Cortes Zyxel 660HW-D1

Hola,

tengo ADSL 10 MB con movistar desde hace un mes. Estoy experimentando microcortes por temporadas, cuando los hay cada 15 min. o 30 min.

Al principio tenia un router Comtrend CT-5365 pero el técnico de Telefónica me puso un Zyxel 660HW-D1 ya que mejoraba la atenuación y el ruido, pero sigo sufriendo los odiosos cortes.
Los valores de la linia son los siguientes:

ZyNOS F/W Version: V3.40(AHF.0)b16 | 04/16/2009
DSL FW Version:TI AR7 06.02.00.7b
Standard:ADSL2PLUS

noise margin upstream: 17 db
output power downstream: 23 db
attenuation upstream: 11 db

noise margin downstream: 18 db
output power upstream: 12 db
attenuation downstream: 27 db

Upstream Speed: 796 kbps Downstream Speed: 9995 kbps

Destacar que toda la acometida (entre domicilio y caja de pares) es totalmente nueva. Hablando con el técnico que me cambió el router me dijo que si seguia sufriendo microcortes la solución eran pasarme a 6 MB.

Estoy un poco cansado de esta situación. ¿puedo hacer alguna prueba más para evitar que me bajen la velocidad?
 
Pues tu margen snr es muy muy bueno, prueba a mirar el margen cada 20 minutos y mira si te varía o te va siempre igual.
 
Como dice Javicelta, no tienes valores como para que se te corte el ADSL. Estás perdiendo realmente sincronización del ADSL o se te corta la sesión PPP? Qué ocurre exactamente con las luces DSL / PPP / Internet en el momento del corte?
 
Os paso el log de cuando tenia el Comtrend conectado. Yo creo que es algún problema de la sesión PPP:

