10-01-2011 03:41 PM - edited 03-01-2019 07:00 AM
Ciao,
a little doubt arise afte reading the "Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide, Release 5.x" - September 12, 2011.
At the beginning of chapter 6 (and others times in the chapter) is stated:
"Beginning with Cisco NX-OS Release 5.1, you can bundle up to 16 active links into a port channel on the F Series module"
again when talking about LACP (6-9)
"With LACP, you can bundle up to 16 interfaces in a channel group. If the channel group has more than
8 interfaces, the remaining interfaces are in hot standby for the port channel associated with this channel
group on the M Series modules.
Beginning with Cisco NX-OS Release 5.1, you can bundle up to 16 active links into a port channel on
the F Series module."
So according to this starting with NX-OS 5.1 is possible to create an LACP with 16 active links, no more 8 active + 8 hot standby ?
Do this apply also to the vPC peer-link, but not to the vPC links (they still have 8 active) right?
While reading "Data Center Design with Cisco Nexus Switches and Virtual PortChannel: Overview" I found a table that put me in confusion ...
"Ports in a Single Port Channel -
8 without LACP or 16 (8 active, 8 standby) with LACP on a single Cisco Nexus 7000 Series or 16 all active with 8 active per Cisco Nexus 7000 Series, 16 all active on Cisco Nexus 5000 Series"
What does this mean? 8+8 in N7K ? or 8+8 or 16 in N7K ? while 16 in N5k??
I don't know english very well but I think that the above sentece is quite unclear!!
I think I'm little confused ... :-)
Ciao!
Luciano
Solved! Go to Solution.
10-10-2011 10:54 AM
Hi Luciano,
I havn't tested but if you are using the F module you should be able to bundle 16 links...vpc-peer link or etherchannel (I havn't tested 16 port vpc peer-link, but sounds like it hsould work). Now for VPC member link you would likely still want to do 8 max on each side...as the downstream switch using LACP will still have a max of 16...not 32.
Not sure if that clears anything up or not, but I hope it helps.
Chad
10-21-2011 02:10 PM
16 links PO is available between N7K and N7K, between N5k and N7K and between N5k and N5k.
10-10-2011 10:54 AM
Hi Luciano,
I havn't tested but if you are using the F module you should be able to bundle 16 links...vpc-peer link or etherchannel (I havn't tested 16 port vpc peer-link, but sounds like it hsould work). Now for VPC member link you would likely still want to do 8 max on each side...as the downstream switch using LACP will still have a max of 16...not 32.
Not sure if that clears anything up or not, but I hope it helps.
Chad
10-16-2011 03:25 PM
Chad,
so the 16 links PO is only avaiable between N7K / N5K, is right?
Tnx :-)
Luciano
10-21-2011 02:10 PM
16 links PO is available between N7K and N7K, between N5k and N7K and between N5k and N5k.
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