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www.dell.com | support.dell.com Defaults none Command Modes DCB INPUT POLICY Command History Usage Information Version 8.3.16.1 Introduced on MXL 10/40GbE Switch IO Module you can enable any number of 802.1p priorities for PFC. Queues to which PFC priority traffic is mapped are lossless by default. Traffic may be interrupted due to an interface flap (going down and coming up) when you reconfigure the lossless queues for no-drop priorities in a PFC input policy and re-apply the policy to an interface. The maximum number of lossless queues supported on the switch is two. The configured priority traffic must be supported by a PFC peer (as detected by DCBX) for PFC to be applied. Related Commands dcb-input Create a DCB input policy. priority-group Create an ETS priority group to use with an ETS output policy. Syntax priority-group group-name To remove the priority group, use the no priority-group command. Parameters group-name Enter the name of the ETS priority group. Maximum: 32 characters. Defaults none Command Modes CONFIGURATION Command History Version 8.3.16.1 Introduced on MXL 10/40GbE Switch IO Module Usage Information A priority group consists of 802.1p priority values that are grouped together for similar bandwidth allocation and scheduling, and that share the same latency and loss requirements. All 802.1p priorities mapped to the same queue should be in the same priority group. All 802.1p priorities should be configured in priority groups associated with an ETS output policy. You can assign each dot1p priority to only one priority group. The maximum number of priority groups supported in ETS output policies on an interface is equal to the number of data queues (4) on the port. The 802.1p priorities in a priority group can map to multiple queues. If you configure more than one priority queue as strict priority or more than one priority group as strict priority, the higher numbered priority queue is given preference when scheduling data traffic 168 | Data Center Bridging

Section	Page
About this Guide	9
Objectives	9
Audience	9
Conventions	9
Information Symbols	10
Related Documents	10
CLI Basics	11
Accessing the Command Line	11
Multiple Configuration Users	12
Navigating the Command Line Interface	12
Obtaining Help	13
Using the Keyword no	15
Filtering show Commands	15
Displaying All Output	16
Filtering Command Output Multiple Times	16
Command Modes	16
EXEC Mode	16
EXEC Privilege Mode	17
CONFIGURATION Mode	17
INTERFACE Mode	17
LINE Mode	18
MAC ACCESS LIST Mode	18
IP ACCESS LIST Mode	18
ROUTE-MAP Mode	18
PREFIX-LIST Mode	19
SPANNING TREE Mode	19
Per-VLAN SPANNING TREE Plus Mode	19
RAPID SPANNING TREE Mode	19
MULTIPLE SPANNING TREE Mode	20
PROTOCOL GVRP Mode	20
ROUTER OSPF Mode	20
ROUTER RIP Mode	20
File Management	21
Overview	21
Basic File Management Commands	21
Control and Monitoring	37
Commands	37
Important Points to Remember	67
u-Boot	81
Overview	81
Commands	81
Access Control Lists (ACL)	91
Overview	91
Commands Common to all ACL Types	91
Common IP ACL Commands	94
Standard IP ACL Commands	98
Extended IP ACL Commands	102
Common MAC Access List Commands	117
Standard MAC ACL Commands	120
Extended MAC ACL Commands	123
IP Prefix List Commands	127
Route Map Commands	132
Bare Metal Provisioning	143
Overview	143
Commands	143
Content Addressable Memory (CAM)	147
Overview	147
CAM Profile Commands	147
Important Points to Remember	147
Data Center Bridging	153
Overview	153
DCB Command	153
PFC Commands	153
ETS Commands	154
DCBX Commands	154
Dynamic Host Configuration Protocol (DHCP)	187
Overview	187
Commands to Configure the System to be a DHCP Server	187
Commands to Configure the System to be a DHCP Client	194
Other Commands supported by DHCP Client	195
Commands to Configure Secure DHCP	198
FIP Snooping	205
Overview	205
GARP VLAN Registration (GVRP)	217
Commands	217
Important Points to Remember	218
Internet Group Management Protocol (IGMP)	227
IGMP Snooping Commands	227
Important Points to Remember for IGMP Snooping	227
Important Points to Remember for IGMP Querier	228
Interfaces	235
Overview	235
Basic Interface Commands	235
Port Channel Commands	277
Time Domain Reflectometer (TDR)	284
Important Points to Remember	284
UDP Broadcast	286
Important Points to Remember	286
IPv4 Routing	289
Commands	289
iSCSI Optimization	323
Overview	323
Link Aggregation Control Protocol (LACP)	331
Overview	331
Commands	331
Layer 2	337
Overview	337
MAC Addressing Commands	337
Virtual LAN (VLAN) Commands	347
Link Layer Discovery Protocol (LLDP)	355
Overview	355
Commands	355
LLDP-MED Commands	363
Multiple Spanning Tree Protocol (MSTP)	371
Overview	371
Commands	371
Open Shortest Path First (OSPFv2)	385
Overview	385
OSPFv2 Commands	385
Port Monitoring	433
Overview	433
Commands	433
Important Points to Remember	433
Private VLAN (PVLAN)	439
Commands	439
Private VLAN Concepts	440
Per-VLAN Spanning Tree Plus (PVST+)	449
Overview	449
Commands	449
Quality of Service (QoS)	461
Overview	461
Global Configuration Commands	461
Per-Port QoS Commands	462
Policy-Based QoS Commands	467
Routing Information Protocol (RIP)	491
Overview	491
Commands	491
Remote Monitoring (RMON)	507
Overview	507
Commands	507
Rapid Spanning Tree Protocol (RSTP)	519
Overview	519
Commands	519
Security	531
Commands	531
AAA Accounting Commands	531
Authorization and Privilege Commands	534
Authentication and Password Commands	537
RADIUS Commands	548
TACACS+ Commands	552
SSH Server and SCP Commands	555
Secure DHCP Commands	566
sFlow	571
Overview	571
Important Points to Remember	571
Commands	572
Simple Network Management Protocol (SNMP) and Syslog	579
Overview	579
SNMP Commands	579
Important Points to Remember	580
Syslog Commands	594
Storm Control	605
Overview	605
Commands	605
Important Points to Remember	605
Stacking Commands	611
Overview	611
Commands	611
Spanning Tree Protocol (STP)	621
Overview	621
System Time and Date	631
Overview	631
Commands	631
Uplink Failure Detection (UFD)	645
Overview	645
Commands	645
VLAN Stacking	655
Overview	655
Important Points to Remember	655
Virtual Router Redundancy Protocol (VRRP)	663
IPv4 VRRP Commands	663
Debugging and Diagnostics	675
Offline Diagnostic Commands	675
Important Points to Remember	675
Buffer Tuning Commands	677
Hardware Commands	682
Internet Control Message Protocol (ICMP) Message Types	695
SNMP Traps	697
Index	701

