Re: Can't get vlans to work after daisychaining a second switch

On Oct 29, 6:20 am, Trendkill <jpma...@xxxxxxxxx> wrote:
On Oct 29, 6:08 am, Steven Carr <g...@xxxxxxxxx> wrote:





1crazyri...@xxxxxxxxx wrote:
I have a 4507R at the core of my network with trunks extending to the
access layer switches (3560G) where I group ports by vlan. I want to
daisychain a second switch and have the same ability to group ports by
vlan as I do on the first switch. I defined a second trunk port on
switch A, defined a trunk port on switch B and plugged them in using a
crossover cable. I then assiged a port on switch B to a specific vlan
and plugged in my laptop but I never received a DHCP IP address. It
works fine from switch A so what could I have done wrong?

thanks

Have you setup the VLANs on the second switch? or are you using VTP to
advertise/distribute them.

Try a> show vlan(s)

on the second switch

Steve

--
Steve Carrhttp://gpf.me.uk

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Technically, provided you are trunking the vlans properly, vtp
shouldn't matter. While I would definitely agree that vtp is the way
to go to keep a nice succinct network, I have seen many designs where
it is not used. Once you do a show vlan to see what vlans he knows
about, are you sure the vlan is up (show ip int brief) assuming this
is a layer 3 switch. Additionally, do a show trunk on both sides and
make sure you aren't pruning anything back on either side. Lastly,
may want to manually set an IP and do some pings just to make sure.
You didn't create a SVI on the vlan on the new switch right? Doing so
may confuse the issue, especially when dealing with ip-helpers.- Hide quoted text -

- Show quoted text -

Thanks for your help. I did a show trunk and notices that the vlan I
was having trouble with was not showing up on the list. I used the
command "switchport trunk allow vlan" and I added the vlan that was
missing. This did the trick. I'm sure there is a bigger problem but at
the moment I have no time to continue working on it.

thanks!

.

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