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Alcatel OS 6850 + DES-3526 постоянная смета топологии STP ...5 раз в сутки

В центре Alcatel OS 6850 в кольцах по 8-10 длинков DES-3526. Периодически (примерно 5 раз в сутки) случается Topology changed.

Все бы ничего, но колец 2 шт. и топология меняется сразу на всех свичах. Пользователи успевают заметить как происходит смена топологии на 20-ти свичах.

 

Архитектура - 1 вилан(трафик) на свич. Плюс вилан управления 1 на кольцо.

 

Никакой закономерности в том, откуда начинается смена топологии нет - все время с разных свичей (судя по логам).

 

 

На алкателе настроено так

 

OS6850>> show spantree
  Spanning Tree Path Cost Mode : AUTO
Bridge STP Status Protocol Priority(Prio:SysID)
------+----------+--------+--------------------
    1      ON      RSTP       0 (0x0000:0x0000)

OS6850>> show spantree ports
Brdge  Port  Oper Status  Path Cost  Role
-----+------+------------+---------+-------
    1  1/1       FORW           4   DESG
    1  1/2       FORW           4   DESG
    1  1/3       FORW           4   DESG
    1  1/4       FORW           4   DESG
    1  1/5       FORW           4   DESG
    1  1/6       FORW           4   DESG
    1  1/7       FORW           4   DESG
    1  1/8       FORW           4   DESG
    1  1/9       FORW           4   DESG
    1  1/10       DIS           0    DIS
    1  1/11       DIS           0    DIS
    1  1/12       DIS           0    DIS
    1  1/13       DIS           0    DIS
    1  1/14       DIS           0    DIS
    1  1/15       DIS           0    DIS
    1  1/16       DIS           0    DIS
    1  1/17       DIS           0    DIS
    1  1/18       DIS           0    DIS
    1  1/19       DIS           0    DIS
    1  1/20       DIS           0    DIS
    1  1/21      FORW           4   DESG
    1  1/22       DIS           0    DIS
    1  1/23      FORW           4   DESG
    1  1/24      FORW           4   DESG
    1  1/25       DIS           0    DIS
    1  1/26       DIS           0    DIS

OS6850>>



OS6850>> show spantree mode
Spanning Tree Global Parameters
  Current Running Mode  :  Flat,
  Current Protocol      : RSTP,
  Path Cost Mode        : AUTO,
  Auto Vlan Containment : Disabled

 

 

На длинках настроено так

 

 

# STP

config stp version rstp
config stp maxage 20 maxhops 20 forwarddelay 15 txholdcount 6 fbpdu enable
config stp priority 32768 instance_id 0
config stp hellotime 2
config stp mst_config_id name 00:1E:58:9E:C1:FF revision_level 5000
enable stp
config stp ports 1-24 externalCost auto edge true p2p auto state enable
config stp ports 1-24 fbpdu disable
config stp ports 1-24 restricted_role true
config stp ports 1-24 restricted_tcn true
config stp mst_ports 1-26 instance_id 0 internalCost auto priority 128
config stp ports 25-26 externalCost auto edge false p2p auto state enable
config stp ports 25-26 fbpdu enable
config stp ports 25-26 restricted_role false
config stp ports 25-26 restricted_tcn false

 

 

Смена топологии случается вот так

 

 