System Log
Date/Time Facility Severity Message
Sep 24 08:46:25 user debug syslog: iptables -t nat -D PREROUTING -i br0 -p udp --dport 5060 -j REDIRECT --to-ports 5060 2>/dev/null
Sep 24 08:46:25 user debug syslog: iptables -I INPUT 1 -i ppp_8_32_1 -p udp --dport 5060 -j ACCEPT 2>/dev/null
Sep 24 08:46:25 user debug syslog: iptables -I INPUT 1 -i ppp_8_32_1 -p udp --dport 7070:7079 -j ACCEPT 2>/dev/null
Sep 24 08:46:25 user debug syslog: iptables -t nat -A PREROUTING -i br0 -p udp --dport 5060 -j REDIRECT --to-ports 5060 2>/dev/null
Sep 24 08:46:25 user debug syslog: siproxd --config /var/siproxd/siproxd.conf &
Sep 24 08:46:25 user notice syslog: siproxd.c:192 INFO:siproxd-0.5.10-2876 i686-redhat-linux-gnu starting up
Sep 24 08:46:25 user notice syslog: siproxd.c:218 INFO:daemonized, pid=3719
Sep 24 08:46:25 user notice dnsprobe[838]: Switching Back To Primary DNS server
Sep 24 08:46:26 user debug syslog: tc qdisc del dev ppp_8_32_1 root 2>/dev/null^I^I^I^I^I^I^I^I^I
Sep 24 08:46:26 user notice syslog: sock.c:65 INFO:bound to port 5060
Sep 24 08:46:26 user notice syslog: register.c:65 WARNING:registration file not found, starting with empty table
Sep 24 08:46:26 user notice syslog: siproxd.c:265 INFO:siproxd-0.5.10-2876 i686-redhat-linux-gnu started
Sep 24 08:46:27 user debug syslog: tc qdisc add dev ppp_8_32_1 root handle 1: prio^I^I^I^I^I^I^I^I
Sep 24 08:46:27 user debug syslog: tc qdisc add dev ppp_8_32_1 parent 1:1 handle 10: htb default 1^I^I^I^I^I
Sep 24 08:46:27 user info kernel: HTB init, kernel part version 3.17
Sep 24 08:46:27 user debug syslog: tc qdisc add dev ppp_8_32_1 parent 1:2 handle 20: sfq^I^I^I^I^I^I^I
Sep 24 08:46:27 user debug syslog: tc qdisc add dev ppp_8_32_1 parent 1:3 handle 30: sfq^I^I^I^I^I^I^I
Sep 24 08:46:28 user debug syslog: tc class add dev ppp_8_32_1 parent 10: classid 10:1 htb rate 58Kbps ceil 58Kbps^I
Sep 24 08:46:28 user debug syslog: tc qdisc add dev ppp_8_32_1 parent 10:1 handle 1000: sfq^I^I^I^I^I^I
Sep 24 08:46:28 user debug syslog: tc filter add dev ppp_8_32_1 parent 1:0 prio 8 protocol ip handle 3 fw flowid 1:1^I^I
Sep 24 08:46:28 user debug syslog: tc filter add dev ppp_8_32_1 parent 1:0 prio 8 protocol ip handle 2 fw flowid 1:2^I^I
Sep 24 08:46:28 user debug syslog: tc filter add dev ppp_8_32_1 parent 1:0 prio 8 protocol ip handle 1 fw flowid 1:3^I^I
Sep 24 08:46:28 daemon debug user: dns_lookup(main.acs.telefonica.es) = 0.0.0.0
Sep 24 08:46:28 daemon err user: ACS Connect Failed: Could not resolve host main.acs.telefonica.es
Sep 24 09:23:42 user warn dnsprobe[838]: dns query failed
Sep 24 09:23:42 user crit kernel: ADSL link down
Sep 24 09:23:44 user warn dnsprobe[838]: dns query failed
Sep 24 09:23:45 daemon crit pppd[619]: Clear IP addresses. Connection DOWN.
Sep 24 09:23:45 daemon crit pppd[619]: Clear IP addresses. PPP connection DOWN.
Sep 24 09:23:46 user warn dnsprobe[838]: dns query failed
Sep 24 09:23:46 user notice dnsprobe[838]: Primary DNS server Is Down... Switching To Secondary DNS server
Sep 24 09:23:49 user crit kernel: xDSL G.994 training
Sep 24 09:23:59 user crit kernel: ADSL G.992 started
Sep 24 09:24:04 user crit kernel: ADSL G.992 channel analysis
Sep 24 09:24:10 user crit kernel: ADSL G.992 message exchange
Sep 24 09:24:10 user crit kernel: ADSL link up, Path 0, us=625, ds=7920
Sep 24 09:24:11 user debug syslog: iptables -t nat -A PREROUTING -i br0 -d 192.168.2.1 -p udp --dport 53 -j DNAT --to 128.9.0.107
Sep 24 09:24:12 daemon notice pppd[619]: PPP: Start to connect ...
Sep 24 09:24:18 user warn dnsprobe[838]: dns query failed
