If you only have hosts connected to the switch (not L2 devices), enable port-fast on the host ports. This eliminates the spanning tree states on the port and thus the port begins forwarding packets with a few seconds of the link coming online. This might be the problem if static IPs are assigned to the hosts. If DHCP is being used and DHCP is working, I'd expect it is not a problem with the port and spanning tree.
One other possible gotcha is regarding routing and the VLAN interface. If no devices are active on the VLAN, the router might consider the VLAN subnet "down" and withdraw the route from its advertisements. Priscilla Oppenheimer wrote: > > You all remember my very simple campus network re-design that I've been > helping out with? It sure has been keeping me humble. ;-) > > So we upgraded the single subnet to two subnets and two VLANs. > > Everything is working OK except for Windows networking. The PCs on the new > subnet can't find a domain controller for authentication. > > So, you can feel free to yell at me for not gathering more information on > the symptoms, but the client hasn't told me much. ;-) But does this ring a > bell with anyone? Are there standard recommendations on how to handle this > in a subnetted VLANed internetwork. > > I'm not too well informed on Windows networking. My co-author wrote that > chapter in my troubleshooting book. > > Thank-you so much! > > Priscilla Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=60149&t=60136 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
