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authorHongjun Ni <hongjun.ni@intel.com>2018-01-23 19:17:23 +0800
committerHongjun Ni <hongjun.ni@intel.com>2018-02-02 02:20:46 +0000
commit647f609a11e2afb91a5216ca99d0705a3e1212a7 (patch)
tree149ab0443d42a8d8a7620c8bce917ec87edf1ae7 /src/plugins/lb/lb.api
parent91389ac2c28ae10f2b7f766e4dfe7a7fd96dc5e0 (diff)
Add L3DSR feature in LB plugin
L3DSR is used to overcome Layer 2 limitations of Direct Server Return Load Balancing. It maps VIP to DSCP bits, and reuse TOS bits to transfer it to server, and then server will get VIP from DSCP-to-VIP mapping. Please refer to https://www.nanog.org/meetings/nanog51/presentations/Monday/NANOG51.Talk45.nanog51-Schaumann.pdf Change-Id: I403ffeadfb04ed0265086eb2dc41f2e17f8f34cb Signed-off-by: Hongjun Ni <hongjun.ni@intel.com>
Diffstat (limited to 'src/plugins/lb/lb.api')
-rw-r--r--src/plugins/lb/lb.api14
1 files changed, 8 insertions, 6 deletions
diff --git a/src/plugins/lb/lb.api b/src/plugins/lb/lb.api
index f5036edf79d..101cee88ded 100644
--- a/src/plugins/lb/lb.api
+++ b/src/plugins/lb/lb.api
@@ -23,9 +23,10 @@ autoreply define lb_conf
/** \brief Add a virtual address (or prefix)
@param client_index - opaque cookie to identify the sender
@param context - sender context, to match reply w/ request
- @param ip_prefix - IP address (IPv4 in lower order 32 bits).
- @param prefix_length - IP prefix length (96 + 'IPv4 prefix length' for IPv4).
- @param is_gre4 - Encap is ip4 GRE (ip6 GRE otherwise).
+ @param ip_prefix - IP address (IPv4 in lower order 32 bits).
+ @param prefix_length - IP prefix length (96 + 'IPv4 prefix length' for IPv4).
+ @param encap - Encap is ip4 GRE(0) or ip6 GRE(1) or L3DSR(2).
+ @param dscp - DSCP bit corresponding to VIP(applicable in L3DSR mode only).
@param new_flows_table_length - Size of the new connections flow table used
for this VIP (must be power of 2).
@param is_del - The VIP should be removed.
@@ -35,7 +36,8 @@ autoreply define lb_add_del_vip {
u32 context;
u8 ip_prefix[16];
u8 prefix_length;
- u8 is_gre4;
+ u8 encap;
+ u8 dscp;
u32 new_flows_table_length;
u8 is_del;
};
@@ -43,8 +45,8 @@ autoreply define lb_add_del_vip {
/** \brief Add an application server for a given VIP
@param client_index - opaque cookie to identify the sender
@param context - sender context, to match reply w/ request
- @param vip_ip_prefix - VIP IP address (IPv4 in lower order 32 bits).
- @param vip_ip_prefix - VIP IP prefix length (96 + 'IPv4 prefix length' for IPv4).
+ @param vip_ip_prefix - VIP IP address (IPv4 in lower order 32 bits).
+ @param vip_ip_prefix - VIP IP prefix length (96 + 'IPv4 prefix length' for IPv4).
@param as_address - The application server address (IPv4 in lower order 32 bits).
@param is_del - The AS should be removed.
*/