Sep 24 09:24:20 user warn dnsprobe[838]: dns query failed
Sep 24 09:24:22 user warn dnsprobe[838]: dns query failed
Sep 24 09:24:26 daemon notice pppd[619]: PPP: Start to connect ...
Sep 24 09:24:40 daemon notice pppd[619]: PPP: Start to connect ...
Sep 24 09:24:40 daemon crit pppd[619]: PPP server detected.
Sep 24 09:24:40 daemon crit pppd[619]: PPP session established.
Sep 24 09:24:42 daemon crit pppd[619]: PPP LCP UP.
Sep 24 09:24:42 daemon crit pppd[619]: Received valid IP address from server. Connection UP.
Sep 24 09:24:42 user debug syslog: iptables -I INPUT -i ppp_8_32_1 -p tcp --dport 21 -j DROP
Sep 24 09:24:42 user debug syslog: iptables -I INPUT -i ppp_8_32_1 -p tcp --dport 80 -j DROP
Sep 24 09:24:42 user debug syslog: iptables -I INPUT -i ppp_8_32_1 -p tcp --dport 22 -j DROP
Sep 24 09:24:42 user debug syslog: iptables -I INPUT -i ppp_8_32_1 -p tcp --dport 23 -j DROP
Sep 24 09:24:42 user debug syslog: route add default gw 192.168.153.1 2>/dev/null
Sep 24 09:24:42 user debug syslog: iptables -A FORWARD -o ppp_8_32_1 -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu
Sep 24 09:24:42 user debug syslog: iptables -A FORWARD -i ppp_8_32_1 -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu
Sep 24 09:24:42 user debug syslog: ifconfig br0 mtu 1492
Sep 24 09:24:42 user debug syslog: echo > /proc/net/ip_conntrack
Sep 24 09:24:42 user debug syslog: echo "1000" > /proc/sys/net/ipv4/ip_conntrack_max
Sep 24 09:24:42 user debug syslog: iptables -t nat -D PREROUTING -i br0 -d 192.168.2.1 -p udp --dport 53 -j DNAT --to 128.9.0.107 2>/dev/null
Sep 24 09:24:43 user debug syslog: iptables -t nat -D POSTROUTING -o ppp_8_32_1 -s 192.168.2.0/255.255.255.0 -j MASQUERADE 2>/dev/null
Sep 24 09:24:43 user debug syslog: iptables -t nat -A POSTROUTING -o ppp_8_32_1 -s 192.168.2.0/255.255.255.0 -j MASQUERADE
Sep 24 09:24:43 user debug syslog: iptables -t nat -D PREROUTING -i br0 -d 192.168.2.1 -p udp --dport 53 -j DNAT --to 8.8.8.8 2>/dev/null
Sep 24 09:24:43 user debug syslog: iptables -t nat -A PREROUTING -i br0 -d 192.168.2.1 -p udp --dport 53 -j DNAT --to 8.8.8.8
Sep 24 09:24:43 user debug syslog: kill -9 3719
Sep 24 09:24:53 user debug syslog: iptables -D INPUT -i ppp_8_32_1 -p udp --dport 5060 -j ACCEPT 2>/dev/null
Sep 24 09:24:53 user debug syslog: iptables -D INPUT -i ppp_8_32_1 -p udp --dport 7070:7079 -j ACCEPT 2>/dev/null
Sep 24 09:24:53 user debug syslog: iptables -t nat -D PREROUTING -i br0 -p udp --dport 5060 -j REDIRECT --to-ports 5060 2>/dev/null
Sep 24 09:24:53 user debug syslog: iptables -I INPUT 1 -i ppp_8_32_1 -p udp --dport 5060 -j ACCEPT 2>/dev/null
Sep 24 09:24:53 user debug syslog: iptables -I INPUT 1 -i ppp_8_32_1 -p udp --dport 7070:7079 -j ACCEPT 2>/dev/null
Sep 24 09:24:53 user debug syslog: iptables -t nat -A PREROUTING -i br0 -p udp --dport 5060 -j REDIRECT --to-ports 5060 2>/dev/null
Sep 24 09:24:53 user notice dnsprobe[838]: Switching Back To Primary DNS server
Sep 24 09:24:53 user debug syslog: siproxd --config /var/siproxd/siproxd.conf &
Sep 24 09:24:54 user notice syslog: siproxd.c:192 INFO:siproxd-0.5.10-2876 i686-redhat-linux-gnu starting up
Sep 24 09:24:54 user notice syslog: siproxd.c:218 INFO:daemonized, pid=4187
Sep 24 09:24:54 user notice syslog: sock.c:65 INFO:bound to port 5060
Sep 24 09:24:54 user notice syslog: register.c:65 WARNING:registration file not found, starting with empty table
Sep 24 09:24:54 user notice syslog: siproxd.c:265 INFO:siproxd-0.5.10-2876 i686-redhat-linux-gnu started
Sep 24 09:24:54 user debug syslog: tc qdisc del dev ppp_8_32_1 root 2>/dev/null^I^I^I^I^I^I^I^I^I
