The fibre Gigabit Uplink port is in the down state even after I gave no shutdown command at the interface GigabitEthernet1/1/3

Hi

We have 2 CISCO 3750 switches and LACP is implemented on these core switches. Due to looping in the network the Fibre uplink ports GigabitEthernet1/1/3 and GigabitEthernet2/1/3 are down (I think these uplink ports are mirrored in the LACP concept)
 
Please see below from the configuration.
I logged into the core switch and went to this particular interface GigabitEthernet1/1/3 and I gave the following command and still the port is in the down state after I gave no shutdown command. Do I need to give the same no shutdown command at interface GigabitEthernet2/1/3 as well ?
 
Switch-Core1(config) interface GigabitEthernet1/1/3
Switch-Core1(config-if)#no shutdown
Switch-Core1(config-if)#

Please see below , the Gigabit interface  still down after no shutdown command was given.
GigabitEthernet1/0/20  unassigned      YES unset  up                    up
GigabitEthernet1/0/21  unassigned      YES unset  down                  down
GigabitEthernet1/0/22  unassigned      YES unset  down                  down
GigabitEthernet1/0/23  unassigned      YES unset  down                  down
GigabitEthernet1/0/24  unassigned      YES unset  up                    up
GigabitEthernet1/1/1   unassigned      YES unset  up                    up
GigabitEthernet1/1/2   unassigned      YES unset  up                    up
GigabitEthernet1/1/3   unassigned      YES unset  down                  down
GigabitEthernet1/1/4   unassigned      YES unset  up                    up
Te1/1/1                unassigned      YES unset  down                  down
Te1/1/2                unassigned      YES unset  down                  down
GigabitEthernet2/0/1   unassigned      YES unset  up                    up
GigabitEthernet2/0/2   unassigned      YES unset  up                    up
GigabitEthernet2/0/3   unassigned      YES unset  up                    up
GigabitEthernet2/0/4   unassigned      YES unset  down                  down
GigabitEthernet2/0/5   unassigned      YES unset  up                    up
GigabitEthernet2/0/6   unassigned      YES unset  down                  down
GigabitEthernet2/0/7   unassigned      YES unset  down                  down
GigabitEthernet2/0/8   unassigned      YES unset  up                    up
GigabitEthernet2/0/9   unassigned      YES unset  up                    up
GigabitEthernet2/0/10  unassigned      YES unset  down                  down
GigabitEthernet2/0/11  unassigned      YES unset  down                  down
GigabitEthernet2/0/12  unassigned      YES unset  down                  down
GigabitEthernet2/0/13  unassigned      YES unset  down                  down
GigabitEthernet2/0/14  unassigned      YES unset  up                    up
GigabitEthernet2/0/15  unassigned      YES unset  up                    up
GigabitEthernet2/0/16  unassigned      YES unset  up                    up
GigabitEthernet2/0/17  unassigned      YES unset  up                    up
GigabitEthernet2/0/18  unassigned      YES unset  up                    up
GigabitEthernet2/0/19  unassigned      YES unset  down                  down
GigabitEthernet2/0/20  unassigned      YES unset  up                    up
GigabitEthernet2/0/21  unassigned      YES unset  down                  down
GigabitEthernet2/0/22  unassigned      YES unset  up                    up
GigabitEthernet2/0/23  unassigned      YES unset  down                  down
GigabitEthernet2/0/24  unassigned      YES unset  up                    up
GigabitEthernet2/1/1   unassigned      YES unset  up                    up
GigabitEthernet2/1/2   unassigned      YES unset  up                    up
GigabitEthernet2/1/3   unassigned      YES unset  down                  down
GigabitEthernet2/1/4   unassigned      YES unset  up                    up
Te2/1/1                unassigned      YES unset  down                  down
Te2/1/2                unassigned      YES unset  down                  down
Port-channel1          unassigned      YES unset  down                  down
Port-channel2          unassigned      YES unset  down                  down


Please post me some  tutorials to sort this  and Thanks  any help much appreciated,
lianne143Asked:
Who is Participating?
 
Zephyr ICTCloud ArchitectCommented:
So all seems to be ok now no? ... Or are you still experiencing issues?
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Zephyr ICTCloud ArchitectCommented:
What do you mean with "Due to looping in the network the Fibre uplink ports GigabitEthernet1/1/3 and GigabitEthernet2/1/3 are down" ??

Do you have a loop in your network? Better to solve that first before trying to enable ports again, that is, if you haven't already?

Maybe there's a hint in the log for why the ports are down, check the log with "show log"
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lianne143Author Commented:
I mean on the workstation side some one looped two data ports with a single LAN cable. So STP was enabled on the core switch and it shutdown this segment. I have now removed the LAN cable that caused looping .
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Zephyr ICTCloud ArchitectCommented:
aha ... Ok ... Is the port in errdisable?

show int gi1/1/3 status

Open in new window


Also provide output of following please:

show errdisable recovery

Open in new window

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lianne143Author Commented:
Away from my work place, Sure I will post this tomorrow.
will there be any down time on the switch if I run this command.
Show errdisable recovery

Thanks
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Zephyr ICTCloud ArchitectCommented:
Hi,

No, no downtime when running these commands no, they are just informative.
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lianne143Author Commented:
Switch-CORE1#show int gi1/1/3 status

Port          Name                     Status              Vlan       Duplex            Speed             Type
Gi1/1/3    LAN-Room-3         notconnect      1            auto                 auto                1000BaseSX SFP              


