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Commit | Line | Data |
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77987911 | 1 | .TH IP\-LINK 8 "13 Dec 2012" "iproute2" "Linux" |
761a1e60 CT |
2 | .SH "NAME" |
3 | ip-link \- network device configuration | |
4 | .SH "SYNOPSIS" | |
5 | .sp | |
6 | .ad l | |
7 | .in +8 | |
8 | .ti -8 | |
9 | .B ip | |
10 | .RI "[ " OPTIONS " ]" | |
11 | .B link | |
12 | .RI " { " COMMAND " | " | |
13 | .BR help " }" | |
14 | .sp | |
15 | ||
16 | .ti -8 | |
17 | .IR OPTIONS " := { " | |
18 | \fB\-V\fR[\fIersion\fR] | | |
b68d9837 | 19 | \fB\-h\fR[\fIuman-readable\fR] | |
761a1e60 CT |
20 | \fB\-s\fR[\fItatistics\fR] | |
21 | \fB\-r\fR[\fIesolve\fR] | | |
22 | \fB\-f\fR[\fIamily\fR] { | |
23 | .BR inet " | " inet6 " | " ipx " | " dnet " | " link " } | " | |
24 | \fB\-o\fR[\fIneline\fR] } | |
25 | ||
26 | .ti -8 | |
9fc56974 AH |
27 | .BI "ip link add" |
28 | .RB "[ " link | |
29 | .IR DEVICE " ]" | |
761a1e60 CT |
30 | .RB "[ " name " ]" |
31 | .I NAME | |
32 | .br | |
33 | .RB "[ " txqueuelen | |
34 | .IR PACKETS " ]" | |
35 | .br | |
36 | .RB "[ " address | |
37 | .IR LLADDR " ]" | |
38 | .RB "[ " broadcast | |
39 | .IR LLADDR " ]" | |
40 | .br | |
41 | .RB "[ " mtu | |
42 | .IR MTU " ]" | |
4de8d885 PE |
43 | .RB "[ " index |
44 | .IR IDX " ]" | |
761a1e60 | 45 | .br |
d992f3e6 JP |
46 | .RB "[ " numtxqueues |
47 | .IR QUEUE_COUNT " ]" | |
48 | .RB "[ " numrxqueues | |
49 | .IR QUEUE_COUNT " ]" | |
50 | .br | |
761a1e60 CT |
51 | .BR type " TYPE" |
52 | .RI "[ " ARGS " ]" | |
53 | ||
54 | .ti -8 | |
55 | .IR TYPE " := [ " | |
f1a6f4e9 | 56 | .BR bridge " | " |
e37a9c73 | 57 | .BR bond " | " |
f1a6f4e9 SH |
58 | .BR can " | " |
59 | .BR dummy " | " | |
5c0aec93 | 60 | .BR hsr " | " |
f1a6f4e9 SH |
61 | .BR ifb " | " |
62 | .BR ipoib " |" | |
63 | .BR macvlan " | " | |
e4c35682 | 64 | .BR macvtap " | " |
f1a6f4e9 SH |
65 | .BR vcan " | " |
66 | .BR veth " | " | |
67 | .BR vlan " | " | |
77987911 ND |
68 | .BR vxlan " |" |
69 | .BR ip6tnl " |" | |
70 | .BR ipip " |" | |
9abde37c | 71 | .BR sit " |" |
72 | .BR gre " |" | |
73 | .BR gretap " |" | |
74 | .BR ip6gre " |" | |
75 | .BR ip6gretap " ]" | |
761a1e60 CT |
76 | |
77 | .ti -8 | |
78 | .BI "ip link delete " DEVICE | |
79 | .BI type " TYPE" | |
80 | .RI "[ " ARGS " ]" | |
81 | ||
82 | .ti -8 | |
83 | .BR "ip link set " { | |
84 | .IR DEVICE " | " | |
85 | .BI "group " GROUP | |
86 | .RB "} { " up " | " down " | " arp " { " on " | " off " } |" | |
87 | .br | |
88 | .BR promisc " { " on " | " off " } |" | |
89 | .br | |
90 | .BR allmulticast " { " on " | " off " } |" | |
91 | .br | |
92 | .BR dynamic " { " on " | " off " } |" | |
93 | .br | |
94 | .BR multicast " { " on " | " off " } |" | |
95 | .br | |
96 | .B txqueuelen | |
97 | .IR PACKETS " |" | |
98 | .br | |
99 | .B name | |
100 | .IR NEWNAME " |" | |
101 | .br | |
102 | .B address | |
103 | .IR LLADDR " |" | |
104 | .B broadcast | |
105 | .IR LLADDR " |" | |
106 | .br | |
107 | .B mtu | |
108 | .IR MTU " |" | |
109 | .br | |
110 | .B netns | |
111 | .IR PID " |" | |
112 | .br | |
113 | .B netns | |
114 | .IR NETNSNAME " |" | |
115 | .br | |
116 | .B alias | |
117 | .IR NAME " |" | |
118 | .br | |
119 | .B vf | |
120 | .IR NUM " [" | |
121 | .B mac | |
122 | .IR LLADDR " ] [" | |
123 | .B vlan | |