Jan 13 17:47:56 sw28 10.10.2.28 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:47:57 sw20 10.10.2.20 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:47:57 sw37 10.10.2.37 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:47:57 sw26 10.10.2.26 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:47:58 sw39 10.10.2.39 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:47:58 sw25 10.10.1.25 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:47:58 sw35 10.10.2.35 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:47:58 sw29 10.10.1.29 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:47:58 sw33 10.10.2.33 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:47:58 sw30 10.10.2.30 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:47:58 sw36 10.10.1.36 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:47:58 sw27 10.10.1.27 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:47:58 sw25_2 10.10.1.225 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:47:58 sw61 10.10.1.61 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:47:58 sw38 10.10.1.38 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:47:58 sw31 10.10.2.31 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:00 sw25_1 10.10.1.125 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:01 sw37 10.10.2.37 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:01 sw21 10.10.1.21 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:02 sw19 10.10.1.19 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:02 sw29 10.10.1.29 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:02 sw33 10.10.2.33 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:02 sw25_2 10.10.1.225 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:02 sw27 10.10.1.27 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:02 sw28 10.10.2.28 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:02 sw38 10.10.1.38 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:02 sw31 10.10.2.31 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:04 sw20 10.10.2.20 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:04 sw26 10.10.2.26 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:04 sw35 10.10.2.35 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:04 sw25 10.10.1.25 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:04 sw25_1 10.10.1.125 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:04 sw61 10.10.1.61 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:05 sw37 10.10.2.37 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:06 sw39 10.10.2.39 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:06 sw19 10.10.1.19 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:06 sw29 10.10.1.29 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:06 sw33 10.10.2.33 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:06 sw36 10.10.1.36 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:06 sw27 10.10.1.27 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:06 sw25_2 10.10.1.225 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:06 sw28 10.10.2.28 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:06 sw38 10.10.1.38 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:06 sw31 10.10.2.31 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:07 sw21 10.10.1.21 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:07 sw30 10.10.2.30 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:08 sw20 10.10.2.20 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:08 sw26 10.10.2.26 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:08 sw35 10.10.2.35 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:08 sw25 10.10.1.25 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:08 sw25_1 10.10.1.125 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:08 sw61 10.10.1.61 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:09 sw37 10.10.2.37 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:09 sw31 10.10.2.31 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:10 sw39 10.10.2.39 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:10 sw19 10.10.1.19 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:10 sw29 10.10.1.29 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:10 sw33 10.10.2.33 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:10 sw27 10.10.1.27 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:10 sw25_2 10.10.1.225 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:10 sw36 10.10.1.36 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:10 sw28 10.10.2.28 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:10 sw38 10.10.1.38 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:11 sw21 10.10.1.21 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:11 sw30 10.10.2.30 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:12 sw20 10.10.2.20 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:12 sw26 10.10.2.26 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:12 sw35 10.10.2.35 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:12 sw25 10.10.1.25 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:12 sw25_1 10.10.1.125 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:12 sw61 10.10.1.61 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:12 sw31 10.10.2.31 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:13 sw37 10.10.2.37 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:14 sw39 10.10.2.39 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:14 sw19 10.10.1.19 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:14 sw29 10.10.1.29 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:14 sw33 10.10.2.33 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:14 sw27 10.10.1.27 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:14 sw25_2 10.10.1.225 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:14 sw36 10.10.1.36 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:14 sw28 10.10.2.28 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:14 sw38 10.10.1.38 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:15 sw21 10.10.1.21 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:15 sw30 10.10.2.30 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:16 sw20 10.10.2.20 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:16 sw26 10.10.2.26 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:16 sw35 10.10.2.35 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:16 sw25 10.10.1.25 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:16 sw25_1 10.10.1.125 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:16 sw61 10.10.1.61 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:16 sw31 10.10.2.31 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:17 sw37 10.10.2.37 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:18 sw39 10.10.2.39 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:18 sw19 10.10.1.19 