Hunt Group Example

Hunt Group Example

See Figure�48. One port in the hunt group will be designated as the base port or flood port. All flood traffic for all VLANs is sent through this port only. All ports are members of all VLANs associated with the hunt group base port. There are 8 non-member Forwarding Engines. Load sharing is accomplished by using the combination of the Source Forwarding engine and the Destination MAC Address to assign a hunt group port. Users A and B are associated with FE#9 and therefore the first port in the hunt group will be used for unicast packets from A to Destination E and from B to E. Users C and D are associated with FE#10 and therefore the second port in the hunt group will be used for unicast packets from C to E and D to E.

When MAC Address E is learned, it is assigned to the first hunt group port for FE#1, the second hunt group port for FE#2, the first port for FE#3, the second port for FE#5, the first port for FE#7, the second port for FE#8, the first for FE#9, and the second port for FE#10. The second destination MAC Address is round-robin assigned in the same fashion and so on.

Figure�48:�Slot to Fabric Port Relationship

Table�37:�Module Forwarding Engines and Fabric Ports �
Module Type	Total Number of forwarding engines	Number of Fabric Ports	Description
80-series M8000R Supervisor	2	1	FORE port, CPU
80-series 24 port 10/100Mbps TX and 100Mbps FX	2	2	1 forwarding engine per fabric port
80-series 48 port 10/100Mbps	4	2	2 forwarding engines per fabric port
80-series 4 port Gigabit Fiber or TX	4	2	2 forwarding engines per fabric port
80-series 8 port Gigabit Fiber or TX	8	2	4 forwarding engines per fabric port
50-series 10 port 100Mbps FX(layer 2)	1	1	1 forwarding engine to 1 fabric port only
50-series 10 port 100Mbps FX (layer 3)	2	1	2 forwarding engines to 1 fabric port only
50-series 12 port 10/100 TX (layer 3)	2	1	2 forwarding engines to 1 fabric port
50-series 2 port Gigabit Fiber (layer 2)	2	2	1 forwarding engine to 1 fabric port
50-series 2 port Gigabit Fiber (layer 3)	4	2	1 forwarding engine to 1 fabric port
50-series 4 port Gigabit Fiber (layer 2)	4	2	2 forwarding engines per fabric port
50-series 20 port 10/100Mbps TX (layer 2)	2	2	1 forwarding engine per fabric port

Note: All 80-series media modules are L3 capable.

Figure�49:�Load Sharing Example