124 | .IR VLANID " [ " | |
125 | .B qos | |
126 | .IR VLAN-QOS " ] ] [" | |
127 | .B rate | |
128 | .IR TXRATE " ] [" | |
f89a2a05 SC |
129 | .B max_tx_rate |
130 | .IR TXRATE " ] [" | |
131 | .B min_tx_rate | |
132 | .IR TXRATE " ] [" | |
63f60e3a OG |
133 | .B spoofchk { on | off } ] [ |
134 | .B state { auto | enable | disable} | |
761a1e60 CT |
135 | ] | |
136 | .br | |
137 | .B master | |
138 | .IR DEVICE | |
139 | .br | |
140 | .B nomaster | |
141 | .BR " }" | |
142 | ||
143 | ||
144 | .ti -8 | |
145 | .B ip link show | |
146 | .RI "[ " DEVICE " | " | |
147 | .B group | |
1b944148 VK |
148 | .IR GROUP " | " |
149 | .BR up " | " | |
150 | .B master | |
712249d8 VK |
151 | .IR DEVICE " | " |
152 | .B type | |
153 | .IR TYPE " ]" | |
761a1e60 | 154 | |
1f299e92 | 155 | .ti -8 |
156 | .B ip link help | |
157 | .RI "[ " TYPE " ]" | |
158 | ||
761a1e60 CT |
159 | .SH "DESCRIPTION" |
160 | .SS ip link add - add virtual link | |
161 | ||
162 | .TP | |
163 | .BI link " DEVICE " | |
164 | specifies the physical device to act operate on. | |
165 | ||
166 | .I NAME | |
167 | specifies the name of the new virtual device. | |
168 | ||
169 | .I TYPE | |
170 | specifies the type of the new device. | |
171 | .sp | |
172 | Link types: | |
173 | ||
174 | .in +8 | |
f1a6f4e9 SH |
175 | .B bridge |
176 | - Ethernet Bridge device | |
761a1e60 | 177 | .sp |
cc26a890 JP |
178 | .B bond |
179 | - Bonding device | |
180 | .sp | |
761a1e60 CT |
181 | .B dummy |
182 | - Dummy network interface | |
183 | .sp | |
2f937359 | 184 | .B hsr |
185 | - High-availability Seamless Redundancy device | |
186 | .sp | |
761a1e60 CT |
187 | .B ifb |
188 | - Intermediate Functional Block device | |
189 | .sp | |
f1a6f4e9 SH |
190 | .B ipoib |
191 | - IP over Infiniband device | |
192 | .sp | |
761a1e60 | 193 | .B macvlan |
f1a6f4e9 | 194 | - Virtual interface base on link layer address (MAC) |
761a1e60 | 195 | .sp |
e4c35682 RR |
196 | .B macvtap |
197 | - Virtual interface based on link layer address (MAC) and TAP. | |
198 | .sp | |
f1a6f4e9 | 199 | .B vcan |
2b70fe15 | 200 | - Virtual Controller Area Network interface |
761a1e60 | 201 | .sp |
f1a6f4e9 SH |
202 | .B veth |
203 | - Virtual ethernet interface | |
de038993 | 204 | .sp |
f1a6f4e9 SH |
205 | .BR vlan |
206 | - 802.1q tagged virtual LAN interface | |
207 | .sp | |
208 | .BR vxlan | |
209 | - Virtual eXtended LAN | |
77987911 ND |
210 | .sp |
211 | .BR ip6tnl | |
212 | - Virtual tunnel interface IPv4|IPv6 over IPv6 | |
213 | .sp | |
214 | .BR ipip | |
215 | - Virtual tunnel interface IPv4 over IPv4 | |
216 | .sp | |
217 | .BR sit | |
218 | - Virtual tunnel interface IPv6 over IPv4 | |
9abde37c | 219 | .sp |
220 | .BR gre | |
221 | - Virtual tunnel interface GRE over IPv4 | |
222 | .sp | |
223 | .BR gretap | |
d36d9d41 | 224 | - Virtual L2 tunnel interface GRE over IPv4 |
9abde37c | 225 | .sp |
226 | .BR ip6gre | |
d36d9d41 | 227 | - Virtual tunnel interface GRE over IPv6 |
9abde37c | 228 | .sp |
229 | .BR ip6gretap | |
d36d9d41 | 230 | - Virtual L2 tunnel interface GRE over IPv6 |
761a1e60 CT |
231 | .in -8 |
232 | ||
d992f3e6 JP |
233 | .TP |
234 | .BI numtxqueues " QUEUE_COUNT " | |
235 | specifies the number of transmit queues for new device. | |
236 | ||
237 | .TP | |
238 | .BI numrxqueues " QUEUE_COUNT " | |
