Troubleshooting Router Graphs

In some cases, the router graphs (and their corresponding monitors) may experience stagnant data collection. Below are the cause and troubleshooting methods to rectify the same.

Widgets not displaying data under the 'Router Graphs' tab

Cause: Every graph will need a particular set of performance monitors to be associated with the device. The data collected by these monitors are collectively displayed in the corresponding graphs. If the respective monitors are not associated or if there is no data collection in that particular monitor, the graphs will not display any data.

Solution:

1. In OpManager, router graphs are specific only to Cisco devices. Below is a list of graphs and the corresponding monitors they require in order to display the necessary data. Check if these performance monitors are properly associated.

Graph name	Mandatory Performance monitors
Buffer Hits	Medium Buffer Hits
	Big Buffer Hits
	Total Large Buffer Hits
	Total Huge Buffer Hits
Buffer Misses	Small Buffer Misses
	Medium Buffer Misses
	Big Buffer Misses
	Total Large Buffer Misses
	Total Huge Buffer Misses
Buffer Failures	Buffer Create Failures
Cisco Memory Utilization	Cisco Memory Utilization
Router CPU utilization	CPU Usage (5 mins avg)



2. Check if data collection is properly conducted at all the associated monitors. If not, query the device and check if it responds to the OIDs listed below.

Graph	OID
Buffer Hits	.1.3.6.1.4.1.9.2.1.18.0
Medium Buffer Hits	.1.3.6.1.4.1.9.2.1.26.0
Big Buffer Hits	.1.3.6.1.4.1.9.2.1.34.0
Large Buffer Hits	.1.3.6.1.4.1.9.2.1.42.0
Huge Buffer Hits	.1.3.6.1.4.1.9.2.1.66.0
Small Buffer Misses	.1.3.6.1.4.1.9.2.1.19.0
Medium Buffer Misses	.1.3.6.1.4.1.9.2.1.27.0
Big Buffer Misses	.1.3.6.1.4.1.9.2.1.35.0
Large Buffer Misses	.1.3.6.1.4.1.9.2.1.43.0
Huge Buffer Misses	.1.3.6.1.4.1.9.2.1.67.0
Buffer Failures	.1.3.6.1.4.1.9.2.1.46.0
Cpu Usage % (RouterCPUUtilization)	.1.3.6.1.4.1.9.2.1.58.0
Memory Utilization % (CiscoMemoryUtilization)	(.1.3.6.1.4.1.9.9.48.1.1.1.5.1*100)/(.1.3.6.1.4.1.9.9.48.1.1.1.5.1+.1.3.6.1.4.1.9.9.48.1.1.1.6.1)