Switch-CORE1#show errdisable recovery
ErrDisable Reason                Timer Status
-----------------                            --------------
arp-inspection                        Disabled
bpduguard                              Disabled
channel-misconfig (STP)       Disabled
dhcp-rate-limit                       Disabled
dtp-flap                                   Disabled
gbic-invalid                             Disabled
inline-power                           Disabled
l2ptguard                                Disabled
link-flap                                   Enabled
mac-limit                                 Disabled
loopback                                 Disabled
pagp-flap                                Disabled
port-mode-failure                 Disabled
pppoe-ia-rate-limit                Disabled
psecure-violation                  Disabled
security-violation                  Disabled
sfp-config-mismatch            Disabled
small-frame                           Disabled
storm-control                        Disabled
udld                                         Disabled
vmps                                       Disabled
psp                                          Disabled

Timer interval: 60 seconds

Interfaces that will be enabled at the next timeout:

Switch-CORE1#
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lianne143Author Commented:
Please see below i have done show interface on all the Gigabit ports

Switch-CORE1#
Switch-CORE1#show int gi1/1/1 status

Port         Name                         Status           Vlan       Duplex       Speed           Type
Gi1/1/1   LAN-Room-1             connected    trunk      a-full          a-1000          1000BaseSX SFP
Switch-CORE1#show int gi1/1/2 status

Port         Name                          Status            Vlan      Duplex        Speed           Type
Gi1/1/2   LAN-Room-2              connected    trunk      a-full          a-1000          1000BaseSX SFP
Switch-CORE1#show int gi1/1/3 status

Port          Name                        Status             Vlan       Duplex       Speed            Type
Gi1/1/3   LAN-Room-3         notconnect           1           auto           auto             1000BaseSX SFP
Switch-CORE1#show int gi1/1/4 status

Port          Name                       Status              Vlan       Duplex       Speed             Type
Gi1/1/4   LAN-Room-4         connected         trunk      a-full           a-1000            1000BaseSX SFP
Switch-CORE1#
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Zephyr ICTCloud ArchitectCommented:
Are you sure there is no issue with the cable/patch? Because notconnect would mean the port doesn't see a cable. Another difference I see is that, that port is not a trunk?

Maybe there's an issue with the cable or with the sfp, what does the other side of the connection tell us? is that port up?
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lianne143Author Commented:
Hi

I have not not connected the other end which links to a fibre HP edge switch.
Is is not possible to make the GigabitEthernet1/1/3  port Up, without connecting the other end to the fiber port.
Not sure why the port is not set to trunk , once the port is up will is set it self as trunk ?
Thanks
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Zephyr ICTCloud ArchitectCommented:
Aha, yes, the connection needs to be made to be able to set port active or not, it will show disconnected until you connect both ends.... Depending on the config of the port it can indeed set itself as trunk and whatnot ...
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lianne143Author Commented:
Sure

I will connect the other end , will that be ok if i can do this on 27th , our organisation will be closed for holidays.
Bit nervous to do it now.Will you help me during that time.
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Zephyr ICTCloud ArchitectCommented:
Hi, I can probably be here, but it's a ways off so it's too soon to tell... Probably your question might be stamped as abandoned though
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lianne143Author Commented:
Hi

I connected the other end to the fibre UP link which comes from the core switch to the HP switch and see the input below the interface GigabitEthernet1/1/3 is Up now

GigabitEthernet1/0/23  unassigned      YES unset  down            down
GigabitEthernet1/0/24  unassigned      YES unset  up                  up
GigabitEthernet1/1/1   unassigned      YES unset  up                    up
GigabitEthernet1/1/2   unassigned      YES unset  up                    up
GigabitEthernet1/1/3   unassigned      YES unset  up                    up
GigabitEthernet1/1/4   unassigned      YES unset  up                    up

But the GigabitEthernet2/1/3  was  down
GigabitEthernet2/1/1   unassigned      YES unset  up                    up
GigabitEthernet2/1/2   unassigned      YES unset  up                    up
GigabitEthernet2/1/3   unassigned      YES unset  up                    down
GigabitEthernet2/1/4   unassigned      YES unset  up                    up

I went to this interface GigabitEthernet2/1/3  and gave this command show errdisable recovery
ErrDisable Reason                Timer Status
 -----------------                            --------------
arp-inspection                        Disabled
 bpduguard                              Disabled
 channel-misconfig (STP)       Disabled
 dhcp-rate-limit                       Disabled
 dtp-flap                                   Disabled
 gbic-invalid                             Disabled
 inline-power                           Disabled
 l2ptguard                                Disabled
 link-flap                                   Enabled
 mac-limit                                 Disabled
 loopback                                 Disabled
 pagp-flap                                Disabled
 port-mode-failure                 Disabled
 pppoe-ia-rate-limit                Disabled
 psecure-violation                  Disabled
 security-violation                  Disabled
 sfp-config-mismatch            Disabled
 small-frame                           Disabled
 storm-control                        Disabled
 udld                                         Disabled
 vmps                                       Disabled
 psp                                          Disabled

 Timer interval: 60 seconds

 Interfaces that will be enabled at the next timeout: I closed putty and logged into the core and now the GigabitEthernet2/1/3 up now.Not sure if this command might have made the port up \something happened between for the port to become up .
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lianne143Author Commented:
Hi Spartech

Thanks for all your help and now the Gigabit uplink ports are up and I will award your points. I have a different issue and I will post it in the forum.
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Zephyr ICTCloud ArchitectCommented:
Hello, thanks, glad it helped out!!
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