Description of problem:
In the output of "ip -d -o link show" and "ip -d -o monitor link" vlan and
macvlan devices are reported with the following form:
"device name" + "@" + "device name of the underlying device".

Since it is perfectly legal for another device to include symbols in their
names, e.g., "@", it is perfectly possible to have a dummy device called:
p1p3.13@p1p3

and a vlan device called p1p3.13 that is being reported as
p1p3.13@p1p3

In the output of "ip -d -o link show" this is disambiguable thanks to the fact
that dummies, vlans and macvlans have their type shown in the final segment:

    21: p1p3.13@p1p3: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state LOWERLAYERDOWN \    link/ether 00:10:18:e1:6c:f4 brd ff:ff:ff:ff:ff:ff\    vlan id 13 <REORDER_HDR>
    23: p1p3.13@p1p3: <BROADCAST,NOARP> mtu 1500 qdisc noop state DOWN \    link/ether 82:17:ed:f9:e8:f3 brd ff:ff:ff:ff:ff:ff\    dummy 

However, the output of "ip -d -o monitor link" doesn't include the type
information for any device (not even for just vlanned and dummy types like
"ip -d -o link show" does). E.g.:
    23: p1p3.13@p1p3: <BROADCAST,NOARP> mtu 1500 qdisc noop state DOWN \    link/ether c2:01:5c:db:bd:39 brd ff:ff:ff:ff:ff:ff
    21: p1p3.13@p1p3: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state LOWERLAYERDOWN \    link/ether 00:10:18:e1:6c:f4 brd ff:ff:ff:ff:ff:ff

Without a priori knowledge (having executed before a detailed link show and
keeping a database by interface index) there is no way to tell that the former
is a dummy and the latter is the vlan.

Version-Release number of selected component (if applicable): all


How reproducible: 100%


Steps to Reproduce:
1. start the monitor "ip -d -o monitor link"
2. Create vlan 13 over a nic (for example named p1p3)
3. Create a dummy called "p1p3.13@p1p3"
4. Check the detailed link monitor output

Actual results:
    23: p1p3.13@p1p3: <BROADCAST,NOARP> mtu 1500 qdisc noop state DOWN \    link/ether c2:01:5c:db:bd:39 brd ff:ff:ff:ff:ff:ff
    21: p1p3.13@p1p3: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state LOWERLAYERDOWN \    link/ether 00:10:18:e1:6c:f4 brd ff:ff:ff:ff:ff:ff


Expected results:
    23: p1p3.13@p1p3: <BROADCAST,NOARP> mtu 1500 qdisc noop state DOWN \    link/ether c2:01:5c:db:bd:39 brd ff:ff:ff:ff:ff:ff\    dummy 
    21: p1p3.13@p1p3: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state LOWERLAYERDOWN \    link/ether 00:10:18:e1:6c:f4 brd ff:ff:ff:ff:ff:ff\    vlan id 13 <REORDER_HDR>