Configuring Data Center Bridging Features
1013
console(config-if-Te1/0/1)#classofservice traffic-class-group 2 2
console(config-if-Te1/0/1)#traffic-class-group weight 30 70 0
console(config-if-Te1/0/1)#traffic-class-group strict 2
N4000 Operation
When DCBx is enabled on manually configured ports, it is not necessary for
the ETS parameters to match, regardless of the version of DCBX negotiated
or configured. Configuration mismatches are logged.
In auto configuration mode, ETS parameters from the configuration source
are checked (Max TCs 3 and bandwidth equal to 100%) and if the system is
capable of performing the configuration, it is accepted and propagated as
received to the other auto-configuration ports. The ETS Recommendation
TLVs are preferred over the ETS Configuration TLVs. Auto-configuration via
DCBX overrides manually configured ETS parameters for auto-configured
ports, however, manual configuration is restored should the port be placed
back into the manual port role.
The ETS parameters received via DCBX are modified and applied to the
system via the DCBX Mapping function as follows (references are to the
802.1Qaz parameters):
• Like traffic classes are combined up to the limits of the system; e.g., no
more than 2 lossless CoS queues may be configured.
• The Priority Assignment Table (user priority to CoS queue mapping) is
utilized by the system to map user priorities to the traffic classes (CoS
queues).
• The TSA Assignment Table is converted to use 3 TCGs internally.
Priorities with like characteristics are combined into TCGs, i.e. strict
priority traffic is combined into a TCG, lossless traffic is combined into a
TCG, etc. Generally, strict priority traffic is mapped onto TCG 2, lossless
traffic is mapped onto TCG1 and best effort traffic is mapped onto TCG0.
• The bandwidths from the TC Bandwidth Table are summed based on the
internal TCG mapping and are used to set the TCG weights. Other
switches may assign bandwidth to strict priority queues. This bandwidth is
counted in the sum to ETS 100% validation check, however, internally the
weight for strict priority queues is ignored and they are configured for
unlimited bandwidth. An implication of this assignment is that the
percentage of bandwidth that may be consumed by a WDRR TCG after
Summary of Contents for N2000 Series
Page 50: ...50 Contents ...
Page 54: ...54 Introduction ...
Page 134: ...134 Using Dell OpenManage Switch Administrator ...
Page 168: ...168 Setting Basic Network Information ...
Page 206: ...206 Managing a Switch Stack ...
Page 242: ...242 Configuring Authentication Authorization and Accounting ...
Page 318: ...318 Managing General System Settings Figure 12 24 Verify MOTD ...
Page 322: ...322 Managing General System Settings ...
Page 358: ...358 Configuring SNMP ...
Page 388: ...388 Managing Images and Files ...
Page 415: ...Monitoring Switch Traffic 415 Figure 16 2 sFlow Agent Summary ...
Page 451: ...Monitoring Switch Traffic 451 5 On the Capture Options dialog click Manage Interfaces ...
Page 458: ...458 Monitoring Switch Traffic ...
Page 488: ...488 Configuring Port Characteristics Figure 18 3 Copy Port Settings 8 Click Apply ...
Page 502: ...502 Configuring Port Characteristics ...
Page 567: ...Configuring Port and System Security 567 Figure 19 38 Captive Portal Client Status ...
Page 674: ...674 Configuring VLANs Figure 21 17 GVRP Port Parameters Table ...
Page 680: ...680 Configuring VLANs Figure 21 24 Double VLAN Port Parameter Table ...
Page 714: ...714 Configuring VLANs ...
Page 737: ...Configuring the Spanning Tree Protocol 737 Figure 22 9 Spanning Tree Global Settings ...
Page 760: ...760 Configuring the Spanning Tree Protocol ...
Page 786: ...786 Discovering Network Devices ...
Page 793: ...Configuring Port Based Traffic Control 793 Figure 24 3 Storm Control 5 Click Apply ...
Page 878: ...878 Configuring Connectivity Fault Management ...
Page 899: ...Snooping and Inspecting Traffic 899 Figure 27 17 DAI Interface Configuration Summary ...
Page 903: ...Snooping and Inspecting Traffic 903 Figure 27 24 Dynamic ARP Inspection Statistics ...
Page 924: ...924 Configuring Link Aggregation Figure 28 7 LAG Hash Summary ...
Page 982: ...982 Configuring Link Aggregation ...
Page 1062: ...1062 Configuring DHCP Server and Relay Settings ...
Page 1096: ...1096 Configuring L2 and L3 Relay Features Figure 34 3 DHCP Relay Interface Summary ...
Page 1200: ...1200 Configuring OSPF and OSPFv3 ...
Page 1216: ...1216 Configuring RIP ...
Page 1240: ...1240 Configuring VRRP ...
Page 1291: ...Configuring Differentiated Services 1291 Figure 40 5 DiffServ Class Criteria ...
Page 1336: ...1336 Configuring Auto VoIP ...
Page 1367: ...Managing IPv4 and IPv6 Multicast 1367 Figure 43 20 IGMP Cache Information ...
Page 1422: ...1422 Managing IPv4 and IPv6 Multicast ...
Page 1440: ...1440 System Process Definitions ...
Page 1460: ...Index 1460 ...