Memory Pool--SNMP Notification Support

Last Updated: August 17, 2011

This feature adds command-line interface (CLI) commands to enable SNMP notifications for the Cisco Enhanced Memory Pool MIB (CISCO-ENHANCED-MEMPOOL-MIB).

Finding Support Information for Platforms and Cisco IOS Software Images

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Finding Feature Information

Your software release may not support all the features documented in this module. For the latest feature information and caveats, see the release notes for your platform and software release. To find information about the features documented in this module, and to see a list of the releases in which each feature is supported, see the Feature Information Table at the end of this document.

Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/go/cfn. An account on Cisco.com is not required.

Prerequisites for Memory Pool--SNMP Notification Support

Before you can compile CISCO-ENHANCED-MEMPOOL-MIB, you need to compile the following MIBs in the order listed:

  1. SNMPv2-SM (SNMP configuration MIB)
  2. SNMPv2-TC (SNMP configuration MIB)
  3. SNMPv2-CONF (SNMP configuration MIB)
  4. SNMP-FRAMEWORK-MIB (SNMP configuration MIB)
  5. CISCO-SMI (SNMP configuration MIB)
  6. ENTITY-MIB (core MIB)
  7. CISCO-ENHANCED-MEMPOOL-MIB (infrastructure MIB)

All MIBs used on Cisco devices are available through Cisco.com at http://www.cisco.com/go/mibs .

Restrictions for Memory Pool--SNMP Notification Support

Access to the MIB is restricted to a read-only level.

Information About Memory Pool--SNMP Notification Support

The CISCO-ENHANCED-MEMPOOL-MIB module describes SNMP objects that enable users to remotely monitor the memory pool statistics of all physical entities, such as line cards and route processors, in a managed device. This is particularly useful for high-end routers that may have a large number of line cards. Beginning in Cisco IOS Release 12.3(4)T, the MIB has been enhanced to provide buffer pool and buffer cache statistics.

In addition to the statistics provided by the MIB, SNMP notifications (traps or informs) can be configured to be sent when the maximum number of memory buffers changes (in other words, when a new buffer peak is reached).

How to Enable Memory Pool--SNMP Notification Support

SUMMARY STEPS

1.    enable

2.    configure terminal

3.    snmp-server enable traps memory [bufferpeak]

4.    snmp-server host {hostname | ip-address} [traps | informs] [version {1 | 2c | 3 [auth | noauth | priv]}] community-string [udp-port port] [notification-type] [vrf vrf-name]


DETAILED STEPS
  Command or Action Purpose
Step 1
enable


Example:

Router> enable

 

Enables privileged EXEC mode.

  • Enter your password if prompted.
 
Step 2
configure terminal


Example:

Router# configure terminal

 

Enters global configuration mode.

 
Step 3
snmp-server enable traps memory [bufferpeak]


Example:

Router(config)# snmp-server enable traps memory bufferpeak

 

Enables only buffer peak notifications (traps or informs) in the CISCO-ENHANCED-MEMPOOL-MIB.

 
Step 4
snmp-server host {hostname | ip-address} [traps | informs] [version {1 | 2c | 3 [auth | noauth | priv]}] community-string [udp-port port] [notification-type] [vrf vrf-name]


Example:

Router(config)# snmp-server host NMS-host1.example.com community1 memory

 

Enables buffer peak notifications to be sent to the specified host.

 

Configuration Examples for Memory Pool--SNMP Notification Support

Enabling Memory Pool--SNMP Notification Support Example

In the following example, all available memory-related SNMP notifications are enabled and configured to be sent as informs to the host myhost.cisco.com using the community string public:

Router(config)# snmp-server enable traps memory bufferpeak
 
Router(config)# snmp-server host myhost.cisco.com informs version 3 public memory

Note that as of this release, only the buffer peak memory notification type is available. Additional memory notification type keywords may be added in future releases.

Additional References

The following sections provide references related to the Memory Pool--SNMP Notification Support feature.

Related Documents

Related Topic

Document Title

Memory buffers

Buffer Tuning (Cisco Tech Note 15091)

SNMP Configuration

The chapter “ Configuring SNMP Support ” in the Cisco IOS Network Management Configuration Guide .

Standards

Standards

Title

No new or modified standards are supported by this feature, and support for existing standards has not been modified by this feature.

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MIBs

MIBs

MIBs Link

  • CISCO-ENHANCED-MEMPOOL-MIB.my (Rev 2.3)

To locate and download MIBs for selected platforms, Cisco IOS releases, and feature sets, use Cisco MIB Locator found at the following URL:

http://www.cisco.com/go/mibs

RFCs

RFCs

Title

No new or modified RFCs are supported by this feature, and support for existing RFCs has not been modified by this feature.

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Technical Assistance

Description

Link

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Access to most tools on the Cisco Support website requires a Cisco.com user ID and password.

http://www.cisco.com/techsupport

Feature Information for Memory Pool--SNMP Notification Support

The following table provides release information about the feature or features described in this module. This table lists only the software release that introduced support for a given feature in a given software release train. Unless noted otherwise, subsequent releases of that software release train also support that feature.

Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/go/cfn. An account on Cisco.com is not required.

Table 1 Feature Information for Memory Pool--SNMP Notification Support

Feature Name

Releases

Feature Information

Memory Pool--SNMP Notification Support

12.3(4)T 12.2(22)S 12.2(33)SRA 12.2(33)SXH

This feature adds command-line interface (CLI) commands to enable SNMP notifications for the Cisco Enhanced Memory Pool MIB (CISCO-ENHANCED-MEMPOOL-MIB).

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Any Internet Protocol (IP) addresses and phone numbers used in this document are not intended to be actual addresses and phone numbers. Any examples, command display output, network topology diagrams, and other figures included in the document are shown for illustrative purposes only. Any use of actual IP addresses or phone numbers in illustrative content is unintentional and coincidental.

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