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d04bc300 SH |
1 | .TH BRIDGE 8 "1 August 2012" "iproute2" "Linux" |
2 | .SH NAME | |
3 | bridge \- show / manipulate bridge addresses and devices | |
4 | .SH SYNOPSIS | |
5 | ||
6 | .ad l | |
7 | .in +8 | |
8 | .ti -8 | |
9 | .B bridge | |
10 | .RI "[ " OPTIONS " ] " OBJECT " { " COMMAND " | " | |
11 | .BR help " }" | |
12 | .sp | |
13 | ||
14 | .ti -8 | |
15 | .IR OBJECT " := { " | |
54e9c3a3 | 16 | .BR link " | " fdb " | " mdb " | " vlan " | " monitor " }" |
d04bc300 SH |
17 | .sp |
18 | ||
19 | .ti -8 | |
20 | .IR OPTIONS " := { " | |
21 | \fB\-V\fR[\fIersion\fR] | | |
527910c8 | 22 | \fB\-s\fR[\fItatistics\fR] | |
db726379 RP |
23 | \fB\-n\fR[\fIetns\fR] name | |
24 | \fB\-b\fR[\fIatch\fR] filename | | |
25 | \fB\-j\fR[\fIson\fR] } | |
aa2f1335 VY |
26 | |
27 | .ti -8 | |
28 | .BR "bridge link set" | |
fc31817d | 29 | .B dev |
aa2f1335 VY |
30 | .IR DEV |
31 | .IR " [ " | |
fc31817d | 32 | .B cost |
aa2f1335 | 33 | .IR COST " ] [ " |
fc31817d PS |
34 | .B priority |
35 | .IR PRIO " ] [ " | |
36 | .B state | |
aa2f1335 VY |
37 | .IR STATE "] [" |
38 | .BR guard " { " on " | " off " } ] [ " | |
39 | .BR hairpin " { " on " | " off " } ] [ " | |
40 | .BR fastleave " { " on " | " off " } ] [ " | |
41 | .BR root_block " { " on " | " off " } ] [ " | |
f0f4ab60 | 42 | .BR learning " { " on " | " off " } ] [ " |
674bb438 | 43 | .BR learning_sync " { " on " | " off " } ] [ " |
f0f4ab60 | 44 | .BR flood " { " on " | " off " } ] [ " |
22a98f51 | 45 | .BR hwmode " { " vepa " | " veb " } ] [ " |
fc31817d | 46 | .BR self " ] [ " master " ] " |
aa2f1335 VY |
47 | |
48 | .ti -8 | |
49 | .BR "bridge link" " [ " show " ] [ " | |
fc31817d | 50 | .B dev |
aa2f1335 | 51 | .IR DEV " ]" |
d04bc300 SH |
52 | |
53 | .ti -8 | |
6e2e2cf0 | 54 | .BR "bridge fdb" " { " add " | " append " | " del " | " replace " } " |
d04bc300 | 55 | .I LLADDR |
fc31817d | 56 | .B dev |
d04bc300 | 57 | .IR DEV " { " |
c6d0cfb5 | 58 | .BR local " | " static " | " dynamic " } [ " |
cd8df30b | 59 | .BR self " ] [ " master " ] [ " router " ] [ " use " ] [ " |
fc31817d | 60 | .B dst |
7578ae88 TR |
61 | .IR IPADDR " ] [ " |
62 | .B vni | |
63 | .IR VNI " ] [" | |
64 | .B port | |
65 | .IR PORT " ] [" | |
66 | .B via | |
67 | .IR DEVICE " ]" | |
d04bc300 SH |
68 | |
69 | .ti -8 | |
70 | .BR "bridge fdb" " [ " show " ] [ " | |
fc31817d | 71 | .B dev |
d04bc300 SH |
72 | .IR DEV " ]" |
73 | ||
54e9c3a3 PP |
74 | .ti -8 |
75 | .BR "bridge mdb" " { " add " | " del " } " | |
fc31817d | 76 | .B dev |
54e9c3a3 PP |
77 | .IR DEV |
78 | .B port | |
79 | .IR PORT | |
80 | .B grp | |
81 | .IR GROUP " [ " | |
6aac8617 NA |
82 | .BR permanent " | " temp " ] [ " |
83 | .B vid | |
84 | .IR VID " ] " | |
54e9c3a3 PP |
85 | |
86 | .ti -8 | |
87 | .BR "bridge mdb show " [ " | |
fc31817d | 88 | .B dev |
54e9c3a3 PP |
89 | .IR DEV " ]" |
90 | ||
ab938710 VY |
91 | .ti -8 |
92 | .BR "bridge vlan" " { " add " | " del " } " | |
fc31817d | 93 | .B dev |
ab938710 | 94 | .IR DEV |
fc31817d | 95 | .B vid |
ab938710 | 96 | .IR VID " [ " |
fc31817d PS |
97 | .BR pvid " ] [ " untagged " ] [ " |
98 | .BR self " ] [ " master " ] " | |
ab938710 VY |
99 | |
100 | .ti -8 | |
101 | .BR "bridge vlan" " [ " show " ] [ " | |
fc31817d | 102 | .B dev |
ab938710 VY |
103 | .IR DEV " ]" |
104 | ||
d04bc300 | 105 | .ti -8 |
54e9c3a3 | 106 | .BR "bridge monitor" " [ " all " | " neigh " | " link " | " mdb " ]" |
d04bc300 SH |
107 | |
108 | .SH OPTIONS | |
109 | ||
110 | .TP | |
111 | .BR "\-V" , " -Version" | |
112 | print the version of the | |
113 | .B bridge | |
114 | utility and exit. | |
115 | ||
116 | .TP | |
117 | .BR "\-s" , " \-stats", " \-statistics" | |
