SNMP ifindex

[system]

Hi,

I have setup a couple of SN2010 switches with mlag configuration that I will supervise using SNMP.

I found out that the SNMP ifindex are theses :

ifDescr ifIndex

lo 1

mgmt0 3

Eth1/1 109

Eth1/2 110

Eth1/3 105

Eth1/4 106

Eth1/5 107

Eth1/6 108

Eth1/7 101

Eth1/8 102

Eth1/9 103

Eth1/10 104

Eth1/11 97

Eth1/12 98

Eth1/13 99

Eth1/14 100

Eth1/15 65

Eth1/16 66

Eth1/17 67

Eth1/18 68

Eth1/19 73

Eth1/20 69

Eth1/21 81

Eth1/22 77

Po1 13826

Mpo1 29001

Mpo2 29002

I have several question about that :

• how are theses ifindex generated ?
• are theses ifIndex persistent after switch reboot ?
• how to get the snmp ifindex from the CLI ?

On cisco product, you may have the ifindex persistent using “snmp-server ifindex persist” and “show snmp mib ifmib ifindex …”, for example :

gaea3#show snmp mib ifmib ifindex g3/1/1

Interface = GigabitEthernet3/1/1, Ifindex = 11301

Alain Richard

[MvB]

Hello Alain,

Thank you for posting your inquiry on the NVIDIA Networking Community.

Based on the information provided, we recommend to review the following two Community posts regarding SNMP, including the SNMP section in the UM.

• https://community.mellanox.com/s/article/getting-started-with-snmp-mibs-for-mellanox-switches
• https://community.mellanox.com/s/article/howto-use-snmp-set-on-mellanox-switches
• https://docs.mellanox.com/display/Onyxv392006/Network+Management+Interface+Commands

If you need further information after review, please open a NVIDIA Networking Technical Support ticket by sending an email to networking-support@nvidia.com. We will then continue to assist you through the ticket.

Thank you and regards,

~NVIDIA Networking Technical Support