Attachment 640813 Details for Bug 859182 – linux-2.6/Documentation/networking/bonding.txt vs. README.bonding

[patch] linux-2.6/Documentation/networking/bonding.txt vs. README.bonding

bonding.txt.diff (text/plain), 2.14 KB, created by Account closed by user on 2012-11-08 13:39:04 UTC

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Creator: Account closed by user

Created: 2012-11-08 13:39:04 UTC

Size: 2.14 KB

patch

obsolete

>--- README.bonding	2012-11-08 12:59:57.000000000 +0100
>+++ /home/xose/curre/linux-2.6/Documentation/networking/bonding.txt	2012-10-03 11:19:20.043670323 +0200
>@@ -752,12 +752,22 @@ xmit_hash_policy
> 		protocol information to generate the hash.
> 
> 		Uses XOR of hardware MAC addresses and IP addresses to
>-		generate the hash.  The formula is
>+		generate the hash.  The IPv4 formula is
> 
> 		(((source IP XOR dest IP) AND 0xffff) XOR
> 			( source MAC XOR destination MAC ))
> 				modulo slave count
> 
>+		The IPv6 formula is
>+
>+		hash = (source ip quad 2 XOR dest IP quad 2) XOR
>+		       (source ip quad 3 XOR dest IP quad 3) XOR
>+		       (source ip quad 4 XOR dest IP quad 4)
>+
>+		(((hash >> 24) XOR (hash >> 16) XOR (hash >> 8) XOR hash)
>+			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
>@@ -778,19 +788,29 @@ xmit_hash_policy
> 		slaves, although a single connection will not span
> 		multiple slaves.
> 
>-		The formula for unfragmented TCP and UDP packets is
>+		The formula for unfragmented IPv4 TCP and UDP packets is
> 
> 		((source port XOR dest port) XOR
> 			 ((source IP XOR dest IP) AND 0xffff)
> 				modulo slave count
> 
>-		For fragmented TCP or UDP packets and all other IP
>-		protocol traffic, the source and destination port
>+		The formula for unfragmented IPv6 TCP and UDP packets is
>+
>+		hash = (source port XOR dest port) XOR
>+		       ((source ip quad 2 XOR dest IP quad 2) XOR
>+			(source ip quad 3 XOR dest IP quad 3) XOR
>+			(source ip quad 4 XOR dest IP quad 4))
>+
>+		((hash >> 24) XOR (hash >> 16) XOR (hash >> 8) XOR hash)
>+			modulo slave count
>+
>+		For fragmented TCP or UDP packets and all other IPv4 and
>+		IPv6 protocol traffic, the source and destination port
> 		information is omitted.  For non-IP traffic, the
> 		formula is the same as for the layer2 transmit hash
> 		policy.
> 
>-		This policy is intended to mimic the behavior of
>+		The IPv4 policy is intended to mimic the behavior of
> 		certain switches, notably Cisco switches with PFC2 as
> 		well as some Foundry and IBM products.
>

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Attachments on bug 859182: 640813