netdisco-users Digest, Vol 106, Issue 7

netdisco-users-request Tue, 28 Apr 2015 07:29:39 -0700

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Today's Topics:

   1. Re: SSHCollector Issues (Oliver Gorwits)
   2. Re: Fiber Ring Maps (Oliver Gorwits)
   3. Re: macsuck on a cisco 4500-X fails (Oliver Gorwits)
   4. Re: Fwd: ND2 Worker configuration and Server Performance
      problems (Oliver Gorwits)
   5. Re: ND2 Worker configuration and Server Performance       problems
      (Tobias Gerlach)

--- Begin Message ---
Hi Andrew,

On 2015-04-20 21:08, Graybeal, Andrew C. wrote:
Random thought - does the device I'm collecting from need to be
"discovered" or exist in the DB already in some way? Do I need to do
the manual topology import?
Certainly, the device will need to exist (be discovered) in Netdiscoprior to the sshcollector run.
Perhaps run the script with DBIC_TRACE=1 in the environment to seewhat's happening with the database.
regards,
oliver.
--- End Message ---

--- Begin Message ---
Hi Jeff,

On 2015-04-13 21:03, Jeff Gibson wrote:
First is that netdisco is able to see the neighbors, but does not
automatically interrogate them like other switches.
It might help to read this doc, which explains what Netdisco needs tohave in place for automatic discovery. You can, of course, triggermanual discovery from the command line (also using an IP prefix for bulkoperations):
https://metacpan.org/pod/distribution/App-Netdisco/lib/App/Netdisco/Manual/Troubleshooting.pod
Second, when drawing a map, it doesn't show the "final" link that
would make the network a ring. If I zoom to the last node in the map,
it does show neighbors from there in both directions.
Okay that's probably the simplistic approach that the mapping takes towork out what to display. It tries to eliminate some redundantconnections and only show them when you hover over the device. To behonest I'm not sure we can do a lot in Netdisco 2 about that, withoutsome significant dev time, sorry.
However also check the number of "hops" which I believe defaults to 8("Draw to Depth").
Hope this helps,

regards,
oliver.
--- End Message ---

--- Begin Message ---

Hi Derek,

On 2015-04-08 21:21, Derek Andree wrote:

I've been trying to macsuck on our new Cisco 4500-X switches and have
been having the "Port X has no bp_index mapping. Skipping" issuewhich
I've seen a few times on the mailing list.

To map a forwarding table entry (MAC to Port) on a device actuallyinvolves quite some indirection via other SNMP tables, and this messagesays there's some data missing from one of the intermediates.


 fw_mac -> fw_port -> bp_index -> interfaces

The switch in question is:

Cisco 4500X32 running ios-xe version 03.07.00.E


Is this recent software? It could be a bug that's since been fixed.

Alternatively it could be something SNMP::Info is able to work around,however (a) I think the devs usually don't like to work around vendormistakes and (b) seeing as things've been quiet here, you might not finda dev who can fix this for your platform.

Version(s) of various software:

[netdisco@netdis01 netdisco]$ ./netdisco -v
n e t d i s c o
--------------------------------------------------
Netdisco Version : 1.3.2

In any case, upgrading to Netdisco 2 will distract you from thisproblem with lots of shiny things! ;-)


https://metacpan.org/pod/App::Netdisco

regards,
oliver.

SNMP::Info Version : 3.26
Net-SNMP Version : 5.05
Perl Version : 118.53.46.49.48.46.49

Here is the abbreviated output from a debug enabled macsuck showing
the problem:

[netdisco@netdis01 netdisco]$ ./netdisco -D -M 10.20.2.89
n e t d i s c o
--------------------------------------------------
Using Config File : /usr/local/netdisco/netdisco.conf
macsuck(10.20.2.89) :
load_old_devices()
mac_getportmacs() ... found 3196 MACs.
 get_device(10.20.2.89)

get_device(10.20.2.89) - Connecting using cached info:10.20.2.89/t/2


 create_device(10.20.2.89,t,2*,AutoSpecify,bw:default)

SNMP::Info::init() - Adding newmibdir:/usr/local/netdisco/mibs/allied


SNMP::Info::init() - Adding new mibdir:/usr/local/netdisco/mibs/apc

SNMP::Info::init() - Adding newmibdir:/usr/local/netdisco/mibs/arista


SNMP::Info::init() - Adding new mibdir:/usr/local/netdisco/mibs/aruba

SNMP::Info::init() - Adding newmibdir:/usr/local/netdisco/mibs/asante


SNMP::Info::init() - Adding new
mibdir:/usr/local/netdisco/mibs/cabletron
SNMP::Info::init() - Adding new mibdir:/usr/local/netdisco/mibs/cisco
SNMP::Info::init() - Adding new
mibdir:/usr/local/netdisco/mibs/cyclades
SNMP::Info::init() - Adding new mibdir:/usr/local/netdisco/mibs/dell
SNMP::Info::init() - Adding new
mibdir:/usr/local/netdisco/mibs/enterasys
SNMP::Info::init() - Adding new
mibdir:/usr/local/netdisco/mibs/extreme
SNMP::Info::init() - Adding new
mibdir:/usr/local/netdisco/mibs/foundry
SNMP::Info::init() - Adding new mibdir:/usr/local/netdisco/mibs/hp
SNMP::Info::init() - Adding new
mibdir:/usr/local/netdisco/mibs/juniper
SNMP::Info::init() - Adding new
mibdir:/usr/local/netdisco/mibs/netscreen

SNMP::Info::init() - Adding newmibdir:/usr/local/netdisco/mibs/nortel


SNMP::Info::init() - Adding new mibdir:/usr/local/netdisco/mibs/rfc
SNMP::Info::init() - Adding new
mibdir:/usr/local/netdisco/mibs/net-snmp
SNMP::Info::_global layers : SNMPv2-MIB::sysServices.0 :
.1.3.6.1.2.1.1.7.0
SNMP::Info::_global description : SNMPv2-MIB::sysDescr.0 :
.1.3.6.1.2.1.1.1.0
SNMP::Info::_global id : SNMPv2-MIB::sysObjectID.0 :
.1.3.6.1.2.1.1.2.0
SNMP::Info 3.26
SNMP::Info::device_type() layers:00000110 id:9 sysDescr:"Cisco IOS
Software, IOS-XE Software, Catalyst 4500 L3 Switch Software
(cat4500e-UNIVERSALK9-M), Version 03.07.00.E RELEASE SOFTWARE (fc4)
Technical Support: http://www.cisco.com/techsupport Copyright (c)
1986-2014 by Cisco Systems, Inc. Compiled Sun 0"