Send netdisco-users mailing list submissions to
[email protected]
To subscribe or unsubscribe via the World Wide Web, visit
https://lists.sourceforge.net/lists/listinfo/netdisco-users
or, via email, send a message with subject or body 'help' to
[email protected]
You can reach the person managing the list at
[email protected]
When replying, please edit your Subject line so it is more specific
than "Re: Contents of netdisco-users digest..."
Today's Topics:
1. Getting IPv6 neighbors cache form Cisco Cat6500 and ASA5585X
(Gerhard Rappenecker)
2. Re: Getting IPv6 neighbors cache form Cisco Cat6500 and
ASA5585X (Mark Boolootian)
3. Random speedup tricks (Brian Marshall)
4. Re: Random speedup tricks (Andy Ruhl)
5. Re: Getting IPv6 neighbors cache form Cisco Cat6500 and
ASA5585X (Andy Ruhl)
--- Begin Message ---
Hi all,
I am running Nedisco2 (App::Netdisco 2.033006, SNMP::Info 3.33)
How can I get the IPv6- and MAC addresses from a Cisco Cat6500 device (IOS
15.2(1)SY) ?
"netdisco-do -D arpnip -d ...." works for IPv4 ARP Cache but not for IPv6
neighbors. The output shows: "arpnip - processed 0 IPv6 Neighbor Cache entries"
It seems, that the device could not send the data by SNMP. Can anyone confirm
this?
Is there any chance to get the IPv6 neighbors via netdisco-sshcollector?
Unfortunately there is no device class integrated executing the IOS command
"show ipv6 neighbors"
I found the description here
https://metacpan.org/pod/distribution/App-Netdisco/bin/netdisco-sshcollector ,
but I'm not expirienced with perl.
Has anyone a solution or a good idea?
Furthermore I have the same problem with a Cisco ASA5585X. Getting the IPv4 ARP
cache via netdisco-sshcollector works, but getting the IPv6 neighbors cache I
have the same problem descibed above.
Thanks for any help.
Gerhard Rappenecker
--- End Message ---
--- Begin Message ---
Guten tag Gerhard,
> I am running Nedisco2 (App::Netdisco 2.033006, SNMP::Info 3.33)
I am running App::Netdisco 2.035006 and SNMP::Info 3.34.
> How can I get the IPv6- and MAC addresses from a Cisco Cat6500 device (IOS
> 15.2(1)SY) ?
> "netdisco-do -D arpnip -d ...." works for IPv4 ARP Cache but not for IPv6
> neighbors. The output shows: "arpnip - processed 0 IPv6 Neighbor Cache
> entries"
> It seems, that the device could not send the data by SNMP. Can anyone
> confirm this?
All the Cisco gear I have running 15.2 are 6800s with
sup2Ts, so this response might not be of much use. That
said:
I don't have a box running 15.2(1)SY, but I do have one
running 15.2(1)SY3 and I can confirm that IPv6 neighbor
cache entries are retrieved by arpnip:
[44516] 2017-06-01 16:37:25 debug [10.1.2.3] arpnip - processed 987
ARP Cache entries
[44516] 2017-06-01 16:37:26 debug [10.1.2.3] arpnip - processed 105
IPv6 Neighbor Cache entries
However, I do have a 6500 with a sup720 that is running 15.1(2)SY9
and arpnip seems to work just fine here:
[44797] 2017-06-01 16:50:17 debug [10.2.3.4] arpnip - processed 113
ARP Cache entries
[44797] 2017-06-01 16:50:17 debug [10.2.3.4] arpnip - processed 19
IPv6 Neighbor Cache entries
I don't see anything in the Netdisco change log suggesting that
there were issues with arpnip for IPv6 neighbor cache entries.
That said, upgrading Netdisco seems like a worthwhile endeavor
given the bug fixes and additions since 2.033006. Perhaps an
IOS update as well?
best,
mark
--- End Message ---
--- Begin Message ---
Hello List,
I thought I'd share a few speedup tricks that I'd used on my Netdisco
server that have made life much more pleasant.
1. Making static assets go thru regular apache and not starman
2. Making internet-hosted static assets local to the server
3. Prewarm the postgres caches every 5 minutes (pg_prewarm function)
4. Turning the linux VM swappiness down to 1
I have submitted patches for the first 3, and the fourth is easy to do
and made a HUGE difference. The server would be a crapshoot after not
having been used for a few hours, sometimes taking 10 seconds plus to
respond. With swappiness turned down to 1 it is almost instant every time.
