The requirements for connecting a router to a switch running multiple VLANs
have been posted to the list before do I won't go into great detail.
If VLAN 1 has an IP address on the switch then you need to set up an IP
address for whichever VLAN you want to act as the management VLAN and THEN
shut down the VLAN 1 interface. However, I've only seen that particular
setup on IOS switches, not Catalyst OS switches. On Cat OS switches
(set-based) the management VLAN is determined by the sc0 interface and if
that happens to be something besides VLAN 1 then VLAN 1 can be ignored. The
control traffic for the switch protocols will use VLAN 1 unless you
specifically re-route them to another VLAN. I wrote another post a month ago
about this (Groupstudy archives -
http://www.groupstudy.com/archives/cisco/200105/msg00795.html), you might
want to check it out since it has bearing on your issue.
Config Summary--
On the switch:
- Make sure that the switch has a management interface set up
- Set the trunking options for the port to the router (set trunking to "on"
so that trunking doesn't have to be negotiated)
- Set port connecting to router as 100Mb full-duplex (To prevent problems
with auto-negotiation)
- Set the remaining ports to be used on the switch to their respective VLANs.
- Make sure that all of the the VLANs you want to connect to the router are
enabled on the trunk link
On the router:
- Make sure the port connecting to the switch is 100Mb full-duplex (To
prevent problems with auto-negotiation)
- Create a subinterface for each VLAN thats configured on the switch
(doesn't have to include default VLANs such as VLAN 1 unless you're using if
for your management interfaces)
- set up appropriate ip addresses on all subinterfaces
- Set up trunking options on the subinterfaces.
- Do a no shutdown on the interface to activate it.
If I can be of any further help, please feel free to contact me.
Karen
*********** REPLY SEPARATOR ***********
On 6/6/2001 at 1:35 PM khramov wrote:
>I've configure 2 VLAN on 5505 and it is connected to 2900.
>In order for my VLANs to work I need to disable VLAN.
>my commands:
>config t
>int vlan 1
>shutdown
>I thought that this would bring down administratively shut down vlan 1 but
>it does not.
>What am I doing wrong?
>
>Alex Collins wrote:
>
>> You need VLAN 1 as a minimum for the switch to operate from my
>understanding
>> (I'm sure to be corrected if wrong). If you only have just one VLAN
(which
>> will be VLAN1) the switch is a single broadcast domain anyway so you can
>> kinda ignore VLAN's entirely at that point.
>>
>> What are you trying to achieve?
>>
>> Alex.
>>
>> -----Original Message-----
>> From: khramov [mailto:[EMAIL PROTECTED]]
>> Sent: 06 June 2001 17:47
>> To: [EMAIL PROTECTED]
>> Subject: VLAN 1 [7:7367]
>>
>> What is the command to shut down VLAN 1 on a switch?
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=7397&t=7367
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