Question

Cisco Vlans Queston

Asked by: damasco

Hi Guy's,

I have a Cisco 4006 switch and I have a Cisco 2950 switch. Here is the problem: The entire Cisco  2950 is on Vlan 1 and I have to connect to Vlan 5 on the Cisco 4000. The 2950 will not work properly unless I put that on Vlan 5 as well. Should I be trunking or something like that to connect these two switches? What would be a suitable solution to stop this from happening.

Thanks
Damian

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Asked On
2003-05-22 at 19:45:23ID20623956
Topics

Miscellaneous Networking

,

Network Operations

Participating Experts
4
Points
125
Comments
5

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Answers

 

by: zuzzyPosted on 2003-05-23 at 07:35:09ID: 8572193

It sounds like it is trunking when it shouldnt be.  It should make no difference what vlan you plug in to as the two switches dont know about each other, they are just a node on the end of a wire.  look out for vtp (vlan trunking protocol) to see if they are trying to reconfigure each other, though again that should have no effect as even if it on both will be in server mode so wouldnt clash.

Strange...

--Zuzzy

 

by: SMackPosted on 2003-05-23 at 07:48:14ID: 8572301

If you intend to use all of the ports on the 2950 on the same VLAN, then all you need to do is plug the 2950 into a 4006 port of the VLAN that you want it on. If you don't enable the VLAN stuff on the 2950 (i.e., put it into the VTP domain and add VLANs to the VLAN database), then it acts a a dumb L2 switch with all ports in one group.

If the 4006 is divided into VLANs and you plug the 2950 into a VLAN port, the VLAN tagging will occur on the 4006 port that the 2950 is plugged into.

Same as above if you intend to use EtherChannel/FastEtherchannel.

If you intend to use VLANs on the 2950, then you need to configure the ports connecting the two switches as trunk ports, create the VLANs in the 2950 VLAN Database, do the "switchport access vlan XX," and configure the VTP domain.

NOTE: If you enable VLANs, and set the VTP domain operating mode as anything other than "transparent," your new VTP configuration may be propagated to the other switches on the network (serious potential for messing up the VLAN structure of your network). If you're not clear about doing this, go to www.cisco.com and do a few searches and read EVERYTHING.

Good Luck

Scott


 

by: CleanupPingPosted on 2003-08-14 at 19:58:57ID: 9151883

damasco:
This old question needs to be finalized -- accept an answer, split points, or get a refund.  For information on your options, please click here-> http:/help/closing.jsp#1
EXPERTS:
Post your closing recommendations!  No comment means you don't care.

 

by: juliancrawfordPosted on 2004-01-17 at 13:41:31ID: 10137657

No comment has been added lately, so it's time to clean up this TA.
I will leave the following recommendation for this question in the Cleanup topic area:

Split: zuzzy {http:#8572193} & SMack {http:#8572301}

Please leave any comments here within the next seven days.
PLEASE DO NOT ACCEPT THIS COMMENT AS AN ANSWER!

Julian Crawford
EE Cleanup Volunteer

20120131-EE-VQP-002

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