Link in the TED represents a flood-reflection adjacency. It enables RSVP on the same router to recognize that a It indicates that a given adjacency is a flood-reflector adjacency The flood reflection adjacency sub-TLV is installed in the trafficĮngineering database (TED) and is included in the Level 2 area flooded The flood-reflection adjacency sub-TLV as defined in draft-przygienda-lsr-flood-reflection-01. For more informationĪbout the flood reflection TLV, see draft-przygienda-flood-reflector-00įlood reflection implements the advertisement and receipt of
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The flood reflector or the flood-reflector client. Indicates whether the router is configured to play the role of either The Flood-Reflection TLV as defined in draft-przygienda-flood reflector-00 isĪ new top-level TLV that represents the flood-reflector cluster thatĪ given router interface is configured to participate in. The Junos OS implementation does not useĪ Level 2 route until the Level 2 route has at least one flood-reflector The Level 2 routes and relies on the IS-IS Level 1/ Level 2 inter-area There is a path available in the Level 2 domain, it suppresses all Suppose a Level 2 route has 10 equal-cost next hopsĪnd one of those next hops uses a flood-reflector interface, thenĪll the next hops are removed from the Level 2 route. To the flood-reflector client on the Level 2 shortest path for thisįlood reflection does not load balance traffic on Level 2 and Rely on the presence of an IS-IS Level 1 route to carry the traffic The installation of the usual IS-IS Level 2 route is suppressed, we Installation of the Level 2 route is suppressed completely. If the process of removing flood-reflector next hops from the LevelĢ route results in a Level 2 route that has no next hops, then the Uses a normal interface, then the modified Level 2 route is installed. If this process results in at least one remaining next hop that
#HOW DOES REFLECTOR 2 WORK WHICH PORTS INSTALL#
To not install any next hops that uses a flood-reflector interface
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This modifies the Level 2 route computation In the Junos OS implementation, the basic flood reflector forwardingįunctionality enables us to identify an IS-IS interface as a flood-reflector To establish IS-IS adjacency for flood reflection, we designateįlexible tunnel interfaces (FTI) as flood- reflector interfaces. This arrangement provides better scalability for However, they are not usedįor forwarding. The Level 2 flood-reflection adjacenciesĪre used to flood Level 2 link-state PDUs that are used in the LevelĢ shortest-path-first (SPF) computation. This is accomplished by creating Level 2 flood-reflection adjacencies Topologies where Level 1 areas provide transit forwarding for LevelĢ destinations within a Level 2 topology. IS-IS flood reflection enables creation of flood-reflection Modifying any routers not involved in the reflection process. Level 1/Level 2 ingress device as it does not require replacing or Reflectors participate in the IS-IS control plane without being used A flood-reflector adjacency as defined in the draft-przygienda-flood reflector-00 isīuilt for the purpose of reflecting flooding information.