Cisco交换机设置点滴
交换机虚拟网(Virtual LANs)的设置: Catalyst 5000上实现VLAN划分及外部VLAN路由设置 分配VTP域(a VTP Domain) 将Cat5000加入域 指定中继端口(a Trunk) Dynamic ISL 分配VLAN到端口 设置VLAN 20 配置Router -------------------------------------------------------------------
 注:存在三个VLAN,在VLAN之间通过Router做路由. ----------------------------------------------------------------- 分配VTP域
什么是VTP? VTP是VLAN Trunk Protocol的简写,它提供每个设备 (router 或 LAN-switch)在中继端口(trunk ports)发送广播. 这些广播被发送到一个组播地址,并被所有相邻设备接收. 这些广播列出了发送设备的管理域,它的配置修订号,已知的VLAN, 及已知VLAN的确定参数.通过听这些广播,在相同管理域的所有设备都可以学习到在发送设备上配置的新的VLAN.使用这种方法,新的 VLAN只需要在管理域内的一台设备上建立和配置.信息会自动被相同管理域内的其它设备学到. 分配VTP域
首先分配VTP域名(a VTP domain name),在相同管理域内的交换机可以通过VTP协议互相学习VTP信息. Cat5001> (enable) sho vtp domain Domain Name Domain Index VTP Version Local Mode -------------------------------- ------------ ----------- ----------- 1 1 server Advt Interval Vlan-count Max-vlan-storage Config Revision SNMP Traps
------------- ---------- ---------------- --------------- ----------- 300 5 256 0 disabled Last Updater
--------------- 0.0.0.0 Cat5001> (enable) Cat5001> (enable) set vtp domain cisco VTP domain cisco modified Cat5001> (enable) sho vtp domain Domain Name Domain Index VTP Version Local Mode -------------------------------- ------------ ----------- ----------- cisco 1 1 server Advt Interval Vlan-count Max-vlan-storage Config Revision SNMP Traps
------------- ---------- ---------------- --------------- ----------- 300 5 256 0 disabled Last Updater
--------------- 0.0.0.0 Cat5001> (enable) --------------------------------------------------------------------------------
将Catalyst 5002加入域
需要将Catalyst 5002加入名为cisco的VTP管理域, 并设为VTP client,它将接收来自VTP server 的VTP配置及更新. 注意:Catalyst 5000系列交换机默认为VTP server.
cat5002> (enable) cat5002> set vtp domain cisco mode client 指定中继端口(Trunk ports) VLAN Trunk协议(VTP)只在中继口(ISL , LANE 和802.10)上传输,应在二个Catalyst5000 交换机间定义哪个口作为中继端口(Trunk port).
Inter-Switch Link (ISL) 中继用于Fast Ethernet和Gigabit Ethernet端口
IEEE 802.10中继用于FDDI/CDDI端口 LAN Emulation (LANE) 中继用于ATM 端口 Cat5001> (enable) set trunk 1/1 on
Port 1/1 mode set to on. Cat5001> (enable) Wed Jun 19 1996, 15:00:02 Port 1/1 has become trunk. -------------------------------------------------------------------------------- Dynamic ISL
有了DISL(Dynamic ISL), 你不需要修改远端的Catalyst 5000;以下信息将显示在远端的Catalyst 5000. Wed Jun 19 1996, 15:51:59 Port 1/2 has become trunk. Cat5001> (enable) sho trunk
Port Mode Status ------- --------- ------------ 1/1 on trunking 1/2 auto not-trunking 2/1-2 off not-trunking 5/1 auto not-trunking 5/2 auto not-trunking 5/3 auto not-trunking 5/4 auto not-trunking 5/5 auto not-trunking 5/6 auto not-trunking 5/7 auto not-trunking 5/8 auto not-trunking 5/9 auto not-trunking 5/10 auto not-trunking 5/11 auto not-trunking 5/12 auto not-trunking Port Vlans allowed
