08-06-2012 02:42 AM - edited 03-07-2019 08:10 AM
I setup corectly a LACP etherchannel with all VLANS allowed. This interface is called Po10.
Then I set up another one, Po20, consisting of interfaces 33 and 34, but this time restricting VLANs to only VLAN 20 (all config is below).
But when I do a sh int trunk and sh vlan brief, it only shows vlans for Po10. Is this because nothing is connected to the new port-channel, yet?
And what about the "no shut" command. I have not run this command. I thought I had to run this command, since all ports are shut per default in a Cisco switch? The config does not show this for any of my ports (I might have done this for the working port-channel).
Here is the config:
3750G-A#sh run int gi1/0/33
Building configuration...
Current configuration : 228 bytes
!
interface GigabitEthernet1/0/33
description iSCSI LACP interface
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 20
switchport mode trunk
channel-group 20 mode active
spanning-tree portfast trunk
end
3750G-A#sh run int gi1/0/34
Building configuration...
Current configuration : 228 bytes
!
interface GigabitEthernet1/0/34
description iSCSI LACP interface
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 20
switchport mode trunk
channel-group 20 mode active
spanning-tree portfast trunk
end
3750G-A#sh run int po20
Building configuration...
Current configuration : 202 bytes
!
interface Port-channel20
description LACP Port-Channel for VNX iSCSi
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 20
switchport mode trunk
spanning-tree portfast trunk
end
3750G-A#sh int trunk
Port Mode Encapsulation Status Native vlan
Po10 on 802.1q trunking 1
Port Vlans allowed on trunk
Po10 1-4094
Port Vlans allowed and active in management domain
Po10 1,3,20,30,40,50,60,99
Port Vlans in spanning tree forwarding state and not pruned
Po10 1,3,20,30,40,50,60,99
3750G-A#sh vlan brief
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Gi1/0/6, Gi1/0/7, Gi1/0/8
Gi1/0/9, Gi1/0/10, Gi1/0/11
Gi1/0/12, Gi1/0/13, Gi1/0/14
Gi1/0/15, Gi1/0/16, Gi1/0/19
Gi1/0/20, Gi1/0/21, Gi1/0/22
Gi1/0/23, Gi1/0/24, Gi1/0/25
Gi1/0/26, Gi1/0/27, Gi1/0/28
Gi1/0/29, Gi1/0/30, Gi1/0/31
Gi1/0/32, Gi1/0/33, Gi1/0/34
Gi1/0/35, Gi1/0/36, Gi1/0/37
Gi1/0/38, Gi1/0/39, Gi1/0/40
Gi1/0/41, Gi1/0/42, Gi1/0/43
Gi1/0/44, Gi1/0/45, Gi1/0/46
Gi1/0/47, Gi1/0/48, Gi1/0/49
Gi1/0/50, Gi1/0/51, Gi1/0/52
3 Management active Gi1/0/1, Gi1/0/2, Gi1/0/3
Gi1/0/4, Gi1/0/5
20 iscsi-A active
30 iscsi-B active
40 vMotion active
Solved! Go to Solution.
08-06-2012 04:17 AM
yes you right, if the ports are not connected then they will show only the default (NATIVE VLAN:).
sh vlan brief will show the vlan is active or not not the port.
Hope this helps.
Regards
Please rate if it helps.
08-06-2012 03:40 AM
Hi Atle,
No shut command is used to make port avilability to up otherwise port will be in shutdown status.
If you will not connect a device on these ports then it will not show the trunk ports.
run this command: sh int status
and paste the output.
REgards
Please rate if it helps.