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168

Data Center Bridging

www.dell.com | support.dell.com

Defaults

none

Command Modes

DCB INPUT POLICY

Command

History

Usage

Information

you can enable any number of 802.1p priorities for PFC. Queues to which PFC priority traffic is

mapped are lossless by default. Traffic may be interrupted due to an interface flap (going down and

coming up) when you reconfigure the lossless queues for no-drop priorities in a PFC input policy and

re-apply the policy to an interface.

The maximum number of lossless queues supported on the switch is two.

The configured priority traffic must be supported by a PFC peer (as detected by DCBX) for PFC to be

applied.

Commands

priority-group

Create an ETS priority group to use with an ETS output policy.

Syntax

priority-group

group-name

To remove the priority group, use the

no priority-group

command.

Parameters

Defaults

none

Command Modes

CONFIGURATION

Command

History

Usage

Information

A priority group consists of 802.1p priority values that are grouped together for similar bandwidth

allocation and scheduling, and that share the same latency and loss requirements. All 802.1p priorities

mapped to the same queue should be in the same priority group.

All 802.1p priorities should be configured in priority groups associated with an ETS output policy. You

can assign each dot1p priority to only one priority group.

The maximum number of priority groups supported in ETS output policies on an interface is equal to

the number of data queues (4) on the port. The 802.1p priorities in a priority group can map to multiple

queues.

If you configure more than one priority queue as strict priority or more than one priority group as strict

priority, the higher numbered priority queue is given preference when scheduling data traffic

Version 8.3.16.1

Introduced on MXL 10/40GbE Switch IO Module

dcb-input

Create a DCB input policy.

group-name

Enter the name of the ETS priority group. Maximum: 32 characters.

Version 8.3.16.1

Introduced on MXL 10/40GbE Switch IO Module