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:18 sw29 10.10.1.29 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:18 sw33 10.10.2.33 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:18 sw27 10.10.1.27 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:18 sw36 10.10.1.36 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:18 sw28 10.10.2.28 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:18 sw38 10.10.1.38 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:19 sw21 10.10.1.21 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:19 sw25_2 10.10.1.225 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:19 sw30 10.10.2.30 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:20 sw20 10.10.2.20 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:20 sw26 10.10.2.26 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:20 sw35 10.10.2.35 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:20 sw25 10.10.1.25 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:20 sw25_1 10.10.1.125 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:20 sw61 10.10.1.61 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:21 sw31 10.10.2.31 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:21 sw37 10.10.2.37 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:22 sw39 10.10.2.39 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:22 sw19 10.10.1.19 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:22 sw29 10.10.1.29 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:22 sw33 10.10.2.33 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:22 sw27 10.10.1.27 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:22 sw28 10.10.2.28 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:22 sw36 10.10.1.36 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:23 sw21 10.10.1.21 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:23 sw30 10.10.2.30 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:23 sw38 10.10.1.38 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:24 sw20 10.10.2.20 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:24 sw26 10.10.2.26 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:24 sw35 10.10.2.35 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:24 sw25 10.10.1.25 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:24 sw25_1 10.10.1.125 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:24 sw25_2 10.10.1.225 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:25 sw31 10.10.2.31 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:25 sw37 10.10.2.37 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:25 sw36 10.10.1.36 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:25 sw61 10.10.1.61 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:26 sw39 10.10.2.39 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:26 sw19 10.10.1.19 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:26 sw29 10.10.1.29 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:26 sw33 10.10.2.33 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:26 sw27 10.10.1.27 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:26 sw28 10.10.2.28 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:27 sw21 10.10.1.21 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:27 sw30 10.10.2.30 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:27 sw38 10.10.1.38 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:28 sw20 10.10.2.20 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:28 sw26 10.10.2.26 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:28 sw35 10.10.2.35 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:28 sw25 10.10.1.25 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:28 sw25_2 10.10.1.225 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:29 sw31 10.10.2.31 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:29 sw61 10.10.1.61 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:30 sw39 10.10.2.39 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:30 sw37 10.10.2.37 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:30 sw25_1 10.10.1.125 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:30 sw29 10.10.1.29 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:30 sw33 10.10.2.33 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:30 sw27 10.10.1.27 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:30 sw28 10.10.2.28 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:30 sw36 10.10.1.36 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:31 sw25_2 10.10.1.225 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:31 sw30 10.10.2.30 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:31 sw38 10.10.1.38 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:32 sw20 10.10.2.20 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:32 sw26 10.10.2.26 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:32 sw19 10.10.1.19 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:32 sw35 10.10.2.35 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:32 sw25 10.10.1.25 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:33 sw25_1 10.10.1.125 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:33 sw21 10.10.1.21 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:33 sw61 10.10.1.61 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:33 sw36 10.10.1.36 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:34 sw39 10.10.2.39 INFO: Topology changed (Instance:0, port:25)
Jan 13 17:48:35 sw19 10.10.1.19 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:35 sw30 10.10.2.30 INFO: Topology changed (Instance:0, port:26)
Jan 13 17:48:36 sw21 10.10.1.21 INFO: Topology changed (Instance:0, port:25)

Edited by telephonist

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а зачем

config stp ports 25-26 fbpdu enable

?? длинки же участвуют в СТП дереве ? зачем и пропускать пакеты ?

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а зачем
config stp ports 25-26 fbpdu enable
?? длинки же участвуют в СТП дереве ? зачем и пропускать пакеты ?

А как нужно?

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у меня

config stp ports 1-26 fbpdu disable

и только если коммутатор нагружен сильно и должен пропустить BDPU пакеты через себя к другому свичу то тогда включено как у вас (на самом коммутаторе STP выключен)

Edited by martini

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какие то вы неправильные рекомендации нашли

 

http://dlink.ru/ru/faq/62/243.html

 

как сказали выше пакеты fbpdu нужно пересылать дальше только если данный коммутатор не участвует в STP

 

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какие то вы неправильные рекомендации нашли

 

http://dlink.ru/ru/faq/62/243.html

 

как сказали выше пакеты fbpdu нужно пересылать дальше только если данный коммутатор не участвует в STP

 

Выключил пересылку - не помогло.

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