《第三层交换技术》中文高清版电子书

chenxjuan

kaisicisco

红魔玉儿

︶￣1梦醉红颜ゝ

嘿嘿

轩辕

k-1

wenjie168

无情过客

谢谢分享……

qq82805546

OSPF common errors and checking methods

OSPF is a more complex configuration protocol, so in the actual operation is very easy to make mistakes, here to introduce OSPF some common mistakes and checking methods:

A, OSPF neighbor relationship cannot be established

This is the actual engineering of the most common mistakes, for this kind of errors to the following command to carry out investigation:

First need to use Show ip ospf interface command, the command output information can affect the OSPF neighbor relationship between several factors are filtered ads:

1, the interface is UP, if the down please do check out.

2, both sides of OSPF router link area is consistent, if not please the area into the same

3, link on both sides of OSPF router interface types are the same, if not please change for the same

4, both sides of the interface of the OSPF router link Hello interval is consistent, if not please change for the same.

5, both sides of the interface of OSPF router link is passive out, if be passive out. Please remove the configuration.

6, both sides of the interface of OSPF router link IP mask is consistent.

If the above configuration is all right, please use the show ip ospf command for the next inspection:

1, both sides of the router-id OSPF router link is the same, if the same change which a router router-id

2, link on both sides of OSPF router interface region types are the same, if not please change into uniform.

3, link on both sides of OSPF router interface are open authentication, if open authentication check configuration authentication password is consistent.

In two, OSPF routing error

This kind of error in large campus network appeared frequently in the routing table, in the inspection found OSPF routing and expected inconsistencies. This investigation needs to check errors along the router interface configuration and OSPF router configuration parameters.

The most common case is the following two:

In 1, the router reference bandwidth inconsistent choices, need to change for consistency.

In 2, route passing through a link on both sides of the router interface cost change is inconsistent, the need to reconfigure the.

In three, OSPF non-backbone area set stub area can see regional summary list.

Area border router in setting the AREA stub without using the no-summary parameter.

In four, OSPF non-backbone area some low-end switch or router forwards the abnormal phenomenon

May be this area routing entries are excessive, beyond some low-end switch and router performance limits. Can consider implementing special area to simplify the routing table and smaller area.

flyell123

这下可以好好学习啦~~~

clark0806

zhaobo310

多谢。

sun-andy

huajun

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