3com 5500-ei pwr Instrução De Instalação

 

1-2 

z 

Set the permission for a community to access an MIB object to be read-only or read-write. 

Communities with read-only permissions can only query the switch information, while those with 

read-write permission can configure the switch as well. 

z 

Set the basic ACL specified by the community name.  

An SNMP packet carries management variables with it. Management variable is used to describe the 

management objects of a switch. To uniquely identify the management objects of the switch, SNMP 

adopts a hierarchical naming scheme to organize the managed objects. It is like a tree, with each tree 

node representing a managed object, as shown in 

. Each node in this tree can be uniquely 

identified by a path starting from the root. 

Figure 1-1 Architecture of the MIB tree 

1

1

2

1

2

1

2

5

6

B

A

 

 

MIB describes the hierarchical architecture of the tree and it is the set defined by the standard variables 

of the monitored network devices. In the above figure, the managed object B can be uniquely identified 

by a string of numbers {1.2.1.1}. The number string is the object identifier (OID) of the managed object. 

SNMPv3 configuration is quite different from that of SNMPv1 and SNMPv2c. Therefore, the 

configuration of basic SNMP functions is described by SNMP versions, as listed in the following two 

tables. 

Switches now support configuring SNMPv3 users by using the Advanced Encryption Standard (AES), 

which is the new encryption standard in place of Data Encryption Standard (DES). 

Follow these steps to configure basic SNMP functions (SNMPv1 and SNMPv2c): 

Enter system view 

— 

Enable SNMP agent 

Optional 

Disabled by default. 

You can enable SNMP 
agent by executing this 
command or any of the 
commands used to 
configure SNMP agent.