[rancid] Rancid not collecting VLAN info on Cisco ME-3600

[heasley]

Wed, Aug 07, 2013 at 06:49:27PM +0000, Hagen, Skye:
> Rancid 2.3.6 does not collect VLAN information on a Cisco ME-3600 switch.
> This is because the ME-3600 does not support VTP, and returns 'Invalid
> command'. Rancid will only collect VLAN info on switches if the VTP mode
> is transparent or server. The ShowVTP subroutine sets a flag
> ($DO_SHOW_VLAN) if the VTP mode is server or transparent. The ShowVLAN
> routine immediately returns if this flag is not set, bypassing the VLAN
> info.
> 
> My quick and dirty change was to set the flag in ShowVTP, if the type is
> ME-3600. I do this before entering the while loop, so that the flag is set
> before the subroutine exits because of the invalid command test. I'm not
> sure that this is the best way to correct this, but it works in my
> environment.

should the check really be the reversed?  if it _is_ a vtp client, skip
show vlan.

> # This routine parses "show vtp status"
> sub ShowVTP {
>     print STDERR "    In ShowVTP: $_" if ($debug);
> 
>     $DO_SHOW_VLAN = 1 if ($type =~ /^ME-3600X/); # ME-3600 doesn't support
> VTP
>     while (<INPUT>) {
>         tr/\015//d;
>         last if (/^$prompt/);
>         next if (/^(\s*|\s*$cmd\s*)$/);
>         return(1) if /^\s*\^\s*$/;
>         return(1) if (/Line has invalid autocommand /);
>         return(1) if (/(Invalid (input|command) detected|Type help or )/i);
>         #return(1) if ($type !~ /^(2900XL|3500XL|6000)$/);
>         return(-1) if (/command authorization failed/i);
>         next if (/^Configuration last modified by/);
>         # the pager can not be disabled per-session on the PIX
>         if (/^(<-+ More -+>)/) {
>             my($len) = length($1);
>             s/^$1\s{$len}//;
>         }
> 
>         if (/^VTP Operating Mode\s+:\s+(Transparent|Server)/) {
>             $DO_SHOW_VLAN = 1;
>         }
>         ProcessHistory("COMMENTS","keysort","I0","!VTP: $_");
>     }
>     ProcessHistory("COMMENTS","keysort","I0","!\n");
>     return(0);
> }
> 
> 
> 
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