 | Copyright © 2008, Juniper Networks, Inc. All rights reserved. Trademark Notice. | |
A virtual link failure can occur when the active link is no longer used by the network because of topology changes caused by physical failure in the network. Topology changes can occur when, for example, a link is blocked because of network protocols such as RSTP blocking the port leading to selection of the redundant port connected to the receiver.
To protect against virtual link failure in conjunction with network protocols, use the packet-sampling keyword with the redundant-port command to detect link the viability. For example, when there is a network protocol decision that changes the topology and blocks a link to compensate for failures in the network, the system monitors the traffic to detect the change in network topology and fails over to the redundant port if necessary. It also determines whether the failover is successful. For more information, see Member Link with Non-LAG Partner.
| Copyright © 2008, Juniper Networks, Inc. All rights reserved. Trademark Notice. | |