Cisco Systems 78-16845-01 manual Setting Up Nonstandard Community Strings, Option Description

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Chapter 3 Building the Network

3.5.1 Prerequisites for Adding NEs

To configure the SNMP community string, you must change the community strings on the devices through the CLI.

Table 3-6describes the various options involved in configuring SNMP.

Table 3-6

SNMP Configuration Options

 

 

 

Option

 

Description

 

 

Domain Explorer,

After saving the community strings information, the CTM processes use the new community strings

Network Element

for SNMP accesses.

Properties pane, NE

Since users must configure the community strings on both the devices through CLI, and at the CTM

Authentication tab

stations through the Domain Explorer, there is a possibility of typing in mismatched community

 

 

 

 

strings. This results in the node with the mismatched community strings becoming either not

 

 

discovered or unreachable to CTM.

 

 

Note Configured community strings cannot contain underscore (_) or ampersand (@) characters.

 

 

Also, spaces are not allowed in community strings and service-level passwords.

 

 

SNMP access security

Enter the cnfsnmp command on CTM by using a secured shell to change the community strings and

 

 

passwords.

 

 

 

3.5.1.8.2 Setting Up Nonstandard Community Strings

The standard community strings are defined as default community strings. If you change the standard (default) community strings to a different value, the standard community strings become nonstandard.

To set up nonstandard community strings or to change a service-level password, use the NE

Authentication tab in the Domain Explorer.

Note This method affects only CTM. You must make sure that community strings and passwords within CTM match those on the switches.

3.5.1.8.3 Changing Community Strings Using the Domain Explorer

To change the SNMP get and set community strings for selected nodes:

Step 1 In the Domain Explorer Hierarchy pane, select the node.

Step 2 In the NE Authentication tab, you can change the SNMP Community String to change the SNMP get community string, or change the SNMP Set Only Community String.

Step 3 Click Save.

3.5.1.8.4 Changing Community Strings Using the CLI

To change the SNMP get community strings for selected nodes:

Step 1 Open a terminal window and SSH or Telnet to the switch.

Step 2 Enter the cnfsnmp command to change the SNMP get community string for the selected nodes as follows:

xxyyzz% cnfsnmp community [rorw]

Cisco Transport Manager Release 6.0 User Guide

 

78-16845-01

3-15

 

 

 

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Contents Overview Building the NetworkField Description How Do I Build Groups?Adding Groups Copying GroupsMoving Groups Deleting GroupsDeleting a Single Group How Do I Build Network Partitions? Adding Network PartitionsDeleting Multiple Groups Deleting Network Partitions Modifying Network PartitionsAdding Subnetworks How Do I Build Subnetworks?How Do I Build NEs? Moving SubnetworksDeleting Subnetworks Prerequisites for Adding NEs Prerequisites for Adding ONS 15216 EDFA2 or EDFA3 NEsPrerequisites for Adding ONS 15302 and ONS 15305 NEs Building the Network Prerequisites for Adding NEs Hostnames and IP Addresses Required An Efficient Network Topology Setup Prerequisites for Adding Cisco CRS-1 and XR 12000 NEs Prerequisites for Adding ONS 1580x NEsPrerequisites for Adding Cisco MGX Voice Gateway Devices Prerequisites for Adding Cisco Catalyst 6509 NEsOption Description Setting Up Nonstandard Community StringsChanging the Service-Level Passwords Using the CLI Adding a Single NE Adding NEsNE ID NE ID- Read-only Adding Multiple NEsField Descriptions for the Add New NE Wizard NE Properties Panel Not selectable if Automatic subnetwork Grouping is enabled Moving an NE from One Group to Another Copying an NE from One Group to AnotherAutomatically Grouping NEs in Subnetworks Moving an NE from One Network Partition to AnotherDeleting a Single NE Deleting NEsDeleting Multiple NEs Removing a Deleted NE How Do I Build Links? Restoring a Deleted NESearching for an NE Overview of Supported Links ONS 15454 Sonet Layer NE Model NE Card PhysicalOPT-BST ONS 15600 Sonet File Viewing the Link Table10describes the fields in Link table Field Description Filtering Links in the Network Map Filtering the Link TableCreating Links Building the Network Creating Links 12 Field Descriptions for the Create Link Wizard Field Descriptions for the Create Link Wizard Modifying Links FieldLink Type Link Validity Link Color 14 Field Descriptions for the Modify Link Wizard Viewing Link Utilization Deleting LinksColumn Description Filtering the Link Utilization TableHow Do I Use Network Maps? Customizing a Network MapPayload Type Description Click UI Properties Viewing a Node in the Network Map Adjusting the Zoom Level or Pan PositionModifying a Node Icon or a Map Background Image Modifying a Node IconModifying a Map Background Saving Changes to the Network Map Discovering CTC-Based NEs Discovering ONS 155xx NEsDiscovery Information Table Time stamp Rediscovering ONS 155xx, CRS-1, and XR 12000 NEsResetting the Resync Interval How Do I Discover the Network for MGX Voice Gateway Devices? Message Quality Description Discovering NEsSetting Up External or Line Timing for CTC-Based Sonet NEs Building the Network Bits 1 OUT Setting Up Internal Timing for CTC-Based Sonet NEsOOS Setting Up External or Line Timing for CTC-Based SDH NEs Unframed , FAS , FAS + CAS Bits 1 OUT Setting Up Internal Timing for CTC-Based SDH NEs Viewing Clocking Sources Configuring Global Clocking Displaying the List of Available Clock SourcesDisplaying the List of Manual Clock Sources How Do I Test Connectivity for Optical and Routing Devices? Creating a Manual Clock SourceMethod Description Testing NE Connectivity How Do I Test Connectivity for MGX Voice Gateway Devices?Pinging an NE Cisco Transport Manager Release 6.0 User Guide 78-16845-01
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