Table of Contents (Start)
- Topics
- Introducing SevOne
- Login
- Startup Wizard
- Dashboard
- Global Search - Advanced Search
- Report Manager
- Report Attachment Wizard
- Report Properties
- Report Interactions
- Instant Graphs
- TopN Reports
- Alerts
- Alert Archives
- Alert Summary
- Instant Status
- Status Map Manager
- Edit Maps
- View Maps
- FlowFalcon Reports
- NBAR Reports
- Logged Traps
- Unknown Traps
- Trap Event Editor
- Trap Destinations
- Trap Destination Associations
- Policy Browser
- Create and Edit Policies
- Threshold Browser
- Create and Edit Thresholds
- Probe Manager
- Discovery Manager
- Device Manager
- New Device
- Edit Device
- Object Manager
- High Frequency Poller
- Device Summary
- Device Mover
- Device Groups
- Object Groups
- Object Summary
- Object Rules
- VMware Browser
- Calculation Plugin
- Cisco ACI Plugin
- Database Manager
- Deferred Data Plugin
- DNS Plugin
- HTTP Plugin
- ICMP Plugin
- IP SLA Plugin
- JMX Plugin
- NAM
- NBAR Plugin
- Portshaker Plugin
- Process Plugin
- Proxy Ping Plugin
- SNMP Plugin
- VMware Plugin
- Web Status Plugin
- WMI Plugin
- xStats Plugin
- Indicator Type Maps
- Device Types
- Object Types
- Object Subtype Manager
- Calculation Editor
- xStats Source Manager
- User Role Manager
- User Manager
- Session Manager
- Authentication Settings
- Preferences
- Cluster Manager
- Maintenance Windows
- Processes and Logs
- Metadata Schema
- Baseline Manager
- FlowFalcon View Editor
- Map Flow Objects
- FlowFalcon Views
- Flow Rules
- Flow Interface Manager
- MPLS Flow Mapping
- Network Segment Manager
- Flow Protocols and Services
- xStats Log Viewer
- SNMP Walk
- SNMP OID Browser
- MIB Manager
- Work Hours
- Administrative Messages
- Enable Flow Technologies
- Enable JMX
- Enable NBAR
- Enable SNMP
- Enable Web Status
- Enable WMI
- IP SLA
- SNMP
- SevOne Data Bus
- Quality of Service
- Perl Regular Expressions
- Trap Revisions
- Integrate SevOne NMS With Other Applications
- Email Tips and Tricks
- SevOne NMS PHP Statistics
- SevOne NMS Usage Statistics
- Glossary and Concepts
- Map Flow Devices
- Trap v3 Receiver
- Guides
- SevOne Implementation Guide
- SevOne Best Practices Guide - Cluster, Peer, and HSA
- SevOne Installation Guide - Virtual Appliance
- SevOne NMS Installation Guide
- SevOne SAML Single Sign-On Setup Guide
- Access Control Quick Start Guide - SevOne NMS 5.7
- Data Miner Quick Start Guide - SevOne NMS 5.7
- Flow Quick Start Guide - SevOne NMS 5.7
- Group Aggregated Indicators Quick Start Guide - SevOne NMS 5.7
- IP SLA Quick Start Guide - SevOne NMS 5.7
- JMX Quick Start Guide - SevOne NMS 5.7
- LDAP Quick Start Guide - SevOne NMS 5.7
- Metadata Quick Start Guide - SevOne NMS 5.7
- RESTful API Quick Start Guide - SevOne NMS 5.7
- Self-monitoring Quick Start Guide - SevOne NMS 5.7
- SevOne NMS Admin Notifications Quick Start Guide - SevOne NMS 5.7
- SNMP Quick Start Guide - SevOne NMS 5.7
- Synthetic Indicator Types Quick Start Guide - SevOne NMS 5.7
- Topology Quick Start Guide - SevOne NMS 5.7
- VMware Quick Start Guide - SevOne NMS 5.7
- Web Status Quick Start Guide - SevOne NMS 5.7
- WMI Quick Start Guide - SevOne NMS 5.7
- xStats Quick Start Guide - SevOne NMS 5.7
Quality of Service
The SNMP plugin discovers the Quality of Service (QoS) policies, classes, and match statements on any Cisco device on which you enable Class Based QoS. QoS polls all ClassMap, PolicyMap, and Match Statements to collect statistics that include summary counts/rates by traffic class before and after any configured QoS policies are enforced. Detailed feature specific statistics are available for select PolicyMap features.
QoS Objects
-
Match Statement: Displays the specific match criteria to identify packets for classification purposes.
-
ClassMap: Displays the traffic class you define that contains one or many match statements that enable you to classify packets into different categories.
-
PolicyMap: Displays the policy you define to associate each QoS action to a traffic class (ClassMap).
-
Service Policy: Service policy is a policymap that is attached to a logical interface. Because a policymap can also be a part of the hierarchical structure (inside a classmap), the SNMP plugin considers a policymap that is directly attached to a logical interface to be a service policy.
A logical interface in this context is one of the following: a main-interface, a sub-interface, a Frame Relay DLCI, an ATM virtual circuit, or the control-plane on the router.
The SNMP plugin only monitors service policies, since service policies influence the flow of traffic through interfaces on the router.
When the SNMP plugin discovers QoS on an interface, the names of the objects appear as follows:
"Interface""In/Out""Policy Name""Class""Type"
Example: A QoS object might be:
Et3/0 In - MyQoS - MyHttp Class
Each type of QoS has its own indicators and uses, but the main type is the class. Class objects can indicate how many bytes went into the class, how many bytes came out, how many bytes were dropped, and how many bytes were dropped due to RAM limits.
The Policy Browser enables you to define a policy that triggers an alert when the number of dropped bytes exceeds a certain number and the Report Manager enables you to define a report for the TopN reports that includes the most-dropping QoS policies.