239 | specifies the number of receive queues for new device. | |
240 | ||
4de8d885 PE |
241 | .TP |
242 | .BI index " IDX " | |
243 | specifies the desired index of the new virtual device. The link creation fails, if the index is busy. | |
244 | ||
2816a568 TR |
245 | .TP |
246 | VXLAN Type Support | |
63f60e3a | 247 | For a link of type |
2816a568 TR |
248 | .I VXLAN |
249 | the following additional arguments are supported: | |
250 | ||
251 | .BI "ip link add " DEVICE | |
f66611d8 | 252 | .BI type " vxlan " id " ID" |
2816a568 TR |
253 | .R " [ " |
254 | .BI dev " PHYS_DEV " | |
7cfa3802 AW |
255 | .RB " ] [ { " group " | " remote " } " |
256 | .I IPADDR | |
2816a568 TR |
257 | .R " ] [ " |
258 | .BI local " IPADDR " | |
259 | .R " ] [ " | |
260 | .BI ttl " TTL " | |
261 | .R " ] [ " | |
262 | .BI tos " TOS " | |
263 | .R " ] [ " | |
264 | .BI port " MIN MAX " | |
265 | .R " ] [ " | |
266 | .I "[no]learning " | |
267 | .R " ] [ " | |
268 | .I "[no]proxy " | |
269 | .R " ] [ " | |
270 | .I "[no]rsc " | |
271 | .R " ] [ " | |
272 | .I "[no]l2miss " | |
273 | .R " ] [ " | |
274 | .I "[no]l3miss " | |
c2fbc57e ND |
275 | .R " ] [ " |
276 | .BI ageing " SECONDS " | |
277 | .R " ] [ " | |
278 | .BI maxaddress " NUMBER " | |
2816a568 TR |
279 | .R " ]" |
280 | ||
281 | .in +8 | |
282 | .sp | |
283 | .BI id " VNI " | |
284 | - specifies the VXLAN Network Identifer (or VXLAN Segment | |
285 | Identifier) to use. | |
286 | ||
287 | .BI dev " PHYS_DEV" | |
288 | - specifies the physical device to use for tunnel endpoint communication. | |
289 | ||
290 | .sp | |
291 | .BI group " IPADDR" | |
292 | - specifies the multicast IP address to join. | |
7cfa3802 AW |
293 | This parameter cannot be specified with the |
294 | .B remote | |
295 | parameter. | |
296 | ||
297 | .sp | |
298 | .BI remote " IPADDR" | |
299 | - specifies the unicast destination IP address to use in outgoing packets | |
300 | when the destination link layer address is not known in the VXLAN device | |
301 | forwarding database. This parameter cannot be specified with the | |
302 | .B group | |
303 | parameter. | |
2816a568 TR |
304 | |
305 | .sp | |
306 | .BI local " IPADDR" | |
307 | - specifies the source IP address to use in outgoing packets. | |
308 | ||
309 | .sp | |
310 | .BI ttl " TTL" | |
311 | - specifies the TTL value to use in outgoing packets. | |
312 | ||
313 | .sp | |
314 | .BI tos " TOS" | |
315 | - specifies the TOS value to use in outgoing packets. | |
316 | ||
317 | .sp | |
318 | .BI port " MIN MAX" | |
319 | - specifies the range of port numbers to use as UDP | |
320 | source ports to communicate to the remote VXLAN tunnel endpoint. | |
321 | ||
322 | .sp | |
323 | .I [no]learning | |
324 | - specifies if unknown source link layer addresses and IP addresses | |
325 | are entered into the VXLAN device forwarding database. | |
326 | ||
327 | .sp | |
328 | .I [no]rsc | |
329 | - specifies if route short circuit is turned on. | |
330 | ||
331 | .sp | |
332 | .I [no]proxy | |
333 | - specifies ARP proxy is turned on. | |
334 | ||
335 | .sp | |
336 | .I [no]l2miss | |
337 | - specifies if netlink LLADDR miss notifications are generated. | |
338 | ||
339 | .sp | |
340 | .I [no]l3miss | |
341 | - specifies if netlink IP ADDR miss notifications are generated. | |
342 | ||
c2fbc57e ND |
343 | .sp |
