按照试验指导完成实验，不同的是，操作过程中系统提示flash没有空间（见红字部分），为了完成实验，只好用了erase flash （这个可能是我所用的实验台本身存在的问题，实际中如果删除flash显然不可取……如果有知道为什么要erase的，请指教。）然后vlan database里的相关命令才能正常输入，并在最后正常达到client server的同步。
先做预配置，
en
conf t
no ip do lo
line con 0
logg s
no exec-t
exit
首先要发现拓扑,打开所有接口，然后show cdp nei,然后关闭所有接口。
int range f0/0 - 15
no shu
SW1(config-if-range)#do show cdp nei
% Ambiguous command: "do show cdp nei"
SW1(config-if-range)#do show cdp nei
Capability Codes: R - Router, T -
S - Switch, H - Host, I - IGMP, r - Repeater
Device ID Local Intrfce Holdtme Capability Platform Port ID
SW2 Fas 0/12 170 R S I 3640 Fas 0/12
SW2 Fas 0/11 170 R S I 3640 Fas 0/11
Shu
现在开始在F0/11上做trunk配置，
SW1(vlan)#vtp domain norvel
Changing VTP domain name from NULL to norvel
not enough space on flash to store vlandatabase. trying squeeze...First create squeeze log by erasing the entire device //竟然说flash没有存储空间
Error squeezing flash(Missing or corrupted log)
not enough space on flash to store vlandatabase. trying squeeze...First create squeeze log by erasing the entire device
Error squeezing flash(Missing or corrupted log)
SW1(vlan)#
*Mar 1 00:33:
50.327: %SW_VLAN-6-VTP_MODE_CHANGE: VLAN manager changing device mode from SERVER to CLIENT.
SW1#erase flash: 按照提示操作，
在虚拟机上这样做事实证明可以出正确结果，但是实际中如果删除flash……
Erasing the flash filesystem will remove all files! Continue? [confirm]
Erasing device... eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee ...erasedee
Erase of flash: complete
SW1#vlan database 可以正常输入了。
SW1(vlan)#vtp server
Setting device to VTP SERVER mode.
SW1(vlan)#exit 不要忘记exit
APPLY completed.
Exiting....
SW1#conf t
Enter configuration commands, one per line. End with CNTL/Z.
SW1(config)#int f0/11
SW1(config-if)#swit
SW1(config-if)#switchport mode trunk
SW1(config-if)#swit
SW1(config-if)#switchport trunk encapsulation dot1q
SW1(config-if)#switchpo
SW1(config-if)#switchport trunk allowe
SW1(config-if)#switchport trunk allowed vlan all
SW1(config-if)#end
SW1(vlan)#vlan 2 name vlan2
VLAN 2 modified:
Name: vlan2
SW1(vlan)#exit
SW2#show vlan-s
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Fa0/0, Fa0/1, Fa0/2, Fa0/3
Fa0/4, Fa0/5, Fa0/6, Fa0/7
Fa0/8, Fa0/9, Fa0/10, Fa0/11
Fa0/12, Fa0/13, Fa0/14, Fa0/15
2 cisco2 active 此时还未位同步
3 cisco3 active
1002 fddi-default active
1003 token-ring-default active
1004 fddinet-default active
1005 trnet-default active
VLAN Type SAID MTU Parent RingNo BridgeNo Stp BrdgMode Trans1 Trans2
---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------
1 enet 100001 1500 - - - - - 1002 1003
2 enet 100002 1500 - - - - - 0 0
3 enet 100003 1500 - - - - - 0 0
1002 fddi 101002 1500 - 0 - - - 1 1003
1003 tr 101003 1500 1005 0 - - srb 1 1002
1004 fdnet 101004 1500 - - 1 ibm - 0 0
1005 trnet 101005 1500 - - 1 ibm - 0 0
SW2(config-if)#no shu 此前一直是关闭的。
SW2(config-if)#
*Mar 1 01:13:23.459: %DTP-5-TRUNKPORTON: Port Fa0/11 has become dot1q trunk
*Mar 1 01:13:23.959: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to up
SW2(config-if)#
*Mar 1 01:13:24.835: %LINK-3-UPDOWN: Interface FastEthernet0/11, changed state to up
*Mar 1 01:13:25.835: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/11, changed state to up
SW2(config-if)#do show vlan-s
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Fa0/0, Fa0/1, Fa0/2, Fa0/3
Fa0/4, Fa0/5, Fa0/6, Fa0/7
Fa0/8, Fa0/9, Fa0/10, Fa0/12
Fa0/13, Fa0/14, Fa0/15
2 vlan2 active 同步了
3 cisco3 active
1002 fddi-default active
1003 token-ring-default active
1004 fddinet-default active
1005 trnet-default active
VLAN Type SAID MTU Parent RingNo BridgeNo Stp BrdgMode Trans1 Trans2
---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------
1 enet 100001 1500 - - - - - 1002 1003
2 enet 100002 1500 - - - - - 0 0
3 enet 100003 1500 - - - - - 0 0
1002 fddi 101002 1500 - 0 - - - 1 1003
1003 tr 101003 1500 1005 0 - - srb 1 1002
1004 fdnet 101004 1500 - - 1 ibm - 0 0
1005 trnet 101005 1500 - - 1 ibm - 0 0
SW2(config-if)#
SW1(vlan)#vlan 4 name vlans4
VLAN 4 added:
Name: vlans4
SW1(vlan)#exit
APPLY completed.
Exiting....
SW1#
SW2#show vlan-switch
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Fa0/0, Fa0/1, Fa0/2, Fa0/3
Fa0/4, Fa0/5, Fa0/6, Fa0/7
Fa0/8, Fa0/9, Fa0/10, Fa0/12
Fa0/13, Fa0/14, Fa0/15
2 vlan2 active
3 cisco3 active
4 vlans4 立马同步 active
1002 fddi-default active
1003 token-ring-default active
1004 fddinet-default active