a89d5329 | 118 | output more information. If this option |
49572501 | 119 | is given multiple times, the amount of information increases. |
d04bc300 SH |
120 | As a rule, the information is statistics or some time values. |
121 | ||
ba037267 NA |
122 | .TP |
123 | .BR "\-d" , " \-details" | |
124 | print detailed information about MDB router ports. | |
125 | ||
527910c8 VK |
126 | .TP |
127 | .BR "\-n" , " \-net" , " \-netns " <NETNS> | |
128 | switches | |
129 | .B bridge | |
130 | to the specified network namespace | |
131 | .IR NETNS . | |
132 | Actually it just simplifies executing of: | |
133 | ||
134 | .B ip netns exec | |
135 | .IR NETNS | |
136 | .B bridge | |
137 | .RI "[ " OPTIONS " ] " OBJECT " { " COMMAND " | " | |
138 | .BR help " }" | |
139 | ||
140 | to | |
141 | ||
142 | .B bridge | |
143 | .RI "-n[etns] " NETNS " [ " OPTIONS " ] " OBJECT " { " COMMAND " | " | |
144 | .BR help " }" | |
145 | ||
9de8c6d9 WK |
146 | .TP |
147 | .BR "\-b", " \-batch " <FILENAME> | |
148 | Read commands from provided file or standard input and invoke them. | |
149 | First failure will cause termination of bridge command. | |
150 | ||
151 | .TP | |
152 | .BR "\-force" | |
153 | Don't terminate bridge command on errors in batch mode. | |
154 | If there were any errors during execution of the commands, the application | |
155 | return code will be non zero. | |
d04bc300 | 156 | |
db726379 RP |
157 | .TP |
158 | .BR "\-json" | |
159 | Display results in JSON format. Currently available for vlan and fdb. | |
160 | ||
d04bc300 SH |
161 | .SH BRIDGE - COMMAND SYNTAX |
162 | ||
163 | .SS | |
164 | .I OBJECT | |
165 | ||
aa2f1335 VY |
166 | .TP |
167 | .B link | |
168 | - Bridge port. | |
169 | ||
d04bc300 | 170 | .TP |
5699275b | 171 | .B fdb |
d04bc300 SH |
172 | - Forwarding Database entry. |
173 | ||
54e9c3a3 PP |
174 | .TP |
175 | .B mdb | |
176 | - Multicast group database entry. | |
177 | ||
ab938710 VY |
178 | .TP |
179 | .B vlan | |
180 | - VLAN filter list. | |
181 | ||
d04bc300 SH |
182 | .SS |
183 | .I COMMAND | |
184 | ||
185 | Specifies the action to perform on the object. | |
186 | The set of possible actions depends on the object type. | |
187 | As a rule, it is possible to | |
188 | .BR "add" , " delete" | |
189 | and | |
190 | .B show | |
191 | (or | |
192 | .B list | |
193 | ) objects, but some objects do not allow all of these operations | |
a89d5329 | 194 | or have some additional commands. The |
d04bc300 | 195 | .B help |
a89d5329 | 196 | command is available for all objects. It prints |
d04bc300 SH |
197 | out a list of available commands and argument syntax conventions. |
198 | .sp | |
199 | If no command is given, some default command is assumed. | |
200 | Usually it is | |
201 | .B list | |
202 | or, if the objects of this class cannot be listed, | |
203 | .BR "help" . | |
204 | ||
aa2f1335 VY |
205 | .SH bridge link - bridge port |
206 | ||
207 | .B link | |
208 | objects correspond to the port devices of the bridge. | |
209 | ||
210 | .P | |
211 | The corresponding commands set and display port status and bridge specific | |
212 | attributes. | |
213 | ||
214 | .SS bridge link set - set bridge specific attributes on a port | |
215 | ||
216 | .TP | |
217 | .BI dev " NAME " | |
218 | interface name of the bridge port | |
219 | ||
220 | .TP | |
221 | .BI cost " COST " | |
222 | the STP path cost of the specified port. | |
223 | ||
224 | .TP | |
225 | .BI priority " PRIO " | |
a89d5329 PŠ |
226 | the STP port priority. The priority value is an unsigned 8-bit quantity |
227 | (number between 0 and 255). This metric is used in the designated port an | |
aa2f1335 VY |
228 | droot port selectio algorithms. |
229 | ||
230 | .TP | |
