Medianet Reference Guide - Cisco

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Network-Embedded Management Functionality Chapter 6 Medianet Management and Visibility Design Considerations Besides individual flows, which may be challenging to identify from all the other flow data, some NetFlow collectors can generate aggregate reporting information regarding the total amount of unicast, broadcast, and multicast flows seen at a given point within the network infrastructure. An example is shown in Figure 6-4. Figure 6-4 Example of Aggregated Flow Data Reported By a NetFlow Collector Note Figure 6-4 shows a screen capture from the open source ntop NetFlow collector. The combination of individual multicast flow information as well as aggregated flow information may be useful in determining whether sufficient bandwidth has been provisioned across a particular point within the medianet infrastructure to support existing multicast flows. NetFlow Configuration Example The configuration snippets in Example 6-1 and Example 6-2 show a basic NetFlow configuration on a Cisco Catalyst 6500 Series Switch as well as on a Cisco IOS router platform. Note that this example shows no flow filtering or sampling, which may be necessary to decrease CPU and/or bandwidth utilization for NetFlow collection in production environments. Example 6-1 NetFlow Configuration on a Cisco Catalyst 6500 Series Switch mls netflow ! Enables NetFlow on the PFC mls flow ip interface-full ! Sets the NetFlow flow mask mls nde sender ! Enables NetFlow device export ! ! ~ ! ! interface TenGigabitEthernet6/1 description CONNECTION TO ME-EASTCORE-1 TEN5/4 ip address 10.16.100.13 255.255.255.252 ip flow ingress ! Enables MSFC NetFlow ingress on the interface 6-10 Medianet Reference Guide OL-22201-01
Chapter 6 Medianet Management and Visibility Design Considerations Network-Embedded Management Functionality ip multicast netflow ingress ! Enables multicast NetFlow ingress on the interface ip pim sparse-mode no ip route-cache load-interval 30 wrr-queue bandwidth 5 35 30 priority-queue queue-limit 30 wrr-queue queue-limit 5 35 30 wrr-queue random-detect min-threshold 3 60 70 80 90 100 100 100 100 wrr-queue random-detect max-threshold 1 100 100 100 100 100 100 100 100 wrr-queue random-detect max-threshold 2 100 100 100 100 100 100 100 100 wrr-queue random-detect max-threshold 3 70 80 90 100 100 100 100 100 wrr-queue cos-map 1 1 1 wrr-queue cos-map 2 1 0 wrr-queue cos-map 3 1 2 wrr-queue cos-map 3 2 3 wrr-queue cos-map 3 3 6 wrr-queue cos-map 3 4 7 priority-queue cos-map 1 4 5 mls qos trust dscp ! interface TenGigabitEthernet6/2 description CONNECTION TO ME-EASTCORE-2 TEN1/1 ip address 10.16.100.1 255.255.255.252 ip flow ingress ! Enables MSFC NetFlow ingress on the interface ip multicast netflow ingress ! Enables multicast NetFlow ingress on the interface ip pim sparse-mode no ip route-cache load-interval 30 udld port wrr-queue bandwidth 5 35 30 priority-queue queue-limit 30 wrr-queue queue-limit 5 35 30 wrr-queue random-detect min-threshold 3 60 70 80 90 100 100 100 100 wrr-queue random-detect max-threshold 1 100 100 100 100 100 100 100 100 wrr-queue random-detect max-threshold 2 100 100 100 100 100 100 100 100 wrr-queue random-detect max-threshold 3 70 80 90 100 100 100 100 100 wrr-queue cos-map 1 1 1 wrr-queue cos-map 2 1 0 wrr-queue cos-map 3 1 2 wrr-queue cos-map 3 2 3 wrr-queue cos-map 3 3 6 wrr-queue cos-map 3 4 7 priority-queue cos-map 1 4 5 mls qos trust dscp ! ! ~ ! ! ip flow-export source Loopback0 ! Sets the source interface of NetFlow export packets ip flow-export version 9 ! Sets the NetFlow export version to version 9 ip flow-export destination 10.17.99.2 3000 ! Sets the address & port of the NetFlow collector Example 6-2 NetFlow Configuration on a Cisco IOS Router interface GigabitEthernet2/0 description CONNECTS to BRANCH LAN SWITCH ip address 10.31.0.1 255.255.255.252 ip flow ingress ! Enables NetFlow collection ingress on the interface ! ~ ! OL-22201-01 Medianet Reference Guide 6-11
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About the Authors Solution Authors
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Contents Application Intelligence a
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Contents The Globalization of the W
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Contents NetFlow Collector Consider
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Business Drivers for Media Applicat
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Business Drivers for Media Applicat
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Packet Flow Malleability Chapter 2
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Medianet Reference Guide - Cisco

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