cannot create vlan on 2911 w/ios 15

Unanswered Question
Jun 7th, 2010

when I issue the vlan100 command at global

config I get;

Router(config)#int vlan 100
                       ^
% Invalid input detected at '^' marker.

here is a sh ver with my license info.

Technology Package License Information for Module:'c2900'

----------------------------------------------------------------
Technology    Technology-package          Technology-package
              Current       Type          Next reboot 
-----------------------------------------------------------------
ipbase        ipbasek9      Permanent     ipbasek9
security      securityk9    Permanent     securityk9
uc            uck9          Permanent     uck9
data          None          None          None

Configuration register is 0x2102

I have this problem too.
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ubuntu_guy Mon, 06/07/2010 - 05:49

Router#sh vlan-switch

VLAN Name                             Status    Ports
---- -------------------------------- --------- -------------------------------
1    default                          active   
100  VLAN0100                         active   
1002 fddi-default                     act/unsup
1003 token-ring-default               act/unsup
1004 fddinet-default                  act/unsup
1005 trnet-default                    act/unsup

VLAN Type  SAID       MTU   Parent RingNo BridgeNo Stp  BrdgMode Trans1 Trans2
---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------
1    enet  100001     1500  -      -      -        -    -        1002   1003
100  enet  100100     1500  -      -      -        -    -        0      0  
1002 fddi  101002     1500  -      -      -        -    -        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  
Router#

Reza Sharifi Mon, 06/07/2010 - 05:53

Richard,

You can not create an SVI on the router.  You can however assign vlan id under the physical interface

interface gi0/0

vlan-id xxx

HTH

Reza

ubuntu_guy Mon, 06/07/2010 - 05:57

correct me if I'm wrong but isnt SVI just for switching? This is a 2911 router.

Chetan Kumar Ress Mon, 06/07/2010 - 06:10

Hi

2911 is an router , But if you have switch module then you can create SVI interface . Because i was having 1812 router and in that i was having 8 port switch module and i was able to create SVI interface.

But need to check wether 2911 Router support this feature or not.

Regards

Chetan Kumar

ubuntu_guy Mon, 06/07/2010 - 06:47

This is my fisrt time using the 2911, how is it different from the 2800 series routers that all

ow me to create vlans without having a switch module installed. I just think it's odd that I cant even create a vlan.

Thanks very much for your repleis, I very much appreciate the help.

.,

ubuntu_guy Mon, 06/07/2010 - 07:16

I always use a vlan on the router for the voice. I'll have a

hotspot hanging off the router as well, that'll also be a seperate vlan. I just like to keep stuff seperate where I can.

According to cisco you have to use the vlan-database, which is odd since that's on the brink of not supported anymore.

francisco_1 Mon, 06/07/2010 - 07:42

You gonna need to have EtherSwitch Service Module on your router to create a vlan SVI. Or the other option is to have the vlans on a switch and create the subinterfaces on the router to do inter-vlan routing between your vlans on the switch.

By having the  Cisco Enhanced EtherSwitch Service Modules, it will greatly expands the 2911 router's capabilities by integrating industry-leading Layer 2 and Layer 3 switching with feature sets identical to those found in the Cisco Catalyst® 3560-E and Catalyst 2960 Series Switches with POE for your phones.

Francisco.

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