Hello all!
I've run into a big STP problem that I need advice on how to deal with.
See attached PDF for a network drawing of the current network.
I've got one core that I have configured to be the STP root on 3 VLANS
The rest are pretty much access-switches (Cat2960G) that I connect with Etherchannels.
The issue that I'm having is that one switch (of a total of 9) are not getting the STP information correctly.
The malfunctioning switch wants to become STP root on two of the three VLANS. They get the correct STP priority of the network management VLAN (200) but not on the other two VLANS (119,125).
See the stp-error word document for STP outputs.
When debugging STP events I see in the edge-switch that it gets STP for VLANS that doesnt even exists on the network.
Jan 28 14:29:11.845: STP SW: PROC RX: 0100.0ccc.cccd<-001e.1430.9e15 type/len 0032no de
Jan 28 14:29:11.845: encap SNAP linktype sstp vlan 109 len 64 on v109 Po3
Jan 28 14:29:11.854: AA AA 03 00000C 010B SSTP
Jan 28 14:29:11.854: CFG P:0000 V:02 T:02 F:3C R:607D 001f.ca34.3880 00000005
Jan 28 14:29:11.854: B:807D 001e.1430.9e00 80.48 A:0200 M:1400 H:0200 F:0F00
Jan 28 14:29:11.854: T:0000 L:0002 D:007D
Jan 28 14:29:11.854: STP SW: DROP BPDU: received sstp(118) BPDU on interface Po3 vlan 109: vlan 109 does not exist
Jan 28 14:29:12.835: STP SW: RX ISR: 0100.0ccc.cccd<-001e.1430.9e15 type/len 0032
Jan 28 14:29:12.835: encap SNAP linktype sstp vlan 103 len 64 on v103 Po3
Jan 28 14:29:12.835: AA AA 03 00000C 010B SSTP
Jan 28 14:29:12.835: CFG P:0000 V:02 T:02 F:3C R:6077 001f.ca34.3880 00000005
Jan 28 14:29:12.835: B:8077 001e.1430.9e00 80.48 A:0200 M:1400 H:0200 F:0F00
Jan 28 14:29:12.835: T:0000 L:0002 D:0077
Jan 28 14:29:12.835: STP SW: PROC RX: 0100.0ccc.cccd<-001e.1430.9e15 type/len 0032
Jan 28 14:29:12.835: encap SNAP linktype sstp vlan 103 len 64 on v103 Po3
Jan 28 14:29:12.835: AA AA 03 00000C 010B SSTP
Jan 28 14:29:12.835: CFG P:0000 V:02 T:02 F:3C R:6077 001f.ca34.3880 00000005
Jan 28 14:29:12.835: B:8077 001e.1430.9e00 80.48 A:0200 M:1400 H:0200 F:0F00
Jan 28 14:29:12.835: T:0000 L:0002 D:0077
Jan 28 14:29:12.835: STP SW: DROP BPDU: received sstp(118) BPDU on interface Po3 vlan 103: vlan 103 does not exist
Only have VLAN 119,125 and 200 on the entire network.
No other switch that I debug gets that message when I check them.
Anyone got a hint of what I may have done wrong?
Thank you
