How to use lacp runner with port priority?

[Simon Jones]

Hi all,

I'm using teamd-v1.31(tag v1.31) from source compile from
https://github.com/jpirko/libteam .

This is my network topo:
```
teamd-1
    |              |
    veth11    veth01
    |              |
    |              |
    veth10    veth00
    |              |
teamd-0
```
Which is run team-1 with veth11 and veth01, run team-2 with veth10 and
veth00.

This is my conf:
```
### teamd-0

[root@centos8-20240407 public-libteam]# cat ../lacp-t0.conf
{
    "device":       "team0",
    "runner": {
        "name": "lacp",
                "sys_prio": 5,
        "agg_select_policy": "lacp_prio",
        "active": true,
        "tx_hash": ["eth", "ipv4", "ipv6"]
    },
    "link_watch":       {"name": "ethtool"},
    "ports":        {
        "veth00": {"lacp_prio": 30},
        "veth10": {"lacp_prio": 20}
    }
}

### teamd-1

[root@centos8-20240407 public-libteam]# cat ../lacp-t1.conf
{
    "device":       "team0",
    "runner": {
        "name": "lacp",
                "sys_prio": 66,
        "active": true,
        "tx_hash": ["eth", "ipv4", "ipv6"]
    },
    "link_watch":       {"name": "ethtool"},
    "ports":        {
        "veth01": {},
        "veth11": {}
    }
}
```

In my opinion and code, I think this conf will cause this behavior:
- teamd-0 use lacp, use low system priority, use equal port priority.
- teamd-1 use lacp, use high system priority, use not euqal port priority.
- then veth11 and veth10 will UP, veth01 and veth00 will DOWN.

But in fact, veth11 and veth10 is UP, veth01 and veth00 is also UP.

So:
1) What's wrong with my configure?
2) How to configure use lacp port priority?


----
Simon Jones