- we are running MST, the spanning tree state ist FWD - I see unicast packets on the link, and incoming broadcasts from the remote end
CS7#show spanning-tree interface te1/0/2 Mst Instance Role Sts Cost Prio.Nbr Type ------------------- ---- --- --------- -------- -------------------------------- MST0 Desg FWD 200000 128.54 P2p CS7# Von: [email protected] [mailto:[email protected]] Im Auftrag von Rick Ernst Gesendet: Donnerstag, 6. Mai 2010 17:44 An: Christian Schuler Betreff: Re: [c-nsp] C3750E 10GE Interface: Problem with L2 broadcast/ARP Is the port blocking in STP? Are you seeing any traffic at all on the port? On Thu, May 6, 2010 at 6:46 AM, Christian Schuler <[email protected]> wrote: Hi, I'm debugging for some time on a problem with ARP resolution in our datacenter environment. I found out that ARP requests are not forwarded on one particular 10GE trunk interface, which is therefore unusable. With a monitor and wireshark I see the ARP request coming in and going out on all other ports, but not on Te1/0/2. Actually there are no L2 broadcast packets at all on this port. We already made a software upgrade on the switch, with no improvement, now we run: WS-C3750E-48TD 12.2(52)SE Has anybody an idea what is wrong ? Port config is: interface TenGigabitEthernet1/0/2 switchport trunk encapsulation dot1q switchport trunk native vlan 900 switchport mode trunk switchport nonegotiate spanning-tree cost 200000 Christian --------------------------------------------- PIRONET NDH Datacenter GmbH Christian Schuler http://www.pironet-ndh.com/itk _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/ _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
