Hash key data
Hash key type 10 is a 3-tuple where the hash key data is the contents of these packet header fields:
- 32-bit IPv4 / 128-bit IPv6 source address
- 32-bit IPv4 / 128-bit IPv6 destination address
- 32-bit GREv0 key
For IPv4 packets, hash key data word 0 is always the IPv4 source address, and hash key data word 4 is always the IPv4 destination address. For IPv6 packets, hash key data words 0 – 3 are always the IPv6 source address, and hash key data words 4 – 7 are always the IPv6 destination address. This means that frames sent from IP address A to IP address B will generate a hash value different from frames sent from IP address B to IP address A (if address A and B are different).
Hash key data word 8 is always the GREv0 key.
For IPv4 packets, hash key data words 1 – 3, 5 – 7 and 9 are all zeros for hash key type 10. For IPv6 packets, hash key data word 9 is all zeros for hash key type 10.
Illustration for IPv4 packets
This figure illustrates hash key type 10 for IPv4 packets.
Illustration for IPv6 packets
This figure illustrates hash key type 10 for IPv6 packets.
Hash key type 10 is valid for frames containing an IPv4 packet or an IPv6 packet with a GREv0 packet as payload.