Dell C9000 series, Reference Manual

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Force10 OS Resilient Ring Protocol
(FRRP)
Force10 OS resilient ring protocol (FRRP) is a proprietary protocol for that offers fast convergence in a Layer 2
network without having to run the spanning tree protocol (STP).
The resilient ring protocol is an efficient protocol that transmits a high-speed token across a ring to verify the
link status. All the intelligence is contained in the master node with practically no intelligence required of the
transit mode.
Important Points to Remember
• FRRP is media- and speed-independent.
• FRRP is a Dell Networking proprietary protocol that does not interoperate with any other vendor.
• Spanning Tree must be disabled on both primary and secondary interfaces before Resilient Ring
protocol is enabled.
• A VLAN configured as the control VLAN for a ring cannot be configured as a control or member VLAN
for any other ring.
• Member VLANs across multiple rings are not supported in Master nodes.
• If multiple rings share one or more member VLANs, they cannot share any links between them.
• Each ring can have only one Master node; all others are Transit nodes.
• FRRP is not supported on port extender (PE) ports.
Topics:
• clear frrp
• debug frrp
• description
• disable
• interface
• member-vlan
• mode
• protocol frrp
• show frrp
• timer
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