3560 port disconnect

Wiadomość

TmaX · #1

Witam,

moglby ktos podpowiedziec gdzie szukac bledu?
Jest sobie 3560, uplink G0/24 idzie do kienta management sieci. Port G0/23 uzywany jest jako uplink do routera 2901.
Przy podlaczeniu routera do portu G0/23 port G0/24 zmienia status na DOWN.
Co ciekawe, podlaczajac ten sam router do G0/21 wszystko jest OK.
Gdzie moze byc zonk?

Kod: Zaznacz cały

 
interface GigabitEthernet0/21
 description OOB Cisco 2901
 switchport access vlan 2970
 spanning-tree portfast

!
interface GigabitEthernet0/23
 description For 2901 but seems faulty
 switchport access vlan 2970
 spanning-tree portfast
!
interface GigabitEthernet0/24
 description Uplink_To_Customer
 no switchport
 ip address 10.xx0.xx4.x5 255.255.255.248
 standby 200 ip 10.xx0.x4.x7
 standby 200 priority 105
 standby 200 preempt
 standby 200 authentication 12345

=====

interface Vlan2970
 ip address 20.xx4.xx4.2 255.255.255.128
 standby 101 ip 20.xx4.xx4.1
 standby 101 priority 105
 standby 101 preempt
 standby 101 authentication 12345
 standby 101 track 24 decrement 20

JulietCharlie · #2

Rzeczywiscie dziwne.
Probowales restart switcha?

Co ci pokazuje

Kod: Zaznacz cały

show int status

?

Status interfejsow po obu stronach jest up/down czy down/down?
Kable polaczone bezposrednio czy masz jakis skomplikowane okablowanie pomiedzy?

art · #3

kabelek pewnie sprawdziłeś ?

spróbuj coś innego podłączyć do tego portu

TmaX · #4

Switch restartowany, kable ok

gryglas · #5

TmaX pisze:Switch restartowany, kable ok

pokaż:

Kod: Zaznacz cały

show interface GigabitEthernet0/23, GigabitEthernet0/24 i GigabitEthernet0/21

oraz konfiguracje portu routera

TmaX · #6

Kod: Zaznacz cały

GigabitEthernet0/21 is up, line protocol is up (connected) 
  Hardware is Gigabit Ethernet, address is 4c4e.35c8.9d95 (bia 4c4e.35c8.9d95)
  Description: OOB Cisco 2901
  MTU 9198 bytes, BW 1000000 Kbit/sec, DLY 10 usec, 
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Full-duplex, 1000Mb/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 00:00:59, output 00:00:05, 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 2000 bits/sec, 2 packets/sec
     915 packets input, 108177 bytes, 0 no buffer
     Received 89 broadcasts (68 multicasts)
     0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog, 68 multicast, 0 pause input
     0 input packets with dribble condition detected
     9541 packets output, 863219 bytes, 0 underruns
     0 output errors, 0 collisions, 1 interface resets
     0 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

GigabitEthernet0/23 is down, line protocol is down (notconnect) 
  Hardware is Gigabit Ethernet, address is 4c4e.35c8.9d97 (bia 4c4e.35c8.9d97)
  Description: For 2901 but seems faulty
  MTU 9198 bytes, BW 1000000 Kbit/sec, DLY 10 usec, 
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Auto-duplex, Auto-speed, 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 00:38:38, output 00:38:13, 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
     275 packets input, 31448 bytes, 0 no buffer
     Received 137 broadcasts (34 multicasts)
     0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog, 34 multicast, 0 pause input
     0 input packets with dribble condition detected
     3749 packets output, 346593 bytes, 0 underruns
     0 output errors, 0 collisions, 1 interface resets
     0 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
	 
GigabitEthernet0/24 is up, line protocol is up (connected) 
  Hardware is Gigabit Ethernet, address is 4c4e.35c8.9dc1 (bia 4c4e.35c8.9dc1)
  Description: Uplink_To_Customer
  Internet address is 10.xx0.xx4.x5/29
  MTU 9198 bytes, BW 1000000 Kbit/sec, DLY 10 usec, 
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Full-duplex, 1000Mb/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 00:00:00, output 00:00:02, 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 1000 bits/sec, 1 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
     3170013 packets input, 281914398 bytes, 0 no buffer
     Received 2868127 broadcasts (0 IP multicasts)
     0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog, 2868125 multicast, 0 pause input
     0 input packets with dribble condition detected
     963201 packets output, 294126535 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 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

GigabitEthernet0/23 is down obecnie, poniewaz kabel jes podpiety pod 0/21

konny · #7

Sprobuj ustawic duplex i speed recznie na interfacie moze wtedy zaskoczy

JulietCharlie · #8

Podejrzewam zwarcie pomiedzy portami 23 i 24 w wewnatrz switcha. Dzisiaj z ciekawosci otworze u siebie labowego 3560 i zobacze jak to moze wygladac. Dam znac jutro.

JulietCharlie · #9

Otworzylem labowego WS-C3560-48PS-S i oto spostrzezenia:

1) polaczen elektrycznych gniazd ethernet nie widac bo wszystko osloniete blacha,
2) Na plycie ewidentnie widac symetrycznie umieszczone kostki z napisami: Bel 0451 LFB S558-5500-16 i jest ich uwaga! dokladnie 24, czyli jedna kostka przypada na 2 porty

Czyli sa elementy opowiadajace za 2 porty i imho tam moze czaic sie blad.
Nie doszukiwal bym sie bledow w configu, STP - tylko uszkodzenia jednego z elementow.
Sprawdz ewentualnie czy wtyki nie sa uszkodzone bo ze soba sasiaduje.

Moim zdaniem nadaje sie to do zgloszenia do cisco => gwarancja.

P.S.
Przy okazji zauwazylem ze kilka kondensatorow w switchu spuchlo, wiec gdybym mial jakies problemy ze switchem to ... bede mial podejrzanego. A ze to wersja labowa to sie nie przejmuje.

TmaX · #10

JulietCharlie pisze:Moim zdaniem nadaje sie to do zgloszenia do cisco => gwarancja.

To jest swieza implementacja, sprzet prosto od dystrybutora, ale i tu babol moze byc.
Zwlaszcza ze bardzo podobna implementacja robiona kilka dni pozniej nie zwracala zadnych bledow. Poki co podpowiedzialem klientowi zamiane konfigow miedzy portami G/23 i G0/24 i czekam na odpowiedz...

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