Irf Link And Mpu Redundancy - HP 10500 Series Configuration Manual

Before binding a 10-GE port in a port group to an IRF port or removing it from the IRF port, you must
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shut down all the other 10-GE ports in the same group.
Bring up the ports after you complete the operation.
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40-GE port restrictions
When you use 40-GE port for IRF connection, follow these restrictions and guidelines:
• You can use a 40-GE port as one IRF physical port.
You can use the using tengige command to split a 40-GE port into four 10-GE interfaces. The
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following restrictions apply to these 10-GE interfaces:
You must use all or none of the four 10-GE interfaces as IRF physical ports. The four interfaces
can be bound to different IRF ports.
Before you bind a 10-GE interface to an IRF port or remove it from the IRF port, you must shut
down all the 10-GE interfaces of the 40-GE port. If any of the interfaces is in up state, the bind
or remove action will fail.
Bring up the interfaces after you complete the operation.
• Complete the port split (the using tengige command) or combination (the using fortygige command)
operation before you add the device to an IRF fabric. These operations require a card reboot.
When you perform these operations in an IRF fabric, make sure you understand the impact on the
IRF fabric topology. For more information about 40-GE port split and combination operations, see
Layer 2—LAN Switching Configuration Guide.
Physical port binding mode requirements
When you bind physical ports to an IRF port, follow these restrictions:
• The binding mode of all IRF physical ports bound to an IRF port must be the same (either enhanced
or normal).
The two ends of an IRF link must use the same binding mode.
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To use TRILL, MPLS L2VPN, or VPLS in the IRF fabric, you must configure the IRF physical ports to
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operate in enhanced mode.
For more information about the binding mode, see
physical ports to an IRF
IRF port connecting restrictions
When you connect two neighboring IRF members, connect the physical ports of IRF-port 1 on one
member to the physical ports of IRF-port 2 on the other.
Suppose you have four chassis: A, B, C, and D. IRF-port 1 and IRF-port 2 are represented by A1 and A2
on chassis A, represented by B1 and B2 on chassis B, and so on. To connect the four chassis into a ring
topology of A-B-C-D(A), the IRF link cabling scheme must be one of the following:
A1-B2, B1-C2, C1-D2, and D1-A2.
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A2-B1, B2-C1, C2-D1, and D2-A1.
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IRF link and MPU redundancy

When you configure an IRF fabric, follow these redundancy guidelines:
Make sure each member device has at least one MPU.
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For link redundancy and load sharing, bind up to eight physical ports to one IRF port.
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port."
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"Binding physical ports to IRF ports" and "Adding