Telemetry, Telemetry overview, Policy-based routing – Brocade Network Advisor IP User Manual v12.3.0 User Manual
Page 717: Chapter 18, Chapter 18, “telemetry
Brocade Network Advisor IP User Manual
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Chapter
18
Telemetry
In this chapter
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Telemetry overview
NOTE
Network telemetry is only supported on Ethernet router, Ethernet core router, or Ehternet Backbone
router products running 5.4 or later.
Network telemetry enables you to monitor, report, and analyze traffic information and data on your
network. The Management application provides three features that enable you to perform Network
telemetry:
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ACLs - Collection of permit and deny statements (rules) used to permit or deny incoming
frames from passing through an interface. To create an ACL, refer to
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PBR - Collection of ACLs and route maps (rules) that enable you to redirect traffic. To create a
policy-based routing policy, refer to
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ACL accounting - Counters used to track the number of times an ACL is used to filter traffic. To
enable ACL accounting, refer to
“Enabling or disabling ACL accounting”
Policy-based routing
NOTE
Network telemetry is only supported on Ethernet router, Ethernet core router, or Ehternet Backbone
router products running 5.4 or later.
Normally, when a router receives a packet it forwards it based on the destination address in the
packet, PBR enables you to forward the packet based on other criteria such as, source or
destination network, source or destination address, source or destination port, and protocol.
PBR uses access control lists (Layer 3 ACLs) and route maps (PBR policies) to filter and route IP
packets to one or more specified ports.
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ACLs are used to classify the traffic.
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PBR policies are used to set routing attributes and next hop for the traffic. Next hop can be IP
(IPv4 or IPv6 formats), Flood VLAN, or Port/LAG.