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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[-- Attachment #1 --]
Hello folks. I just noticed something that I’m sure has been true forever, but I checked and it’s still true on my 12.3-STABLE system.
In the daily run output, I’m 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
vlan0 - A.B.C.D/ pool-A.B.C.D 1172409474 - - 780810867 - - -
vlan1 1500 <Link#8> 90:e2:ba:dd:ee:ff 4317051938 0 0 4879301946 0 0 0
vlan1 - fe80::%vlan1/ fe80::92e2:baff:f 702196 - - 4498316 - - -
vlan1 - 2001:470:e24c hostname 5966892 - - 9302547 - - -
vlan3 1500 <Link#9> 90:e2:ba:dd:ee:ff 230398636 0 0 317573885 0 0 0
vlan3 - fe80::%vlan3/ fe80::92e2:baff:f 399612 - - 4042723 - - -
vlan3 - 2001:470:e24c 2001:470:e24c:66 523819 - - 7747524 - - -
[…]
vlan1 1500 <Link#13> 90:e2:ba:dd:ee:ff 220678168 0 0 525414925 0 0 0
vlan1 - 192.168.11.0 hostname 2931863 - - 6448727 - - -
vlan1 - fe80::%vlan11 fe80::92e2:baff:f 518679 - - 4145688 - - -
vlan1 - 2001:470:e24c 2001:470:e24c:11 614377 - - 7638691 - - -
vlan3 1500 <Link#14> 90:e2:ba:dd:ee:ff 179779 0 0 173578 0 0 0
vlan3 - 192.168.33.0/ hostname 12888 - - 12311 - - -
vlan3 - fe80::%vlan33 fe80::92e2:baff:f 939 - - 26025 - - -
vlan3 - 2001:470:e24c 2001:470:e24c:33: 2227 - - 2915 - - -
Can someone check if this is still so in 13 or CURRENT, and/or let me know if I’m doing something wrong?
- Chris
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<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Hello folks. I just noticed something that I’m sure has been true forever, but I checked and it’s still true on my 12.3-STABLE system.<div class=""><br class=""></div><div class="">In the daily run output, I’m 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:</div><div class=""><br class=""></div><div class=""><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class="">vlan0 1500 <Link#7> 90:e2:ba:</span> <span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class="">dd:ee:ff</span><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class=""> 7898136066 0 0 6455161338 0 0 0 </span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class=""><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class="">vlan0 - A.B.C.D/ pool-A.B.C.D 1172409474 - - 780810867 - - - </span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class=""><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class="">vlan1 1500 <Link#8> 90:e2:ba:dd:ee:ff 4317051938 0 0 4879301946 0 0 0 </span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class=""><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class="">vlan1 - fe80::%vlan1/ fe80::92e2:baff:f 702196 - - 4498316 - - - </span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class=""><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class="">vlan1 - 2001:470:e24c hostname 5966892 - - 9302547 - - - </span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class=""><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class="">vlan3 1500 <Link#9> 90:e2:ba:</span><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class="">dd:ee:ff</span><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class=""> 230398636 0 0 317573885 0 0 0 </span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class=""><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class="">vlan3 - fe80::%vlan3/ fe80::92e2:baff:f 399612 - - 4042723 - - - </span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class=""><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class="">vlan3 - 2001:470:e24c 2001:470:e24c:66 523819 - - 7747524 - - - </span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class=""><font color="#000000" class=""><span style="caret-color: rgb(0, 0, 0);" class="">[…]</span></font></div><div class=""><font color="#000000" class=""><span style="caret-color: rgb(0, 0, 0);" class="">vlan1 1500 <Link#13> 90:e2:ba:</span></font><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class="">dd:ee:ff</span><font color="#000000" class=""><span style="caret-color: rgb(0, 0, 0);" class=""> 220678168 0 0 525414925 0 0 0 </span></font><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class=""><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class="">vlan1 - 192.168.11.0 </span><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class="">hostname</span><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class=""> 2931863 - - 6448727 - - - </span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class=""><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class="">vlan1 - fe80::%vlan11 fe80::92e2:baff:f 518679 - - 4145688 - - - </span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class=""><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class="">vlan1 - 2001:470:e24c 2001:470:e24c:11 614377 - - 7638691 - - - </span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class=""><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class="">vlan3 1500 <Link#14> 90:e2:ba:</span><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class="">dd:ee:ff</span><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class=""> 179779 0 0 173578 0 0 0 </span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class=""><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class="">vlan3 - 192.168.33.0/ </span><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class="">hostname</span><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class=""> 12888 - - 12311 - - - </span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class=""><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class="">vlan3 - fe80::%vlan33 fe80::92e2:baff:f 939 - - 26025 - - - </span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class=""><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class="">vlan3 - 2001:470:e24c 2001:470:e24c:33: 2227 - - 2915 - - - </span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class=""></div><div class=""><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class=""><br class=""></span></div><div class=""><font color="#000000" class=""><span style="caret-color: rgb(0, 0, 0);" class="">Can someone check if this is still so in 13 or CURRENT, and/or let me know if I’m doing something wrong?</span></font></div><div class=""><font color="#000000" class=""><span style="caret-color: rgb(0, 0, 0);" class=""><br class=""></span></font></div><div class=""><font color="#000000" class=""><span style="caret-color: rgb(0, 0, 0);" class=""> - Chris</span></font></div></body></html>
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