Virtual Switching System (VSS) Support

VSS devices are support from the 10.0 release. Virtual Switching System (VSS) is a network system virtualization technology, it pools two Cisco Catalyst Switches into one virtual switch. VSS helps in increasing operational efficiency by boosting nonstop communications. VSS simplifies the network by reducing the number of network elements and hiding the complexity of managing redundant switches and links.
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Overview
VSS devices are support from the 10.0 release. Virtual Switching System (VSS) is a network system virtualization technology, it pools two Cisco Catalyst Switches into one virtual switch. VSS helps in increasing operational efficiency by boosting nonstop communications. VSS simplifies the network by reducing the number of network elements and hiding the complexity of managing redundant switches and links.
One virtual switch member chassis act as an Active virtual switch, while the other member is in Standby state. Even though one member is in Standby mode both chassis act as active and forward the traffic. When one of the virtual switch members fails, there is no convergence of protocols in the network and no disruption occurs to the traffic flowing through the VSS.
DX NetOps Spectrum
 supports the following Cisco VSS devices:
Device Type Name
System Object ID
Cat 65xx Virtual Switch
1.3.6.1.4.1.9.1.896
Cisco C68xx Virtual Switch
1.3.6.1.4.1.9.1.1934
 Contact CA Support for information on other Cisco Catalyst VSS device support.
Monitor VSS devices
Once the VSS device is modeled in 
DX NetOps Spectrum
, Chassis container models are created for the VSS device in the Cisco folder under the Chassis Manager. 
DX NetOps Spectrum
 detects the role of Chassis container models as Active and Standby. The Active Chassis container model  is shown in solid green (image2015-4-24 17:6:23.png) color and the Standby chassis container model is shown in light green (image2015-4-24 17:6:32.png) color. By expanding the chassis container models you can see the associated modules. 
Use the following navigation to view the virtual switches under the Chassis Manager.
OC Navigation -> Chassis manager -> Cisco -> <VSS> ->Chassis containers (Active and Standby)
The Interfaces tab in the Component Detail pane shows the Chassis container models, associated modules and interfaces. 
After 
DX NetOps Spectrum
 upgrade, the VSS Chassis container models of the Cat 65xx Virtual Switch (System Object ID: 1.3.6.1.4.1.9.1.896), which is modeled in the earlier release are not displayed. To view these VSS Chassis container models you must model the Cat 65xx Virtual Switch again after upgrade to the current release.
Cisco Virtual Switch Information view
When you select the VSS device from Explorer tab, the Information tab under the Contents pane shows the Cisco Virtual Switch Information.
You can expand the Cisco Virtual Switch Information to see the following sub views:
  • Chassis Information
  • VSL Port Statistics
  • VSL Statistics
  • VSL Connection Information
  • Core Switch Configuration
You can expand each sub view for detailed information.
VSS Chassis Information
This view is shown for VSS Chassis containers models. The Information tab under the Component Details pane shows the VSS Chassis Information along with its General Information and Asset Information.
You can expand the VSS Chassis Information to the following details:
  • Chassis Switch ID
  • Chassis Uptime
  • Chassis Role
  • Chassis CoreSwitchPriority
  • Chassis CoreSwitchPreempt
Locater Search for VSS Models
You can find VSS devices using the 
Locater
 search from the Navigation pane. Under the Locater tab the Chassis folder contains the sub folder VSS. You can find VSS models using the following two options:
 
All Chassis Containers
 
Use this option to find the Chassis container models of VSS devices.
 
All VSS Devices
 
Use this option find all VSS Devices.
VSS Alarms and Correlation
When monitoring your VSS environment, VSS models display an alarm state for the following conditions:
 
VSS CONFIGURATION PROBLEM
   
It is a critical alarm. Spectrum raises this alarm when it detects a problem in VSS setup. The alarm is cleared when the Spectrum detects the setup is back to normal.
 
CHASSIS CONTACT LOST
   
It is a critical alarm. Spectrum raises this alarm when one of the VSS Chassis container model is down. The alarm is cleared when the VSS Chassis is up.
 
Correlation:
 
The CHASSIS CONTACT LOST alarm is correlated to VSS CONFIGURATION PROBLEM alarm.
 
VSS DUAL ACTIVE DETECTED
   
It is a critical alarm. Spectrum raises this alarm when a dual active detected trap “cvsDualActiveDetectionNotif” is sent by a VSS device. The alarm is automatically cleared when the VSS setup is back to normal.
 
Correlation:
 
The
 
VSS DUAL ACTIVE DETECTED alarm is correlated to CHASSIS DOWN alarm.
The CHASSIS CONTACT LOST Critical Alarm and VSS CONFIGURATION PROBLEM critical Alarm is correlated to VSS DUAL ACTIVE DETECTED Critical Alarm.
 
VSL CONNECTION DOWN
   
It is a minor alarm. Spectrum raises this alarm when ‘cvsVSLConnectionChangeNotif’ trap is received with ‘cvsVSLConnectOperStatus’ as down. The alarm is cleared when the ‘cvsVSLConnectionChangeNotif’ trap is received with ‘cvsVSLConnectOperStatus’ as up.
 
Event id: 0x210df5
   
This event is generated when the VSS Chassis container model changes its role.