN Trunk# x# R; Q. q( W$ j9 h9 s
Switch(config-if)#switchport mode trunk
0 e1 |* M' W8 X: V Router(config)#interface gigabitEthernet 6/0
+ O8 @# z" Z/ B$ R9 t% i+ L Router(config-if)#no sh2 v" w( v3 R0 H9 d! ]9 P$ _% c
Router(config)#interface gigabitEthernet 6/0.1% E( H$ x# z$ r
Router(config-subif)#encapsulation dot1Q 1
- @: f" {1 ?; b) K( M- F5 K4 l Router(config-subif)#ip address 192.168.0.1 255.255.255.08 m; G8 n, s$ @# m
带路由模块的交换机实现 VLAN 间路由 F- J/ ]- m# A" q, }7 n8 X
两台交换机配置 trunk:3 I! ^% F1 n/ b u
Conf t
8 V( K$ h! ^2 ? Interface f0/0
( m# u5 e+ {8 n, R; z Switchport mode trunk' \1 d! ], M' x5 J' C$ I
Switchport trunk encapsulation dot1q/isl
p% X% o# f7 ?7 e Switchport trunk allowed vlan 1,4- R/ O) {; f0 B: O
Switchport trunk allowed vlan 1-4
9 ]1 ?8 ~, v$ H6 m- n Switchport trunk allowed except vlan 1-2
+ }) {% {5 o7 `% v2 [" B 生成树(STP)
u! R; A0 K8 \/ S# i; | Spanning-tree vlan 2% X: W k0 ?( g, W. ^
No spanning-tree vlan 2 打开与关闭树5 s) o _3 M/ J5 g$ g
Spanning-tree vlan 2 root primary 设置主 root根网桥$ L4 Q- n% j0 J2 r
Spanning-tree vlan 3 root secondary 设置备份 root 备份网桥
. T0 |- x5 ~& W# b9 k/ C Spanning-tree vlan 3 priority 8192 设置优先级(0,4096,8192.。。。 到 61440). T2 h5 b0 |" s0 d: E. Z4 @
配置可选功能:
& s. ]$ i/ i( w Spanning-tree backbonefast (不是连接 本交换机的链路失效时) 30 秒
; g( ?* Z7 q. h9 X Spanning-tree uplinkfast (连接本交换机链路失效 1-5 分钟9 W- v; v" E9 S! T$ x% t
Spanning-tree uplinkfast max-update-rate (0-32000)8 |0 W$ C9 U8 [* @! }7 E
Spanning-tree portfast default' U$ Z, N2 P1 A% J
Spanning-tree portfast bpdufilter default |