/?????? ????????? ??? ????? ????????????? ???????, ? ?????? ??????? ?????????? ? ????????, ??????? ?????????. ???? STP (?? rapid) ? ????????? ?????????: / ??, ?? ????? ????????? ??? ? ?????? ;-) /? ???? ????????? - root@sw5, ? ?????? ????????? ?? (sw2-sw1)@sw2. ???????? ??????? ? ?????????: 1) ???? ? ??? ???? sw4-sw2, ?? sw4 ??????? TCN ? ??????? sw5 ? ?????????, ??????????????, ??????? ???????? TCN, ??????? ???????? ? ??? ?? ????, ? ???????? ??? ??????? ???????????? TCN: / _sw4(config-if)#shut sw4(config-if)#_ *Oct 13 23:16:35.647: STP: VLAN0001 sent Topology Change Notice on Gi1/0/3* Oct 13 23:16:35.647: %LINK-5-CHANGED: Interface GigabitEthernet1/0/1, changed state to administratively down Oct 13 23:16:36.653: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/1, changed state to down _sw5#_ Oct 13 23:16:35.644: STP: VLAN0001 rx BPDU: config protocol = ieee, packet from FastEthernet0/3 , linktype IEEE_SPANNING , enctype 2, encsize 17 Oct 13 23:16:35.644: STP: enc 01 80 C2 00 00 00 EC 44 76 F7 28 83 00 07 42 42 03 Oct 13 23:16:35.644: STP: Data 00000080 Oct 13 23:16:35.644: STP: VLAN0001 Fa0/3:0000 00 80 *Oct 13 23:16:35.644: STP: VLAN0001 Topology Change rcvd on Fa0/3* Oct 13 23:16:35.644: STP: *VLAN0001 Fa0/3 tx BPDU*: config protocol=ieee Data : 0000 00 00 *81* 6001EC30915E0F00 00000000 6001EC30915E0F00 8005 0000 1400 0500 0F00 /????? sw2 ???????????? ? ????????????, ?? ???? ???????? TCN ? ??????? root (sw1->sw5), ??????? ?????????????? ????? ?? ??? ?? ????? - ??????? ? ????? ?? sw1 ? ???? ?? ????????:/ Oct 13 23:16:40.711: STP: VLAN0001 rx BPDU: config protocol = ieee, packet from FastEthernet0/1 , linktype IEEE_SPANNING , enctype 2, encsize 17 Oct 13 23:16:40.711: STP: enc 01 80 C2 00 00 00 A4 0C C3 27 42 81 00 07 42 42 03 Oct 13 23:16:40.719: STP: Data 00000080 Oct 13 23:16:40.719: STP: VLAN0001 Fa0/1:0000 00 80 *Oct 13 23:16:40.719: STP: VLAN0001 Topology Change rcvd on Fa0/1* Oct 13 23:16:40.719: STP: *VLAN0001 Fa0/1 tx BPDU*: config protocol=ieee Data : 0000 00 00 *81* 6001EC30915E0F00 00000000 6001EC30915E0F00 8003 0000 1400 0500 0F00 /2) ??, ???? ? ??? ???? sw4-sw5 (?????????? ?? ????, ? ????? ???????), ?? sw5 ?? ???? ?? ??????? ? ????? ?? ??????? ?????, ? ???????? ??????????? ?????? ????? ??? ???????? TCN ?? ??????? sw2->sw1:/ Oct 13 23:32:09.240: STP[1]: Generating TC trap for port FastEthernet0/3 Oct 13 23:32:09.248: %LINK-3-UPDOWN: Interface FastEthernet0/3, changed state to down Oct 13 *23:32:10*.246: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/3, changed state to down Oct 13 *23:32:28*.643: STP: VLAN0001 rx BPDU: config protocol = ieee, packet from FastEthernet0/1 , linktype IEEE_SPANNING , enctype 2, encsize 17 Oct 13 23:32:28.643: STP: enc 01 80 C2 00 00 00 A4 0C C3 27 42 81 00 07 42 42 03 Oct 13 23:32:28.643: STP: Data 00000080 Oct 13 23:32:28.643: STP: VLAN0001 Fa0/1:0000 00 80 Oct 13 23:32:28.643: STP: VLAN0001 Topology Change rcvd on Fa0/1 Oct 13 23:32:29.641: STP: VLAN0001 Fa0/1 tx BPDU: config protocol=ieee Data : 0000 00 00 81 6001EC30915E0F00 00000000 6001EC30915E0F00 8003 0000 1400 0500 0F00 /?????? ?????????? ??? ? ???????????? ????????? ? 20 ?????? (??????????? ???????? ????????), ???? sw2 ???????????? ? ??????? ????????????? Hello ?? ????? sw5-sw4-sw2:/ Oct 13 23:32:09.609: STP: VLAN0001 heard root 32769-ec44.76f7.2880 on Fa0/1 Oct 13 23:32:11.152: STP: VLAN0001 heard root 32769-ec44.76f7.2880 on Fa0/1 Oct 13 23:32:13.157: STP: VLAN0001 heard root 32769-ec44.76f7.2880 on Fa0/1 Oct 13 23:32:15.162: STP: VLAN0001 heard root 32769-ec44.76f7.2880 on Fa0/1 Oct 13 23:32:17.167: STP: VLAN0001 heard root 32769-ec44.76f7.2880 on Fa0/1 Oct 13 23:32:19.172: STP: VLAN0001 heard root 32769-ec44.76f7.2880 on Fa0/1 Oct 13 23:32:21.177: STP: VLAN0001 heard root 32769-ec44.76f7.2880 on Fa0/1 Oct 13 23:32:23.181: STP: VLAN0001 heard root 32769-ec44.76f7.2880 on Fa0/1 Oct 13 23:32:25.186: STP: VLAN0001 heard root 32769-ec44.76f7.2880 on Fa0/1 Oct 13 23:32:27.191: STP: VLAN0001 heard root 32769-ec44.76f7.2880 on Fa0/1 Oct 13 23:32:27.611: STP: VLAN0001 new root port Fa0/2, cost 119 Oct 13 23:32:27.611: STP: VLAN0001 Fa0/2 -> listening Oct 13 23:32:28.642: STP: VLAN0001 Topology Change rcvd on Fa0/1 Oct 13 23:32:28.642: STP: VLAN0001 sent Topology Change Notice on Fa0/2 Oct 13 23:32:42.618: STP: VLAN0001 Fa0/2 -> learning Oct 13 23:32:57.625: STP: VLAN0001 sent Topology Change Notice on Fa0/2 Oct 13 23:32:57.625: STP: VLAN0001 Fa0/2 -> forwarding /?????? - ??? ???? ??? ???, ??? "????? ????" ??????????????? ?? root bridge ?? ???????? ? ????????????? TCN? ? ?????? ??????? ?????????? ?????????? - root bridge ???? ????????? ?? ???????????, ? ??????? ?? ?????? ??????? ??????, ?.?. ??? ????: (??????? ?????) >>> [edge switch] --- [root bridge] --- [edge switch] <<< (??????? ?????) ??? ????, ????? "??????????" ?????????? ?????????? ? edge-???????????, ??????? ????? ????? TCN ? ??????? root. ??? ???? ??? ??? ? ???? ?? well-known ???????? :-) ???????. /
