Analysis: Three Details determine the success or failure of Enterprise router Management (1)

In vro management, some configurations do not have a major impact on the normal operation of the vro on the network, but they can facilitate our management. Such as host name and interface description. However, the configuration in these details makes it easier for us to manage vrouters.

Details 1: Host Name Configuration

Each vro has a name on the network, representing its identity. The default vro name cannot represent any meaning. This random name makes daily network management inconvenient.

In a Cisco router, we can use the Hostname command to set the name of the router. In actual work, we have certain rules for the name of the router. There are two most common naming methods: "Network Administrator name + vro name", such as "milanda_router1. The other type is "vro location + vro name ". Vro has no restrictions on specific naming rules. However, I prefer the following naming method. If the vro name can reflect its physical location, it will undoubtedly bring more convenience to our network management.

Note the following two issues in vro name Configuration.

The first is the name of the vro configured here, which only takes effect locally. It does not affect the router name search, nor affect the normal operation of the router on the network. Because the name is only a code name, it is used by our network administrator. What it represents on the Internet is a serial number of the router, just like a person's ID card. No matter how your name changes, you have only one ID card number.

Second, the host name of the router is required in some special services. For example, the host name of the vro is used for PPP authentication on the vroppp. Therefore, if you have such requirements, you need to give the router a good name.

The specific configuration is as follows:

First, enter the configuration mode. Name # config t

Then, use the Hostname command to name the vro. Name (config) # hostname milanda_QA.

After the name is changed, it takes effect immediately. We can see that the preceding prompt has changed to the name we set. This means that after the vro name is modified, it will not take effect after the host name is changed. It must be emphasized that the name can be modified only in privileged mode.

Details 2: Interface Description Configuration

In my daily work, I also like to describe the interfaces of vrouters. In this case, you do not need to view other information. You only need to view the relevant information in the vro to know the purpose of a vro interface. Although this description has no actual impact on the work of the router. However, do not underestimate the details. Taking the time to carefully define the description of the router interface can make our maintenance work more convenient. This is like a programmer must learn to add comments to the source code, and network management should also learn to set comments for Cisco router interfaces.

You can complete the interface configuration in two steps.

Step 1: Enter the interface configuration mode. For example, you can use the int command to enter the configuration mode of a specific interface.

Step 2: Use the Description command to describe the interface. For example, description Vlan to Account. It indicates that a virtual LAN is configured on the device. This interface belongs to the virtual LAN of the finance department.

When a router fails, if we want to view the information of a router interface, it is also very convenient, just need to log on to the router, then we can use the show interface command to view the interface information we want to know. Some network administrators prefer to use the show running-config command to display interface information, which is also feasible.

In addition, in the wide area network, the Cisco router interface description command also has a special and practical function. You can use the interface description setting function to mark the loop Number of the network. Imagine a WAN network administrator responsible for dozens or even hundreds of routers. He knows how each interface of a vro leads to, how to know the loop number corresponding to each Wan interface, and other important information. If the network administrator takes some time to reflect the useful information in the interface description. When such information is needed, you do not need to search for written information. Instead, you only need to use a few simple commands to accurately find the information we need.