Da 100Mb a 10Mb, Come mai?

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carachi
n00b
Messaggi: 4
Iscritto il: mar 01 giu , 2010 4:50 pm

Ciao a tutti
non sono molto pratico di reti con apparati cisco ma ho da poco preso una rete internet a 100Mb (testato con speedtest). La compagnia telefonica mi ha fornito un router cisco 2800 .

Adesso al router 2800 ho aggiunto un altro router cisco 1760 collegando, alla fastethernet0/0 installata sulla mainboard, un cavo di rete incrociato che arriva dal router 2800.
Al cisco 1760 ho aggiunto anche una porta wic-4esw che reindirizzano il traffico alla rete dell'ufficio.

Ma pultroppo la rete uscente dalla periferica wic-4esw va a 10Mb, sembra quasi limitata manualmente, ma nel running-config non mi ssembra che ci possa essere qualcosa che la limiti.
Ho impostato tutte le porte a 100Mb full-duplex.

Sono le prestazioni del 1760 che non mi permettono di viaggiare a 100Mb ?

Allego parte della configurazione e specifiche tecniche del router

Codice: Seleziona tutto


Current configuration : 1293 bytes
!
version 12.4
.....
ip subnet-zero
....
!
interface FastEthernet0/0
 ip address 192.168.0.1 255.255.255.0
 ip nat outside
 ip virtual-reassembly
 speed 100
 full-duplex
!
interface FastEthernet1/1
 duplex full
 speed 100
!
interface FastEthernet1/2
 duplex full
 speed 100
!
interface FastEthernet1/3
 duplex full
 speed 100
!
interface FastEthernet1/4
 duplex full
 speed 100
!
interface Vlan1
 ip address 192.168.1.254 255.255.255.0
 ip nat inside
 ip virtual-reassembly
!
ip classless
ip route 0.0.0.0 0.0.0.0 192.168.0.254
!
...
ip nat inside source list 120 interface FastEthernet0/0 overload
!
access-list 120 permit ip 192.168.1.0 0.0.0.255 any
!







Router#show ver
Cisco IOS Software, C1700 Software (C1700-ADVSECURITYK9-M), Version 12.4(3), RE)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2005 by Cisco Systems, Inc.
Compiled Fri 22-Jul-05 12:04 by hqluong

...

Cisco 1760 (MPC860P) processor (revision 0x500) with 86982K/11322K bytes of mem.
Processor board ID FOC08190CC9 (3260477220), with hardware revision 0000
MPC860P processor: part number 5, mask 2
1 Ethernet interface
5 FastEthernet interfaces
32K bytes of NVRAM.
32768K bytes of processor board System flash (Read/Write)

Configuration register is 0x2102


Grazie a tutti!
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hashashin
Cisco enlightened user
Messaggi: 125
Iscritto il: sab 22 ott , 2005 7:40 am
Località: Frascati (RM)

Ciao, a me quel "1 Ethernet interface" non convince per nulla. se digiti il comando "show interface" che cosa ti dice dell'interfaccia "incriminata"?
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carachi
n00b
Messaggi: 4
Iscritto il: mar 01 giu , 2010 4:50 pm

hashashin ha scritto:Ciao, a me quel "1 Ethernet interface" non convince per nulla. se digiti il comando "show interface" che cosa ti dice dell'interfaccia "incriminata"?
Ciao hashashin per la tua risposta.
Quella interfaccia ethernet è una vecchia scheda ethernet 10mb che era gia presente all'acquisto del router, ma attualmente non è utilizzata!

Dici che possa essere quella la causa?
Basta stacccarla per vedere la differenza o devo dare qualche comando ?

Faccio una prova staccandola e vedendo cosa succede?


grazie mille
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hashashin
Cisco enlightened user
Messaggi: 125
Iscritto il: sab 22 ott , 2005 7:40 am
Località: Frascati (RM)

Scusami ho letto male io, pensavo che quella fosse l'interfaccia incriminata.
Puoi postare lo "show interface" della interfaccia FastEthernet 0/0?
Almeno vediamo se ci sono degli errori o cose strane.

ciao!
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carachi
n00b
Messaggi: 4
Iscritto il: mar 01 giu , 2010 4:50 pm

hashashin ha scritto:Scusami ho letto male io, pensavo che quella fosse l'interfaccia incriminata.
Puoi postare lo "show interface" della interfaccia FastEthernet 0/0?
Almeno vediamo se ci sono degli errori o cose strane.

