Optimized Edge Routing (OER) -- classes learning process.

[Bacara.66]

Hello everyone,

I am new here so let me introduce myself briefly.  My name is Alexis, I'm a Belgian IT student and I work in a small business environnement as a trainee. 

I am asked to found and setup a cisco solution that offers load balancing between two different ISP. 

I configured a first solution using IP SLA and PBR.  It work pretty well.  But the problem is it doesn't look like I can do dynamic load balancing. If I am wrong, dont hesitate to correct me.

Then I searched a little bit more and I found OER (Maybe better known as PfR today ?).  Cisco documentation says it can do intelligent load balancing so I suppose it's the perfect choice.

I started reading the whole document about it.  I have to admit, it was not easy to understand everything (still don't by the way) but I thought I could give it a try in a lab environnement.

To help you understand better, I joined the basic topology.

As you can see, I need to configure an OER master and an OER border on the same router (1841 with IOS Version 12.4(25d)).

The problem is that the router does not profile any traffic classes.  So the main process won't work since Profiling Traffic Classes is the first step in OER.  When I use the show oer master prefix command, I get nothing.  I expected to see classes related to the traffic going through the router...   Am I wrong ?

Of course if you need more information, just ask.

Hope you can help.  

Thank you.

Alexis

Here is the configuration I used :

version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Router
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
ip cef
!
!
!
!
no ip domain lookup
ip auth-proxy max-nodata-conns 3
ip admission max-nodata-conns 3
!
!
key chain OER
 key 1
   key-string cisco
oer master
 logging
 !
 border 172.16.13.100 key-chain OER
  interface Vlan1 internal
  interface FastEthernet0/1 external
  interface FastEthernet0/0 external
 !
 learn
  throughput
  delay
  periodic-interval 2
  monitor-period 1
 mode route control
!
oer border
 logging
 local Loopback0
 master 172.16.13.100 key-chain OER
!
!
username Alexis privilege 15 secret 5 $1$UXem$pmZh1uUxYgk1vfhBmB1YO/
!
!
!
!
!
!
interface Loopback0
 ip address 172.16.13.100 255.255.255.0
!
interface FastEthernet0/0
 description openweb
 ip address 172.16.14.10 255.255.255.0
 ip nat outside
 ip virtual-reassembly
 duplex auto
 speed auto
!
interface FastEthernet0/1
 description voo
 ip address dhcp               //public ip address given by ISP2
 ip nat outside
 ip virtual-reassembly
 duplex auto
 speed auto
!
interface FastEthernet0/0/0
!
interface FastEthernet0/0/1
!
interface FastEthernet0/0/2
!
interface FastEthernet0/0/3
!
interface Serial0/1/0
 no ip address
 shutdown
 clock rate 2000000
!
interface Serial0/1/1
 no ip address
 shutdown
 clock rate 2000000
!
interface Vlan1
 ip address 10.10.10.254 255.255.255.0
 ip nat inside
 ip virtual-reassembly
!
ip forward-protocol nd
ip route 0.0.0.0 0.0.0.0 172.16.14.1
ip route 0.0.0.0 0.0.0.0 85.85.85.1          // Default Gateway for ISP2
!
!
no ip http server
no ip http secure-server
ip nat inside source route-map ISP1-NAT interface FastEthernet0/0 overload oer
ip nat inside source route-map ISP2-NAT interface FastEthernet0/1 overload oer
!
access-list 1 permit 10.10.10.0 0.0.0.255
!
route-map ISP2-NAT permit 10
 match ip address 1
 match interface FastEthernet0/1
!
route-map ISP1-NAT permit 10
 match ip address 1
 match interface FastEthernet0/0
!
!
!
!
control-plane
!
!
!
line con 0
line aux 0
line vty 0 4
 logging synchronous
 login local
!
scheduler allocate 20000 1000
end 
 

[AJ Cruz]

Try specifying traffic types under "learn" with either the "protocol" command or "traffic-class" command.

[Bacara.66]

Hi ajnallicruz,

First of all, thank you for your help.  Very much appreciated !

I tryed with the protocol command but it still not learning anything. 

Looks like the traffic-class command does not exist in my IOS version (Version 12.4(25d)).

Anything else you can come up with ?

Alexis

[AJ Cruz]

I'm at a client site today. If my wife manages to pry the iPad3 from my fingers tonight I'll load it up in GNS3 with your IOS.

[Bacara.66]

Hi ajnallicruz,

Did you manage to make it work ?

[AJ Cruz · Accepted solution]

I loaded your IOS into GNS3 and created a similar topology. I was unable to get OER to learn traffic as well, even though I could see it in NetFlow.

I'm not too familiar with OER on that code. I do know OER is pretty finicky and buggy on some platforms. If possible I'd try a 12.4T image.

Good luck.

[Bacara.66]

I agree, 12.4T releases seem to have much more OER features BUT I have a second hand router with no customer contract so I am stuck with IOS 12.4. 

Thanks for your help anyway.

[Joseph W. Doherty · Accepted solution]

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Posting

Correct, 12.4 OER doesn't support classes.  You need 12.4T (or later) PfR for classes feature.