231 | .BI state " STATE " | |
a89d5329 PŠ |
232 | the operation state of the port. This is primarily used by user space STP/RSTP |
233 | implementation. One may enter a lowercased port state name, or one of the | |
234 | numbers below. Negative inputs are ignored, and unrecognized names return an | |
6b8c871d | 235 | error. |
aa2f1335 VY |
236 | |
237 | .B 0 | |
a89d5329 | 238 | - port is DISABLED. Make this port completely inactive. |
aa2f1335 VY |
239 | .sp |
240 | ||
241 | .B 1 | |
7fab22ab | 242 | - STP LISTENING state. Only valid if STP is enabled on the bridge. In this |
3aa8f8cb | 243 | state the port listens for STP BPDUs and drops all other traffic frames. |
aa2f1335 VY |
244 | .sp |
245 | ||
246 | .B 2 | |
a89d5329 | 247 | - STP LEARNING state. Only valid if STP is enabled on the bridge. In this |
aa2f1335 | 248 | state the port will accept traffic only for the purpose of updating MAC |
ac0817ef | 249 | address tables. |
aa2f1335 VY |
250 | .sp |
251 | ||
252 | .B 3 | |
a89d5329 | 253 | - STP FORWARDING state. Port is fully active. |
aa2f1335 VY |
254 | .sp |
255 | ||
256 | .B 4 | |
a89d5329 PŠ |
257 | - STP BLOCKING state. Only valid if STP is enabled on the bridge. This state |
258 | is used during the STP election process. In this state, port will only process | |
aa2f1335 VY |
259 | STP BPDUs. |
260 | .sp | |
261 | ||
262 | .TP | |
263 | .BR "guard on " or " guard off " | |
400b5404 | 264 | Controls whether STP BPDUs will be processed by the bridge port. By default, |
a89d5329 | 265 | the flag is turned off allowed BPDU processing. Turning this flag on will |
aa2f1335 VY |
266 | cause the port to stop processing STP BPDUs. |
267 | ||
268 | .TP | |
269 | .BR "hairpin on " or " hairpin off " | |
270 | Controls whether traffic may be send back out of the port on which it was | |
a89d5329 | 271 | received. By default, this flag is turned off and the bridge will not forward |
aa2f1335 VY |
272 | traffic back out of the receiving port. |
273 | ||
274 | .TP | |
275 | .BR "fastleave on " or " fastleave off " | |
276 | This flag allows the bridge to immediately stop multicast traffic on a port | |
a89d5329 PŠ |
277 | that receives IGMP Leave message. It is only used with IGMP snooping is |
278 | enabled on the bridge. By default the flag is off. | |
aa2f1335 VY |
279 | |
280 | .TP | |
281 | .BR "root_block on " or " root_block off " | |
a89d5329 PŠ |
282 | Controls whether a given port is allowed to become root port or not. Only used |
283 | when STP is enabled on the bridge. By default the flag is off. | |
aa2f1335 | 284 | |
f0f4ab60 VY |
285 | .TP |
286 | .BR "learning on " or " learning off " | |
287 | Controls whether a given port will learn MAC addresses from received traffic or | |
a89d5329 PŠ |
288 | not. If learning if off, the bridge will end up flooding any traffic for which |
289 | it has no FDB entry. By default this flag is on. | |
f0f4ab60 | 290 | |
674bb438 SF |
291 | .TP |
292 | .BR "learning_sync on " or " learning_sync off " | |
293 | Controls whether a given port will sync MAC addresses learned on device port to | |
294 | bridge FDB. | |
295 | ||
f0f4ab60 VY |
296 | .TP |
297 | .BR "flooding on " or " flooding off " | |
a89d5329 | 298 | Controls whether a given port will flood unicast traffic for which there is no FDB entry. By default this flag is on. |
f0f4ab60 | 299 | |
aa2f1335 VY |
300 | .TP |
301 | .BI hwmode | |
302 | Some network interface cards support HW bridge functionality and they may be | |
a89d5329 | 303 | configured in different modes. Currently support modes are: |
aa2f1335 VY |
304 | |
305 | .B vepa | |
306 | - Data sent between HW ports is sent on the wire to the external | |
307 | switch. | |
308 | ||
