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Today's Topics:
1. Netdisco pooling vlan from Aruba CX switches (Zuntz Igal)
2. Re: Netdisco pooling arp from Aruba CX 8325 (Zuntz Igal)
--- Begin Message ---
Hi,
We have Aruba CX 8325 and 6300 switches, some working as L2/L3 and some as L2
devices.
We noticed that the vlan membership of the interface remain empty.
Also in the vlan inventory report those switches are missing.
Any suggestion?
Igal
--- End Message ---
--- Begin Message ---
Hi Christian,
Thank you for your help.
Following the examples you sent we were able to resolve this, and start pooling
the require information from the switches.
Best regards,
Igal
-----Original Message-----
From: Christian Ramseyer <[email protected]>
Sent: Thursday, December 3, 2020 10:54 AM
To: Zuntz Igal <[email protected]>; [email protected]
Subject: Re: [Netdisco] Netdisco pooling arp from Aruba CX 8325
Hi Igal
This is a very common problem with many device types, the ancient SNMP standard
MIBs for ARP don't work very well with the modern networking world. The typical
Netdisco workaround is to use the SSHCollector to SSH into the device and
return the output of "show arp" or a similar command.
This requires a little platform-specific piece of code. There doesn't seem one
to be for Aruba yet, but you can find examples here:
https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fnetdisco%2Fnetdisco%2Ftree%2Fmaster%2Flib%2FApp%2FNetdisco%2FSSHCollector%2FPlatform&data=04%7C01%7Cigalz%40technion.ac.il%7C95f5c77708c842e756ae08d89768f405%7Cf1502c4cee2e411c9715c855f6753b84%7C1%7C0%7C637425824312940470%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=bjgOb0EKJOUGxBEgE5bFaKGpTTiPVaHPxfl1j%2Bn8nQ4%3D&reserved=0
Once you have this bit, check out the specific device_auth for the "tag:
sshexample" in the doc. With this you pass the username, password and other SSH
options to the device:
https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fnetdisco%2Fnetdisco%2Fwiki%2FConfiguration%23device_auth&data=04%7C01%7Cigalz%40technion.ac.il%7C95f5c77708c842e756ae08d89768f405%7Cf1502c4cee2e411c9715c855f6753b84%7C1%7C0%7C637425824312940470%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=dk8uGXw0HqKLK1eR3nS4xmd82wwHBdI6F7XQfBmmtCM%3D&reserved=0
Once set up, the regular discovery process will then use the SSH backend for
ARP records.
Disclaimer: I have not touched a single Aruba device in my life and don't know
if they even support SSH, but if they do that should be the way to go.
Cheers
Christian
On 29.11.20 10:26, Zuntz Igal wrote:
> Hi,
>
> We have Aruba CX 8325 switch is working as L2/L3 device.
>
> Arpnip on this switch appears to work successfully (no errors appear
> in the cli, and from tcpdump the data looks valid), however, the IP
> addresses from the vlans this switch routes on L3 are missing from
> netdisco (but can be found at the switch arp table).
>
> Any suggestion?
>
> Igal
>
>
>
>
>
>
>
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--- End Message ---
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