{"id":3084,"date":"2022-12-20T16:43:27","date_gmt":"2022-12-20T19:43:27","guid":{"rendered":"http:\/\/lode.uno\/linux-man\/index.php\/2022\/12\/20\/dcb-dcbx-man8\/"},"modified":"2022-12-20T16:43:27","modified_gmt":"2022-12-20T19:43:27","slug":"dcb-dcbx-man8","status":"publish","type":"post","link":"https:\/\/lode.uno\/linux-man\/2022\/12\/20\/dcb-dcbx-man8\/","title":{"rendered":"DCB-DCBX (man8)"},"content":{"rendered":"

DCB-DCBX<\/h1>\n

NAME<\/a>
SYNOPSIS<\/a>
DESCRIPTION<\/a>
PARAMETERS<\/a>
EXAMPLE & USAGE<\/a>
EXIT STATUS<\/a>
SEE ALSO<\/a>
REPORTING BUGS<\/a>
AUTHOR<\/a> <\/p>\n

\n

NAME <\/a> <\/h2>\n

dcb-dcbx \u2212 show \/ manipulate port DCBX (Data Center Bridging eXchange)<\/p>\n

SYNOPSIS <\/a> <\/h2>\n

dcb<\/b> [ OPTIONS<\/i> ] dcbx<\/b> { COMMAND<\/i> | help<\/i> }<\/p>\n

dcb dcbx show dev<\/b> DEV<\/p>\n

dcb dcbx set dev<\/b> DEV [ host<\/b> ] [ lld-managed<\/b> ] [ cee<\/b> ] [ ieee<\/b> ] [ static<\/b> ]<\/p>\n

DESCRIPTION <\/a> <\/h2>\n

Data Center Bridging eXchange (DCBX) is a protocol used by DCB devices to exchange configuration information with directly connected peers. The Linux DCBX object is a 1-byte bitfield of flags that configure whether DCBX is implemented in the device or in the host, and which version of the protocol should be used. dcb dcbx<\/b> is used to access the per-port Linux DCBX object.<\/p>\n

There are two principal modes of operation: in host<\/b> mode, DCBX protocol is implemented by the host LLDP agent, and the DCB interfaces are used to propagate the negotiate parameters to capable devices. In lld-managed<\/b> mode, the configuration is handled by the device, and DCB interfaces are used for inspection of negotiated parameters, and can also be used to set initial parameters.<\/p>\n

PARAMETERS <\/a> <\/h2>\n

When used with dcb dcbx set,<\/b> the following keywords enable the corresponding configuration. The keywords that are not mentioned on the command line are considered disabled. When used with show,<\/b> each enabled feature is shown by its corresponding keyword.<\/p>\n\n\n
<\/td>\n\n

host<\/b><\/p>\n<\/td>\n

 <\/td>\n<\/tr>\n<\/table>\n

lld-managed<\/b><\/p>\n

The device is in the host mode of operation and, respectively, the lld-managed mode of operation, as described above. In principle these two keywords are mutually exclusive, but dcb dcbx<\/b> allows setting both and lets the driver handle it as appropriate.<\/p>\n\n\n\n\n
<\/td>\n\n

cee<\/b><\/p>\n<\/td>\n

<\/td>\n <\/td>\n<\/tr>\n
<\/td>\n\n

ieee<\/b><\/p>\n<\/td>\n

<\/td>\n\n

The device supports CEE (Converged Enhanced Ethernet) and, respecively, IEEE version of the DCB specification. Typically only one of these will be set, but dcb dcbx<\/b> does not mandate this.<\/p>\n<\/td>\n<\/tr>\n

<\/td>\n\n

static<\/b><\/p>\n<\/td>\n

<\/td>\n\n

indicates the engine supports static configuration. No actual negotiation is performed, negotiated parameters are always the initial configuration.<\/p>\n<\/td>\n<\/tr>\n<\/table>\n

EXAMPLE & USAGE <\/a> <\/h2>\n

Put the DCB engine into the “host” mode of operation, and use IEEE-standardized DCB interfaces:<\/p>\n

# dcb dcbx set dev eth0 host ieee<\/p>\n

Show what was set:<\/p>\n

# dcb dcbx show dev eth0
host ieee<\/p>\n

EXIT STATUS <\/a> <\/h2>\n

Exit status is 0 if command was successful or a positive integer upon failure.<\/p>\n

SEE ALSO <\/a> <\/h2>\n

dcb<\/b>(8)<\/p>\n

REPORTING BUGS <\/a> <\/h2>\n

Report any bugs to the Network Developers mailing list <\/b> where the development and maintenance is primarily done. You do not have to be subscribed to the list to send a message there.<\/p>\n

AUTHOR <\/a> <\/h2>\n

Petr Machata <\/p>\n

\n","protected":false},"excerpt":{"rendered":"

dcb-dcbx \u2212 show \/ manipulate port DCBX (Data Center Bridging eXchange) <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[5,52,233,4],"class_list":["post-3084","post","type-post","status-publish","format-standard","hentry","category-8-administracion-del-sistema","tag-5","tag-administracion","tag-dcb-dcbx","tag-man8"],"gutentor_comment":0,"_links":{"self":[{"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/posts\/3084","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/comments?post=3084"}],"version-history":[{"count":0,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/posts\/3084\/revisions"}],"wp:attachment":[{"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/media?parent=3084"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/categories?post=3084"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/tags?post=3084"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}