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New Member

Traffic is not optimizing in WAAS

Currently we are facing issue for WAAS implementation.

Scenario:

WCCP done on the DC router and WAAS express enable on the branch router

Issue: Traffic is not optimizing.  When checking in the WAAS express, it is not showing the connections or any traffic details (optimized or Passthrough).  But when checking in Core WAE device it is showing the traffic but it is in pass-through mode and the reason to bypass is showing as “ PT in progress”.

Device Software version details:

Cisco WAAS Core and Central Manager Version: 4.4.3.4

Cisco WAAS Edge device version: 15.1(4)M2

Can anyone help us out in resolving this issue.

Thanks in adnvance

Tharun                

Everyone's tags (1)
2 REPLIES
Cisco Employee

Re: Traffic is not optimizing in WAAS

Hello Tharun,

please review the following WCCP/WAAS troubleshooting doc:

http://docwiki.cisco.com/wiki/Cisco_WAAS_Troubleshooting_Guide_for_Release_4.1.3_and_Later_--_Troubleshooting_WCCP

You can also post the outputs below for better assistance, or open a TAC case =)...

from  Edge WAAS

show ip wccp 61 detail

show ip wccp 62 detail

show wccp wide-area-engine

show wccp status

show egress-methods

from the Edge router:

sh ip wccp 61 detail

sh ip wccp 62 detail

Sh Version  ( I want to research for any bugs or best practices based on your router version)

Sh run int <>?   ( I want to see the interfaces involve on the WCCP redirection.. just making sure this is not a desing issue,so please let me know which one is the LAN int and the WAN int) 

sample:

Int serial0/0:

description LAN network

ip wccp 61 redirect in

how exactly is the network topology at the edge side? are there any devices in between the WAAS edge device and the edge router/switch ?  ( or is the WAAS edge directly connected to the Edge Router or Switch)

this is really up to you:

I suggest to take one PC for testing, you can transfer one file from the edge testing PC  to the Core side Server ( everytime you open a file we expect to see the initial connection  handshake on both WAAS devices Edge and Core)  ..the idea is to always monitor an specific IP source and destination, it will be easier  to keep an eye after any network change if you could just stop and start the file transfer.

If you have ACL's for wccp don't forget to add an specific line for including the source and destination for the testing PC to the data center and from the Data center to the testing PC)

Sample:

Router(config)# ip wccp redirect-list 120

Router(config)# access-list 120 permit tcp host 10.1.1.1 any

Router(config)# access-list 120 permit tcp any host 12.1.1.1

 
Router(config)# interface Ethernet 0/1
Router(config-if)# ip wccp  redirect in

note:

it is expected to see "PT status" at the core site if we see no traffic at  EDGE location, there could be other reasons but I guess there's plenty to check on the edge side so far.

any questions let me know,

good luck!

New Member

Traffic is not optimizing in WAAS

Do you use redirection list for wccp in the core? make sure the waas express remote subnet is added in the list.

Have you checked the license of waas express? is it active?

I had lot of issues with waas express and trust me cisco has to develop an unofficial engineering image for our company.

The latest update from cisco is to upgrade the core to 4.4.5c and waas express to c2900-universalk9-mz.SPA.152-3.T1.bin. we use 2911 series.

Try to customize a group policy to optimize what application you want in the waas express. Rest of them put as pass-through.

Good luck

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