# TCP Buffering

**URL:** <https://community.a10networks.com/t/tcp-buffering/44>\
**Category:** ADC - Application Delivery\
**Created:** [February 25, 2011, 10:01pm UTC](https://community.a10networks.com/t/tcp-buffering/44 "2011-02-25T22:01:27Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![system](https://us1.discourse-cdn.com/flex002/uploads/a10_community/original/1X/bb9f186d33804d3044a0374e589f49fdf3be1328.png) [@system](https://community.a10networks.com/u/system)\
**Post date:** [February 25, 2011, 10:01pm UTC](https://community.a10networks.com/t/tcp-buffering/44/1 "2011-02-25T22:01:27Z")

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**Posted by jmaddox**

Is there a way to customize tcp buffering parameters in AX?

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/flex002/uploads/a10_community/original/1X/bb9f186d33804d3044a0374e589f49fdf3be1328.png) [@system](https://community.a10networks.com/u/system)\
**Post date:** [February 25, 2011, 10:02pm UTC](https://community.a10networks.com/t/tcp-buffering/44/2 "2011-02-25T22:02:12Z")

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**Posted by ddesmidt**

Hi Jeff,

AX can act as a Proxy or not depending on the VIP type. Non-Proxy VIP types: TCP, UDP. Proxy VIP types: all others (HTTP, FTP, HTTPS, SSL-Proxy, etc) Note: From release 2.6, we introduced a new type “TCP-Proxy” which is a generic TCP proxy VIP type.

When the AX acts as a Proxy for a TCP application, then you have technically 2 distinct sessions: . One TCP session between Client and AX . One other TCP session between AX and the Server

And AX to reply to your question, the AX will buffer the server response fast if the client is on a slow link. How much data the AX will buffer? By default the AX will buffer up to 87380 bytes per session. But this is configurable up to 2147483647 bytes. . WebUI: “Config \>\> Service \>\> Template \>\> TCP Proxy” . CLI: “slb template tcp-proxy” and assign that template to your VIP-port.

Dimitri