344 | .BI ageing " SECONDS" | |
345 | - specifies the lifetime in seconds of FDB entries learnt by the kernel. | |
346 | ||
347 | .sp | |
348 | .BI maxaddress " NUMBER" | |
349 | - specifies the maximum number of FDB entries. | |
350 | ||
2816a568 TR |
351 | .in -8 |
352 | ||
9abde37c | 353 | .TP |
354 | IP6GRE/IP6GRETAP Type Support | |
63f60e3a | 355 | For a link of type |
9abde37c | 356 | .I IP6GRE/IP6GRETAP |
357 | the following additional arguments are supported: | |
358 | ||
359 | .BI "ip link add " DEVICE | |
360 | .BI type " { ip6gre | ip6gretap } " remote " ADDR " local " ADDR | |
361 | .R " [ " | |
362 | .I "[i|o]seq]" | |
363 | .R " ] [ " | |
364 | .I "[i|o]key" KEY | |
365 | .R " ] [ " | |
366 | .I " [i|o]csum " | |
367 | .R " ] [ " | |
368 | .BI hoplimit " TTL " | |
369 | .R " ] [ " | |
370 | .BI encaplimit " ELIM " | |
371 | .R " ] [ " | |
372 | .BI tclass " TCLASS " | |
373 | .R " ] [ " | |
374 | .BI flowlabel " FLOWLABEL " | |
375 | .R " ] [ " | |
376 | .BI "dscp inherit" | |
377 | .R " ] [ " | |
378 | .BI dev " PHYS_DEV " | |
379 | .R " ]" | |
380 | ||
381 | .in +8 | |
382 | .sp | |
383 | .BI remote " ADDR " | |
384 | - specifies the remote IPv6 address of the tunnel. | |
385 | ||
386 | .sp | |
387 | .BI local " ADDR " | |
388 | - specifies the fixed local IPv6 address for tunneled packets. | |
389 | It must be and address on another interface on this host. | |
390 | ||
391 | .sp | |
392 | .BI [i|o]seq | |
393 | - serialize packets. | |
394 | The | |
395 | .B oseq | |
396 | flag enables sequencing of outgoing packets. | |
397 | The | |
398 | .B iseq | |
399 | flag requires that all input packets are serialized. | |
400 | ||
401 | .sp | |
402 | .BI [i|o]key " KEY" | |
403 | - use keyed GRE with key | |
404 | .IR KEY ". "KEY | |
405 | is either a number or an IPv4 address-like dotted quad. | |
406 | The | |
407 | .B key | |
408 | parameter specifies the same key to use in both directions. | |
409 | The | |
410 | .BR ikey " and " okey | |
411 | parameters specify different keys for input and output. | |
412 | ||
413 | .sp | |
414 | .BI [i|o]csum | |
415 | - generate/require checksums for tunneled packets. | |
416 | The | |
417 | .B ocsum | |
418 | flag calculates checksums for outgoing packets. | |
419 | The | |
420 | .B icsum | |
421 | flag requires that all input packets have the correct | |
422 | checksum. The | |
423 | .B csum | |
424 | flag is equivalent to the combination | |
425 | .BR "icsum ocsum" . | |
426 | ||
427 | .sp | |
428 | .BI hoplimit " TTL" | |
429 | - specifies Hop Limit value to use in outgoing packets. | |
430 | ||
431 | .sp | |
432 | .BI encaplimit " ELIM" | |
433 | - specifies a fixed encapsulation limit. Default is 4. | |
434 | ||
435 | .sp | |
436 | .BI flowlabel " FLOWLABEL" | |
63f60e3a | 437 | - specifies a fixed flowlabel. |
9abde37c | 438 | |
439 | .sp | |
440 | .BI tclass " TCLASS" | |
441 | - specifies the traffic class field on | |
442 | tunneled packets, which can be specified as either a two-digit | |
443 | hex value (e.g. c0) or a predefined string (e.g. internet). | |
444 | The value | |
445 | .B inherit | |
446 | causes the field to be copied from the original IP header. The | |
447 | values | |
448 | .BI "inherit/" STRING | |
449 | or | |
450 | .BI "inherit/" 00 ".." ff | |
451 | will set the field to | |
