Implementing Frrp; Frrp Configuration - Dell Force10 S4810P Configuration Manual

Table 19-1. FRRP Components (continued)
Concept
Ring Status
Ring Health-check Frame
(RHF)

Implementing FRRP

• FRRP is media and speed independent.
• FRRP is a Dell Force10 proprietary protocol that does not interoperate with any other vendor.
• Spanning Tree must be disabled on both Primary and Secondary interfaces before FRRP is enabled.
• All ring ports must be Layer 2 ports. This is required for both Master and Transit nodes.
• A VLAN configured as control VLAN for a ring cannot be configured as a control or member VLAN
for any other ring.
• The Control VLAN is used to carry any data traffic; it carries only RHFs.
• The Control VLAN cannot have members that are not ring ports.
• If multiple rings share one or more member VLANs, they cannot share any links between them.
• Member VLANs across multiple rings are not supported in Master nodes.
• Each ring has only one Master node; all others are transit nodes.

FRRP Configuration

These are the tasks to configure FRRP.
• Create the FRRP group
• Configure the Control VLAN
• Configure Primary and Secondary ports
• Configure and add the Member VLANs
Explanation
The state of the FRRP ring. During initialization/configuration, the default ring
status is Ring-down (disabled). The Primary and Secondary interfaces, Control
VLAN, and Master and Transit node information must be configured for the ring
to be up.
• Ring-Up: Ring is up and operational
• Ring-Down: Ring is broken or not set up
Two types of RHFs are generated by the Master node. RHFs never loop the ring
because they terminate at the Master node's secondary port.
Hello RHF (HRHF): These frames are processed only on the Master node's
•
Secondary port. The Transit nodes pass the HRHF through the without
processing it. An HRHF is sent at every Hello interval.
• Topology Change RHF (TCRHF): These frames contains ring status,
keepalive, and the Control and Member VLAN hash. It is processed at each
node of the ring. TCRHFs are sent out the Master Node's Primary and
Secondary interface when the ring is declared in a Failed state with the same
sequence number, on any topology change to ensure all Transit nodes receive
it. There is no periodic transmission of TCRHFs. The TCRHFs are sent on
triggered events of ring failure or ring restoration only.
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