looking at this again - question below -- TANSTAAFL "there ain't no such thing as a free lunch"
""pauldongso"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Hi All, > > Please advise how STP participates in the following scenario and why STP > fails to stop the loop? CL: where are you seeing a look? I have configured two switches based on what I read below. sho spanning-tree gives me the following: Interface Port ID Designated Port ID Name Prio.Nbr Cost Sts Cost Bridge ID Prio.Nbr ---------------- -------- --------- --- --------- -------------------- ----- --- Fa0/1 128.1 100 FWD 0 4097 0009.b775.d400 128.1 Fa0/7 128.7 100 FWD 0 4097 0009.b775.d400 128.7 meaning that port Fa0/22 and Fa0/24 are not recognizing vlan 1 at all. the switches both complain that there are vlan mismatches. 6d10h: %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on FastEther net0/46 (1), with Switch_24 FastEthernet0/22 (7). 6d10h: %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on FastEther net0/48 (1), with Switch_24 FastEthernet0/24 (8). 6d > -------------------- > |switch A | > --------------------- > |(vlan 7) | (vlan 8) > | | > | | > |(vlan 1) |(vlan 1) > ------------------- > | switch B | > -------------------- > | | | > vlan 1 hosts > > > In short, switch A has two ports configured with vlan 7, vlan 8 > respectively. Swtich B all ports are at default vlan 1. > links between swA and swB are access mode. > > This scenario creates bridging loop. But just can't figure out why STP > fails to stop loop. CL: again, I am not seeing a loop. I am seeing a problem and no way to fix it other than to correct the vlan mismatch. CL: you sure you don't have another trunk configured on another port? > > Thanks in advance. > > Paul Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58167&t=58099 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