ciao!
Certamente

Codice: Seleziona tutto

FastEthernet0/0 is up, line protocol is up 
  Hardware is PQUICC_FEC, address is 000f.24af.4579 (bia 000f.24af.4579)
  Internet address is 192.168.0.1/24
  MTU 1500 bytes, BW 100000 Kbit, 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, 100BaseTX/FX
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 00:00:00, output 00:00:00, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 235000 bits/sec, 24 packets/sec
  5 minute output rate 13000 bits/sec, 20 packets/sec
     1634687 packets input, 2220511936 bytes
     Received 2 broadcasts, 0 runts, 0 giants, 0 throttles
     1300 input errors, 0 CRC, 0 frame, 1300 overrun, 0 ignored
     0 watchdog
     0 input packets with dribble condition detected
     881594 packets output, 83612847 bytes, 0 underruns
     0 output errors, 0 collisions, 3 interface resets
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier
     0 output buffer failures, 0 output buffers swapped out
FastEthernet1/1 is up, line protocol is down 
  Hardware is Fast Ethernet, address is 0013.606a.5ee8 (bia 0013.606a.5ee8)
  MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, 
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Auto-duplex, Auto-speed
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input never, output never, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/75/0/0 (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
     0 packets input, 0 bytes, 0 no buffer
     Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 input packets with dribble condition detected
     0 packets output, 0 bytes, 0 underruns
     0 output errors, 0 collisions, 2 interface resets
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier
     0 output buffer failures, 0 output buffers swapped out
FastEthernet1/2 is up, line protocol is down 
  Hardware is Fast Ethernet, address is 0013.606a.5ee9 (bia 0013.606a.5ee9)
  MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, 
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Auto-duplex, Auto-speed
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input never, output never, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/75/0/0 (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
     0 packets input, 0 bytes, 0 no buffer
     Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 input packets with dribble condition detected
     0 packets output, 0 bytes, 0 underruns
     0 output errors, 0 collisions, 2 interface resets
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier
     0 output buffer failures, 0 output buffers swapped out
FastEthernet1/3 is up, line protocol is up 
  Hardware is Fast Ethernet, address is 0013.606a.5eea (bia 0013.606a.5eea)
  MTU 1500 bytes, BW 100000 Kbit, 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
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input never, output never, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/75/130/0 (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
     24815 packets input, 19519349 bytes, 0 no buffer
     Received 37 broadcasts, 0 runts, 0 giants, 0 throttles
     31 input errors, 31 CRC, 0 frame, 0 overrun, 0 ignored
     0 input packets with dribble condition detected
     33854 packets output, 28158277 bytes, 0 underruns
     0 output errors, 0 collisions, 2 interface resets
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier
     0 output buffer failures, 0 output buffers swapped out
FastEthernet1/4 is up, line protocol is up 
  Hardware is Fast Ethernet, address is 0013.606a.5eeb (bia 0013.606a.5eeb)
  MTU 1500 bytes, BW 100000 Kbit, 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
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input never, output never, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/75/9/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 11000 bits/sec, 16 packets/sec
  5 minute output rate 226000 bits/sec, 20 packets/sec
     877666 packets input, 69544596 bytes, 0 no buffer
     Received 619 broadcasts, 0 runts, 0 giants, 0 throttles
     37 input errors, 21 CRC, 0 frame, 0 overrun, 0 ignored
     0 input packets with dribble condition detected
     1612808 packets output, 2197718332 bytes, 0 underruns
     0 output errors, 0 collisions, 2 interface resets
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier
     0 output buffer failures, 0 output buffers swapped out
Vlan1 is up, line protocol is up 
  Hardware is EtherSVI, address is 000f.24af.4579 (bia 000f.24af.4579)
  Internet address is 192.168.1.254/24
  MTU 1500 bytes, BW 100000 Kbit, DLY 1000000 usec, 
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 00:00:03, output never, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 11000 bits/sec, 17 packets/sec
  5 minute output rate 220000 bits/sec, 19 packets/sec
     881532 packets input, 83739602 bytes, 0 no buffer
     Received 805 broadcasts, 0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     1635410 packets output, 2220889385 bytes, 0 underruns
     0 output errors, 2 interface resets
     0 output buffer failures, 0 output buffers swapped out
NVI0 is up, line protocol is up 
  Hardware is NVI
  MTU 1514 bytes, BW 10000000 Kbit, DLY 0 usec, 
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation UNKNOWN, loopback not set
  Last input never, output never, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  5 minute input rate 0 bits/sec, 0 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
     0 packets input, 0 bytes, 0 no buffer
     Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
     0 packets output, 0 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 output buffer failures, 0 output buffers swapped out
questo è tutto lo show interface!!
Grazie
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hashashin
Cisco enlightened user
Messaggi: 125
Iscritto il: sab 22 ott , 2005 7:40 am
Località: Frascati (RM)

ciao,

sulle interfacce fe 0/0 , fe 1/3 e fe 1/4 ci sono degli errori che sebrano proprio essere causate da problemi fisici. prova a cambiare i cavi.

"1300 input errors, 0 CRC, 0 frame, 1300 overrun, 0 ignored" questa è la riga dello "show interface che devi guardare"

ciao!!!
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carachi
n00b
Messaggi: 4
Iscritto il: mar 01 giu , 2010 4:50 pm

hashashin ha scritto:ciao,

sulle interfacce fe 0/0 , fe 1/3 e fe 1/4 ci sono degli errori che sebrano proprio essere causate da problemi fisici. prova a cambiare i cavi.

"1300 input errors, 0 CRC, 0 frame, 1300 overrun, 0 ignored" questa è la riga dello "show interface che devi guardare"

ciao!!!
Grazie hashashin,
non lo avevo notato! ho provato a cambiare cavi con dei cavi nuovi ma sembra che generi comunque degli errori...
non riesco a spiegarmi da cosa sia dovuto! non mi era mai successo prima d'ora!

Ma questi errori possono essere responsabili di una limitazione di banda?

Grazie mille
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