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Date:      Wed, 29 Jun 2022 10:56:41 -0400
From:      Chris Ross <cross+freebsd@distal.com>
To:        freebsd-net@freebsd.org
Cc:        Chris Ross <cross+freebsd@distal.com>
Subject:   Netstat -i 5-character interface name length?
Message-ID:  <F986B88D-4497-4290-9DE0-3387D734F5B9@distal.com>
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Hello folks.  I just noticed something that I=E2=80=99m sure has been =
true forever, but I checked and it=E2=80=99s still true on my =
12.3-STABLE system.

In the daily run output, I=E2=80=99m seeing the network interface names =
truncated.  This comes from netstat -I apparently only rendering the =
first 5 characters of the interface name.  Many of my systems have =
`vlanNN` interfaces, but they show up as `vlanN` in netstat output.  =
Unfortautnely, I have all of vlan1, vlan3, vlan11, and vlan33 on one of =
my systems (plus others).  This makes it impossible to identify which of =
the lines of output are which interface:

vlan0  1500 <Link#7>      90:e2:ba: dd:ee:ff 7898136066     0     0 =
6455161338     0     0     0=20
vlan0     - A.B.C.D/ pool-A.B.C.D 1172409474     -     - 780810867     - =
    -     -=20
vlan1  1500 <Link#8>      90:e2:ba:dd:ee:ff 4317051938     0     0 =
4879301946     0     0     0=20
vlan1     - fe80::%vlan1/ fe80::92e2:baff:f   702196     -     -  =
4498316     -     -     -=20
vlan1     - 2001:470:e24c hostname           5966892     -     -  =
9302547     -     -     -=20
vlan3  1500 <Link#9>      90:e2:ba:dd:ee:ff 230398636     0     0 =
317573885     0     0     0=20
vlan3     - fe80::%vlan3/ fe80::92e2:baff:f   399612     -     -  =
4042723     -     -     -=20
vlan3     - 2001:470:e24c 2001:470:e24c:66   523819     -     -  7747524 =
    -     -     -=20
[=E2=80=A6]
vlan1  1500 <Link#13>     90:e2:ba:dd:ee:ff 220678168     0     0 =
525414925     0     0     0=20
vlan1     - 192.168.11.0 hostname           2931863     -     -  6448727 =
    -     -     -=20
vlan1     - fe80::%vlan11 fe80::92e2:baff:f   518679     -     -  =
4145688     -     -     -=20
vlan1     - 2001:470:e24c 2001:470:e24c:11   614377     -     -  7638691 =
    -     -     -=20
vlan3  1500 <Link#14>     90:e2:ba:dd:ee:ff   179779     0     0   =
173578     0     0     0=20
vlan3     - 192.168.33.0/ hostname             12888     -     -    =
12311     -     -     -=20
vlan3     - fe80::%vlan33 fe80::92e2:baff:f      939     -     -    =
26025     -     -     -=20
vlan3     - 2001:470:e24c 2001:470:e24c:33:     2227     -     -     =
2915     -     -     -=20

Can someone check if this is still so in 13 or CURRENT, and/or let me =
know if I=E2=80=99m doing something wrong?

