 | Copyright © 2009, Juniper Networks, Inc. All rights reserved. Trademark Notice. | |
Under normal operating conditions, traffic flows from the Trust zone to interface fe-1/0/0 belonging to reth0.0 on node 0. Because the primary Internet connection is in node 0, sessions are created in both node 0 and node 1, but active in only node 0.
A failure in interface fe-1/0/0 triggers a failover of the redundancy group, causing interface fe-5/0/0 in node 1 to become active. After the failover, traffic arrives at node 1. After session lookup, the traffic is sent to node 0 because the session is active on this node. Node 0 then processes the traffic and forwards it to the Internet. The return traffic follows a similar process—traffic arrives at node 0, is processed at node 0 because the session is anchored to this node, and is sent to node 1 through the fabric interface, where node 1 forwards it through interface fe-5/0/0.
| Copyright © 2009, Juniper Networks, Inc. All rights reserved. Trademark Notice. | |