I have a cisco 3750G PoE switch. I am trying to connect the switch to cisco 881 router (it is the provider router). I am connecting it on the lan interface (switch module), but the problem that I am facing right now is that the port on the switch 3750 shows as notconnect. I tried the same cable by connecting it to other device and it worked fine so I know that the cable is not an issue. I am stumped with this thing and any help on this would be really appreciated.
Config on the switch:
description Cable Modem
switchport access vlan 170
switchport mode access
mls qos trust dscp
no cdp enable
Esd0086#show int g1/0/24
GigabitEthernet1/0/24 is down, line protocol is down (notconnect)
Hardware is Gigabit Ethernet, address is 0026.0a4e.9f98 (bia 0026.0a4e.9f98)
Description: Alliant Cable Modem (4848)
MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
reliability 252/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Auto-duplex, 10Mb/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 02:14:19, output 02:14:21, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Forgot to mention that on the cisco 881, we have one interface on the switch module that is connected to the switch and is up and running with the speed of 10; so that is the reason I did configure speed 10 on it. I even changed the config to speed auto; but it did not help.
Contact the service provider and see if they can help you...the switchport itself is showing down/down which technically means it's a physical problem. Since you tested the cable with another device and it came up, did you also test this device on a different port with the same cable? Try without a vlan attached to the port and see if that makes a difference....
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