Cisco Cisco Unified Operations Manager 8.0 白皮書
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To configure SNMPv2 community strings on a Cisco Catalyst OS device, use the following global configuration
commands:
set snmp community read-only <read-community-string>
set snmp community read-write <write-community-string>
These commands help ensure that the device can be identified and that SNMP polling can be carried out.
Cisco Discovery Protocol
Cisco Discovery Protocol is a Cisco proprietary protocol that is used by devices to advertise their existence to
other devices on the network. Each device that has Cisco Discovery Protocol enabled maintains a table of its
neighbors. Operations Manager uses Cisco Discovery Protocol to perform an automated discovery of all the Cisco
devices in the network and gather information about Cisco IP Phones connected to these devices.
If Cisco Discovery Protocol is not enabled on a device, Operations Manager cannot perform an automated Cisco
Discovery Protocol-based network discovery and cannot populate phone reports with switch-related information.
Cisco Discovery Protocol is enabled by default, so you need to enable it only if it has been explicitly disabled. For
reasons of information security, it is recommended that Cisco Discovery Protocol be explicitly disabled on devices
that are on the borders of your management domain, such as edge routers.
To enable Cisco Discovery Protocol on a Cisco Catalyst device, use the following command:
set cdp enable <all | module/port>
To enable Cisco Discovery Protocol on a Cisco IOS device, use the following command:
cdp run
Tips:
●
Use the “all” parameter to enable Cisco Discovery Protocol on all ports on the device, or enter specific
module and port numbers. A range of ports can also be entered.
For example, set cdp enable 2/1-10,3/5-10.
To disable Cisco Discovery Protocol on a Cisco Catalyst device, use the command set cdp disable.
●
Do not run Cisco Discovery Protocol on links that you do not want discovered, such as Internet
connections.
Note:
Do not enable Cisco Discovery Protocol on links that do not go to Cisco devices. This protects you from
Cisco Discovery Protocol denial of service (DoS) attacks. Cisco Discovery Protocol is also relevant to Cisco IOS
devices (both routers and switches), because Cisco IOS Software is increasingly being used on new switches and
even on Cisco Catalyst 6500s.
Media Convergence Servers
This section describes the steps that should be taken to set up Cisco Media Convergence Servers for network
management.
Note:
All steps may not be required, and some steps can be expanded with more functionality.
The following section is applicable to all the Cisco IP communication components that run on Cisco MCS
platforms. Examples include Cisco Unified Communications Manager, Cisco Unity, Cisco Unity Connection, Cisco