GNS3中用c3660镜像模拟三层交换机，svi接口无法双Up

深蓝之郁

GNS3中用的三层交换机的镜像是c3660-telco-mz.124-15.T5.bin,应该是一个路由器镜像，我用来模拟三层交换机，现在在一个交换机上启用3个vlan，没问题，show vlan-s都可以看到VLAN信息，然后我用int vlan xx去开启SVI接口并配置IP，最后发现SVI接口的protocol是down的。
我确认该svi所属VLAN在该交换机上已经有二层口access了，所有的trunk口都是allowed vlan all的，就是起来不了，痛苦！！！关键是3台直连的ESW交换机show cdp neighbors竟然都查不到邻居信息。
有朋友帮忙一下吗？
==
把其中ESW1 的配置信息发一下

Current configuration : 2618 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
no service dhcp
!
hostname ESW1
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
memory-size iomem 5
no ip icmp rate-limit unreachable
!
!
ip cef
!
!
no ip domain lookup
multilink bundle-name authenticated
!
vtp file nvram:vlan.dat
archive
log config
  hidekeys
!
!
ip tcp synwait-time 5
!
!
!
interface FastEthernet0/0
description *** Unused for Layer2 EtherSwitch ***
no ip address
duplex auto
speed auto
!
interface FastEthernet0/1
description *** Unused for Layer2 EtherSwitch ***
no ip address
shutdown
duplex auto
speed auto
!
interface FastEthernet1/0
switchport mode trunk
duplex full
speed 100
!
interface FastEthernet1/1
switchport mode trunk
duplex full
speed 100
!
interface FastEthernet1/2
duplex full
speed 100
!
interface FastEthernet1/3
duplex full
speed 100
!
interface FastEthernet1/4
duplex full
speed 100
!
interface FastEthernet1/5
duplex full
speed 100
!
interface FastEthernet1/6
duplex full
speed 100
!
interface FastEthernet1/7
duplex full
speed 100
!
interface FastEthernet1/8
duplex full
speed 100
!
interface FastEthernet1/9
duplex full
speed 100
!
interface FastEthernet1/10
duplex full
speed 100
!
interface FastEthernet1/11
duplex full
speed 100
!
interface FastEthernet1/12
duplex full
speed 100
!
interface FastEthernet1/13
duplex full
speed 100
!
interface FastEthernet1/14
duplex full
speed 100
!
interface FastEthernet1/15
duplex full
speed 100
!
interface Vlan1
no ip address
shutdown
!
interface Vlan10
ip address 192.168.10.254 255.255.255.0
!
interface Vlan20
ip address 192.168.20.254 255.255.255.0
!
interface Vlan255
ip address 192.168.255.254 255.255.255.0
!
no ip http server
ip forward-protocol nd
!
!
!
no cdp log mismatch duplex
!
!
control-plane
!
banner exec ^C

***************************************************************
This is a normal Router with a SW module inside (NM-16ESW)
It has been preconfigured with hard coded speed and duplex

To create vlans use the command "vlan database" from exec mode
After creating all desired vlans use "exit" to apply the config

To view existing vlans use the command "show vlan-switch brief"

Warning: You are using an old IOS image for this router.
Please update the IOS to enable the "macro" command!
***************************************************************

^C
!
line con 0
exec-timeout 0 0
privilege level 15
logging synchronous
line aux 0
exec-timeout 0 0
privilege level 15
logging synchronous
line vty 0 4
login
!
end

motive6

vlan和接口先shutdown，然后no shutdown就正常了，你的环境我模拟一下，确实会Protocol 是down的，只要vlan和接口重新开启一下就好了，还有一个需要确认的就是下联的那个交换机端口也得是trunk模式

深蓝之郁

有没有可能是镜像问题或者模拟器的bug？有大神提供一下三层交换机的镜像吗？谢谢了！

Rockyw

路过了解一下

深蓝之郁

motive6 发表于 2017-2-20 08:40
vlan和接口先shutdown，然后no shutdown就正常了，你的环境我模拟一下，确实会Protocol 是down的，只要vlan ...

毕竟是CCIE的大神，果然，我整个重启一下就行了。

motive6

深蓝之郁 发表于 2017-2-24 10:35
毕竟是CCIE的大神，果然，我整个重启一下就行了。

如果是GNS3模拟的话，可以用vios来模拟交换，网上可以搜索到
http://www.netemu.cn/bbs/thread-17162-1-1.html