309 | .B veb | |
310 | - bridging happens in hardware. | |
311 | ||
22a98f51 RP |
312 | .TP |
313 | .BI self | |
314 | link setting is configured on specified physical device | |
315 | ||
316 | .TP | |
317 | .BI master | |
318 | link setting is configured on the software bridge (default) | |
319 | ||
25bc3d3d SA |
320 | .TP |
321 | .BR "\-t" , " \-timestamp" | |
322 | display current time when using monitor option. | |
22a98f51 | 323 | |
aa2f1335 VY |
324 | .SS bridge link show - list bridge port configuration. |
325 | ||
326 | This command displays the current bridge port configuration and flags. | |
327 | ||
d04bc300 SH |
328 | .SH bridge fdb - forwarding database management |
329 | ||
330 | .B fdb | |
fc31817d | 331 | objects contain known Ethernet addresses on a link. |
d04bc300 SH |
332 | |
333 | .P | |
334 | The corresponding commands display fdb entries, add new entries, | |
7578ae88 | 335 | append entries, |
d04bc300 SH |
336 | and delete old ones. |
337 | ||
d611682a | 338 | .SS bridge fdb add - add a new fdb entry |
d04bc300 | 339 | |
d611682a | 340 | This command creates a new fdb entry. |
d04bc300 SH |
341 | |
342 | .TP | |
7578ae88 | 343 | .BI "LLADDR" |
d04bc300 SH |
344 | the Ethernet MAC address. |
345 | ||
346 | .TP | |
7578ae88 | 347 | .BI dev " DEV" |
d04bc300 SH |
348 | the interface to which this address is associated. |
349 | ||
c6d0cfb5 RP |
350 | .B local |
351 | - is a local permanent fdb entry | |
352 | .sp | |
353 | ||
354 | .B static | |
355 | - is a static (no arp) fdb entry | |
356 | .sp | |
357 | ||
358 | .B dynamic | |
359 | - is a dynamic reachable age-able fdb entry | |
360 | .sp | |
361 | ||
d611682a | 362 | .B self |
cd8df30b RP |
363 | - the address is associated with the port drivers fdb. Usually hardware. |
364 | .sp | |
365 | ||
366 | .B master | |
367 | - the address is associated with master devices fdb. Usually software (default). | |
d611682a JF |
368 | .sp |
369 | ||
7578ae88 TR |
370 | .B router |
371 | - the destination address is associated with a router. | |
372 | Valid if the referenced device is a VXLAN type device and has | |
373 | route shortcircuit enabled. | |
374 | .sp | |
375 | ||
cd8df30b RP |
376 | .B use |
377 | - the address is in use. User space can use this option to | |
378 | indicate to the kernel that the fdb entry is in use. | |
379 | .sp | |
380 | ||
d04bc300 | 381 | .in -8 |
7578ae88 TR |
382 | The next command line parameters apply only |
383 | when the specified device | |
384 | .I DEV | |
385 | is of type VXLAN. | |
386 | .TP | |
387 | .BI dst " IPADDR" | |
388 | the IP address of the destination | |
389 | VXLAN tunnel endpoint where the Ethernet MAC ADDRESS resides. | |
390 | ||
391 | .TP | |
392 | .BI vni " VNI" | |
393 | the VXLAN VNI Network Identifier (or VXLAN Segment ID) | |
394 | to use to connect to the remote VXLAN tunnel endpoint. | |
395 | If omitted the value specified at vxlan device creation | |
396 | will be used. | |
397 | ||
398 | .TP | |
399 | .BI port " PORT" | |
400 | the UDP destination PORT number to use to connect to the | |
401 | remote VXLAN tunnel endpoint. | |
402 | If omitted the default value is used. | |
403 | ||
404 | .TP | |
405 | .BI via " DEVICE" | |
406 | device name of the outgoing interface for the | |
407 | VXLAN device driver to reach the | |
5699275b | 408 | remote VXLAN tunnel endpoint. |
7578ae88 TR |
409 | |
410 | .SS bridge fdb append - append a forwarding database entry | |
411 | This command adds a new fdb entry with an already known | |
412 | .IR LLADDR . | |
413 | Valid only for multicast link layer addresses. | |
414 | The command adds support for broadcast and multicast | |
415 | Ethernet MAC addresses. | |
