Timer for clearing of ARP cache

[L.Trojak]

Hi,

please could you provide with answers to following 2 questions related to ARP ?
---
What is default value for clearing of ARP cache on Tru64 5.1A ?
---
Is it possible to change this value and how ?
---

[Cortes Albertino]

Hi,

man sys_attrs_net may help.
Try it .

arpkillc
Number of seconds until the system deletes a complete ARP entry from
the ARP cache.

Default value: 1200 (seconds)

Minimum value: 1

Maximum value: 32767

arpkilli
Number of seconds until the system deletes an incomplete ARP entry from
the ARP cache.

Default value: 180 (seconds)

Minimum value: 1

Maximum value: 32767

arprefresh
Number of seconds until the system refreshes a complete ARP entry in
the ARP cache.

Default value: 120 (seconds)

Minimum value: 1


Hope it helps.

Albertino Cortes

[L.Trojak]

Thank you for idea, but I see only following parameters covered by 'man sys_attrs_net'
--------------
ether_cl_scheduler
ifqmaxlen
lo_def_ip_mtu
lodevs
netisrfair
netisrpriority
netisrthreads
netisrwakeupthreshold
npacketfilter
nslip
route_rate_limit
screen_cachedepth
screen_cachewidth
screen_maxpend
----------
'arp' params are not mentioned here

Tru64 5.1 PK6

Ideas ?

Regards,

Lumir

[Al Licause]

It appears that the arpkill* parameters are new since V5.1b. It is possible that they may still be in the kernel somewhere, but they don't showup as accessable parameters til v5.1b. If you're any good at searching through kernel structures using dbx, you may find them.

[Michael Schulte zur Sur]

Hi,

Al is right, with
kdbx -k /vmunix
you can see these parameters.
use
p arpkillc
for example.

hth,

Michael