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unknown protocol drops in WS-C3850-48P

dhivahar
Level 1
Level 1

‎08-09-2017 10:09 PM - edited ‎03-08-2019 11:41 AM

Hi we have one WS-C3850-48P as our access switch SW version [cat3k_caa-universalk9]. From last few days suddenly some of the devices connected to it stops working one by one.

it all started with one port

port number Gi1/0/29

interface GigabitEthernet1/0/29
switchport mode access

thats all it has

other few ports which is giving problems are 

gi1/0/16

switchport access vlan 20
switchport mode access
switchport nonegotiate

sh int gi1/0/16

GigabitEthernet1/0/16 is up, line protocol is up (connected)
Hardware is Gigabit Ethernet, address is f078.16c4.b410 (bia f078.16c4.b410)
Description: South Wall XRF Lab next to rollup dr for PC
MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 100Mb/s, media type is 10/100/1000BaseTX
input flow-control is off, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input 09:40:52, output never, output hang never
Last clearing of "show interface" counters never
Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
1918068 packets input, 157952431 bytes, 0 no buffer
Received 1795 broadcasts (815 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 815 multicast, 0 pause input
0 input packets with dribble condition detected
16857557 packets output, 1513886531 bytes, 0 underruns
0 output errors, 0 collisions, 1 interface resets
633 unknown protocol drops
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier, 0 pause output
0 output buffer failures, 0 output buffers swapped out

