Recently, I've noticed an awful amount of information that is coming from our
2950XL switch. The following is the setup: C2821 router connected gigabitethernet port to a linux server (fw), both have gigabit ethernet cards. They are connected using a crossover cable. The 2nd gigabitethernet card on the linux server is connected to the C2950XL 48port switch. I monitor the traffic on both eth0 (incoming and outgoing to the internet) and eth1 (incoming and outgoing traffic to the LAN). I happened to notice the log of STP traffic on the eth1 interface and was wondering if STP is to prevent looping in a switched network this would be valid in a multiple switch environment. Why do I need to worry about it in a single switch environment? Trying to find out which device is 01:80:c2:00:00:00, this is where the packets seemed destined to. But I cannot see any device with this MAC address. Is this a broadcast? If so can it be shut down/off? I ask because it seems to broadcast packets every second or 2. Trying to trim the amount of information the switch is generating. The information is: 6502.781220 00:13:c3:d9:0a:b2 -> 01:80:c2:00:00:00 STP Conf. Root = 32769/00:13:c3:d9:0a:80 Cost = 0 Port = 0x8032 6503.998413 00:13:c3:d9:0a:b2 -> 01:00:0c:cc:cc:cc LLC U, func = UI; SNAP, OUI 0x00000C (Cisco), PID 0x2004 6504.793148 00:13:c3:d9:0a:b2 -> 01:80:c2:00:00:00 STP Conf. Root = 32769/00:13:c3:d9:0a:80 Cost = 0 Port = 0x8032 6506.815214 00:13:c3:d9:0a:b2 -> 01:80:c2:00:00:00 STP Conf. Root = 32769/00:13:c3:d9:0a:80 Cost = 0 Port = 0x8032 6508.829056 00:13:c3:d9:0a:b2 -> 01:80:c2:00:00:00 STP Conf. Root = 32769/00:13:c3:d9:0a:80 Cost = 0 Port = 0x8032Thanks