About L2switch and PC connected to Catalyst2960S with Cate5 (2pair)
Hi,
L2switch and PC are connected to Catalyst2960S with Cate5 (2pair).
NIC of L2switch or PC corresponds to 10/100/1000BASE-T.
2960S,L2switch, and PC are auto negotiation.
Although the connection state of L2switch is linkdown,
the connection state of PC is linkup (100BASE-TX).
Why does L2switch is linkdown?
Regards
hi,
Thanks for your reply.
----Port connected L2Switch ---
Cat2960S#show int gi1/0/15
GigabitEthernet1/0/15 is down, line protocol is down (notconnect)
Hardware is Gigabit Ethernet, address is (bia )
MTU 1500 bytes, BW 10000 Kbit/sec, DLY 1000 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 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 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 0 multicast, 0 pause input
0 input packets with dribble condition detected
0 packets output, 0 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
Cat2960S#
Cat2960S#show run int gi1/0/15
Building configuration...
interface GigabitEthernet1/0/15
end
Cat2960S#
----Port connected PC---
Cat2960S#show int gi1/0/9
GigabitEthernet1/0/9 is up, line protocol is up (connected)
Hardware is Gigabit Ethernet, address is (bia )
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 never, output 00:00:06, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 670
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 5000 bits/sec, 2 packets/sec
4083535 packets input, 835231693 bytes, 0 no buffer
Received 20129 broadcasts (605 multicasts)
0 runts, 0 giants, 0 throttles
1 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 605 multicast, 0 pause input
0 input packets with dribble condition detected
16042859 packets output, 8298142862 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
Cat2960S#
Cat2960S#show run int gi1/0/9
Building configuration...
interface GigabitEthernet1/0/9
end
Cat2960S#
Regards
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