trunk 口自动down掉

unix_xiaod

我的qq是6150873，如有需要，随时联系。

qdigrp

非常感谢你，我马上试试

qdigrp

我将结果反馈给大家：
1）.我现在将所有的老的c_2950设备全部做了no keepalive
2）. 我将所有的老的c_2950做trunk下的loopback都enabled了。
目前似乎比以前要稳定，再观察一段时间。告诉大家。

另：

您们所说的spanning-tree这个协议，在我现在整个拓扑里面都没有配。都是按照默认的配置来的。
所以我发不了任何的spanning-tree上的配置。

-----------------    --------------
udld                 Disabled
bpduguard            Disabled
security-violatio    Disabled
channel-misconfig    Disabled
vmps                 Disabled
pagp-flap            Disabled
dtp-flap             Disabled
link-flap            Disabled
psecure-violation    Disabled
sfp-config-mismat    Disabled
gbic-invalid         Disabled
dhcp-rate-limit      Disabled
unicast-flood        Disabled
storm-control        Disabled
arp-inspection       Disabled
loopback             Disabled

这些默认都是disabled  我如果都把它enabled的话，是否会带来什么意想不到的影响呢？
请指教！！！！！！！！！！

aroamer

应该是STP的配置问题

qdigrp

晕死，现在，又出现这种如下问题！！！
0:03:35: %SW_MATM-4-MACFLAP_NOTIF: Host 0011.e500.a383 in vlan 61 is flapping between port Fa0/25 and port Gi0/1
00:03:36: %SW_MATM-4-MACFLAP_NOTIF: Host 001d.0912.f5b5 in vlan 41 is flapping between port Fa0/45 and port Gi0/1
00:03:36: %SW_MATM-4-MACFLAP_NOTIF: Host 0023.cd90.d56d in vlan 23 is flapping between port Gi0/1 and port Fa0/45
00:03:36: %SW_MATM-4-MACFLAP_NOTIF: Host 0021.9b69.16d0 in vlan 23 is flapping between port Fa0/47 and port Gi0/1
00:03:37: %SW_MATM-4-MACFLAP_NOTIF: Host 0023.aea6.1f63 in vlan 41 is flapping between port Gi0/1 and port Fa0/45
00:03:37: %SW_MATM-4-MACFLAP_NOTIF: Host 0007.3bb9.8a3b in vlan 23 is flapping between port Fa0/47 and port Gi0/1
00:03:37: %SW_MATM-4-MACFLAP_NOTIF: Host 0007.3bb9.8dec in vlan 16 is flapping between port Fa0/45 and port Gi0/1
00:03:37: %SW_MATM-4-MACFLAP_NOTIF: Host 001f.1618.88bd in vlan 41 is flapping between port Gi0/1 and port Fa0/45
00:03:38: %SW_MATM-4-MACFLAP_NOTIF: Host 0011.e500.f9fe in vlan 7 is flapping between port Fa0/45 and port Gi0/1
00:03:38: %SW_MATM-4-MACFLAP_NOTIF: Host 0007.3bb9.8e0f in vlan 43 is flapping between port Fa0/45 and port Gi0/1
00:03:39: %SW_MATM-4-MACFLAP_NOTIF: Host b8ac.6f42.0a51 in vlan 23 is flapping between port Fa0/47 and port Gi0/1
00:03:43: %SW_MATM-4-MACFLAP_NOTIF: Host 001e.c93f.3bac in vlan 23 is flapping between port Fa0/45 and port Gi0/1
00:03:43: %SW_MATM-4-MACFLAP_NOTIF: Host 001d.0912.f258 in vlan 11 is flapping between port Gi0/1 and port Fa0/48
00:03:44: %SW_MATM-4-MACFLAP_NOTIF: Host 0016.1770.a133 in vlan 46 is flapping between port Fa0/45 and port Gi0/1
00:03:45: %SW_MATM-4-MACFLAP_NOTIF: Host 0022.1912.ec85 in vlan 23 is flapping between port Gi0/1 and port Fa0/47
00:03:45: %SW_MATM-4-MACFLAP_NOTIF: Host f04d.a221.b8aa in vlan 61 is flapping between port Gi0/1 and port Fa0/47

