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Community Member

WAAS Show Commands

When i execute the command

show tfo connection summary

I get the alot of

PT in Progress

and

PT No Peer

results

What do these mean as far as optimization goes? These all are appearing under the Pass Through Connection Heading.

Also, application engines lie on both sides of the connections reporting the PT no Peer and PT in Progress outputs.

Are there any cisco docs that dig deeper into the relevance of the output from these types commands more so than the command references. I am looking for more tools to troubleshoot waas optimizations.

8 REPLIES
Cisco Employee

Re: WAAS Show Commands

Michael,

Pass-through connections are connections that are forwarded without any optimization. This can happen for a number of reasons. The specific connection types you mentioned mean the following:

PT In Progress - The connection was already established when the first packet was seen by the WAE.

PT No Peer - The connection is pass-through due to no peer WAE being found during TFO auto-discovery.

Zach

Community Member

Re: WAAS Show Commands

Zach,

Is there a specific doc that further outlines the meaning of these outputs as well as others?

Cisco Employee

Re: WAAS Show Commands

We are working to add this type of information to the command reference.

Zach

Community Member

Re: WAAS Show Commands

Whats the Internal Server in the output relevant to ?

Community Member

Re: WAAS Show Commands

Zach,

Check this out

10.1.30.60:80 10.137.10.21:4248 PT No Peer

This connection has waes on both sides but i am still getting a PT no Peer. Will this occur until the option marked ip packet is received back from the remote WAE? Is this normal during intial optimization handshaking?

Cisco Employee

Re: WAAS Show Commands

No - this state only appears after the 3-way handshake is complete.

It is possible you have an asymmetric path when interception is not configured?

Zach

Community Member

Re: WAAS Show Commands

We have a single router at the remote site and dual routers homed to the same provider via bgp at the head end. Each head end device is dual homed into the core. The WAE sits between these head end devices off a common vlan configured off there ESMs. Redirection is configured on both devices. Acceleration is working as expected.

Cisco Employee

Re: WAAS Show Commands

Internal Server means that the connection is destined for an internal application on the WAE. For example, the WAFS Core service is an internal server.

Zach

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