Aggregated Ethernet Link Protection
Learn how to provide link protection for aggregated Ethernet Interfaces and configure the link protection for aggregated Ethernet interfaces. Learn also how to configure primary and backup links for aggregated Ethernet interfaces.
You can configure link protection for aggregated Ethernet interfaces to provide QoS on the links during operation.
On aggregated Ethernet interfaces, you designate a primary and backup link to support link protection. Egress traffic passes only through the designated primary link. This includes transit traffic and locally generated traffic on the router or switch. When the primary link fails, traffic is routed through the backup link. Because some traffic loss is unavoidable, egress traffic is not automatically routed back to the primary link when the primary link is reestablished. Instead, you manually control when traffic should be diverted back to the primary link from the designated backup link.
Use Feature Explorer to confirm platform and release support for specific features.
Use the following table to review platform-specific behaviors for your platform:
Platform-Specific Link Protection Behavior
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Platform |
Difference |
|---|---|
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ACX Series |
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Configuring Link Protection for Aggregated Ethernet Interfaces
Aggregated Ethernet interfaces support link protection to ensure QoS on the interface.
To configure link protection:
See Also
Configuring Primary and Backup Links for Link Aggregated Ethernet Interfaces
To configure link protection, you must specify a primary and a secondary, or backup, link.
To configure a primary link and a backup link:
Reverting Traffic to a Primary Link When Traffic is Passing Through a Backup Link
On aggregated Ethernet interfaces, you designate a primary and backup link to support link protection. Egress traffic passes only through the designated primary link. This includes transit traffic and locally generated traffic on the router or switch. When the primary link fails, traffic is routed through the backup link. Because some traffic loss is unavoidable, egress traffic is not automatically routed back to the primary link when the primary link is reestablished. Instead, you manually control when traffic should be diverted back to the primary link from the designated backup link.
To manually control when traffic should be diverted back to the primary link from the designated backup link, enter the following operational command:
user@host> request interface revert aex
See Also
Disabling Link Protection for Aggregated Ethernet Interfaces
To disable link protection, issue the delete interfaces aex
aggregated-ether-options link-protection configuration command.
user@host# delete interfaces aex aggregated-ether-options link-protection