- play_arrow Weighted Random Early Detection (WRED) and Explicit Congestion Notification (ECN)
- play_arrow WRED and Drop Profiles
- play_arrow Explicit Congestion Notification (ECN)
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- play_arrow CoS Queue Schedulers, Traffic Control Profiles, and Hierarchical Port Scheduling (ETS)
- play_arrow Queue Schedulers and Scheduling Priority
- Understanding Default CoS Scheduling and Classification
- Understanding CoS Scheduling Behavior and Configuration Considerations
- Understanding CoS Output Queue Schedulers
- Defining CoS Queue Schedulers
- Example: Configuring Queue Schedulers
- Defining CoS Queue Scheduling Priority
- Example: Configuring Queue Scheduling Priority
- Monitoring CoS Scheduler Maps
- play_arrow Port Scheduling and Shaping
- play_arrow Troubleshooting Egress Bandwidth Issues
- play_arrow Traffic Control Profiles and Priority Group Scheduling
- Understanding CoS Traffic Control Profiles
- Understanding CoS Priority Group Scheduling
- Understanding CoS Virtual Output Queues (VOQs)
- Defining CoS Traffic Control Profiles (Priority Group Scheduling)
- Example: Configuring Traffic Control Profiles (Priority Group Scheduling)
- Understanding CoS Priority Group and Queue Guaranteed Minimum Bandwidth
- Example: Configuring Minimum Guaranteed Output Bandwidth
- Understanding CoS Priority Group Shaping and Queue Shaping (Maximum Bandwidth)
- Example: Configuring Maximum Output Bandwidth
- play_arrow Hierarchical Port Scheduling (ETS)
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- play_arrow Data Center Bridging and Lossless FCoE
- play_arrow Data Center Bridging
- Understanding DCB Features and Requirements
- Understanding DCBX
- Configuring the DCBX Mode
- Configuring DCBX Autonegotiation
- Understanding DCBX Application Protocol TLV Exchange
- Defining an Application for DCBX Application Protocol TLV Exchange
- Configuring an Application Map for DCBX Application Protocol TLV Exchange
- Applying an Application Map to an Interface for DCBX Application Protocol TLV Exchange
- Example: Configuring DCBX Application Protocol TLV Exchange
- play_arrow Lossless FCoE
- Example: Configuring CoS PFC for FCoE Traffic
- Example: Configuring CoS for FCoE Transit Switch Traffic Across an MC-LAG
- Example: Configuring CoS Using ELS for FCoE Transit Switch Traffic Across an MC-LAG
- Example: Configuring Lossless FCoE Traffic When the Converged Ethernet Network Does Not Use IEEE 802.1p Priority 3 for FCoE Traffic (FCoE Transit Switch)
- Example: Configuring Two or More Lossless FCoE Priorities on the Same FCoE Transit Switch Interface
- Example: Configuring Two or More Lossless FCoE IEEE 802.1p Priorities on Different FCoE Transit Switch Interfaces
- Example: Configuring Lossless IEEE 802.1p Priorities on Ethernet Interfaces for Multiple Applications (FCoE and iSCSI)
- Troubleshooting Dropped FCoE Traffic
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- play_arrow CoS Buffers and the Shared Buffer Pool
- play_arrow CoS Buffers Overview
- play_arrow Shared Buffer Pool Examples
- Example: Recommended Configuration of the Shared Buffer Pool for Networks with Mostly Best-Effort Unicast Traffic
- Example: Recommended Configuration of the Shared Buffer Pool for Networks with Mostly Best-Effort Traffic on Links with Ethernet PAUSE Enabled
- Example: Recommended Configuration of the Shared Buffer Pool for Networks with Mostly Multicast Traffic
- Example: Recommended Configuration of the Shared Buffer Pool for Networks with Mostly Lossless Traffic
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- play_arrow CoS on EVPN VXLANs
- play_arrow Configuration Statements and Operational Commands
Changing the Host Outbound Traffic Default Queue Mapping
If you do not want to use the default mapping of host Routing Engine and CPU outbound traffic to queues, you can change the default output queue. You can also change the default DSCP bits used in the type of service (ToS) field of packets generated by the Routing Engine.
Configuring a queue for host outbound traffic maps all traffic that the host generates to one forwarding class (queue). The configuration is global and applies to all host-generated traffic on the switch. Configuring a forwarding class for host outbound traffic does not affect transit or incoming traffic.
Fibre Channel over Ethernet (FCoE) Initialization Protocol
(FIP) packets generated by the CPU are always transmitted on the fcoe queue (queue 3), even if you configure a queue for host
outbound traffic. This helps to ensure lossless behavior for FCoE
traffic. QFabric systems classify FIP control packets into the same
traffic class (fcoe) across the Interconnect device (fabric)
and the egress Node device.
This does not apply to OCX Series switches, which do not support FCoE.
To change the host outbound traffic egress queue by including
the host-outbound-traffic statement at the [edit class-of-service] hierarchy level:
[edit class-of-service] host-outbound-traffic { forwarding-class class-name; dscp-code-point code-point; }
For example, to map host outbound traffic to queue 7 (the network control forwarding class) and set the DSCP code point value to 101010:
[edit class-of-service]
host-outbound-traffic {
forwarding-class network-control;
dscp-code-point 101010
}
