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Note: In this release, active/active chassis cluster (that is, cross-box data forwarding over the fabric interface) is not supported on an SRX-series chassis cluster. |
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Note: In this release, active/active chassis cluster (that is, cross-box data forwarding over the fabric interface) is not supported on an SRX-series chassis cluster. |
For JUNOS software, flow processing occurs on a single node on which the session for that flow was established and is active. This approach ensures that the same security measures are applied to all packets belonging to a session.
A chassis cluster can receive traffic on an interface on one node and send it out an interface on the other node. (The ingress interface for traffic might exist on one node and its egress interface on the other.)
This traversal is required in the following situations:
If the ingress and egress interfaces for a packet are on one node, but the packet must be processed on the other node because its session was established there, it must traverse the data link twice. This can be the case for some complex media sessions, such as voice-over-IP (VoIP) sessions.
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