Sep 24 09:24:55 user debug syslog: tc qdisc add dev ppp_8_32_1 root handle 1: prio^I^I^I^I^I^I^I^I
Sep 24 09:24:56 user debug syslog: tc qdisc add dev ppp_8_32_1 parent 1:1 handle 10: htb default 1^I^I^I^I^I
Sep 24 09:24:56 user info kernel: HTB init, kernel part version 3.17
Sep 24 09:24:56 user debug syslog: tc qdisc add dev ppp_8_32_1 parent 1:2 handle 20: sfq^I^I^I^I^I^I^I
Sep 24 09:24:56 user debug syslog: tc qdisc add dev ppp_8_32_1 parent 1:3 handle 30: sfq^I^I^I^I^I^I^I
Sep 24 09:24:56 user debug syslog: tc class add dev ppp_8_32_1 parent 10: classid 10:1 htb rate 57Kbps ceil 57Kbps^I
Sep 24 09:24:56 user debug syslog: tc qdisc add dev ppp_8_32_1 parent 10:1 handle 1000: sfq^I^I^I^I^I^I
Sep 24 09:24:56 user debug syslog: tc filter add dev ppp_8_32_1 parent 1:0 prio 8 protocol ip handle 3 fw flowid 1:1^I^I
Sep 24 09:24:56 user debug syslog: tc filter add dev ppp_8_32_1 parent 1:0 prio 8 protocol ip handle 2 fw flowid 1:2^I^I
Sep 24 09:24:56 user debug syslog: tc filter add dev ppp_8_32_1 parent 1:0 prio 8 protocol ip handle 1 fw flowid 1:3^I^I
Sep 24 09:24:57 daemon debug user: dns_lookup(main.acs.telefonica.es) = 0.0.0.0
Sep 24 09:24:57 daemon err user: ACS Connect Failed: Could not resolve host main.acs.telefonica.es
Sep 24 09:25:03 syslog info -- MARK --
Sep 24 10:25:03 syslog info -- MARK --
Sep 24 10:28:29 user warn dnsprobe[838]: dns query failed
Sep 24 10:29:32 user crit kernel: ADSL link down
Sep 24 10:29:33 user warn dnsprobe[838]: dns query failed
Sep 24 10:29:35 daemon crit pppd[619]: Clear IP addresses. Connection DOWN.
Sep 24 10:29:35 daemon crit pppd[619]: Clear IP addresses. PPP connection DOWN.
Sep 24 10:29:35 user warn dnsprobe[838]: dns query failed
Sep 24 10:29:37 user warn dnsprobe[838]: dns query failed
Sep 24 10:29:37 user notice dnsprobe[838]: Primary DNS server Is Down... Switching To Secondary DNS server
Sep 24 10:29:39 user crit kernel: xDSL G.994 training
Sep 24 10:29:49 user crit kernel: ADSL G.992 started
Sep 24 10:29:53 user crit kernel: ADSL G.992 channel analysis
Sep 24 10:30:00 user crit kernel: ADSL link up, Path 0, us=640, ds=8080
Sep 24 10:30:01 user debug syslog: iptables -t nat -A PREROUTING -i br0 -d 192.168.2.1 -p udp --dport 53 -j DNAT --to 128.9.0.107
Sep 24 10:30:02 daemon notice pppd[619]: PPP: Start to connect ...
Sep 24 10:30:10 user warn dnsprobe[838]: dns query failed
Sep 24 10:30:12 user warn dnsprobe[838]: dns query failed
Sep 24 10:30:14 user warn dnsprobe[838]: dns query failed
Sep 24 10:30:16 daemon notice pppd[619]: PPP: Start to connect ...
Sep 24 10:30:30 daemon notice pppd[619]: PPP: Start to connect ...
Sep 24 10:30:30 daemon crit pppd[619]: PPP server detected.
Sep 24 10:30:30 daemon crit pppd[619]: PPP session established.
Sep 24 10:30:32 daemon crit pppd[619]: PPP LCP UP.
Sep 24 10:30:32 user debug syslog: iptables -I INPUT -i ppp_8_32_1 -p tcp --dport 21 -j DROP
Sep 24 10:30:32 daemon crit pppd[619]: Received valid IP address from server. Connection UP.
Sep 24 10:30:32 user debug syslog: iptables -I INPUT -i ppp_8_32_1 -p tcp --dport 80 -j DROP
Sep 24 10:30:32 user debug syslog: iptables -I INPUT -i ppp_8_32_1 -p tcp --dport 22 -j DROP
Sep 24 10:30:32 user debug syslog: iptables -I INPUT -i ppp_8_32_1 -p tcp --dport 23 -j DROP
Sep 24 10:30:32 user debug syslog: route add default gw 192.168.153.1 2>/dev/null
Sep 24 10:30:32 user debug syslog: iptables -A FORWARD -o ppp_8_32_1 -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu
Sep 24 10:30:33 user debug syslog: iptables -A FORWARD -i ppp_8_32_1 -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu
Sep 24 10:30:33 user debug syslog: ifconfig br0 mtu 1492
Sep 24 10:30:33 user debug syslog: echo > /proc/net/ip_conntrack
Sep 24 10:30:33 user debug syslog: echo "1000" > /proc/sys/net/ipv4/ip_conntrack_max
Sep 24 10:30:33 user debug syslog: iptables -t nat -D PREROUTING -i br0 -d 192.168.2.1 -p udp --dport 53 -j DNAT --to 128.9.0.107 2>/dev/null
Sep 24 10:30:33 user debug syslog: iptables -t nat -D POSTROUTING -o ppp_8_32_1 -s 192.168.2.0/255.255.255.0 -j MASQUERADE 2>/dev/null
Sep 24 10:30:33 user debug syslog: iptables -t nat -A POSTROUTING -o ppp_8_32_1 -s 192.168.2.0/255.255.255.0 -j MASQUERADE
Sep 24 10:30:33 user debug syslog: iptables -t nat -D PREROUTING -i br0 -d 192.168.2.1 -p udp --dport 53 -j DNAT --to 8.8.8.8 2>/dev/null
Sep 24 10:30:33 user debug syslog: iptables -t nat -A PREROUTING -i br0 -d 192.168.2.1 -p udp --dport 53 -j DNAT --to 8.8.8.8
Sep 24 10:30:33 user debug syslog: kill -9 4187
Sep 24 10:30:43 user debug syslog: iptables -D INPUT -i ppp_8_32_1 -p udp --dport 5060 -j ACCEPT 2>/dev/null
Sep 24 10:30:43 user debug syslog: iptables -D INPUT -i ppp_8_32_1 -p udp --dport 7070:7079 -j ACCEPT 2>/dev/null
Sep 24 10:30:43 user debug syslog: iptables -t nat -D PREROUTING -i br0 -p udp --dport 5060 -j REDIRECT --to-ports 5060 2>/dev/null
Sep 24 10:30:43 user debug syslog: iptables -I INPUT 1 -i ppp_8_32_1 -p udp --dport 5060 -j ACCEPT 2>/dev/null
Sep 24 10:30:43 user debug syslog: iptables -I INPUT 1 -i ppp_8_32_1 -p udp --dport 7070:7079 -j ACCEPT 2>/dev/null
Sep 24 10:30:43 user debug syslog: iptables -t nat -A PREROUTING -i br0 -p udp --dport 5060 -j REDIRECT --to-ports 5060 2>/dev/null
Sep 24 10:30:43 user debug syslog: siproxd --config /var/siproxd/siproxd.conf &
Sep 24 10:30:43 user notice syslog: siproxd.c:192 INFO:siproxd-0.5.10-2876 i686-redhat-linux-gnu starting up
Sep 24 10:30:43 user notice syslog: siproxd.c:218 INFO:daemonized, pid=4527
Sep 24 10:30:44 user notice syslog: sock.c:65 INFO:bound to port 5060
Sep 24 10:30:44 user notice syslog: register.c:65 WARNING:registration file not found, starting with empty table
Sep 24 10:30:44 user notice syslog: siproxd.c:265 INFO:siproxd-0.5.10-2876 i686-redhat-linux-gnu started
Sep 24 10:30:44 user debug syslog: tc qdisc del dev ppp_8_32_1 root 2>/dev/null^I^I^I^I^I^I^I^I^I
Sep 24 10:30:45 user notice dnsprobe[838]: Switching Back To Primary DNS server
Sep 24 10:30:45 user debug syslog: tc qdisc add dev ppp_8_32_1 root handle 1: prio^I^I^I^I^I^I^I^I
Sep 24 10:30:46 user debug syslog: tc qdisc add dev ppp_8_32_1 parent 1:1 handle 10: htb default 1^I^I^I^I^I
Sep 24 10:30:46 user info kernel: HTB init, kernel part version 3.17
Sep 24 10:30:46 user debug syslog: tc qdisc add dev ppp_8_32_1 parent 1:2 handle 20: sfq^I^I^I^I^I^I^I
Sep 24 10:30:46 user debug syslog: tc qdisc add dev ppp_8_32_1 parent 1:3 handle 30: sfq^I^I^I^I^I^I^I
Sep 24 10:30:46 user debug syslog: tc class add dev ppp_8_32_1 parent 10: classid 10:1 htb rate 58Kbps ceil 58Kbps^I
Sep 24 10:30:46 user debug syslog: tc qdisc add dev ppp_8_32_1 parent 10:1 handle 1000: sfq^I^I^I^I^I^I
Sep 24 10:30:46 user debug syslog: tc filter add dev ppp_8_32_1 parent 1:0 prio 8 protocol ip handle 3 fw flowid 1:1^I^I
Sep 24 10:30:46 user debug syslog: tc filter add dev ppp_8_32_1 parent 1:0 prio 8 protocol ip handle 2 fw flowid 1:2^I^I
Sep 24 10:30:46 user debug syslog: tc filter add dev ppp_8_32_1 parent 1:0 prio 8 protocol ip handle 1 fw flowid 1:3^I^I
Sep 24 10:30:47 daemon debug user: dns_lookup(main.acs.telefonica.es) = 0.0.0.0
Sep 24 10:30:47 daemon err user: ACS Connect Failed: Could not resolve host main.acs.telefonica.es
 