             - Chris=

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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html; =
charset=3Dutf-8"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; line-break: after-white-space;" class=3D"">Hello=
 folks. &nbsp;I just noticed something that I=E2=80=99m sure has been =
true forever, but I checked and it=E2=80=99s still true on my =
12.3-STABLE system.<div class=3D""><br class=3D""></div><div class=3D"">In=
 the daily run output, I=E2=80=99m seeing the network interface names =
truncated. &nbsp;This comes from netstat -I apparently only rendering =
the first 5 characters of the interface name. &nbsp;Many of my systems =
have `vlanNN` interfaces, but they show up as `vlanN` in netstat output. =
&nbsp;Unfortautnely, I have all of vlan1, vlan3, vlan11, and vlan33 on =
one of my systems (plus others). &nbsp;This makes it impossible to =
identify which of the lines of output are which interface:</div><div =
class=3D""><br class=3D""></div><div class=3D""><span =
style=3D"caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class=3D"">vlan0=
 &nbsp;1500 &lt;Link#7&gt; =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;90:e2:ba:</span>&nbsp;<span =
style=3D"caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" =
class=3D"">dd:ee:ff</span><span style=3D"caret-color: rgb(0, 0, 0); =
color: rgb(0, 0, 0);" class=3D"">&nbsp;7898136066 =
&nbsp;&nbsp;&nbsp;&nbsp;0 &nbsp;&nbsp;&nbsp;&nbsp;0 6455161338 =
&nbsp;&nbsp;&nbsp;&nbsp;0 &nbsp;&nbsp;&nbsp;&nbsp;0 =
&nbsp;&nbsp;&nbsp;&nbsp;0&nbsp;</span><br style=3D"caret-color: rgb(0, =
0, 0); color: rgb(0, 0, 0);" class=3D""><span style=3D"caret-color: =
rgb(0, 0, 0); color: rgb(0, 0, 0);" class=3D"">vlan0 =
&nbsp;&nbsp;&nbsp;&nbsp;- A.B.C.D/ pool-A.B.C.D 1172409474 =
&nbsp;&nbsp;&nbsp;&nbsp;- &nbsp;&nbsp;&nbsp;&nbsp;- 780810867 =
&nbsp;&nbsp;&nbsp;&nbsp;- &nbsp;&nbsp;&nbsp;&nbsp;- =
&nbsp;&nbsp;&nbsp;&nbsp;-&nbsp;</span><br style=3D"caret-color: rgb(0, =
0, 0); color: rgb(0, 0, 0);" class=3D""><span style=3D"caret-color: =
rgb(0, 0, 0); color: rgb(0, 0, 0);" class=3D"">vlan1 &nbsp;1500 =
&lt;Link#8&gt; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;90:e2:ba:dd:ee:ff =
4317051938 &nbsp;&nbsp;&nbsp;&nbsp;0 &nbsp;&nbsp;&nbsp;&nbsp;0 =
4879301946 &nbsp;&nbsp;&nbsp;&nbsp;0 &nbsp;&nbsp;&nbsp;&nbsp;0 =
&nbsp;&nbsp;&nbsp;&nbsp;0&nbsp;</span><br style=3D"caret-color: rgb(0, =
0, 0); color: rgb(0, 0, 0);" class=3D""><span style=3D"caret-color: =
rgb(0, 0, 0); color: rgb(0, 0, 0);" class=3D"">vlan1 =
&nbsp;&nbsp;&nbsp;&nbsp;- fe80::%vlan1/ fe80::92e2:baff:f =
&nbsp;&nbsp;702196 &nbsp;&nbsp;&nbsp;&nbsp;- &nbsp;&nbsp;&nbsp;&nbsp;- =
&nbsp;4498316 &nbsp;&nbsp;&nbsp;&nbsp;- &nbsp;&nbsp;&nbsp;&nbsp;- =
&nbsp;&nbsp;&nbsp;&nbsp;-&nbsp;</span><br style=3D"caret-color: rgb(0, =
0, 0); color: rgb(0, 0, 0);" class=3D""><span style=3D"caret-color: =
rgb(0, 0, 0); color: rgb(0, 0, 0);" class=3D"">vlan1 =
&nbsp;&nbsp;&nbsp;&nbsp;- 2001:470:e24c hostname &nbsp; &nbsp; &nbsp; =
&nbsp; &nbsp; 5966892 &nbsp;&nbsp;&nbsp;&nbsp;- =
&nbsp;&nbsp;&nbsp;&nbsp;- &nbsp;9302547 &nbsp;&nbsp;&nbsp;&nbsp;- =
&nbsp;&nbsp;&nbsp;&nbsp;- &nbsp;&nbsp;&nbsp;&nbsp;-&nbsp;</span><br =
style=3D"caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class=3D""><span=
 style=3D"caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" =
class=3D"">vlan3 &nbsp;1500 &lt;Link#9&gt; =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;90:e2:ba:</span><span style=3D"caret-color: =
rgb(0, 0, 0); color: rgb(0, 0, 0);" class=3D"">dd:ee:ff</span><span =
style=3D"caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" =
class=3D"">&nbsp;230398636 &nbsp;&nbsp;&nbsp;&nbsp;0 =
&nbsp;&nbsp;&nbsp;&nbsp;0 317573885 &nbsp;&nbsp;&nbsp;&nbsp;0 =
&nbsp;&nbsp;&nbsp;&nbsp;0 &nbsp;&nbsp;&nbsp;&nbsp;0&nbsp;</span><br =
style=3D"caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class=3D""><span=
 style=3D"caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" =
class=3D"">vlan3 &nbsp;&nbsp;&nbsp;&nbsp;- fe80::%vlan3/ =
fe80::92e2:baff:f &nbsp;&nbsp;399612 &nbsp;&nbsp;&nbsp;&nbsp;- =
&nbsp;&nbsp;&nbsp;&nbsp;- &nbsp;4042723 &nbsp;&nbsp;&nbsp;&nbsp;- =
&nbsp;&nbsp;&nbsp;&nbsp;- &nbsp;&nbsp;&nbsp;&nbsp;-&nbsp;</span><br =
style=3D"caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class=3D""><span=
 style=3D"caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" =
class=3D"">vlan3 &nbsp;&nbsp;&nbsp;&nbsp;- 2001:470:e24c =
2001:470:e24c:66 &nbsp; 523819 &nbsp;&nbsp;&nbsp;&nbsp;- =
&nbsp;&nbsp;&nbsp;&nbsp;- &nbsp;7747524 &nbsp;&nbsp;&nbsp;&nbsp;- =
&nbsp;&nbsp;&nbsp;&nbsp;- &nbsp;&nbsp;&nbsp;&nbsp;-&nbsp;</span><br =
style=3D"caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class=3D""><font=
 color=3D"#000000" class=3D""><span style=3D"caret-color: rgb(0, 0, 0);" =
class=3D"">[=E2=80=A6]</span></font></div><div class=3D""><font =
color=3D"#000000" class=3D""><span style=3D"caret-color: rgb(0, 0, 0);" =
class=3D"">vlan1 &nbsp;1500 &lt;Link#13&gt; =
&nbsp;&nbsp;&nbsp;&nbsp;90:e2:ba:</span></font><span style=3D"caret-color:=
 rgb(0, 0, 0); color: rgb(0, 0, 0);" class=3D"">dd:ee:ff</span><font =
color=3D"#000000" class=3D""><span style=3D"caret-color: rgb(0, 0, 0);" =
class=3D"">&nbsp;220678168 &nbsp;&nbsp;&nbsp;&nbsp;0 =
&nbsp;&nbsp;&nbsp;&nbsp;0 525414925 &nbsp;&nbsp;&nbsp;&nbsp;0 =
&nbsp;&nbsp;&nbsp;&nbsp;0 =
&nbsp;&nbsp;&nbsp;&nbsp;0&nbsp;</span></font><br style=3D"caret-color: =
rgb(0, 0, 0); color: rgb(0, 0, 0);" class=3D""><span style=3D"caret-color:=
 rgb(0, 0, 0); color: rgb(0, 0, 0);" class=3D"">vlan1 =
&nbsp;&nbsp;&nbsp;&nbsp;- 192.168.11.0&nbsp;</span><span =
style=3D"caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" =
class=3D"">hostname</span><span style=3D"caret-color: rgb(0, 0, 0); =
color: rgb(0, 0, 0);" class=3D"">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; =
&nbsp;2931863 &nbsp;&nbsp;&nbsp;&nbsp;- &nbsp;&nbsp;&nbsp;&nbsp;- =
&nbsp;6448727 &nbsp;&nbsp;&nbsp;&nbsp;- &nbsp;&nbsp;&nbsp;&nbsp;- =
&nbsp;&nbsp;&nbsp;&nbsp;-&nbsp;</span><br style=3D"caret-color: rgb(0, =
0, 0); color: rgb(0, 0, 0);" class=3D""><span style=3D"caret-color: =
rgb(0, 0, 0); color: rgb(0, 0, 0);" class=3D"">vlan1 =
&nbsp;&nbsp;&nbsp;&nbsp;- fe80::%vlan11 fe80::92e2:baff:f =
&nbsp;&nbsp;518679 &nbsp;&nbsp;&nbsp;&nbsp;- &nbsp;&nbsp;&nbsp;&nbsp;- =
&nbsp;4145688 &nbsp;&nbsp;&nbsp;&nbsp;- &nbsp;&nbsp;&nbsp;&nbsp;- =
&nbsp;&nbsp;&nbsp;&nbsp;-&nbsp;</span><br style=3D"caret-color: rgb(0, =
0, 0); color: rgb(0, 0, 0);" class=3D""><span style=3D"caret-color: =
