L交换机本配置.ppt

目标 当你完成本章，你将可以： 检测设备的默认配置，实现交换机的基本配置 配置交换机的管理地址和默认网关 根据不同的网络实现二层交换机的添加移动 复习 使用SHOW命令可以检查交换机是否在出厂默认设置状态 配置交换机IP地址的命令和默认网关的命令 半双工使用冲突检测，全双工不需要进行冲突检测 MAC地址包括动态，永久和静态地址 Layer 2 of 2 Note: The 1900en maximum MAC address table size is 1024. Once the table is full, it will flood all new addresses until existing entries age out. The command to change the MAC address table aging time is as follows: wg_sw_a(config)#mac-address-table aging-time ? 10-1000000 Aging time value The default is 300 sec. The MAC address table is also referred to as the CAM table (Content Address Memory) on some switches. Layer 3 of 3 Emphasize: Permanent addresses do not age out. Layer 2 of 2 Note: When the switch-sticky learns a MAC address on a secured port, the switch will make that MAC address a permanent address. ? 2002, Cisco Systems, Inc. All rights reserved. ICND v2.0—3-* ? 2002, Cisco Systems, Inc. All rights reserved. * ? 2002, Cisco Systems, Inc. All rights reserved. ? 2002, Cisco Systems, Inc. All rights reserved. * 配置一台交换机 IP address: CDP: enabled 100baseT port: autonegotiate duplex mode Spanning tree: enabled Console password: none 2950系列交换机的默认配置 wg_sw_2950#show run Building configuration... Current configuration: ! ! interface FastEthernet0/1 ! interface FastEthernet0/2 wg_sw_2950#show spantree Interface Fa0/1 (port 7) in Spanning tree 1 is FORWARDING Port path cost 19, Port priority 128 Designated root has priority 32768, address 0008.a445.c980 Designated bridge has priority 32768, address 0008.a445.c980 Designated port is 7, path cost 0 Timers: message age 0, forward delay 0, hold 0 BPDU: sent 8316, received 4 wg_sw_2950#show vlan VLAN Name Status Ports ---- -------------------------------- --------- ------------------------------- 1 default active Fa0/1, Fa0/2, Fa0/3, Fa0/4, Fa0/5, Fa0/6, Fa0/7, Fa0/8,