current logs

*Aug 9 15:50:05.915: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/29, changed state to down
*Aug 9 15:50:08.986: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/29, changed state to up
*Aug 9 15:50:09.984: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/29, changed state to up
*Aug 9 15:51:58.316: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/29, changed state to down
*Aug 9 15:51:59.315: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/29, changed state to down
*Aug 9 15:52:01.905: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/29, changed state to up
*Aug 9 15:52:02.905: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/29, changed state to up
*Aug 9 15:57:21.605: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/16, changed state to down
*Aug 9 15:57:22.603: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/16, changed state to down
*Aug 9 15:57:53.456: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/16, changed state to up
*Aug 9 15:57:54.454: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/16, changed state to up
*Aug 9 17:29:18.625: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/16, changed state to down
*Aug 9 17:29:19.627: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/16, changed state to down
*Aug 9 17:29:21.897: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/16, changed state to up
*Aug 9 17:29:24.504: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/16, changed state to down
*Aug 9 17:29:52.423: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/16, changed state to up
*Aug 9 17:29:53.424: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/16, changed state to up
*Aug 9 17:34:09.546: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/17, changed state to down
*Aug 9 17:34:11.546: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/17, changed state to up
*Aug 9 17:34:15.134: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/17, changed state to down
*Aug 9 17:34:16.134: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/17, changed state to down
*Aug 9 17:34:19.256: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/17, changed state to up
*Aug 9 17:34:20.256: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/17, changed state to up
*Aug 9 17:34:31.156: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/17, changed state to down
*Aug 9 17:34:32.157: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/17, changed state to down
*Aug 9 17:34:35.454: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/17, changed state to up
*Aug 9 17:34:36.454: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/17, changed state to up
*Aug 9 18:37:00.163: %LINK-5-CHANGED: Interface GigabitEthernet1/0/28, changed state to administratively down
*Aug 9 18:37:01.164: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/28, changed state to down
*Aug 9 18:37:06.935: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/28, changed state to up
*Aug 9 18:37:07.934: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/28, changed state to up
*Aug 9 18:37:09.854: %SYS-5-CONFIG_I: Configured from console by console
*Aug 9 18:39:05.533: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/16, changed state to down
*Aug 9 18:39:06.533: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/16, changed state to down
*Aug 9 18:39:10.744: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/16, changed state to up
*Aug 9 18:39:11.745: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/16, changed state to up
*Aug 9 18:53:03.895: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/16, changed state to down
*Aug 9 18:53:04.893: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/16, changed state to down
*Aug 9 18:54:38.825: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/16, changed state to up
*Aug 9 18:54:39.826: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/16, changed state to up
*Aug 9 18:56:51.263: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/16, changed state to down
*Aug 9 18:56:52.266: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/16, changed state to down
*Aug 9 18:59:05.857: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/16, changed state to up
*Aug 9 18:59:06.855: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/16, changed state to up
*Aug 9 19:02:36.344: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/16, changed state to down
*Aug 9 19:02:37.345: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/16, changed state to down
*Aug 9 19:02:39.557: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/16, changed state to up
*Aug 9 19:02:40.556: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/16, changed state to up
*Aug 9 19:02:51.264: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/16, changed state to down
*Aug 9 19:02:52.264: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/16, changed state to down
*Aug 9 19:02:55.436: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/16, changed state to up
*Aug 9 19:02:56.435: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/16, changed state to up
*Aug 9 19:05:08.645: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/16, changed state to down
*Aug 9 19:05:09.647: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/16, changed state to down
*Aug 9 19:05:19.158: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/16, changed state to up
*Aug 9 19:05:20.154: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/16, changed state to up
*Aug 9 19:05:34.445: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/16, changed state to down
*Aug 9 19:05:35.444: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/16, changed state to down
*Aug 9 19:05:38.574: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/16, changed state to up
*Aug 9 19:05:39.574: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/16, changed state to up
*Aug 9 19:06:41.794: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/16, changed state to down
*Aug 9 19:06:42.793: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/16, changed state to down
*Aug 9 19:06:45.923: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/16, changed state to up
*Aug 9 19:06:46.926: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/16, changed state to up
*Aug 9 19:06:52.024: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/16, changed state to down
*Aug 9 19:06:53.027: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/16, changed state to down
*Aug 9 19:07:05.616: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/16, changed state to up
*Aug 9 19:07:06.617: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/16, changed state to up
*Aug 9 19:07:33.905: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/16, changed state to down
*Aug 9 19:07:34.917: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/16, changed state to down
*Aug 9 19:07:42.646: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/16, changed state to up
*Aug 9 19:07:43.646: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/16, changed state to up
*Aug 9 19:14:57.677: %LINK-5-CHANGED: Interface GigabitEthernet1/0/1, changed state to administratively down
*Aug 9 19:14:58.675: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/1, changed state to down
*Aug 9 19:15:03.577: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/1, changed state to down
*Aug 9 19:15:06.368: %SYS-5-CONFIG_I: Configured from console by vty0 (10.33.53.53)
*Aug 9 19:15:14.095: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/1, changed state to up
*Aug 9 19:15:15.097: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/1, changed state to up
*Aug 9 19:18:01.166: %SYS-5-CONFIG_I: Configured from console by vty0 (10.33.53.53)
*Aug 9 19:21:43.119: %SYS-5-CONFIG_I: Configured from console by vty0 (10.33.53.53)
*Aug 9 19:22:33.684: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/16, changed state to down
*Aug 9 19:22:34.695: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/16, changed state to down
*Aug 9 19:23:25.356: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/16, changed state to up
*Aug 9 19:23:26.354: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/16, changed state to up
