交换机端口不停DOWN UP，请各位分析一下

huanhu710 · 发表于 2010-12-15 09:24:02

研发部交换机是普通交换机，公司核心交换机是H3C S3100,现在是研发部交打换机每天早上通电后，和核心交换机相连的那个接口就会不停DOWN UP，DOWN UP个十来分钟后就可以正常上网了，然后一天相安无事，就是中途断电，在接上也不会出现DOWN UP现象！到明天又开始这种现象了！
这是交换机上的日志
Apr  4 17:32:02:162 2000 H3C L2INF/5/PORT LINK STATUS CHANGE:- 1 -
Ethernet1/0/16: is UP
%Apr  4 17:32:02:782 2000 H3C L2INF/5/PORT LINK STATUS CHANGE:- 1 -
Ethernet1/0/16: is DOWN
%Apr  4 17:32:04:662 2000 H3C L2INF/5/PORT LINK STATUS CHANGE:- 1 -
Ethernet1/0/16: is UP
%Apr  4 17:32:05:283 2000 H3C L2INF/5/PORT LINK STATUS CHANGE:- 1 -
Ethernet1/0/16: is DOWN
%Apr  4 17:32:34:628 2000 H3C L2INF/5/PORT LINK STATUS CHANGE:- 1 -
Ethernet1/0/16: is UP
%Apr  4 17:32:35:251 2000 H3C L2INF/5/PORT LINK STATUS CHANGE:- 1 -
Ethernet1/0/16: is DOWN
%Apr  4 17:32:37:128 2000 H3C L2INF/5/PORT LINK STATUS CHANGE:- 1 -
Ethernet1/0/16: is UP

下面这个是用科来抓的五分钟包

togeth16 · 发表于 2010-12-15 09:51:09

你查看一下err-disable 然后配置 errdisable recovery
注：cisco 是这样你可以参考一下华为的具体配置

long_323 · 发表于 2010-12-15 10:05:12

查看一下在交换机端口上有没有开启一些保护机制能？

huanhu710 · 发表于 2010-12-15 11:06:51

[H3C]dis int e1/0/16
Ethernet1/0/16 current state : UP
IP Sending Frames' Format is PKTFMT_ETHNT_2, Hardware address is 000f-e254-70b2
Media type is twisted pair, loopback not set
Port hardware type is 100_BASE_TX
100Mbps-speed mode, full-duplex mode
Link speed type is autonegotiation, link duplex type is autonegotiation
Flow-control is not enabled
The Maximum Frame Length is 9216
Broadcast MAX-ratio: 100%
Unicast MAX-ratio: 100%
Multicast MAX-ratio: 100%
Allow jumbo frame to pass
PVID: 1
Mdi type: auto
Port link-type: access
  Tagged VLAN ID : none
  Untagged VLAN ID : 1
Last 300 seconds input:  75 packets/sec 10902 bytes/sec
Last 300 seconds output:  95 packets/sec 81763 bytes/sec
Input(total):  6168871 packets, 1273367351 bytes
      114310 broadcasts, 3581 multicasts, 0 pauses
Input(normal):  - packets, - bytes
      - broadcasts, - multicasts, - pauses
Input:  32 input errors, 0 runts, 0 giants,  - throttles, 1 CRC
      0 frame,  - overruns, 31 aborts, 0 ignored, - parity errors
Output(total): 7527422 packets, 5990287529 bytes
      129982 broadcasts, 23462 multicasts, 0 pauses
Output(normal): - packets, - bytes
      - broadcasts, - multicasts, - pauses
Output: 0 output errors,  - underruns, - buffer failures
      0 aborts, 0 deferred, 0 collisions, 0 late collisions
      0 lost carrier, - no carrier

这是正常上网时候的SHOW！

long_323 · 发表于 2010-12-15 12:33:43

可以把这个：
100Mbps-speed mode, full-duplex mode
Link speed type is autonegotiation, link duplex type is autonegotiation
看下对端接口，调整为强制百兆全双工。
另外可以换一个接口试一下.

tonylldd · 发表于 2010-12-15 12:54:32

同意楼上，有可能速率不匹配。

交换机端口不停DOWN UP，请各位分析一下

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