Hello, I would recommend reading the PfR Doc Wiki: http://docwiki.cisco.com/wiki/PfR:Home Let us know if you have further questions. Best Regards, Steve Lyons - Cisco ... View more

Met, PfR support for EIGRP was introduced into 15.0(1)M. Best Regards, Steve Lyons - Cisco ... View more

Hi, You would issue the commands show oer master traffic-class and show oer master policy. Best Regards, Steve Lyons - Cisco ... View more

Hi, Please see the answers inline: 1. In the configuration of MC, when we define the external and internal interfaces, are these the interfaces of border router? Yes 2. If I only configure 'throughput' under 'learn', will the router be able to select one of the two Internet paths available to it based on optimal throughput? It is recommended to only configure "throughput" under learn. The border routers will then learn of the top throughput talkers. This only applies to the learning of prefixes and applications. Then PfR has to monitor these prefixes and applications. You will configure PfR in such a way to define what is important to monitor (jitter, loss, delay, MOS, etc) based on either prefixes or applications. 3. Shall I keep the floating static default routes on this edge routers towards Internet links? and will it select one of the two while forwarding Internet traffic? Thanks in advance for your help. Yes, this is an option. PfR requires parent routes on two or more external interface to allow for routing of traffic by either creating smaller routes (longer prefix match) or policy based routes. Best Regards, Steve Lyons - Cisco ... View more

Hello, You will need traffic to see the probes. I would also recommend actual TCP and UDP traffic.  Once you have traffic then you can issue "show oer master active-probes force - which details manually configured probes, and "show oer master traffic active-probes application - which details automatically created probes. Best Regards, Steve Lyons - Cisco ... View more

Hi Neil, PfR provides at minimum the following 4 capabilities: 1) Link capacity monitoring/management. 2) Load balancing. 3) Routing based on application requirements (i.e.: delay, jitter, loss, etc). 4) Routing around soft network errors (i.e.: brownout conditions, blackout conditions, etc). I would recommend looking into PfR as it looks to be the right feature for your requirements listed in this thread. Let me know if you have any further questions. Best Regards, Steve Lyons - Cisco ... View more

Hi, 1. If i want to apply oer to 200 subinterfaces which are on the same router, what kind of topology should i have? Can you clarify what you are asking in this question? Please see this reference: Q. How many Border Routers are supported, and how many exits in total? A. A total of 10 Border Routers and 20 exits per Border Router are supported on any one Master Controller for a combined total of up to 200 Interfaces or Exits. http://docwiki.cisco.com/wiki/Performance_Routing_FAQs 2.subinterfaces are supported by OER? Yes ... View more

We have a keyword "oer" that was added to the NAT configuration. This allows the active NAT translations to "stick" to their current interfaces instead of PfR moving them to another exit interface. The reason for this keyword addition was to support multiple ISP connections where you might setup overload nat'ing out outside interfaces to two or more different ISPs (1 ISP per outside interface). For example                       ------S0/0 ISP-A ----Fa0/0---R1                       ------S0/1 ISP-B The scenario is you have the above topology and configured overload nat'ing for interface S0/0 and S0/1 each with a different ISP/address space. You also have NOT configured the "oer" keyword within your NAT configuration statements. If traffic is flowing into Fa0/0 and out S0/0 with an active NAT session (overloaded to S0/0) and PfR decides to move this traffic to interface S0/1 due to an Out of Policy event, this might black hole the traffic if ISP-B is configured to block IP networks which it does not own nor allocate IP address space to customers. You now configured the "oer" keyword on your nat translations, PfR will not move this traffic until the NAT translation times out. Best Regards, Steve Lyons - Cisco ... View more

Hello, Did you have active traffic traversing your Border Routers when you issued show oer master active-probes? The BRs need to learn of traffic before probes will be created. Let me know if you have further questions. Best Regards, Steve Lyons - Cisco ... View more

Hello, PfR provides several capabilities for routing traffic: 1) Provide load balancing 2) Provide link capacity management 3) Route based on application requirements 4) Route around soft network errors (i.e.: brown outs, black outs, etc) PfR can monitor external links of a router to determine if they are exceeding user defined capacity thresholds. PfR can ensure load balancing is occurring between external interfaces of a router. PfR can also make routing decisions on behalf of network applications and their requirements. We see many deployments of PfR on the ISR router platforms. I would recommend taking a baseline of system health (i.e.: cpu usage, memory usage, etc) before and after enabling PfR. My experience with PfR has been the cpu and memory usage is very low. Each ISR and ASR platform scales to support a certain number of active applications and or prefixes. I would recommend contacting your Cisco Account Team or open a TAC case to obtain numbers per platform. You might also want to check out our PfR FAQ page which provides answers to many common questions: http://docwiki.cisco.com/wiki/Performance_Routing_FAQs Best Regards, Steve Lyons - Cisco ... View more

Hi, The minimum requirement for PfR is 1 Master Controller(MC), 1 Border Router(BR), 1 internal interface, and 2 external interfaces. The MC and BR are part of IOS and can be located on the same IOS router or you can have a separate MC and BR(s). PfR can support up to a total of 10 Border Routers and 20 exits per Border Router are supported on any one Master Controller for a combined total of up to 200 Interfaces or Exits. Sub interfaces are also supported and can be defined as internal or external interfaces. We have a PfR FAQ which provides answers to many common questions and it is located here: http://docwiki.cisco.com/wiki/Performance_Routing_FAQs Let me know if you have any further questions. Best Regards, Steve Lyons - Cisco ... View more

Hello, I have reviewed the router configuration and it appears you are missing the global key-chain definitions. I see they are defined on the master controller and border router configuration under oer master and oer border respectively. If you could post the output of show oer master border detail, show oer master, and show oer master policy it will provide additional information on the current status of PfR. If you would prefer open a TAC case for configuration assistance and we can help you with this configuration. Best Regards, Steve Lyons - Cisco ... View more