Hope this makes some people's lives easier!
-Brian Marshall
--- End Message ---
--- Begin Message ---
Thanks for your work.
Regarding #4, it might make sense to give a few details of your system
and why this worked in your case.
I don't have my database on the same system as where Netdisco is
installed, and I'm using 0 bytes of swap with default settings. Not
sure swappiness is relevant in my case.
Andy
On Thu, Jun 1, 2017 at 12:36 PM, Brian Marshall <[email protected]> wrote:
> Hello List,
>
> I thought I'd share a few speedup tricks that I'd used on my Netdisco server
> that have made life much more pleasant.
>
> 1. Making static assets go thru regular apache and not starman
> 2. Making internet-hosted static assets local to the server
> 3. Prewarm the postgres caches every 5 minutes (pg_prewarm function)
> 4. Turning the linux VM swappiness down to 1
>
> I have submitted patches for the first 3, and the fourth is easy to do and
> made a HUGE difference. The server would be a crapshoot after not having
> been used for a few hours, sometimes taking 10 seconds plus to respond. With
> swappiness turned down to 1 it is almost instant every time.
> Hope this makes some people's lives easier!
>
> -Brian Marshall
>
> ------------------------------------------------------------------------------
> Check out the vibrant tech community on one of the world's most
> engaging tech sites, Slashdot.org! http://sdm.link/slashdot
> _______________________________________________
> Netdisco mailing list
> [email protected]
> https://lists.sourceforge.net/lists/listinfo/netdisco-users
--- End Message ---
--- Begin Message ---
Upgrading Netdisco is pretty painless, you should try it. Cisco on the
other hand, not so much.
I just did an arpnip on a 6500 with 151-2.SY5 and it grabbed IPv6
neighbor entries.
Andy
On Thu, Jun 1, 2017 at 9:54 AM, Mark Boolootian <[email protected]> wrote:
> Guten tag Gerhard,
>
>> I am running Nedisco2 (App::Netdisco 2.033006, SNMP::Info 3.33)
>
> I am running App::Netdisco 2.035006 and SNMP::Info 3.34.
>
>> How can I get the IPv6- and MAC addresses from a Cisco Cat6500 device (IOS
>> 15.2(1)SY) ?
>> "netdisco-do -D arpnip -d ...." works for IPv4 ARP Cache but not for IPv6
>> neighbors. The output shows: "arpnip - processed 0 IPv6 Neighbor Cache
>> entries"
>> It seems, that the device could not send the data by SNMP. Can anyone
>> confirm this?
>
> All the Cisco gear I have running 15.2 are 6800s with
> sup2Ts, so this response might not be of much use. That
> said:
>
> I don't have a box running 15.2(1)SY, but I do have one
> running 15.2(1)SY3 and I can confirm that IPv6 neighbor
> cache entries are retrieved by arpnip:
>
> [44516] 2017-06-01 16:37:25 debug [10.1.2.3] arpnip - processed 987
> ARP Cache entries
> [44516] 2017-06-01 16:37:26 debug [10.1.2.3] arpnip - processed 105
> IPv6 Neighbor Cache entries
>
> However, I do have a 6500 with a sup720 that is running 15.1(2)SY9
> and arpnip seems to work just fine here:
>
> [44797] 2017-06-01 16:50:17 debug [10.2.3.4] arpnip - processed 113
> ARP Cache entries
> [44797] 2017-06-01 16:50:17 debug [10.2.3.4] arpnip - processed 19
> IPv6 Neighbor Cache entries
>
> I don't see anything in the Netdisco change log suggesting that
> there were issues with arpnip for IPv6 neighbor cache entries.
> That said, upgrading Netdisco seems like a worthwhile endeavor
> given the bug fixes and additions since 2.033006. Perhaps an
> IOS update as well?
>
> best,
> mark
>
> ------------------------------------------------------------------------------
> Check out the vibrant tech community on one of the world's most
> engaging tech sites, Slashdot.org! http://sdm.link/slashdot
> _______________________________________________
> Netdisco mailing list
> [email protected]
> https://lists.sourceforge.net/lists/listinfo/netdisco-users
--- End Message ---
------------------------------------------------------------------------------
Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot
_______________________________________________
Netdisco mailing list - Digest Mode
[email protected]
https://lists.sourceforge.net/lists/listinfo/netdisco-users
