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Cisco 交换机设置点滴(一)

2019-11-05 01:46:37
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  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治理域,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,在相同治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只需要在治理域内的一台设备上建立和配置.信息会自动被相同治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),在相同治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治理域, 并设为VTP client,它将接收来自VTP server 的VTP配置及更新.
  
  注重: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
  
  
  
  
  
  注重: 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
  
  假如在网络里有VTP server和VTP clent,请在VTP server上设置VLAN 20
  
  Cat5001> (enable) set vlan 20
  
  VLAN 20 modified
  
  这将激活在所有治理域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


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