452 | .I STRING | |
453 | or | |
454 | .IR 00 ".." ff | |
455 | when tunneling non-IP packets. The default value is 00. | |
456 | ||
457 | .in -8 | |
458 | ||
8ca8fac7 OG |
459 | .TP |
460 | IPoIB Type Support | |
461 | For a link of type | |
462 | .I IPoIB | |
463 | the following additional arguments are supported: | |
464 | ||
465 | .BI "ip link add " DEVICE " name " NAME | |
466 | .BI type " ipoib [ " pkey " PKEY ] [" mode " MODE " ] | |
467 | ||
468 | .in +8 | |
469 | .sp | |
470 | .BI pkey " PKEY " | |
471 | - specifies the IB P-Key to use. | |
472 | ||
473 | .BI mode " MODE " | |
474 | - specifies the mode (datagram or connected) to use. | |
475 | ||
761a1e60 CT |
476 | .SS ip link delete - delete virtual link |
477 | .I DEVICE | |
478 | specifies the virtual device to act operate on. | |
479 | .I TYPE | |
480 | specifies the type of the device. | |
481 | ||
482 | ||
483 | .TP | |
484 | .BI dev " DEVICE " | |
485 | specifies the physical device to act operate on. | |
486 | ||
487 | .SS ip link set - change device attributes | |
488 | ||
489 | .TP | |
490 | .BI dev " DEVICE " | |
491 | .I DEVICE | |
6274b0b7 | 492 | specifies network device to operate on. When configuring SR-IOV Virtual Function |
761a1e60 CT |
493 | (VF) devices, this keyword should specify the associated Physical Function (PF) |
494 | device. | |
495 | ||
496 | .TP | |
497 | .BI group " GROUP " | |
498 | .I GROUP | |
499 | has a dual role: If both group and dev are present, then move the device to the | |
500 | specified group. If only a group is specified, then the command operates on | |
501 | all devices in that group. | |
502 | ||
503 | .TP | |
504 | .BR up " and " down | |
505 | change the state of the device to | |
506 | .B UP | |
507 | or | |
508 | .BR "DOWN" . | |
509 | ||
510 | .TP | |
511 | .BR "arp on " or " arp off" | |
512 | change the | |
513 | .B NOARP | |
514 | flag on the device. | |
515 | ||
516 | .TP | |
517 | .BR "multicast on " or " multicast off" | |
518 | change the | |
519 | .B MULTICAST | |
520 | flag on the device. | |
521 | ||
522 | .TP | |
523 | .BR "dynamic on " or " dynamic off" | |
524 | change the | |
525 | .B DYNAMIC | |
526 | flag on the device. | |
527 | ||
528 | .TP | |
529 | .BI name " NAME" | |
530 | change the name of the device. This operation is not | |
531 | recommended if the device is running or has some addresses | |
532 | already configured. | |
533 | ||
534 | .TP | |
535 | .BI txqueuelen " NUMBER" | |
536 | .TP | |
537 | .BI txqlen " NUMBER" | |
538 | change the transmit queue length of the device. | |
539 | ||
540 | .TP | |
541 | .BI mtu " NUMBER" | |
542 | change the | |
543 | .I MTU | |
544 | of the device. | |
545 | ||
546 | .TP | |
547 | .BI address " LLADDRESS" | |
548 | change the station address of the interface. | |
549 | ||
550 | .TP | |
551 | .BI broadcast " LLADDRESS" | |
552 | .TP | |
553 | .BI brd " LLADDRESS" | |
554 | .TP | |
555 | .BI peer " LLADDRESS" | |
556 | change the link layer broadcast address or the peer address when | |
557 | the interface is | |
558 | .IR "POINTOPOINT" . | |
559 | ||
560 | .TP | |
561 | .BI netns " PID" | |
562 | move the device to the network namespace associated with the process | |
563 | .IR "PID". | |
564 | ||
565 | .TP | |
566 | .BI netns " NETNSNAME" | |
