topic NOS, VDX-6740 - mgmt interface unable to ping back. in Data Center (VDX)

NOS, VDX-6740 - mgmt interface unable to ping back.

Pawel_Eljasz — Thu, 21 Feb 2019 06:24:27 GMT

hi everyone,

I might have somewhat not straightforward setup:

VDX's mgmt iface is hooked into a non-extreme switch, whose ports are in access more, not-tagged.
Then, nodes/clients ifaces are vlans and are hooked into the same switches, on ports which are in General mode and tag the vlan from nodes/client.

Now, nodes/clients can ping VDX's mgmt iface, can ssh but, VDX does not ping back, fails as unreachable.

I swear it was working, I think, but I've been fiddling with switch recently and I can only presume changed something I must have.

But what...
What can be the problem & the fix here?
Many thanks, P.

Re: NOS, VDX-6740 - mgmt interface unable to ping back.

Josh — Thu, 21 Feb 2019 06:30:09 GMT

If you are not doing so already, please specify the management vrf when doing the ping test and report the results:

Ex.
VDX# ping X.X.X.X vrf mgmt-vrf

Re: NOS, VDX-6740 - mgmt interface unable to ping back.

Pawel_Eljasz — Fri, 22 Feb 2019 03:31:45 GMT

ps. Where from can I get all my VRFs?
I presume that any other ping will not work if not supply VRF as an argument, right?

many thanks, P.

Re: NOS, VDX-6740 - mgmt interface unable to ping back.

Josh — Fri, 22 Feb 2019 03:39:47 GMT

A normal ping (ex. VDX# ping X.X.X.X) will use the default-vrf by default. The "show vrf" command will show all the vrfs:

Ex.
VDX# show vrf
Total number of VRFs configured: 2
VrfName VrfId V4-Ucast V6-Ucast
default-vrf 1 Enabled Enabled
mgmt-vrf 0 Enabled Enabled