884
Data Center Bridging Commands
• Traffic Class Group map defining the CoS queue to TCG mapping.
The indirect mapping between the 802.1p priorities and the associated Traffic
Class Group mapping is advertised by DCBX as part of ETS TLVs. For this
indirect mapping to be valid, the following parameters need to be configured
in addition to the configuration of the TCGs.
1
Configure 8021.p priority to CoS mapping for the ingress ports.
2
Enable Trust mode on the ingress ports to trust the 802.1p priority present
in the frames.
ETS TLVs use DCBX Asymmetric attribute exchange mechanism to
exchange ETS information between the peers. In this exchange, each peer
device sends its ETS configuration via the “configuration” ETS TLV and
recommended ETS settings for the peer using the “recommend” ETS TLV.
Both the configuration and recommendation ETS TLVs are implemented for
Dell Networking switches in release 4.2.
The peer ETS TLVs are stored in the DCBX database and are accessible using
show commands.
The Application Priority TLV is accepted from auto-upstream devices and
propagated to auto-downstream devices. In addition, if iSCSI CoS is enabled,
an additional entry in the Application Priority TLV is added as discussed in
the iSCSI section.
Data Center Bridging Exchange Protocol Main Objective
The DCBX protocol implementation conforms to the IEEE 802.1Qaz
specification with some exceptions. To be interoperable with legacy industry
implementations of DCBX protocol, a hybrid model is used to support both
the IEEE version of DCBX and legacy DCBX versions. The hybrid version of
the DCBX conforms to all aspects of the legacy standards to the degree
necessary to support interoperability with a wide variety of FCoE capable
switches.
The main objective of DCBX is to perform the following operations:
• Discovery of DCB capability in a peer
DCBX is used to learn about the capabilities of the peer device. It is a
means to determine if the peer device supports a particular feature such as
PFC.
• DCB feature misconfiguration detection
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Страница 82: ...Contents 82 ...
Страница 216: ...216 Layer 2 Switching Commands ...
Страница 248: ...248 AAA Commands ...
Страница 256: ...256 Administrative Profiles Commands ...
Страница 278: ...278 ACL Commands ...
Страница 296: ...296 Address Table Commands ...
Страница 344: ...344 DHCP Snooping Commands ...
Страница 356: ...356 Dynamic ARP Inspection Commands 12 Enabled Disabled ...
Страница 414: ...414 Ethernet Configuration Commands ...
Страница 465: ...IGMP Snooping Commands 465 Example console config ip igmp snooping vlan 10 mrouter interface Gi1 0 2 ...
Страница 466: ...466 IGMP Snooping Commands ...
Страница 476: ...476 IGMP Snooping Querier Commands ...
Страница 508: ...508 IPv6 Access List Commands ...
Страница 520: ...520 IPv6 MLD Snooping Commands ...
Страница 528: ...528 IPv6 MLD Snooping Querier Commands ...
Страница 550: ...550 Link Dependency Commands ...
Страница 574: ...574 LLDP Commands ...
Страница 606: ...606 Port Channel Commands ...
Страница 626: ...626 MLAG ...
Страница 634: ...634 Port Monitor Commands ...
Страница 728: ...728 RADIUS Commands ...
Страница 780: ...780 TACACS Commands ...
Страница 790: ...790 UDLD Commands User Guidelines This command has no user guidelines ...
Страница 840: ...840 Voice VLAN Commands ...
Страница 878: ...878 802 1x Commands ...
Страница 880: ...880 Data Center Technology Commands ...
Страница 915: ...Priority Flow Control Commands 915 Te1 0 23 0 2 4 7 3 Active Te1 0 24 0 7 Inactive ...
Страница 916: ...916 Priority Flow Control Commands ...
Страница 918: ...918 Layer 3 Commands ...
Страница 958: ...958 DHCP Server and Relay Agent Commands ...
Страница 994: ...994 DHCPv6 Snooping Commands ...
Страница 1002: ...1002 DVMRP Commands ...
Страница 1006: ...1006 GMRP Commands ...
Страница 1028: ...1028 IGMP Proxy Commands ...
Страница 1080: ...1080 IP Routing Commands ...
Страница 1131: ...IPv6 Routing Commands 1131 2 2001 2 12 msec 13 msec 12 msec 3 2001 2 14 msec 9 msec 11 msec ...
Страница 1132: ...1132 IPv6 Routing Commands ...
Страница 1136: ...1136 Loopback Interface Commands ...
Страница 1165: ...Multicast Commands 1165 ...
Страница 1166: ...1166 Multicast Commands ...
Страница 1188: ...1188 IPv6 Multicast Commands ...
Страница 1189: ...IPv6 Multicast Commands 1189 ...
Страница 1190: ...1190 IPv6 Multicast Commands ...
Страница 1276: ...1276 OSPF Commands console config router timers spf 20 30 ...
Страница 1356: ...1356 Routing Information Protocol Commands ...
Страница 1362: ...1362 Tunnel Interface Commands ...
Страница 1384: ...1384 Virtual Router Redundancy Protocol Commands ...
Страница 1386: ...1386 Utility Commands ...
Страница 1426: ...1426 Captive Portal Commands ...
Страница 1450: ...1450 Clock Commands ...
Страница 1456: ...1456 Command Line Configuration Scripting Commands ...
Страница 1476: ...1476 Configuration and Image File Commands ...
Страница 1520: ...1520 Password Management Commands ...
Страница 1538: ...1538 Power Over Ethernet Commands Example console config show power inline firmware version Unit Firmware Version 1 248_48 ...
Страница 1564: ...1564 SDM Templates Commands ...
Страница 1596: ...1596 Serviceability Tracing Packet Commands ...
Страница 1608: ...1608 Sflow Commands ...
Страница 1634: ...1634 SNMP Commands ...
Страница 1646: ...1646 SSH Commands IP Address User Name Idle Time SessionTime 10 240 1 122 John 00 00 00 00 00 08 ...
Страница 1668: ...1668 Syslog Commands ...
Страница 1744: ...1744 System Management Commands ...
Страница 1750: ...1750 Terminal Length Commands ...
Страница 1762: ...1762 USB Flash Drive Commands ...
Страница 1786: ...1786 Web Server Commands ...
Страница 1821: ...W write 1474 write core 1593 ...
Страница 1822: ...www dell com support dell com Printed in the U S A ...
Страница 1823: ......