Hi,

my company recently purchased an XS716T. While configuring it I stumbled over a problem regarding NSDP (“Netgear Switch Discovery Protocol”, I suppose?):

The syslog is spammed once a second with the following pair of messages:

<11> Nov 6 18:41:28 sw-a-14.cb.switches-1 General[nsdpTask]: nsdp_control.c(1777) 6216407 %% NSDP could not create the socket - No such file or directory
<11> Nov 6 18:41:28 sw-a-14.cb.switches-1 General[nsdpTask]: nsdp_control.c(1510) 6216406 %% osapiSocketBind failed - Address already in use

Also there is an nsdp process which hogs the CPU:

CPU Utilization:

PID Name 5 Secs 60 Secs 300 Secs
---------- ------------------- -------- -------- --------

1270 (nsdp) 81.48% 85.63% 85.33%

(The actual values sometimes go down to ca. 75% or up to ca. 95%).

While the log messages are only annoying, the worst they can do is possibly hiding a messages that would actually be interesting, and filling the disk of our remote receiver of the syslog messages.

However, I’m concerned about the CPU utilization. If one process occupies so much CPU time, other processes may starve, and the high utilization may cause higher CPU temperature, and thus possibly reduce the life time of the CPU or the fans (and therefore the switch).

The firmware is 7.0.20.0 (current at the time of writing).

Any input from the Netgear engineering department about what’s going on here, and whether this is expected behaviour?

Thank you for your help,

Tobias

(Possible) Bug: NSDP running amok