>Обнаружил сейчас еще проблему в том, что C3745 не обменивается
>маршрутами с Cat3550, хотя на обоих стоят одинаковые настройки зоны:
>
>router eigrp 1
> network 172.16.0.0
> network 192.168.0.0
> no auto-summary
>Данную проблему решил. Оказывается радиоточки доступа не передавали пакеты EIGRP. Уже обрадовался, что и STP заработает, но... Проблема осталась - при подключении второго линка начинаются косяки. Вот вывод команд с маршрутизатора. Я думаю там проблему увидел, но как победить - пока не нашел:
С Cat2950 (я его назначил root для vl 88 - выделено) после no sh на резервном порту:
VLAN0088
Spanning tree enabled protocol ieee
Root ID Priority 24664
Address 0012.43da.0900
This bridge is the root
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 24664 (priority 24576 sys-id-ext 88)
Address 0012.43da.0900
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 15
Interface Role Sts Cost Prio.Nbr Type
---------------- ---- --- --------- -------- --------------------------------
Fa0/14 Desg FWD 19 128.14 Shr
Fa0/15 Desg FWD 19 128.15 Shr
Fa0/16 Desg FWD 19 128.16 Shr
Fa0/18 Desg FWD 100 128.18 P2p
А вот с C3745 до и после подключения резервного порта:
Bridge group 88 is executing the ieee compatible Spanning Tree protocol
Bridge Identifier has priority 32768, address 0012.0195.ec51
Configured hello time 2, max age 20, forward delay 15
We are the root of the spanning tree
Topology change flag set, detected flag set
Number of topology changes 17 last change occurred 00:08:36 ago
Times: hold 1, topology change 35, notification 2
hello 2, max age 20, forward delay 15
Timers: hello 0, topology change 21, notification 0, aging 15
Port 10 (FastEthernet0/0.88) of Bridge group 88 is forwarding
Port path cost 19, Port priority 128, Port Identifier 128.10.
Designated root has priority 32768, address 0012.0195.ec51
Designated bridge has priority 32768, address 0012.0195.ec51
Designated port id is 128.10, designated path cost 0
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 4
BPDU: sent 8306, received 182
Port 13 (FastEthernet2/0.88) of Bridge group 88 is forwarding
Port path cost 19, Port priority 128, Port Identifier 128.13.
Designated root has priority 32768, address 0012.0195.ec51
Designated bridge has priority 32768, address 0012.0195.ec51
Designated port id is 128.13, designated path cost 0
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
BPDU: sent 5824073, received 0
------------
Bridge group 88 is executing the ieee compatible Spanning Tree protocol
Bridge Identifier has priority 32768, address 0012.0195.ec51
Configured hello time 2, max age 20, forward delay 15
Current root has priority 24664, address 0012.43da.0900
Root port is 10 (FastEthernet0/0.88), cost of root path is 19
Topology change flag not set, detected flag not set
Number of topology changes 17 last change occurred 00:09:49 ago
Times: hold 1, topology change 35, notification 2
hello 2, max age 20, forward delay 15
Timers: hello 0, topology change 0, notification 0, aging 300
Port 10 (FastEthernet0/0.88) of Bridge group 88 is forwarding
Port path cost 19, Port priority 128, Port Identifier 128.10.
Designated root has priority 24664, address 0012.43da.0900
Designated bridge has priority 24664, address 0012.43da.0900
Designated port id is 128.18, designated path cost 0
Timers: message age 2, forward delay 0, hold 0
Number of transitions to forwarding state: 4
BPDU: sent 8332, received 192
Port 13 (FastEthernet2/0.88) of Bridge group 88 is forwarding
Port path cost 19, Port priority 128, Port Identifier 128.13.
Designated root has priority 24664, address 0012.43da.0900
Designated bridge has priority 32768, address 0012.0195.ec51
Designated port id is 128.13, designated path cost 19
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
BPDU: sent 5824109, received 0
Как видно из выделенного - он увидел рутовый Cat2950, но почему-то предпочтение отдал порту Port 10 (FastEthernet0/0.88), присвоив ему цену 0... Вот как изменить его мнение, чтобы он 0 присваивал Port 13 (FastEthernet2/0.88)? Как вариант самый простой хочу попробовать просто поменять местами интерфейсы, но не знаю, получится или нет :)
Вариант для распечатки
Маршрутизаторы CISCO и др. оборудование. (Public)
(ok) on 23-Апр-09, 10:08 
