Cisco Crosswork Network Controller 7.2.x Administration Guide

Global collector parameters

Updated: August 14, 2026

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Outlines the global collector parameters that control how Embedded Collectors operate and integrate with devices and data destinations, including external connectivity, device package support, and default thresholds, ports, timeouts, and retry limits.

Global settings define how the collectors operates and integrates with other network components such as devices, data destination. These configurations offer a centralized way to manage key operational parameters consistently across the Embedded Collectors.

The primary functions of global configuration options include:

Controlling how Embedded Collectors connect to external systems. Refer to Data destinations in Embedded Collectors.
Extending data collection capabilities to Cisco applications and third-party devices using device packages. Refer to Device packages.
Setting default thresholds, ports, timeouts, and retry limits. Refer to Configure the global parameters.

Configure the global parameters

Guide users to configure global parameters for collectors in the network management system.

The Global Parameters window enables configuration of foundational operational settings for collectors, such as specifying data collection ports. Update these settings if your network uses non-standard ports to maintain proper collector integration and operation.

Before you begin

Ensure port values you intend to update are valid and do not conflict with existing assignments.
Confirm port numbers match those configured on your devices
Ensure port values do not conflict with those on Embedded Collectors.
Changes to Syslog and SNMP ports will apply to Embedded Collector instances running on Amazon EKS.

Procedure

	1.	Navigate to Administration > Data Collector(s) Global Settings > Global Parameters. Figure 1. Global parameters
	2.	Update the parameter values as per your network requirement.
	3.	If you are updating ports, select Yes in the Global Parameters window that appears to confirm that collectors can be restarted. Note Updating ports causes the collectors to restart and pause any collection jobs that are running.
	4.	Click Save.

A confirmation message indicates whether the update succeeded or failed for Embedded Collectors.

What to do next

If any Embedded Collectors cannot be updated, an error window appears. During recovery, these collectors will automatically retry parameter updates; some may restart as part of this recovery process.

Note

One reason global parameters might fail to update on an Embedded Collector is that the OAM channel is down. After the OAM channel is reestablished, Embedded Collectors attempt to send the parameters to the unsynchronized collectors, updating the values after comparing them with the existing ones.

Global parameters and descriptions

This section lists the global parameters and descriptions.

Note

The port number you modify must match the numbers configured on your devices.

Table 1. Global parameters and descriptions
Parameter Name	Description	Default value for single VM deployment
Number of CLI sessions	Maximum number of CLI sessions that can be set up between an embedded data collector and devices. Change this value to increase or decrease the number of concurrent sessions allowed on the device, depending on requirements.	3 Accepted range is 1-50
SSH Session Timeout	The session timeout (in seconds) is the duration for which a CLI connection can remain idle in the CLI and SNMP collectors.	120 Accepted range is 5-900 seconds
SNMP Trap Port	Modify this value according to the deployment environment and configuration requirements.	31062 Accepted range is 30160–31560
Syslog UDP Port	Modify this value according to the deployment environment and configuration requirements.	30514 Accepted range is 30160–31560
Syslog TCP Port	-	30898 Accepted range is 30160–31560
Syslog TLS Port	-	30614 Accepted range of ports is 30160–31560
Re-Sync SNMPv3 Details	USM details change whenever a device is rebooted or re-imaged. SNMPV3 collections stop working whenever there is a change in any of the USM details.	Disable By default, this option is disabled for security reasons. Automatic synchronization of updated USM (User Session Manager) information is not permitted to prevent unintended data collection with an incorrect source. When enabled, the system automatically updates USM information after changes, such as hardware updates or device reboots. This ensures that data collection continues without user intervention. If the option remains disabled, manual intervention is required to re-establish USM communication. This process can be performed by detaching and reattaching the device to the embedded collectors or toggling the device's admin state (Down then Up).

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