vlan和生成樹協(xié)議講義-文庫吧
2025-02-06 01:34 本頁面
【正文】 n vlanid wg_sw_a(configvlan) ? Enters the privileged EXEC VLAN configuration mode ? Writes VLAN adds, moves, and changes to the file wg_sw_a(configif)switchport access vlan vlan ? Statically assigns a VLAN to a specific port 169。 2023 Cisco Systems, Inc. All rights reserved. 4 檢查 VLAN Catalyst 2950 Series wg_sw_2950sh vlan id 2 VLAN Name Status Ports 2 switchlab99 active Fa0/2, Fa0/12 VLAN Type SAID MTU Parent RingNo BridgeNo Stp BrdgMode Trans1 Trans2 2 e 100002 1500 0 0 . . . wg_sw_2950 wg_sw_2950show vlan [brief | id vlanid || name vlanname] 169。 2023 Cisco Systems, Inc. All rights reserved. wg_sw_2950show vlan brief VLAN Name Status Ports 1 default active Fa0/1, Fa0/2, Fa0/3, Fa0/4 2 vlan2 active 3 vlan3 active 4 vlan4 active 1002 fddidefault act/unsup 1003 tokenringdefault act/unsup VLAN Name Status Ports 1004 fddidefault act/unsup 1005 trdefault act/unsup wg_sw_2950show vlan brief 檢查 VLAN的成員關(guān)系 wg_sw_2950show interfaces interface switchport 169。 2023 Cisco Systems, Inc. All rights reserved. 配置 Trunk Link 169。 2023 Cisco Systems, Inc. All rights reserved. 1 配置 Trunk wg_sw_a(configif)switchport mode trunk ? Configures the port as a VLAN trunk Note: 2950交換機(jī)只支持 wg_sw_a(configif)switchport trunk encapsulation dot1q 169。 2023 Cisco Systems, Inc. All rights reserved. 2 配置 ISL Trunk wg_sw_4000(config) interface {fastether | gigabitether} slot/port 選擇一個(gè)將要被配置為 Trunk的端口 wg_sw_4000(configif) shutdown （可選項(xiàng)）關(guān)閉端口，阻止流量通過，直到配置完成 wg_sw_4000(configif) switchport trunk encapsulation {isl | dot1q | negotiate} （可選項(xiàng)）配置特定的封裝。 wg_sw_4000(configif) switchport mode {dynamic {auto | desirable} | trunk} 配置接口作為第二層 Trunk 169。 2023 Cisco Systems, Inc. All rights reserved. 配置 ISL Trunk實(shí)例 wg_sw_4000configure terminal wg_sw_4000(configif)interface gigabitEther 2/24 wg_sw_4000(configif)shutdown wg_sw_4000(configif)switchport trunk encapsulation isl wg_sw_4000(configif)switchport mode trunk wg_sw_4000(configif)no shutdown Note: 不是所有的 Catalyst系列交換機(jī)都支持 ISL 169。 2023 Cisco Systems, Inc. All rights reserved. 3 檢查 Trunk wg_sw_2950show interfaces interface [switchport | trunk] wg_sw_2950show interfaces fa0/11 switchport Name: Fa0/11 Switchport: Enabled Administrative Mode: trunk Operational Mode: down Administrative Trunking Encapsulation: dot1q Negotiation of Trunking: On Access Mode VLAN: 1 (default) Trunking Native Mode VLAN: 1 (default) . . . wg_sw_2950show interfaces fa0/11 trunk Port Mode Encapsulation Status Native vlan Fa0/11 desirable trunking 1 Port Vlans allowed on trunk Fa0/11 14094 Port Vlans allowed and active in management domain Fa0/11 113 169。 2023 Cisco Systems, Inc. All rights reserved. VLAN之間的路由 ? 通過三層設(shè)備（如路由器，三層交換機(jī)）可以實(shí)現(xiàn) VLAN之間的路由 169。 2023 Cisco Systems, Inc. All rights reserved. 單臂路由（ Router on a stick） ? 將一個(gè)物理接口劃分成多個(gè)邏輯子接口（ Subinterface）來實(shí)現(xiàn) VLAN之間的路由叫單臂路由（ Router on a stick ） 169。 2023 Cisco Systems, Inc. All rights reserved. 1 使用 ISL Trunk實(shí)現(xiàn) VLAN之間的路由 169。 2023 Cisco Systems, Inc. All rights reserved. 2 使用 VLAN之間的路由 169。 2023 Cisco Systems, Inc. All rights reserved. VLAN之間路由配置 實(shí)例 1 2950config t 2950(config)int f0/1 2950(configif)switchport
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