Hello Everyone
I changed last month my center-switch with brand new 3750
Nice boxes ..; no problem with the upgrade.
Pas de problemes pendant la migration.
Got to add an 2950 to add some more VLAN12 posts.
Configured as the other 2950 i already have here that worked fine ....
Trunk to the 3750s on GE 1 & 2.
Heres the 2950 config (nothing very complicated)
-------------------------------------
version 12.1
no service pad
service timestamps debug uptime
service timestamps log uptime
service password-encryption
!
hostname Switch06
!
enable secret xxxx
enable password xxxx
!
ip subnet-zero
!
!
spanning-tree mode pvst
no spanning-tree optimize bpdu transmission
spanning-tree extend system-id
!
!
!
!
interface FastEthernet0/1
switchport access vlan 12
switchport mode access
spanning-tree portfast
SNIP (every FE port are configured the same from 1 to 24)
interface FastEthernet0/24
switchport access vlan 12
switchport mode access
spanning-tree portfast
!
interface GigabitEthernet0/1
switchport mode trunk
!
interface GigabitEthernet0/2
switchport mode trunk
!
interface Vlan1
no ip address
no ip route-cache
shutdown
!
interface Vlan15
ip address 10.21.5.6 255.255.255.0
no ip route-cache
!
ip default-gateway 10.21.5.254
no ip http server
!
line con 0
line vty 0 4
password xxxx
login
line vty 5 15
password xxxx
login
!
!
end
All my admins posts here are on VLAN 15
I monitor all the switch from theses...
No problem so far but that one just don't answer .... No ping no telnet...
Hmmm tried the shutdown/No shutdown trick ....
Switch06#conf term
Enter configuration commands, one per line. End with CNTL/Z.
Switch06(config)#interface vlan 15
Switch06(config-if)#shutdown
Switch06(config-if)#
03:01:50: %LINK-5-CHANGED: Interface Vlan15, changed state to administratively d
own
Switch06(config-if)#no shutdown
Switch06(config-if)#
03:02:02: %LINK-3-UPDOWN: Interface Vlan15, changed state to down
Switch06(config-if)#exit
Switch06(config)#exit
Switch06#
03:02:09: %SYS-5-CONFIG_I: Configured from console by console
changed state to down ????
I don't know why the VLAn is down ....
Tried to erase vlan config and rebuild from scratch ... Seems to be up but won't ping or manage... Sometimes at least it pings itself ....
Any clue ?
Config on the 3750 for that switch :
!
interface GigabitEthernet1/0/9
description Switch6 A
switchport trunk encapsulation dot1q
switchport mode trunk
!
!
interface GigabitEthernet2/0/9
description Switch6 B
switchport trunk encapsulation dot1q
switchport mode trunk
!
.....
