Cisco Performance Routing Example (PfR)
Click here to fill the form out with sample data This example demonstrates - a colocation of the Master and Border router functions - pfr static routes (mode route control) to force routing - destinations learned are aggregated at /24 boundaries - pfr load balances traffic based on throughput !################################################################# ! show commands !################################################################# show pfr master show pfr master border detail show pfr master traffic-class show route-map dynamic show access-list dynamic !################################################################# ! Configure the Border Router (Br) !################################################################# ! -- Create a Key Chain for PfR Authentication key chain PFR key 1 key-string [[Key Chain String]] ! -- configure Border Router PFR settings pfr border local [[PfR Border Source Interface]] master [[PfR Master IP Address]] key-chain PFR !################################################################# ! Configure the Master Controller (MC) !################################################################# (The MC and Br can be co-located on the same router) ! -- Create a Key Chain for PfR Authentication key chain PFR key 1 key-string [[Key Chain String]] ! -- configure Master Controller PFR settings pfr master logging border [[PfR Border IP Address]] key PFR interface [[PfR Border Internal Interface]] internal interface [[PfR Border External Interface 1]] external interface [[PfR Border External Interface 2]] external mode route control learn throughput aggregation-type prefix-length 24 !################################################################# ! Understanding !################################################################# The above commands configure the basics of PFR but do not actually "do" anything. By default, PfR just monitors the traffic but doesn't actually make decisions or act on the traffic patterns. There are 5 phases to PfR and they loop 1-6 1) Profile - PfR profiles traffic by learning the traffic with netflow or manual configuration 2) Measure - Metrics are measured actively (ip sla) and/or passively (netflow) 3) Apply Policy - Results are measured against thresholds to determine if traffic is "Out of Policy" 4) Enforce - Static routing, PBR or Routing protocol metrics are adjusted by PfR to bring traffic "In Policy" 5) Verify - PfR verifies traffic is flowing out the correct external interface



Key Chain String:
PfR Border Source Interface:
PfR Border IP Address:
PfR Border Internal Interface:
PfR Border External Interface 1:
PfR Border External Interface 2:
PfR Master IP Address:


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