Se te corta el ADSL por algún motivo. Tienes un corte en 10:29:32 y otro en 9:23:42.
Tiene que ser algún problema intermitente pero severo para que se te corte con esos valores. Puede ser cuando llaman por teléfono o te llaman, con algún microfiltro o teléfono en mal estado, conexión floja o sucia, excesivo calentamiento del modem, etc.

Slds.
 
Por ahora he cambiado el microfiltro y puenteado el PTR.

Me aparecen los siguientes mensajes en log, ¿a qué se deben?

1 10/07/2010 20:43:48 board 0 line 0 channel 1, call 42, C01 Outgoing Call dev=6 ch=1 CALL DETAIL RECORD
2 10/07/2010 20:43:15 board 0 line 0 channel 1, call 41, C01 Outgoing Call dev=6 ch=1 CALL DETAIL RECORD
3 10/07/2010 20:42:42 board 0 line 0 channel 1, call 40, C01 Outgoing Call dev=6 ch=1 CALL DETAIL RECORD
4 10/07/2010 20:42:09 board 0 line 0 channel 1, call 39, C01 Outgoing Call dev=6 ch=1 CALL DETAIL RECORD
5 10/07/2010 20:41:36 board 0 line 0 channel 1, call 38, C01 Outgoing Call dev=6 ch=1 CALL DETAIL RECORD
6 10/07/2010 20:41:03 board 0 line 0 channel 1, call 37, C01 Outgoing Call dev=6 ch=1 CALL DETAIL RECORD
7 10/07/2010 20:40:30 board 0 line 0 channel 1, call 36, C01 Outgoing Call dev=6 ch=1 CALL DETAIL RECORD
8 10/07/2010 20:39:57 board 0 line 0 channel 1, call 35, C01 Outgoing Call dev=6 ch=1 CALL DETAIL RECORD
9 10/07/2010 20:39:24 board 0 line 0 channel 1, call 34, C01 Outgoing Call dev=6 ch=1 CALL DETAIL RECORD
 
Pero esto me sale en log estando conectado correctamente (almenos la 1-PPPoE). ¿es posible que estos mensajes del log sea pq hay una 2-PPPoE? ¿cómo pueda quitar la conexión 2-PPPoE?

Muchas gracias
 
Es posible que tengas activado un 2do. nodo remoto, como se usa en Imagenio. Muéstranos una captura del menú 11 de Telnet.
Slds.
 
Menu 11 - Remote Node Setup

1. MyISP (ISP, SUA)
2. MyISP2 (SUA)

¿cuál elimino? ¿la 2? ¿cómo lo hago?
 
En el menú 11 escribes 2, con Enter vas a la configuración del nodo, te mueves con la flecha de bajar hasta Active y lo cambias con la Barra Espaciadora a No. Luego "subes" con la flecha de subir hasta "abajo" y das Enter para salir. Luego en el menú 11, el nodo 2 debe tener un "-" guión delante de su nombre.

Slds.
 
Decir que finalmente el problema se solucionó puenteando el PTR. Y eso que la instalación de la línea (y también el PTR) era de hace un mes.

Por si alguien le sirve en el futuro.
 
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