06-19-2023 10:13 AM
Hello,
I'm new in switching... so sorry for this (hopefully) simple question...
I have two nexus 5672 with a fex connected on each nexus.
Now I have a HPE StoreEasy with windows 2019 installed and 4 nics (1Gig each) in it. I plugged two 1 gig copper to each fex and built a port-channel. So now there are two nics on Nexus 1 Fex 1 and two nics on Nexus 2 Fex 2.
Portchannel comes up and teaming on the server works.
When I copy something from the HPE StoreEasy server to another server in the same network I have the full speed of the 4 nics.
If I copy something from another server (connected with 10Gig) to my "4 nic port channel" -Server, I have only 1 Gig.
nexus 1
interface port-channelXXXX
description SERVER_VLANXX
no lacp suspend-individual
switchport access vlan XX
spanning-tree port type edge
spanning-tree bpdufilter disable
vpc 5
interface Ethernet111/1/25
description SERVER_VLANXX
switchport access vlan 25
channel-group 1018 mode active
interface Ethernet111/1/26
description SERVER_VLANXX
switchport access vlan 25
channel-group 1018 mode active
nexus 2
interface port-channelXXXX
description SERVER_VLANXX
no lacp suspend-individual
switchport access vlan XX
spanning-tree port type edge
spanning-tree bpdufilter disable
vpc 5
interface Ethernet111/1/25
description SERVER_VLANXX
switchport access vlan 25
channel-group 1018 mode active
int brief:
Po1018 25 eth access up none a-1000(D) lacp
vpc brief
vPC status
----------------------------------------------------------------------------
id Port Status Consistency Reason Active vlans
------ ----------- ------ ----------- -------------------------- -----------
5 Po1018 up success success xx
Any idea?
Thanks
Solved! Go to Solution.
06-19-2023 10:44 AM - edited 06-19-2023 10:46 AM
Hi,
That is the correct behavior of a Portchannel. When you have multiple physical links in a Portchannel, you can only use one physical link at a time per flow or per source. So, in your case, you have 4 1Gig physical links and the max bandwidth you can get (per source) is 1Gig and not 4Gig. If you had 4 10Gig in PO, you would get a max of 10Gig and not 40Gig.
HTH
06-19-2023 10:44 AM - edited 06-19-2023 10:46 AM
Hi,
That is the correct behavior of a Portchannel. When you have multiple physical links in a Portchannel, you can only use one physical link at a time per flow or per source. So, in your case, you have 4 1Gig physical links and the max bandwidth you can get (per source) is 1Gig and not 4Gig. If you had 4 10Gig in PO, you would get a max of 10Gig and not 40Gig.
HTH
06-19-2023 09:57 PM
Thanks
06-19-2023 12:18 PM - edited 06-19-2023 10:35 PM
Can I see topolgy?
MHM
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