01-23-2019 03:11 PM - edited 03-08-2019 05:07 PM
Hello, i got a couple of questions, We have 2k fex's dual uplinked to 2 x 5k's.
1st - Do you set a spanning-tree port type to the PC and memebr interfaces? if so which?
2nd - I do not see any ports pinned to my fex uplink, but VPC looks good.
fex 101
pinning max-links 1
description "Fex uplink"
!
interface port-channel101
description << Po101 | vPC101 | FEX101 >>
switchport mode fex-fabric
no lacp suspend-individual
fex associate 101
vpc 101
!
interface Ethernet1/2
description << E1/2 | Po101 | MK0000110R2C702 | FEX101 | UL2 >>
switchport mode fex-fabric
fex associate 101
spanning-tree port type normal *** do we need this?
channel-group 101
!
vPC status
----------------------------------------------------------------------------
id Port Status Consistency Reason Active vlans
------ ----------- ------ ----------- -------------------------- -----------
101 Po101 up success success -
!
sh int port-channel 101 fex-intf
Fabric FEX
Interface Interfaces
---------------------------------------------------
Po101
!
FEX FEX FEX FEX Fex
Number Description State Model Serial
------------------------------------------------------------------------
101 Online N2K-C2232PP-10GE SSI15500JQQ
There is no active ports on the fex but I am thinking I should see the Fex ports pinned to the po101 or the memeber interface which it shows nothing
Thx
Solved! Go to Solution.
01-24-2019 12:16 PM
Hi,
As for the spanning-tree, I understand how all the edge ports should work. I was wondering if the actual physical uplink and port channel on the 5k uplinking the fex needs to have spanning-tree port type XX on it?
No, neither the physical interfaces nor the Portchannels need any STP config.
sample config:
interface Ethernet1/3
switchport mode fex-fabric
fex associate 111
channel-group 111
interface port-channel111
switchport mode fex-fabric
no lacp suspend-individual
fex associate 111
HTH
01-23-2019 03:54 PM
Hi,
here is the command for the ports connecting to PCs or any other end device that is configured as access port
spanning-tree port type edge
101 Online N2K-C2232PP-10GE SSI15500JQQ
As for the FEX , your 2k is online
If you issue "sh fex det" you should see all the ports.
HTH
01-24-2019 10:43 AM
Thanks for the reply. I do see the fex ports in the "sh fex 101 det " I was just concerned why I wouldn't see them running the "sh int e1/2 fex-intf" or "sh int po101 fex-intf" we have nothing connected to these currently and its in a data center across the country so I cannot even test them.
As for the spanning-tree, I understand how all the edge ports should work. I was wondering if the actual physical uplink and port channel on the 5k uplinking the fex needs to have spanning-tree port type XX on it? currently the port that connects to the fex uplink is e1/2 and has spanning-tree port type normal" on it. The port-channel has the default spanning-tree port type ( which I believe is normal ) so I would like to know if I need to change it? remove it? or add spanning-tree port type normal to the po101 interface, to match the physical? I looked and could not find any info on how fex uplink ports should be configured in a dual homed fex in regards to spanning-tree port type?
01-24-2019 12:16 PM
Hi,
As for the spanning-tree, I understand how all the edge ports should work. I was wondering if the actual physical uplink and port channel on the 5k uplinking the fex needs to have spanning-tree port type XX on it?
No, neither the physical interfaces nor the Portchannels need any STP config.
sample config:
interface Ethernet1/3
switchport mode fex-fabric
fex associate 111
channel-group 111
interface port-channel111
switchport mode fex-fabric
no lacp suspend-individual
fex associate 111
HTH
01-23-2019 11:26 PM
adding to otehr post
here is the command you can view.
show fex
show fex 100 detail
if you configured FEX as 101, then interface name start from 101/0/1 -- so on.
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