rgb(0, 0, 0); color: rgb(0, 0, 0);" class=3D"">vlan1 =
&nbsp;&nbsp;&nbsp;&nbsp;- 2001:470:e24c 2001:470:e24c:11 &nbsp; 614377 =
&nbsp;&nbsp;&nbsp;&nbsp;- &nbsp;&nbsp;&nbsp;&nbsp;- &nbsp;7638691 =
&nbsp;&nbsp;&nbsp;&nbsp;- &nbsp;&nbsp;&nbsp;&nbsp;- =
&nbsp;&nbsp;&nbsp;&nbsp;-&nbsp;</span><br style=3D"caret-color: rgb(0, =
0, 0); color: rgb(0, 0, 0);" class=3D""><span style=3D"caret-color: =
rgb(0, 0, 0); color: rgb(0, 0, 0);" class=3D"">vlan3 &nbsp;1500 =
&lt;Link#14&gt; &nbsp;&nbsp;&nbsp;&nbsp;90:e2:ba:</span><span =
style=3D"caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" =
class=3D"">dd:ee:ff</span><span style=3D"caret-color: rgb(0, 0, 0); =
color: rgb(0, 0, 0);" class=3D"">&nbsp;&nbsp; 179779 =
&nbsp;&nbsp;&nbsp;&nbsp;0 &nbsp;&nbsp;&nbsp;&nbsp;0 &nbsp;&nbsp;173578 =
&nbsp;&nbsp;&nbsp;&nbsp;0 &nbsp;&nbsp;&nbsp;&nbsp;0 =
&nbsp;&nbsp;&nbsp;&nbsp;0&nbsp;</span><br style=3D"caret-color: rgb(0, =
0, 0); color: rgb(0, 0, 0);" class=3D""><span style=3D"caret-color: =
rgb(0, 0, 0); color: rgb(0, 0, 0);" class=3D"">vlan3 =
&nbsp;&nbsp;&nbsp;&nbsp;- 192.168.33.0/&nbsp;</span><span =
style=3D"caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" =
class=3D"">hostname</span><span style=3D"caret-color: rgb(0, 0, 0); =
color: rgb(0, 0, 0);" class=3D"">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; =
&nbsp; &nbsp;12888 &nbsp;&nbsp;&nbsp;&nbsp;- &nbsp;&nbsp;&nbsp;&nbsp;- =
&nbsp;&nbsp;&nbsp;12311 &nbsp;&nbsp;&nbsp;&nbsp;- =
&nbsp;&nbsp;&nbsp;&nbsp;- &nbsp;&nbsp;&nbsp;&nbsp;-&nbsp;</span><br =
style=3D"caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class=3D""><span=
 style=3D"caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" =
class=3D"">vlan3 &nbsp;&nbsp;&nbsp;&nbsp;- fe80::%vlan33 =
fe80::92e2:baff:f &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;939 =
&nbsp;&nbsp;&nbsp;&nbsp;- &nbsp;&nbsp;&nbsp;&nbsp;- =
&nbsp;&nbsp;&nbsp;26025 &nbsp;&nbsp;&nbsp;&nbsp;- =
&nbsp;&nbsp;&nbsp;&nbsp;- &nbsp;&nbsp;&nbsp;&nbsp;-&nbsp;</span><br =
style=3D"caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class=3D""><span=
 style=3D"caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" =
class=3D"">vlan3 &nbsp;&nbsp;&nbsp;&nbsp;- 2001:470:e24c =
2001:470:e24c:33: &nbsp;&nbsp;&nbsp;&nbsp;2227 &nbsp;&nbsp;&nbsp;&nbsp;- =
&nbsp;&nbsp;&nbsp;&nbsp;- &nbsp;&nbsp;&nbsp;&nbsp;2915 =
&nbsp;&nbsp;&nbsp;&nbsp;- &nbsp;&nbsp;&nbsp;&nbsp;- =
&nbsp;&nbsp;&nbsp;&nbsp;-&nbsp;</span><br style=3D"caret-color: rgb(0, =
0, 0); color: rgb(0, 0, 0);" class=3D""></div><div class=3D""><span =
style=3D"caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class=3D""><br =
class=3D""></span></div><div class=3D""><font color=3D"#000000" =
class=3D""><span style=3D"caret-color: rgb(0, 0, 0);" class=3D"">Can =
someone check if this is still so in 13 or CURRENT, and/or let me know =
if I=E2=80=99m doing something wrong?</span></font></div><div =
class=3D""><font color=3D"#000000" class=3D""><span style=3D"caret-color: =
rgb(0, 0, 0);" class=3D""><br class=3D""></span></font></div><div =
class=3D""><font color=3D"#000000" class=3D""><span style=3D"caret-color: =
rgb(0, 0, 0);" class=3D"">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; =
&nbsp;- Chris</span></font></div></body></html>=

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