05-09-2010 05:57 AM - edited 03-06-2019 10:59 AM
I am trying to create subinterfaces on a 3560 switch on gi0/1 interface..Can some please help? thank you !!!
current ios is flash:c3560-advipservicesk9-mz.122-44.SE2.bin"
I want to be able to create the following:
interface GigabitEthernet0/1.20
interface GigabitEthernet0/1.30
interface GigabitEthernet0/1.40
etc etc
I have used the no switchport on the gi0/1 interface as well and it keeps rejecting the command
Switch(config)#int gigabitEthernet 0/1?
. : <1-2>
Switch(config)#int gigabitEthernet 0/1.
Switch(config)#int gigabitEthernet 0/1.20
^
% Invalid input detected at '^' marker.
Switch(config)#
Switch#sh run
Building configuration...
Current configuration : 1330 bytes
!
version 12.2
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Switch
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
system mtu routing 1500
ip subnet-zero
ip routing
!
!
!
!
!
!
!
!
!
spanning-tree mode pvst
spanning-tree extend system-id
!
vlan internal allocation policy ascending
!
!
!
!
interface FastEthernet0/1
!
interface FastEthernet0/2
!
interface FastEthernet0/3
!
interface FastEthernet0/4
!
interface FastEthernet0/5
!
interface FastEthernet0/6
!
interface FastEthernet0/7
!
interface FastEthernet0/8
!
interface FastEthernet0/9
!
interface FastEthernet0/10
!
interface FastEthernet0/11
!
interface FastEthernet0/12
!
interface FastEthernet0/13
!
interface FastEthernet0/14
!
interface FastEthernet0/15
!
interface FastEthernet0/16
!
interface FastEthernet0/17
!
interface FastEthernet0/18
!
interface FastEthernet0/19
!
interface FastEthernet0/20
!
interface FastEthernet0/21
!
interface FastEthernet0/22
!
interface FastEthernet0/23
!
interface FastEthernet0/24
!
interface GigabitEthernet0/1
description **** Create sub interfaces ***
!
interface GigabitEthernet0/2
!
interface Vlan1
no ip address
shutdown
!
ip classless
ip http server
ip http secure-server
!
!
!
control-plane
!
!
line con 0
line vty 5 15
!
end
Switch#
05-09-2010 07:38 AM
Hi,
Unfortunately, you can not create sub-interface on 3560s or 3750s.
HTH
Reza
05-10-2010 04:28 AM
Thank you for the information..appreciate the help..it seems there are options
to do so with the IOS..but it just does not take..thanks
05-09-2010 07:55 AM
You don't need to create subinterfaces on a L3 switch. Instead make the port a trunk port and then create a L3 SVI for each vlan you want to route eg.
int gi0/1
switchport trunk encapsulation dot1q
switchport mode trunk
int vlan 10
ip address 192.168.5.1 255.255.255.0
int vlan 11
ip address 192.168.6.1 255.255.255.0
etc. for each vlan. So where you would create a subinterface with an IP addressc create a L3 SVI as above.
Jon
05-10-2010 04:35 AM
Thanks for your help..appreciate everyones feedback and quick responce..thanks again!!!
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