567 | move the device to the network namespace associated with name | |
568 | .IR "NETNSNAME". | |
569 | ||
570 | .TP | |
571 | .BI alias " NAME" | |
572 | give the device a symbolic name for easy reference. | |
573 | ||
574 | .TP | |
575 | .BI group " GROUP" | |
576 | specify the group the device belongs to. | |
577 | The available groups are listed in file | |
578 | .BR "@SYSCONFDIR@/group" . | |
579 | ||
580 | .TP | |
581 | .BI vf " NUM" | |
582 | specify a Virtual Function device to be configured. The associated PF device | |
583 | must be specified using the | |
584 | .B dev | |
585 | parameter. | |
586 | ||
587 | .in +8 | |
588 | .BI mac " LLADDRESS" | |
589 | - change the station address for the specified VF. The | |
590 | .B vf | |
591 | parameter must be specified. | |
592 | ||
593 | .sp | |
594 | .BI vlan " VLANID" | |
595 | - change the assigned VLAN for the specified VF. When specified, all traffic | |
596 | sent from the VF will be tagged with the specified VLAN ID. Incoming traffic | |
597 | will be filtered for the specified VLAN ID, and will have all VLAN tags | |
598 | stripped before being passed to the VF. Setting this parameter to 0 disables | |
599 | VLAN tagging and filtering. The | |
600 | .B vf | |
601 | parameter must be specified. | |
602 | ||
603 | .sp | |
604 | .BI qos " VLAN-QOS" | |
605 | - assign VLAN QOS (priority) bits for the VLAN tag. When specified, all VLAN | |
606 | tags transmitted by the VF will include the specified priority bits in the | |
607 | VLAN tag. If not specified, the value is assumed to be 0. Both the | |
608 | .B vf | |
609 | and | |
610 | .B vlan | |
611 | parameters must be specified. Setting both | |
612 | .B vlan | |
613 | and | |
614 | .B qos | |
615 | as 0 disables VLAN tagging and filtering for the VF. | |
616 | ||
617 | .sp | |
618 | .BI rate " TXRATE" | |
f89a2a05 SC |
619 | -- change the allowed transmit bandwidth, in Mbps, for the specified VF. |
620 | Setting this parameter to 0 disables rate limiting. | |
621 | .B vf | |
622 | parameter must be specified. | |
623 | Please use new API | |
624 | .B "max_tx_rate" | |
625 | option instead. | |
626 | ||
627 | .sp | |
628 | .BI max_tx_rate " TXRATE" | |
629 | - change the allowed maximum transmit bandwidth, in Mbps, for the specified VF. | |
630 | .B vf | |
631 | parameter must be specified. | |
632 | ||
633 | .sp | |
634 | .BI min_tx_rate " TXRATE" | |
635 | - change the allowed minimum transmit bandwidth, in Mbps, for the specified VF. | |
636 | Minimum TXRATE should be always <= Maximum TXRATE. | |
761a1e60 CT |
637 | .B vf |
638 | parameter must be specified. | |
639 | ||
640 | .sp | |
641 | .BI spoofchk " on|off" | |
642 | - turn packet spoof checking on or off for the specified VF. | |
63f60e3a OG |
643 | .sp |
644 | .BI state " auto|enable|disable" | |
645 | - set the virtual link state as seen by the specified VF. Setting to auto means a | |
646 | reflection of the PF link state, enable lets the VF to communicate with other VFs on | |
647 | this host even if the PF link state is down, disable causes the HW to drop any packets | |
648 | sent by the VF. | |
761a1e60 CT |
649 | .in -8 |
650 | ||
651 | .TP | |
652 | .BI master " DEVICE" | |
653 | set master device of the device (enslave device). | |
654 | ||
655 | .TP | |
656 | .BI nomaster | |
