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WAE-512-1G Optimized TCP Connections

Hi all,

Regarding the Sizing Capabilities of a WAE-512-1G Appliance, what is the meaning of the "Optimized TCP Connections" ?

Is this parameter related only from the initiated point ? or from both directions?

I'm asking this because, after instaling in inline configuration, a point-to-point circuit only, (2 WAE's + 1 CM), in the Branch WAE we had a Minor Alarm saying that we have reached the TFO Limitation, and on the ohter end, we haven't that alarm.

Most of the traffic(connections), should be from the Branch to the Central Site.

So, the main question is, if this parameter is related to from where the connection is initiated.

Best Regards,

Bruno Petrónio

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Accepted Solutions
Community Member

Re: WAE-512-1G Optimized TCP Connections

Hi Bruno,

I am assuming that you are running 4.1.x version on WAEs. The 'show tfo detail' command will show you how many optimized TCP connections your h/w (WAE) supports. The 'show stat conn' will show you currently active optimized flows. If you see the currently active optimized flows equivalent to your WAE limit then you are expected to see that message.

It means that the number of TCP flows from branch office to central site are exceeding the what your device can support. So, you need a WAE that can support higher number of TCP connections.

Regards

Nat

2 REPLIES
Silver

Re: WAE-512-1G Optimized TCP Connections

The branch Cisco WAE applies a new TCP option (0x21) to the packet if the application is identified for optimization by an application classifier. The branch Cisco WAE adds its device ID and application policy support to the new TCP option field. This option is examined and understood by other Cisco WAEs in the path as the ID and policy fields of the initial Cisco WAE device. The initial ID and policy fields are not altered by another Cisco WAE. The packet is forwarded to the branch router and then to the WAN.

http://www.cisco.com/en/US/docs/solutions/Enterprise/Data_Center/App_Networking/citrixdg_final.html

Community Member

Re: WAE-512-1G Optimized TCP Connections

Hi Bruno,

I am assuming that you are running 4.1.x version on WAEs. The 'show tfo detail' command will show you how many optimized TCP connections your h/w (WAE) supports. The 'show stat conn' will show you currently active optimized flows. If you see the currently active optimized flows equivalent to your WAE limit then you are expected to see that message.

It means that the number of TCP flows from branch office to central site are exceeding the what your device can support. So, you need a WAE that can support higher number of TCP connections.

Regards

Nat

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