[c-nsp] Port channel

Xu Hu jstuxuhu0816 at gmail.com
Fri Aug 24 09:32:06 EDT 2012

Hi Ryan, thanks for your information.

Xu Hu

On 24 Aug, 2012, at 20:19, Ryan West <rwest at zyedge.com> wrote:

> On Fri, Aug 24, 2012 at 06:40:07, Xu Hu wrote:
>> Subject: Re: [c-nsp] Port channel
>> What is the flex links about?
>> Because the traffic load-balance or not is depend on your settings, by 
>> default is source mac address, let's say if you just have one source 
>> then the traffic will just use one port-channel link, if you have two 
>> sources, then should be load-balance between the two members.
>> Correct me if I have the wrong understanding of hashing algorithm.
> The default hashing algorithm is different on some platforms in the Catalyst line.  In the Nexus line, the default is different for a layer 3 port channel vs a layer 2.  Flex Links disable STP and one interface or Portchannel acts as a backup.  
> http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.2SX/configuration/guide/flexlink.html
> -ryan

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