QoS
Quality of Service (QoS) refers to mechanisms that are used to change how a network device deals with different packets and frames. QoS can be applied at Layer 2 or Layer 3.
QoS is especially useful for prioritizing different types of network traffic. For example, we can configure a router so that voice traffic it routes is prioritized and served first, before data traffic.
QoS is useful for services such as voice and video as well as other services.
Some common QoS features and mechanism include:
QoS components
QoS concepts
- QoS - Assured Forwarding PHB values
- QoS CoS vs DSCP
- QoS Resource Reservation Protocol (RSVP)
- QoS Modular QoS CLI (MQC)
- QOS - Multilayer Switch QoS (MLS)
Traffic shaping and policing
Layer 2 QoS
- QoS - WRED traffic profile thresholds
- QoS CBWFQ traffic allocation when there are empty queues
- QoS Hardware Queues Scheduling
Links
https://networklessons.com/quality-of-service https://networklessons.com/quality-of-service/introduction-qos-quality-service
Links to this page:
- home
- Access-List (ACL)
- Cisco IOS Order of Operation
- Cisco QoS HCF shaper and bandwidth inheritance
- Cisco Quantum Flow Processor
- Cisco Switch Port Configuration for IP Phone
- EIGRP - Metric Equation Multipliers
- Hardware - Application Specific Integrated Circuit (ASIC)
- IPv4 - ToS Byte definition
- Interface - show interfaces counters explained
- MPLS - Layer 2 VPNs
- MPLS - Transport Profile
- MPLS TE - TE Tunnels
- MPLS traffic engineering
- MetroEthernet - VLAN design considerations
- Network - Simultaneous network traffic handling
- Network Design - Switch oversubscription ratios
- Network Design - Traffic Engineering
- Network Speed, Bandwidth, and Throughput
- Ping - Specify ToS
- Ping - extended feature
- QOS - Multilayer Switch QoS (MLS)
- QoS - Assured Forwarding PHB values
- QoS - Bc and Be bucket sizes
- QoS - Classification by IP
- QoS - CoS to DSCP and DSCP to CoS mapping
- QoS - Hierarchical QoS
- QoS - LLQ applied only outbound
- QoS - LLQ bandwidth configuration
- QoS - LLQ priority commands
- QoS - Nested policy maps
- QoS - Policing command syntax
- QoS - RSVP bandwidth and flow reservations
- QoS - Recommended router images for QoS labs in GNS3
- QoS - Tail Drop
- QoS - Using CBWFQ with traffic shaping
- QoS - WRED traffic profile thresholds
- QoS - applying policies
- QoS - auto qos trust
- QoS - classification
- QoS - effects of bandwidth interface command
- QoS - is WRED really a congestion avoidance mechanism
- QoS - key and nonkey fields
- QoS - marking
- QoS CBWFQ traffic allocation when there are empty queues
- QoS CBWFQ
- QoS CoS vs DSCP
- QoS Groups Example
- QoS Groups
- QoS Hardware Queue vs Software Queue
- QoS Hierarchical Queuing Framework (HQF)
- QoS Impact of Priority Queue on Class-Default Traffic
- QoS Mechanism Triggers
- QoS Network Based Application Recognition (NBAR)
- QoS Policy-Map Inbound vs Outbound
- QoS RSVP Path message
- QoS RSVP Resv message
- QoS Resource Reservation Protocol (RSVP)
- QoS Software Queues Scheduling
- QoS Testing Limitations in Network Emulators
- QoS hardware queues scheduling
- QoS how traffic shaping is achieved
- QoS max-reserved-bandwidth
- QoS specifying reserved bandwidth for a class belonging to a policy-map
- QoS tokens in shaping and policing
- QoS traffic policing
- QoS traffic shaping
- QoS using a shared policer on Nexus devices connected with vPC
- RSVP Use Cases
- SD-WAN set TLOC color
- Troubleshooting a slow network
- VLAN - VLAN IDs 0 and 4095
- VLAN Tag
- Weighted Fair Queuing (WFQ)
- Wireless - Real-time and management functions
- Wireless - Wireless LAN Controller
- ZBFW inspect Keyword
- traffic generator options