[c-nsp] Port-Channel Limits

[Mack McBride]

There is a hard limit of 16 CEF load balanced destinations in PCF3B/3C/3BXL/3CXL based platforms.
My understanding is that Nexus gear and other newer gear can support more than 8 but older gear cannot.

Mack McBride
Network Architect


-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Daniel Suchy
Sent: Wednesday, January 12, 2011 3:13 AM
To: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] Port-Channel Limits

Hello,

On 01/12/2011 11:00 AM, Phil Mayers wrote:
> On 01/11/2011 06:28 PM, Jose Madrid wrote:
>> I need to configure a port-channel with multiple 10Gb interrfaces and am
>> wondering if anyone knew the limit of ports I could have in the same
>> port-channel? From what I have been able to find it appears to be 8,
>> but I
>> wanted to know if anyone knew of a real-life answer.  Here is the
>> document i
>> found that states 8 is the limit:
>> http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.1E/native/configuration/guide/channel.html#wp1020420
>>
> 
> IIRC on 6500 this changed in a recent IOS version. Which platform/IOS
> release?

Even with latest releases, eigth port limit is still on this platform.
So you can have up to eight active ports in the portchannel. With LACP,
you can configure 16 ports for redundancy purposes (8 ports will be
active, 8 standby).

Daniel
_______________________________________________
cisco-nsp mailing list  cisco-nsp at puck.nether.net
https://puck.nether.net/mailman/listinfo/cisco-nsp
archive at http://puck.nether.net/pipermail/cisco-nsp/