On 2020-11-17 2:00 p.m., Joergen Andreasen wrote:
The 11/17/2020 14:30, Xiaoliang Yang wrote:
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This patch introduce a redundancy flow action to implement frame
replication and elimination for reliability, which is defined in
IEEE P802.1CB.
There are two modes for redundancy action: generator and recover mode.
Generator mode add redundancy tag and replicate the frame to different
egress ports. Recover mode drop the repeat frames and remove redundancy
tag from the frame.
Below is the setting example in user space:
> tc qdisc add dev swp0 clsact
> tc filter add dev swp0 ingress protocol 802.1Q flower \
skip_hw dst_mac 00:01:02:03:04:05 vlan_id 1 \
action redundancy generator split dev swp1 dev swp2
> tc filter add dev swp0 ingress protocol 802.1Q flower
skip_hw dst_mac 00:01:02:03:04:06 vlan_id 1 \
action redundancy recover
Please CC _all_ maintainers for best feedback (+Cc Cong)
and it is unnecessary to cc lists like linux-kernel (removed).
We already have mirroring + ability to add/pop tags.
Would the following not work?
Example, generator mode:
tc filter add dev swp0 ingress protocol 802.1Q flower \
action vlan push id 789 protocol 802.1q \
action mirred egress mirror dev swp1 \
action mirred egress mirror dev swp2
recovery mode:
tc filter add dev swp0 ingress protocol 802.1Q flower \
skip_hw dst_mac 00:01:02:03:04:06 vlan_id 1 \
actopm vlan pop
cheers,
jamal
