diff options
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/networking/bonding.txt | 29 |
1 files changed, 27 insertions, 2 deletions
diff --git a/Documentation/networking/bonding.txt b/Documentation/networking/bonding.txt index 11340625e36..6cc30e0d579 100644 --- a/Documentation/networking/bonding.txt +++ b/Documentation/networking/bonding.txt @@ -554,6 +554,30 @@ xmit_hash_policy This algorithm is 802.3ad compliant. + layer2+3 + + This policy uses a combination of layer2 and layer3 + protocol information to generate the hash. + + Uses XOR of hardware MAC addresses and IP addresses to + generate the hash. The formula is + + (((source IP XOR dest IP) AND 0xffff) XOR + ( source MAC XOR destination MAC )) + modulo slave count + + This algorithm will place all traffic to a particular + network peer on the same slave. For non-IP traffic, + the formula is the same as for the layer2 transmit + hash policy. + + This policy is intended to provide a more balanced + distribution of traffic than layer2 alone, especially + in environments where a layer3 gateway device is + required to reach most destinations. + + This algorithm is 802.3ad complient. + layer3+4 This policy uses upper layer protocol information, @@ -589,8 +613,9 @@ xmit_hash_policy or may not tolerate this noncompliance. The default value is layer2. This option was added in bonding -version 2.6.3. In earlier versions of bonding, this parameter does -not exist, and the layer2 policy is the only policy. + version 2.6.3. In earlier versions of bonding, this parameter + does not exist, and the layer2 policy is the only policy. The + layer2+3 value was added for bonding version 3.2.2. 3. Configuring Bonding Devices |