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man: fix vale(4) port naming

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The current documentation describing the syntax of a VALE port is wrong.
This patch fixes it to make it consistent.

Approved by:	bcr, gnn (mentor)
Differential Revision:	https://reviews.freebsd.org/D17411
This commit is contained in:
vmaffione 2018-10-21 17:15:09 +00:00
parent 0d8193b3ed
commit fdc923eff7
1 changed files with 12 additions and 14 deletions
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26
share/man/man4/vale.4
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@ -59,18 +59,18 @@ API.
.Pp
.Nm
ports are named
.Pa vale[bdg:][port]
.Pa valeSSS:PPP
where
.Pa vale
is the prefix indicating a VALE switch rather than a standard interface,
.Pa bdg
.Pa SSS
indicates a specific switch (the colon is a separator),
and
.Pa port
.Pa PPP
indicates a port within the switch.
Bridge and port names are arbitrary strings, the only
constraint being that the full name must fit within 16
characters.
Both SSS and PPP have the form [0-9a-zA-Z_]+ , the string cannot
exceed IFNAMSIZ characters, and PPP cannot be the name of any
existing OS network interface.
.Pp
See
.Xr netmap 4
@ -97,23 +97,21 @@ Set to non-zero values to enable in-kernel diagnostics.
Create one switch, with a traffic generator connected to one
port, and a netmap-enabled tcpdump instance on another port:
.Bd -literal -offset indent
tcpdump -ni vale-a:1 &
pkt-gen -i vale-a:0 -f tx &
tcpdump -ni valea:1 &
pkt-gen -i valea:0 -f tx &
.Ed
.Pp
Create two switches,
each connected to two qemu machines on different ports.
.Bd -literal -offset indent
qemu -net nic -net netmap,ifname=vale-1:a ... &
qemu -net nic -net netmap,ifname=vale-1:b ... &
qemu -net nic -net netmap,ifname=vale-2:c ... &
qemu -net nic -net netmap,ifname=vale-2:d ... &
qemu -net nic -net netmap,ifname=vale1:a ... &
qemu -net nic -net netmap,ifname=vale1:b ... &
qemu -net nic -net netmap,ifname=vale2:c ... &
qemu -net nic -net netmap,ifname=vale2:d ... &
.Ed
.Sh SEE ALSO
.Xr netmap 4
.Pp
.Xr http://info.iet.unipi.it/~luigi/vale/
.Pp
Luigi Rizzo, Giuseppe Lettieri: VALE, a switched ethernet for virtual machines,
June 2012, http://info.iet.unipi.it/~luigi/vale/
.Sh AUTHORS