416 | The Ethernet MAC address is added multiple times into | |
417 | the forwarding database and the vxlan device driver | |
418 | sends a copy of the data packet to each entry found. | |
419 | ||
420 | .PP | |
421 | The arguments are the same as with | |
fc31817d | 422 | .BR "bridge fdb add" . |
d04bc300 SH |
423 | |
424 | .SS bridge fdb delete - delete a forwarding database entry | |
425 | This command removes an existing fdb entry. | |
426 | ||
427 | .PP | |
428 | The arguments are the same as with | |
fc31817d | 429 | .BR "bridge fdb add" . |
d04bc300 | 430 | |
6e2e2cf0 PS |
431 | .SS bridge fdb replace - replace a forwarding database entry |
432 | If no matching entry is found, a new one will be created instead. | |
433 | ||
434 | .PP | |
435 | The arguments are the same as with | |
fc31817d | 436 | .BR "bridge fdb add" . |
6e2e2cf0 | 437 | |
d04bc300 SH |
438 | .SS bridge fdb show - list forwarding entries. |
439 | ||
49572501 | 440 | This command displays the current forwarding table. |
d04bc300 SH |
441 | |
442 | .PP | |
443 | With the | |
444 | .B -statistics | |
a89d5329 | 445 | option, the command becomes verbose. It prints out the last updated |
d04bc300 SH |
446 | and last used time for each entry. |
447 | ||
54e9c3a3 PP |
448 | .SH bridge mdb - multicast group database management |
449 | ||
450 | .B mdb | |
451 | objects contain known IP multicast group addresses on a link. | |
452 | ||
453 | .P | |
454 | The corresponding commands display mdb entries, add new entries, | |
455 | and delete old ones. | |
456 | ||
457 | .SS bridge mdb add - add a new multicast group database entry | |
458 | ||
459 | This command creates a new mdb entry. | |
460 | ||
461 | .TP | |
462 | .BI dev " DEV" | |
463 | the interface where this group address is associated. | |
464 | ||
465 | .TP | |
466 | .BI port " PORT" | |
467 | the port whose link is known to have members of this multicast group. | |
468 | ||
469 | .TP | |
470 | .BI grp " GROUP" | |
471 | the IP multicast group address whose members reside on the link connected to | |
472 | the port. | |
473 | ||
474 | .B permanent | |
475 | - the mdb entry is permanent | |
476 | .sp | |
477 | ||
478 | .B temp | |
479 | - the mdb entry is temporary (default) | |
480 | .sp | |
481 | ||
6aac8617 NA |
482 | .TP |
483 | .BI vid " VID" | |
484 | the VLAN ID which is known to have members of this multicast group. | |
485 | ||
54e9c3a3 PP |
486 | .in -8 |
487 | .SS bridge mdb delete - delete a multicast group database entry | |
488 | This command removes an existing mdb entry. | |
489 | ||
490 | .PP | |
491 | The arguments are the same as with | |
492 | .BR "bridge mdb add" . | |
493 | ||
494 | .SS bridge mdb show - list multicast group database entries | |
495 | ||
496 | This command displays the current multicast group membership table. The table | |
497 | is populated by IGMP and MLD snooping in the bridge driver automatically. It | |
498 | can be altered by | |
499 | .B bridge mdb add | |
500 | and | |
501 | .B bridge mdb del | |
502 | commands manually too. | |
503 | ||
504 | .TP | |
505 | .BI dev " DEV" | |
506 | the interface only whose entries should be listed. Default is to list all | |
507 | bridge interfaces. | |
508 | ||
509 | .PP | |
510 | With the | |
511 | .B -details | |
a89d5329 | 512 | option, the command becomes verbose. It prints out the ports known to have |
54e9c3a3 PP |
513 | a connected router. |
514 | ||
05d4f64d NA |
515 | .PP |
516 | With the | |
517 | .B -statistics | |
ba037267 | 518 | option, the command displays timer values for mdb and router port entries. |
05d4f64d | 519 | |
ab938710 VY |
520 | .SH bridge vlan - VLAN filter list |
521 | ||
522 | .B vlan | |
