交換機簡單配置
阿新 • • 發佈:2021-01-17
目錄
說明
介紹一些網路相關知識,慢慢積累,慢慢成長。
這是我一次簡單配置交換機的經歷。
交換機簡介
交換機是二層網路裝置,作用是定址和轉發,
先尋找對應裝置的mac地址,再根據mac地址進行轉發資料幀。
那麼是如何定址的呢?
交換機內部都有記錄MAC地址的轉發表,每個設
備的MAC地址對應一個埠,轉發表就是記錄埠和MAC地址對映關係的表。轉發表是通過廣播學習生成的。
埠型別
trunk口、access口 (hybird口暫時不做介紹)
access口只支援一個VLAN,收到乙太網幀打上VLAN標籤,轉發時剝離VLAN標籤
trunk和hybir支援多個VLAN,可以接收轉發多個VLAN的資料
記錄一次實際配置(以H3C交換機為例)
配置trunk口和VLAN
//使用者檢視
<H3C>
//進入系統檢視
<H3C>system-view //進入配置檢視
[H3C]
//新增VLAN
//建立VLAN 20 和 VLAN 30
[H3C] vlan 20
[H3C-vlan10] quit
[H3C] vlan 30
[H3C-vlan10] quit
//配置VLAN 的IP地址
[H3C] interface Vlan-interface20
[H3C-Vlan-interface10] ip address 20.0.0.254 255.255.255.0
[H3C] interface Vlan-interface30
[H3C-Vlan-interface10] ip address 30.0.0.254 255.255.255.0
//埠 GigabitEthernet1/0/1 的配置
//進入埠 g1/0/1
[H3C] interface GigabitEthernet1/0/1
//配置為trunk口
[H3C- GigabitEthernet1/0/1] port link-type trunk
[H3C- GigabitEthernet1/0/1] port trunk vlan 20
[H3C- GigabitEthernet1/ 0/1] port trunk vlan 30
//設定trunk口允許通過的VLAN
[H3C- GigabitEthernet1/0/1] port trunk permit vlan 20
[H3C- GigabitEthernet1/0/1] port trunk permit vlan 30
//設定允許所有通過 port trunk permit vlan all
[H3C- GigabitEthernet1/0/1] quit
//埠 GigabitEthernet1/0/2
[H3C] interface GigabitEthernet1/0/2
//配置為access口
[H3C- GigabitEthernet1/0/2] port link-type access
[H3C- GigabitEthernet1/0/2] port access vlan 20
[H3C- GigabitEthernet1/0/2] quit
//埠 GigabitEthernet1/0/3
[H3C] interface GigabitEthernet1/0/3
//配置為access口
[H3C- GigabitEthernet1/0/3] port link-type access
[H3C- GigabitEthernet1/0/3] port access vlan 30
[H3C- GigabitEthernet1/0/3] quit
配置聚合埠
//建立聚合組
[H3C] interface bridge-aggregation 1
//埠 GigabitEthernet1/0/5
[H3C] interface GigabitEthernet1/0/5
//配置為trunk口
[H3C- GigabitEthernet1/0/5] port link-type trunk
[H3C- GigabitEthernet1/0/5] port trunk permit vlan all
//下面這步最後執行
[H3C- GigabitEthernet1/0/5] port link-aggregation group 1
[H3C- GigabitEthernet1/0/5] quit
可以試試下面這種方式
[SwitchA] interface bridge-aggregation 1
[SwitchA-Bridge-Aggregation1] port link-type trunk
[SwitchA-Bridge-Aggregation1] port trunk permit vlan 10 20
[SwitchA-Bridge-Aggregation1] quit
檢視交換機配置
//檢視當前配置資訊
display current-configuration
//檢視某個埠資訊
//檢視埠 GigabitEthernet1/0/1 的配置資訊
display current-configuration interface g1/0/1
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