Hi All, Last week, Center had a conference call with Guohan to discuss SAI 0.9.2 (thanks Guohan). At the meeting, Guohan suggested to send some of the topics to the mailing list for more discussion.
Please review the following questions/topics and appreciate feedback. 1, FDB aging. MAC&VLAN lookups are usually required to find out the output port when performing Route Nexthop operation. But if the MAC is aged, some vendor’s action is flooding this L3 packet in VLAN, and some vendor’s action is discarding the packet and copy_to_cpu. Shall we define the nexthop/neighbor action after MAC aged? 2, PORT Loopback _sai_port_internal_loopback_mode_t is to define “internal loopback mode”. With this mode, the packets will go through ASIC/NPU and return at PHY or MAC module at egress. It would be good to add another “external loopback mode”. With this mode, the packets will return at PHY or MAC module at ingress. Shall we extend the loopback type to support this? 3, PORT auto-negotiation Currently there are no “auto-negotiation” option on PORT, so can we add this attribute to PORT. 4, LAG schedule mode is it possible to add like “RR(Round Robin) and DLB(Dynamic Load balance)”. DLB LAG is an important option in DC application. 5, LAG number and LAG member number Is it possible to add “LAG member number” attribute to LAG. It should be Read-only attribute to describe the ASIC/NPU capability. And another LAG capability is the LAG number. 6, MLAG Support. Is it possible to add port-isolate function to SAI. We can support MLAG with this port-isolate function. Another, port-isolate function can be used for security. 7, ACL Entry action Currently SAI defines ACL stage as ingress and egress. And there are many actions which should be supported at all ingress stage and egress stage. it will cause limitations here. So it is a issue that how to clearly describe the specified ASIC/NPU ACL capability. Or can we separate these actions from ingress to egress. 8, NextHop group with multicast-support Currently there are nexthop-group module in SAI 0.9.2. and it only support ECMP group type. We need add another type “MULTICAST group type”With which we can support multicast application. Shall we add that? Any feedback are welcome. Yuqiang thanks Centec Networks (suzhou) Co., Ltd. Web： <http://www.centecnetworks.com> www.centecnetworks.com Room13/16,4F,Building B,No.5Xing Han Street, Suzhou Industrial Park,Jiang Su Province,China
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