This is exactly what happened to me when i installed my 5509 switch.... And
i am also using win2k for DHCP.. The fix is to enable "portfast" on the
switch ports.. Only enable them on the ports that are attached to end
stations (not to other bridges, switches or routers)
Here is an URL that come in handy....
http://www.cisco.com/warp/customer/473/12.html
tell me how it went...
Santosh
"max hill" <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> Have not seen this one, any feedback would be great!
>
> Topology:
> Have 2-5509/2sups/2RSFC
> 1-remote building with 5509 (single fiber between)
> 1-corp building with 5509
>
> 3548/24 for both locations for end user wire rooms
>
> Running 802.1Q, trunking/etherchannels between
> 3500 and 5509. Trunking between 5509 to 5509.
>
> On the 3500 assigning users of ports to vlan.
> So if Joe in acct is on port 1, he goes to acct vlan.
>
> Problem:
> When took users to (new network) new 3500, having
> major DHCP problems. It is having major problems
> obtaining DHCP IP addresses. For exp. some in vlan 20
> get ip, while others in 20 dont. Took my laptop and
> assigned to different vlans. Could get ip for vlan 15,
> but not vlan 10. (assigned prot to both
> vlans at the time trying to obtain an ip).
>
> There is not a constant or regular pattern to this,
> very various in obtaining ip. So had to give statics
> now.Using Win2000 for DHCP.
>
> Also, while doing debug arp found some interesting
> behavior:0050.0488.6c20 000 0.0000.0000 wrong cable,
> interface Vlan9,
>
> DUPADDR: Duplicate address xxxxon Vlan182,
>
> IP ARP: creating incomplete entry for IP address
>
> Has anyone seen this type of behavior? I am at odds,
> any suggestion and feedback!
>
> thanks
> max
> [EMAIL PROTECTED]
>
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