Nexus 5K max vPC number

[ctychan]

Hi all

Refer to release note

Cisco Nexus 5000 Series Configuration Limits
for Cisco NX-OS Release 5.0(3)N1(1b)

Feature	Cisco Nexus 5000 Platform		Cisco Nexus 5500 Platform
	Verified Limits	Maximum Limits	Verified Limits	Maximum Limits
Maximum Fabric Extenders per Cisco Nexus 5000 Series or Nexus 5500 Series switch	12 units	12 units	24 units	24 units in Layer 2 mode
				8 units in Layer 3 mode
Maximum Fabric Extenders dual-homed to a vPC Cisco Nexus 5000 Series or Nexus 5500 Series switch pair	12 units	12 units	24 units	24 units in Layer 2 mode
				8 units in Layer 3 mode

Any one know the max vPC number if the vPC link is connecting to Catalyst switches and Servers in 802.3ad mode?

[Ruhann Du Plessis]

From a software point-of view:

The VPC numbers available from a configuration perspective is (1-4096):

(config-if)# vpc ?

  <1-4096>   Specify a Virtual Port Channel number

The VPC number is locally significant to the two VPC peers in a VPC domain. This means it does not matter what switch the etherchannel is connected to when using LACP.

There are limitations w.r.t. to the number of etherchannels supported on the N5Ks.

The N5K make distinction between "hardware" and "software" port-channels. The limitation seen on the "

Configuration Limits for Cisco NX-OS Release" pages refer to the hardware port-channels.

What is the difference between "hardware" and "software" port-channels?

"Hardware" port-channels are port-channel where the member interface terminate on the same chassis, similarly to classic ether-channels.

"Software" port-channels are the port-channels where the member interface span two chassis, like used with VPCs.

I trust this answered all your questions

[jkilleda]

Hi Charles,

Nexus 5K max vPC number
Max VPC : There can be multiple VPC's connected and one VPC domain.