523 | objects contain known VLAN IDs for a link. | |
524 | ||
525 | .P | |
526 | The corresponding commands display vlan filter entries, add new entries, | |
527 | and delete old ones. | |
528 | ||
529 | .SS bridge vlan add - add a new vlan filter entry | |
530 | ||
531 | This command creates a new vlan filter entry. | |
532 | ||
533 | .TP | |
534 | .BI dev " NAME" | |
535 | the interface with which this vlan is associated. | |
536 | ||
537 | .TP | |
538 | .BI vid " VID" | |
539 | the VLAN ID that identifies the vlan. | |
540 | ||
541 | .TP | |
542 | .BI pvid | |
543 | the vlan specified is to be considered a PVID at ingress. | |
544 | Any untagged frames will be assigned to this VLAN. | |
545 | ||
546 | .TP | |
547 | .BI untagged | |
548 | the vlan specified is to be treated as untagged on egress. | |
549 | ||
550 | .TP | |
551 | .BI self | |
a89d5329 | 552 | the vlan is configured on the specified physical device. Required if the |
ab938710 VY |
553 | device is the bridge device. |
554 | ||
555 | .TP | |
556 | .BI master | |
6274b0b7 | 557 | the vlan is configured on the software bridge (default). |
ab938710 | 558 | |
296cee6f VD |
559 | .SS bridge vlan delete - delete a vlan filter entry |
560 | This command removes an existing vlan filter entry. | |
ab938710 VY |
561 | |
562 | .PP | |
563 | The arguments are the same as with | |
564 | .BR "bridge vlan add". | |
565 | The | |
566 | .BR "pvid " and " untagged" | |
567 | flags are ignored. | |
568 | ||
569 | .SS bridge vlan show - list vlan configuration. | |
570 | ||
571 | This command displays the current VLAN filter table. | |
572 | ||
7abf5de6 NA |
573 | .PP |
574 | With the | |
575 | .B -statistics | |
576 | option, the command displays per-vlan traffic statistics. | |
577 | ||
d04bc300 SH |
578 | .SH bridge monitor - state monitoring |
579 | ||
580 | The | |
581 | .B bridge | |
fc31817d | 582 | utility can monitor the state of devices and addresses |
a89d5329 | 583 | continuously. This option has a slightly different format. |
d04bc300 SH |
584 | Namely, the |
585 | .B monitor | |
586 | command is the first in the command line and then the object list follows: | |
587 | ||
588 | .BR "bridge monitor" " [ " all " |" | |
49572501 | 589 | .IR OBJECT-LIST " ]" |
d04bc300 SH |
590 | |
591 | .I OBJECT-LIST | |
592 | is the list of object types that we want to monitor. | |
593 | It may contain | |
fc31817d | 594 | .BR link ", " fdb ", and " mdb "." |
d04bc300 SH |
595 | If no |
596 | .B file | |
597 | argument is given, | |
598 | .B bridge | |
599 | opens RTNETLINK, listens on it and dumps state changes in the format | |
600 | described in previous sections. | |
601 | ||
602 | .P | |
603 | If a file name is given, it does not listen on RTNETLINK, | |
604 | but opens the file containing RTNETLINK messages saved in binary format | |
efb16971 | 605 | and dumps them. |
d04bc300 SH |
606 | |
607 | .SH NOTES | |
608 | This command uses facilities added in Linux 3.0. | |
609 | ||
610 | Although the forwarding table is maintained on a per-bridge device basis | |
611 | the bridge device is not part of the syntax. This is a limitation of the | |
612 | underlying netlink neighbour message protocol. When displaying the | |
613 | forwarding table, entries for all bridges are displayed. | |
614 | Add/delete/modify commands determine the underlying bridge device | |
6274b0b7 | 615 | based on the bridge to which the corresponding ethernet device is attached. |
d04bc300 SH |
616 | |
617 | ||
618 | .SH SEE ALSO | |
619 | .BR ip (8) | |
49572501 | 620 | .SH BUGS |
d04bc300 SH |
621 | .RB "Please direct bugreports and patches to: " <netdev@vger.kernel.org> |
622 | ||
623 | .SH AUTHOR | |
624 | Original Manpage by Stephen Hemminger |