08-06-2012 03:57 AM
3560-B#sh int status
Port Name Status Vlan Duplex Speed Type
Gi0/1 Management interfa notconnect 3 auto auto 10/100/1000BaseTX
Gi0/2 management vlan 3 notconnect 3 auto auto 10/100/1000BaseTX
Gi0/3 Mangement switch notconnect 3 auto auto 10/100/1000BaseTX
Gi0/4 notconnect 1 auto auto 10/100/1000BaseTX
Gi0/5 VNX Management notconnect 3 auto auto 10/100/1000BaseTX
Gi0/6 notconnect 1 auto auto 10/100/1000BaseTX
Gi0/7 notconnect 1 auto auto 10/100/1000BaseTX
Gi0/8 notconnect 1 auto auto 10/100/1000BaseTX
Gi0/9 notconnect 1 auto auto 10/100/1000BaseTX
Gi0/10 notconnect 1 auto auto 10/100/1000BaseTX
Gi0/11 notconnect 1 auto auto 10/100/1000BaseTX
Port Name Status Vlan Duplex Speed Type
Gi0/12 notconnect 1 auto auto 10/100/1000BaseTX
Gi0/13 notconnect 1 auto auto 10/100/1000BaseTX
Gi0/14 notconnect 1 auto auto 10/100/1000BaseTX
Gi0/15 notconnect 1 auto auto 10/100/1000BaseTX
Gi0/16 notconnect 1 auto auto 10/100/1000BaseTX
Gi0/17 UCS FI-B uplinks connected trunk a-full a-1000 10/100/1000BaseTX
Gi0/18 UCS FI-B uplinks connected trunk a-full a-1000 10/100/1000BaseTX
Gi0/19 notconnect 1 auto auto 10/100/1000BaseTX
Gi0/20 notconnect 1 auto auto 10/100/1000BaseTX
Gi0/21 notconnect 1 auto auto 10/100/1000BaseTX
Gi0/22 notconnect 1 auto auto 10/100/1000BaseTX
Port Name Status Vlan Duplex Speed Type
Gi0/23 notconnect 1 auto auto 10/100/1000BaseTX
Gi0/24 notconnect 1 auto auto 10/100/1000BaseTX
Gi0/25 notconnect 1 auto auto 10/100/1000BaseTX
Gi0/26 notconnect 1 auto auto 10/100/1000BaseTX
Gi0/27 notconnect 1 auto auto 10/100/1000BaseTX
Gi0/28 notconnect 1 auto auto 10/100/1000BaseTX
Gi0/29 notconnect 1 auto auto 10/100/1000BaseTX
Gi0/30 notconnect 1 auto auto 10/100/1000BaseTX
Gi0/31 notconnect 1 auto auto 10/100/1000BaseTX
Gi0/32 notconnect 1 auto auto 10/100/1000BaseTX
Gi0/33 iSCsi fra VNX notconnect 1 auto auto 10/100/1000BaseTX
Port Name Status Vlan Duplex Speed Type
Gi0/34 iSCsi fra VNX notconnect 1 auto auto 10/100/1000BaseTX
Gi0/35 notconnect 1 auto auto 10/100/1000BaseTX
Gi0/36 notconnect 1 auto auto 10/100/1000BaseTX
Gi0/37 notconnect 1 auto auto 10/100/1000BaseTX
Gi0/38 notconnect 1 auto auto 10/100/1000BaseTX
Gi0/39 notconnect 1 auto auto 10/100/1000BaseTX
Gi0/40 notconnect 1 auto auto 10/100/1000BaseTX
Gi0/41 notconnect 1 auto auto 10/100/1000BaseTX
Gi0/42 notconnect 1 auto auto 10/100/1000BaseTX
Gi0/43 notconnect 1 auto auto 10/100/1000BaseTX
Gi0/44 notconnect 1 auto auto 10/100/1000BaseTX
Port Name Status Vlan Duplex Speed Type
Gi0/45 notconnect 1 auto auto 10/100/1000BaseTX
Gi0/46 notconnect 1 auto auto 10/100/1000BaseTX
Gi0/47 notconnect 1 auto auto 10/100/1000BaseTX
Gi0/48 notconnect 1 auto auto 10/100/1000BaseTX
Gi0/49 notconnect 1 auto auto Not Present
Gi0/50 notconnect 1 auto auto Not Present
Gi0/51 notconnect 1 auto auto Not Present
Gi0/52 notconnect 1 auto auto Not Present
Po10 Port-channel for U connected trunk a-full a-1000
Po20 iSCSi LACP Port-ch notconnect unassigned auto auto
08-06-2012 04:09 AM
yes.. according to your output:
Gi0/33 iSCsi fra VNX notconnect 1 auto auto 10/100/1000BaseTX
Gi0/34 iSCsi fra VNX notconnect 1 auto auto 10/100/1000BaseTX
both ports are not connected .
Regards
Please rate if it helps.
08-06-2012 04:11 AM
ok, so if not connected, the ports do not show up as member of vlans if if they are configured as member of vlans? sh vlan brief only says "active"
08-06-2012 04:17 AM
yes you right, if the ports are not connected then they will show only the default (NATIVE VLAN:).
sh vlan brief will show the vlan is active or not not the port.
Hope this helps.
Regards
Please rate if it helps.
08-16-2012 09:40 PM
Atle Dale wrote:
ok, so if not connected, the ports do not show up as member of vlans if if they are configured as member of vlans? sh vlan brief only says "active"
Because interfaces g0/33 & g0/34 aren't *in* the VLAN - they're *trunking* the VLAN.
You won;t get anything in the "sh vlan brief" output for vlan 20 unless and until you put an ACCESS port into this VLAN. Trunk ports aren't members of VLAN's, and both the ports you mention as being in the etherchannel are trunks, not access ports.
Cheers.
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide