Important Frrp Points - Dell Force10 C150 Configuration Manual

In the example shown in
its own Control VLAN running on another ring. A Member VLAN that spans both rings is added as a
Member VLAN to both FRRP groups. Switch R3 has two instances of FRRP running on it: one for each
ring. The example topology that follows shows R3 assuming the role of a Transit node for both FRRP 101
and FRRP 202.
Figure 15-2. Example of Multiple Rings Connected by Single Switch
TRANSIT
R7
Secondary
Forwarding
TRANSIT
R6

Important FRRP Points

FRRP provides a convergence time that can generally range between 150ms and 1500ms. The Master node
originates a high-speed frame that circulates around the ring. This frame, appropriately, sets up or breaks
down the ring.
• A single FRRP flap will occur wen a line card is reset or a stack unit fails over to the standby.
338 | Force10 Resilient Ring Protocol
Figure 15-2, FRRP 101 is a ring with its own Control VLAN, and FRRP 202 has
TRANSIT
R3
Secondary
Forwarding
Primary
Forwarding
Primary
Forwarding
Secondary
Forwarding
FRRP 101
MASTER
Primary
Secondary
Forwarding
Blocking
Primary
Forwarding
Forwarding
TRANSIT
R3
Secondary Secondary
Forwarding
Forwarding
Primary
Forwarding
Secondary
Forwarding
TRANSIT
R4
Primary
Forwarding
Primary
Forwarding
FRRP 202
MASTER
Secondary
R5
Blocking
R1
Ring 101
Direction
Primary
TRANSIT
R2