[HCIA continuous update] network management and operation and maintenance

Network management and operation and maintenance

Basic functions of network management

Network management mode

SNMP Information interaction of

1、NMS There are two types of information interaction with managed devices

• NMS adopt SNMP The protocol sends modification to the device v Configuration information request or query configuration information request . The agent process running on the managed device is based on NMS Respond to the request information of
• Managed devices can take the initiative to NMS Report the alarm information so that the network administrator can find it in time

2、 Managed object ： Each device may contain multiple managed objects , The managed object can be some hardware in the device , It can also be in hardware 、 Software （ Such as routing protocol ） Set of parameters configured on .

3、SNMP Pass the rules MIB To describe a set of objects that can manage entities

MIB

common MIB node

Nodes for querying or modifying

Node for alarm notification

SNMP Basic configuration

1、 Can make SNMP Agent function

snmp-agent

2、 To configure SNMP Version of

snmp-agent sys-info version [v1 | v2c | v3]

3、 Create or update MIB View information

snmp-agant mib-view view-name {exclude | include} subtree-name [mask mask]

4、 Add a new SNMP Group , Map the users of this group to SNMP View

snmp-agant group v3 group-name {authentication | noauth |privacy} [read-view view-name| write-view view-name | notify-view view-name

5、 For one SNMP Add a new user to the group

snmp-agent usm-user v3 user-name group group-name

6、 To configure SNMPv3 User authentication password

snmp-agent usm-user v3 user-name authenticationomode {md5 | sha | sha2-256}

7、 To configure SNMPv3 The user's encrypted password

snmp-agant usm-user v3 user-name privacy-mode {aes128 | des56}

8、 Configure the device to send Trap Message parameter information

snmp-agant target-host trap-paramsname paramsname v3 securityname securityname { authentication | noauthnopriv |privacy}

9、 To configure Trap Destination host of the message

snmp-agant target-host trap-hostname hostname address ipv4-address trap-paramsname paramsname

10、 Turn on all alarm switches of the equipment

snmp-agant trap enable

11、 Configure the source port for sending alarms

snmp-agent trap source intereface-type interface-number

NETCONF brief introduction

YANG Language Overview