657 | unset master device of the device (release device). | |
658 | ||
659 | .PP | |
660 | .B Warning: | |
661 | If multiple parameter changes are requested, | |
662 | .B ip | |
663 | aborts immediately after any of the changes have failed. | |
664 | This is the only case when | |
665 | .B ip | |
666 | can move the system to an unpredictable state. The solution | |
667 | is to avoid changing several parameters with one | |
668 | .B ip link set | |
669 | call. | |
670 | ||
671 | .SS ip link show - display device attributes | |
672 | ||
673 | .TP | |
674 | .BI dev " NAME " (default) | |
675 | .I NAME | |
676 | specifies the network device to show. | |
677 | If this argument is omitted all devices in the default group are listed. | |
678 | ||
679 | .TP | |
680 | .BI group " GROUP " | |
681 | .I GROUP | |
682 | specifies what group of devices to show. | |
683 | ||
684 | .TP | |
685 | .B up | |
686 | only display running interfaces. | |
687 | ||
1b944148 VK |
688 | .TP |
689 | .BI master " DEVICE " | |
690 | .I DEVICE | |
691 | specifies the master device which enslaves devices to show. | |
692 | ||
712249d8 VK |
693 | .TP |
694 | .BI type " TYPE " | |
695 | .I TYPE | |
696 | specifies the type of devices to show. | |
697 | ||
8322d28d | 698 | .TP |
1e264abc SH |
699 | The show command has additional formatting options: |
700 | ||
8322d28d | 701 | .RS |
1e264abc SH |
702 | .TP |
703 | .BR "\-s" , " \-stats", " \-statistics" | |
704 | output more statistics about packet usage. | |
705 | ||
706 | .TP | |
707 | .BR "\-d", " \-details" | |
708 | output more detailed information. | |
709 | ||
710 | .TP | |
711 | .BR "\-h", " \-human", " \-human-readble" | |
712 | output statistics with human readable values number followed by suffix | |
713 | ||
714 | .TP | |
715 | .BR "\-iec" | |
716 | print human readable rates in IEC units (ie. 1K = 1024). | |
8322d28d | 717 | .RE |
b68d9837 | 718 | |
1f299e92 | 719 | .SS ip link help - display help |
720 | ||
721 | .PP | |
722 | .I "TYPE" | |
723 | specifies which help of link type to dislpay. | |
724 | ||
761a1e60 CT |
725 | .SH "EXAMPLES" |
726 | .PP | |
727 | ip link show | |
728 | .RS 4 | |
729 | Shows the state of all network interfaces on the system. | |
730 | .RE | |
731 | .PP | |
712249d8 VK |
732 | ip link show type bridge |
733 | .RS 4 | |
734 | Shows the bridge devices. | |
735 | .RE | |
736 | .PP | |
737 | ip link show type vlan | |
738 | .RS 4 | |
739 | Shows the vlan devices. | |
740 | .RE | |
741 | .PP | |
417b2180 VK |
742 | ip link show master br0 |
743 | .RS 4 | |
744 | Shows devices enslaved by br0 | |
745 | .RE | |
746 | .PP | |
761a1e60 CT |
747 | ip link set dev ppp0 mtu 1400 |
748 | .RS 4 | |
749 | Change the MTU the ppp0 device. | |
750 | .RE | |
751 | .PP | |
752 | ip link add link eth0 name eth0.10 type vlan id 10 | |
753 | .RS 4 | |
754 | Creates a new vlan device eth0.10 on device eth0. | |
755 | .RE | |
756 | .PP | |
757 | ip link delete dev eth0.10 | |
758 | .RS 4 | |
759 | Removes vlan device. | |
760 | .RE | |
761 | ||
1f299e92 | 762 | ip link help gre |
763 | .RS 4 | |
764 | Display help for the gre link type. | |
765 | .RE | |
766 | ||
761a1e60 CT |
767 | .SH SEE ALSO |
768 | .br | |
769 | .BR ip (8) | |
770 | ||
771 | .SH AUTHOR | |
772 | Original Manpage by Michail Litvak <mci@owl.openwall.com> |