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Date:      Tue, 18 Nov 2008 10:34:24 +0100 (CET)
From:      sthaug@nethelp.no
To:        peterjeremy@optushome.com.au
Cc:        freebsd-stable@freebsd.org
Subject:   Re: Possible regression in ifconfig under7.0 - removes validdefault route
Message-ID:  <20081118.103424.74710091.sthaug@nethelp.no>
In-Reply-To: <20081118081153.GQ51761@server.vk2pj.dyndns.org>
References:  <5FD58BCD6B4C409DA7E7C30150FB10C7@multiplay.co.uk> <20081117.233619.85395429.sthaug@nethelp.no> <20081118081153.GQ51761@server.vk2pj.dyndns.org>

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> >Oh yeah, since we're in wishful thinking mode, I want interface
> >descriptions too...
> 
> Have you looked at the 'name' and 'group' keywords in ifconfig(8)?
> If this isn't what you want, please expand on your wish.

It is not what I want.

On routers, switches and lots of other boxes from most vendors you can
associate a description string with each interface - where interface 
can be a physical port, or for instance a VLAN based interface. This
description string is useful to document things like

- what is the box at the other end of the cable connected to this port
- what is the port at the other end of the cable connected to this port
- what is the circuit id for the circuit this port is connected to
- what is this port used for

etc. Typical example, from one of our switches (Cisco syntax):

interface GigabitEthernet0/12
 description TO: fs1.td  ID: BTN-11510092  TXT: gi1/0/7 EoSDH 50 Mbps
 switchport trunk allowed vlan 123,770,1024,1500,1504,1528,1536

showing the first three points I mentioned above.

Such a description string is can normally be retrieved using SNMP.

Steinar Haug, Nethelp consulting, sthaug@nethelp.no



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