*Aug 9 19:23:26.875: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/17, changed state to down
*Aug 9 19:23:28.874: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/17, changed state to up
*Aug 9 19:23:32.465: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/17, changed state to down
*Aug 9 19:23:33.465: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/17, changed state to down
*Aug 9 19:23:36.794: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/17, changed state to up
*Aug 9 19:23:37.795: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/17, changed state to up
*Aug 9 19:23:47.577: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/17, changed state to down
*Aug 9 19:23:48.575: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/17, changed state to down
*Aug 9 19:23:51.707: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/17, changed state to up
*Aug 9 19:23:52.708: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/17, changed state to up
*Aug 9 19:27:07.398: %SYS-5-CONFIG_I: Configured from console by vty0 (10.33.53.53)
*Aug 9 19:27:22.686: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/16, changed state to down
*Aug 9 19:27:23.684: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/16, changed state to down
*Aug 9 19:27:26.757: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/36, changed state to up
*Aug 9 19:27:27.757: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/36, changed state to up
*Aug 9 19:30:49.775: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/36, changed state to down
*Aug 9 19:30:50.773: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/36, changed state to down
*Aug 9 19:30:54.293: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/16, changed state to up
*Aug 9 19:30:55.295: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/16, changed state to up
*Aug 9 19:31:22.405: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/16, changed state to down
*Aug 9 19:31:23.405: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/16, changed state to down
*Aug 9 19:31:27.894: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/36, changed state to up
*Aug 9 19:31:28.894: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/36, changed state to up
*Aug 9 19:31:43.924: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/29, changed state to down
*Aug 9 19:31:47.174: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/29, changed state to down
*Aug 9 19:31:50.344: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/29, changed state to up
*Aug 9 19:31:51.346: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/29, changed state to up
*Aug 9 19:32:03.945: %SYS-5-CONFIG_I: Configured from console by vty0 (10.33.53.53)
*Aug 9 19:39:26.144: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/36, changed state to down
*Aug 9 19:39:27.145: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/36, changed state to down
*Aug 9 19:39:34.865: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/16, changed state to up
*Aug 9 19:39:35.865: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/16, changed state to up
*Aug 9 19:46:45.065: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/15, changed state to down
*Aug 9 19:46:46.064: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/15, changed state to down
*Aug 9 19:46:51.483: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/15, changed state to up
*Aug 9 19:46:52.484: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/15, changed state to up
*Aug 9 19:47:15.406: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/15, changed state to down
*Aug 9 19:47:16.406: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/15, changed state to down
*Aug 9 19:47:19.624: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/15, changed state to up
*Aug 9 19:47:20.624: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/15, changed state to up
*Aug 9 19:49:17.194: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/16, changed state to down
*Aug 9 19:49:18.194: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/16, changed state to down
*Aug 9 19:49:49.134: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/16, changed state to up
*Aug 9 19:49:50.134: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/16, changed state to up
*Aug 9 20:08:52.944: %SYS-5-CONFIG_I: Configured from console by vty0 (10.33.53.53)
*Aug 9 21:12:43.327: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/1, changed state to down
*Aug 9 21:12:44.325: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/1, changed state to down
*Aug 9 21:20:16.214: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/29, changed state to down
*Aug 9 21:20:17.213: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/29, changed state to down
*Aug 9 21:20:19.685: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/29, changed state to up
*Aug 9 21:20:20.687: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/29, changed state to up
*Aug 9 23:12:41.051: %SW_MATM-4-MACFLAP_NOTIF: Host 4439.c45b.74e4 in vlan 11 is flapping between port Po1 and port Gi1/0/11
*Aug 9 23:31:38.274: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/8, changed state to down
*Aug 9 23:31:39.274: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/8, changed state to down
*Aug 9 23:31:42.075: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/8, changed state to up
*Aug 9 23:31:43.077: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/8, changed state to up
*Aug 9 23:44:40.465: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/29, changed state to down
*Aug 9 23:44:41.463: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/29, changed state to down
*Aug 9 23:44:47.147: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/29, changed state to up
*Aug 9 23:44:48.145: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/29, changed state to up
*Aug 9 23:49:58.974: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/29, changed state to down
*Aug 9 23:49:59.984: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/29, changed state to down
*Aug 9 23:50:02.444: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/29, changed state to up
*Aug 9 23:50:03.444: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/29, changed state to up
*Aug 10 03:13:12.702: %SYS-5-CONFIG_I: Configured from console by vty0 (10.90.21.140)
*Aug 10 03:18:13.012: %SYS-5-CONFIG_I: Configured from console by vty0 (10.90.21.140)
*Aug 10 03:20:00.548: %SYS-5-CONFIG_I: Configured from console by vty0 (10.90.21.140)
*Aug 10 03:23:40.602: %SYS-5-CONFIG_I: Configured from console by vty0 (10.90.21.140)
*Aug 10 03:44:43.964: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/29, changed state to down
*Aug 10 03:44:44.966: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/29, changed state to down
*Aug 10 03:44:50.653: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/29, changed state to up
*Aug 10 03:44:51.654: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/29, changed state to up
*Aug 10 03:49:57.424: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/29, changed state to down
*Aug 10 03:49:58.423: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/29, changed state to down
*Aug 10 03:50:00.897: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/29, changed state to up
*Aug 10 03:50:01.897: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/29, changed state to up

anybody know what to do here.

any help will be highly appreciated.

Thanks in advance

Labels:
0 Helpful
2 Replies 2

Leo Laohoo
Hall of Fame
Hall of Fame

‎08-09-2017 10:15 PM

Last input 09:40:52, output never, output hang never

Means the downstream client isn't talking.  

0 Helpful

Julio E. Moisa
VIP Alumni
VIP Alumni

‎08-10-2017 05:55 AM

Hi

Remove the switchport nonegotiate (related to DTP). Usually when DTP is disabled the unknow protocol begins to increase the counter. Switchport nonegotiate is usually configured on trunk interfaces only. 

Hope it is useful

:-)




>> Marcar como útil o contestado, si la respuesta resolvió la duda, esto ayuda a futuras consultas de otros miembros de la comunidad. <<
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