------- --------------------------------------------------------------------- 1/1 1-1000 1/2 1-1000 2/1-2 1-1000 5/1 1-1000 5/2 1-1000 5/3 1-1000 5/4 1-1000 5/5 1-1000 5/6 1-1000 5/7 1-1000 5/8 1-1000 5/9 1-1000 5/10 1-1000 5/11 1-1000 5/12 1-1000 Port Vlans active
------- --------------------------------------------------------------------- 1/1 1 1/2 1 2/1-2 1 5/1 1 5/2 1 5/3 1 5/4 1 5/5 1 5/6 1 5/7 1 5/8 1 5/9 1 5/10 1 5/11 1 5/12 1 注意: DISL在Cisco IOS软件中不支持. -------------------------------------------------------------------------------- 分配VLAN到端口
Cat5001> (enable) set vlan 2 3/2-20 VLAN 2 modified. VLAN 1 modified. VLAN Mod/Ports ---- ----------------------- 2 1/1 3/2-20 Cat5001> (enable) set vlan 20 5/1-6 VLAN 20 modified. VLAN 1 modified. VLAN Mod/Ports ---- ----------------------- 20 1/1 5/1-6 Configure additional information for VLAN 20. On the other Catalyst 5000 :
Cat5002> (enable) set vlan 2 4/1-2,5/6-12 VLAN 2 modified. VLAN 1 modified. VLAN Mod/Ports ---- ----------------------- 2 1/2 4/1-3,4/5-23 5/6-12 Configure additional information for VLAN 20. Cat5002> (enable) set vlan 20 5/1-5 VLAN 20 modified. VLAN 1 modified. VLAN Mod/Ports ---- ----------------------- 20 1/2 5/1-5 Configure VLAN 20 on a VTP server. -------------------------------------------------------------------------------- 显示端口配置
Cat5001> (enable) show port Port Name Status Vlan Level Duplex Speed Type ---- -------------------- ---------- ---------- ------ ------ ----- ----------- 1/1 connected 1 normal half 100 100BaseTX 1/2 connected trunk normal half 100 100BaseTX 2/1 connecting 1 normal half 100 FDDI 2/2 connected 1 normal half 100 FDDI 4/1 inactive 2 normal half 10 10BaseT 4/2 inactive 2 normal half 10 10BaseT 4/3 inactive 2 normal half 10 10BaseT 4/4 notconnect 1 normal half 10 10BaseT 4/5 inactive 2 normal half 10 10BaseT 4/6 此时, VLAN 2 和VLAN 20 还未激活.所以在VLAN 2和VLAN 20的端口是inactive状态. -------------------------------------------------------------------------------- 设置VLAN 20
如果在网络里有VTP server和VTP clent,请在VTP server上设置VLAN 20 Cat5001> (enable) set vlan 20 VLAN 20 modified 这将激活在所有管理域cisco内的VLAN 20 Cat5001> (enable) sho vlan 20 VLAN Name Status Mod/Ports ---- -------------------------------- --------- ---------------------------- 20 VLAN0020 active 1/1 5/1-6 VLAN Type SAID MTU Parent RingNo BridgeNo Stp Trans1 Trans2
---- ----- ---------- ----- ------ ------ -------- ---- ------ ------ 20 enet 100020 1500 - - - - 0 0 -------------------------------------------------------------------------------- 配置Router
conf t interface FastEthernet0/0.1 <-- you need to create a sub-interface by vlan. encapsulation isl 20 <-- 20 is the vlan number. ip address 1.1.1.1 255.255.255.0
interface FastEthernet0/0.2 encapsulation isl 2 ip address 2.2.2.1 255.255.255.0 interface FastEthernet0/0.3 encapsulation isl 1 ip address 172.16.80.1 255.255.255.0 Router eigrp 666
network 1.0.0.0 network 2.0.0.0 network 172.16.80.0 end writ mem 本文出自 51CTO.COM技术博客 |
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