02-24-2012 06:49 AM - edited 03-07-2019 05:09 AM
Hi everybody,
I have a problem connecting a PC in a TwinGig Convertors (GLC-LH-SM). I want to connect a PC with a fiber cable on the supervisor WS-X45-SUP6L-E of my Switch 4500E.
The default configuration mode is X2. As I want to deploy Gigabit interfaces (that is, use TwinGig Convertors), then I configured the associated port-group:
Switch(config)#hw-module module 1 port-group 2 select gigabitethernet
*Feb 24 06:18:37.125: Port Te1/2: TwinGig Converter inserted: vendor: CISCO
Switch(config)#do sh int status mod 1
Port Name Status Vlan Duplex Speed Type
Te1/1 inactive 1 full 10G No X2
Te1/2 inactive 1 full 10G No X2
Gi1/3 Conexion trunk con connected trunk full 1000 1000BaseLH
Gi1/4 notconnect 1 full 1000 1000BaseLH
Gi1/5 notconnect 1 full 1000 No Gbic
Gi1/6 notconnect 1 full 1000 No Gbic
*Feb 24 06:30:50.481: %C4K_IOSINTF-5-TRANSCEIVERINSERTED: Slot=1 Port=5: Transceiver has been inserted
CP_VALENCIA_JAB(config)#do sh int status mod 1
Port Name Status Vlan Duplex Speed Type
Te1/1 inactive 1 full 10G No X2
Te1/2 inactive 1 full 10G No X2
Gi1/3 Conexion trunk con connected trunk full 1000 1000BaseLH
Gi1/4 notconnect 1 full 1000 1000BaseLH
Gi1/5 notconnect 1 full 1000 1000BaseLH
Gi1/6 notconnect 1 full 1000 No Gbic
Switch#sh hw-module module port-group
Module Port-group Active Inactive
-------------------------------------------------------------
1 1 Gi1/3-4 Te1/1
1 2 Gi1/5-6 Te1/2
2 COMMAND NOT SUPPORTED
3 COMMAND NOT SUPPORTED
Swicth(config)#do sh int giga 1/4
GigabitEthernet1/4 is down, line protocol is down (notconnect)
Hardware is Gigabit Ethernet Port, address is 0007.7d4d.9903 (bia 0007.7d4d.9903)
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, Auto-speed, link type is auto, media type is 1000BaseLH
input flow-control is off, output flow-control is off
ARP type: ARPA, ARP Timeout 04:00:00
Last input 1w5d, output never, output hang never
Last clearing of "show interface" counters never
Input queue: 0/2000/0/0 (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
100 packets input, 12180 bytes, 0 no buffer
Received 96 broadcasts (89 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 input packets with dribble condition detected
20 packets output, 4986 bytes, 0 underruns
!
!
no aaa new-model
hw-module module 1 port-group 1 select gigabitethernet
hw-module module 1 port-group 2 select gigabitethernet
ip subnet-zero
ip vrf mgmtVrf
!
!
!
!
power redundancy-mode redundant
!
!
!
spanning-tree mode pvst
spanning-tree extend system-id
!
vlan internal allocation policy ascending
!
!
!
interface FastEthernet1
ip vrf forwarding mgmtVrf
no ip address
speed auto
duplex auto
!
interface TenGigabitEthernet1/1
!
interface TenGigabitEthernet1/2
!
interface GigabitEthernet1/3
description Conexion trunk con SW CORE VAL
switchport mode trunk
!
interface GigabitEthernet1/4
switchport mode trunk
!
interface GigabitEthernet1/5
switchport mode trunk
I noted that the Swicth set up automatically 'switchport mode trunk', so i put the command 'swicthport mode access' because i want to connect only a PC. But the status is the same, I can not achieve connectivity.
Please can´t anybody help me with this, i just want to know how connect a PC in the interface GigabitEthernet1/4 of the supervisor engine of my Switch.
Please feel free to ask me any additional information you need.
Thank you very much for your comments,
Best regards,
Solved! Go to Solution.
02-24-2012 09:29 AM
Hi,
A couple things you can do to further troubleshot;
Usually (not always) the color of a SM fiber patch cord is Yellow and MM is Orange.
Some times on the cable itself, it says MM or SM.
If it is SM, the next thing you can do is swap the fiber strands and test again. With LC type connectors it is hard but possible.
HTH
02-24-2012 08:22 AM
Hi,
According to your output (GigabitEthernet1/4 is down, line protocol is down (notconnect)) this is a lyer-1 issue.
Since your SFP is Single-mode (GLC-LH-SM) is you fiber also SM? If yes, do you have another SM SFP to test with?
HTH
02-24-2012 09:18 AM
Hi Reza,
Well I guess that the fiber is SM.
I have temporarily connected the PC to another device that is not cisco and I can achieve connectivity. So I guess that is something wrong with the 4500. However how can I see if the Fiber is SM.
Can you tell me what to do and set on the switch to achieve connectivity with the PC. The commands that are configured on the switch are right?
Thank's
Regards,
02-24-2012 09:29 AM
Hi,
A couple things you can do to further troubleshot;
Usually (not always) the color of a SM fiber patch cord is Yellow and MM is Orange.
Some times on the cable itself, it says MM or SM.
If it is SM, the next thing you can do is swap the fiber strands and test again. With LC type connectors it is hard but possible.
HTH
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