qdigrp

请问是什么意思？

qdigrp

查了一下相关的资料，说出现这个问题，应该就是stp引起的

但我想请问， 我这个拓扑，应该如何配正确的stp 协议呢，

help me！！！

qdigrp

我看了一下spanning-tree的信息：以下这些信息是否正确！！！！！
VLAN0100 is executing the ieee compatible Spanning Tree protocol
  Bridge Identifier has priority 32768, sysid 100, address 000f.34f8.3dc0
  Configured hello time 2, max age 20, forward delay 15
  We are the root of the spanning tree
  Topology change flag not set, detected flag not set
  Number of topology changes 724 last change occurred 00:56:07 ago
          from GigabitEthernet3/1
  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 70 (FastEthernet2/6) of VLAN0100 is forwarding
   Port path cost 19, Port priority 128, Port Identifier 128.70.
   Designated root has priority 32868, address 000f.34f8.3dc0
   Designated bridge has priority 32868, address 000f.34f8.3dc0
   Designated port id is 128.70, designated path cost 0
   Timers: message age 0, forward delay 0, hold 0
   Number of transitions to forwarding state: 1
   Link type is point-to-point by default
   BPDU: sent 3283830, received 108

Port 79 (FastEthernet2/15) of VLAN0100 is forwarding
   Port path cost 19, Port priority 128, Port Identifier 128.79.
   Designated root has priority 32868, address 000f.34f8.3dc0
   Designated bridge has priority 32868, address 000f.34f8.3dc0
   Designated port id is 128.79, designated path cost 0
   Timers: message age 0, forward delay 0, hold 0
   Number of transitions to forwarding state: 1
   Link type is point-to-point by default
   BPDU: sent 1246115, received 0

Port 83 (FastEthernet2/19) of VLAN0100 is forwarding
   Port path cost 19, Port priority 128, Port Identifier 128.83.
   Designated root has priority 32868, address 000f.34f8.3dc0
   Designated bridge has priority 32868, address 000f.34f8.3dc0
   Designated port id is 128.83, designated path cost 0
   Timers: message age 0, forward delay 0, hold 0
   Number of transitions to forwarding state: 1
   Link type is point-to-point by default
   BPDU: sent 2812831, received 43
         
Port 87 (FastEthernet2/23) of VLAN0100 is forwarding
   Port path cost 19, Port priority 128, Port Identifier 128.87.
   Designated root has priority 32868, address 000f.34f8.3dc0
   Designated bridge has priority 32868, address 000f.34f8.3dc0
   Designated port id is 128.87, designated path cost 0
   Timers: message age 0, forward delay 0, hold 0
   Number of transitions to forwarding state: 1
   Link type is point-to-point by default
   BPDU: sent 3283631, received 210

Port 89 (FastEthernet2/25) of VLAN0100 is forwarding
   Port path cost 19, Port priority 128, Port Identifier 128.89.
   Designated root has priority 32868, address 000f.34f8.3dc0
   Designated bridge has priority 32868, address 000f.34f8.3dc0
   Designated port id is 128.89, designated path cost 0
   Timers: message age 0, forward delay 0, hold 0
   Number of transitions to forwarding state: 1
   Link type is point-to-point by default
   BPDU: sent 4028380, received 197

Port 93 (FastEthernet2/29) of VLAN0100 is forwarding
   Port path cost 19, Port priority 128, Port Identifier 128.93.
   Designated root has priority 32868, address 000f.34f8.3dc0
   Designated bridge has priority 32868, address 000f.34f8.3dc0
   Designated port id is 128.93, designated path cost 0
   Timers: message age 0, forward delay 0, hold 0
   Number of transitions to forwarding state: 1
   Link type is point-to-point by default
   BPDU: sent 3274058, received 1

Port 129 (GigabitEthernet3/1) of VLAN0100 is forwarding
   Port path cost 4, Port priority 128, Port Identifier 128.129.
   Designated root has priority 32868, address 000f.34f8.3dc0
   Designated bridge has priority 32868, address 000f.34f8.3dc0
   Designated port id is 128.129, designated path cost 0
   Timers: message age 0, forward delay 0, hold 0
   Number of transitions to forwarding state: 1
   Link type is point-to-point by default
   BPDU: sent 89713, received 9

ssffzz1

早说过是环路。非要走歪门邪道解决。不走正路。这就是后遗症

marsteel

最近在做冗余备份(standby )，大部份的配置工作都已完成了，并且测试也都成功了。

但是很遗憾的是在经过 ...
qdigrp 发表于 2010-10-15 10:56

    交换机keepalive导致的，在所有交换机的所有级联口上配置no keepalive命令可以忽略loopback这个错误，这样级联不会被err-disable掉，昨天遇到这个问题了。