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Laboratory Hardware and Software Configuration 255
Table 48. Network Options of CWS and All Nodes Part 3 of 3
A.2 SP Switch Pool Size Settings
Two important switch parameters were changed from their default values:
rpoolsize and spoolsize. To check the current values, enter:
lsattr -El css0
and look for rpoolsize and spoolsize. 512 KB per processor is the default
size. Both values should be increased if high I/O traffic is expected on the SP
Switch. To increase both values to 5 MB (as applied in all of our scenarios),
enter:
/usr/lib/methods/chgcss -l css0 -a spoolsize=5242880 -a rpoolsize=5242880
For the changes to take effect, the SP nodes must be rebooted.
Parameters Value
ipignoreredirects 0
ipsrcroutesend 1
ipsrcrouterecv 1
ipsrcrouteforward 1
ip6srcrouteforward 1
ip6_defttl 64
ndpt_keep 120
ndpt_reachable 30
ndpt_retrans 1
ndpt_probe 5
ndpt_down 3
ndp_umaxtries 3
ndp_mmaxtries 3
ip6_prune 2
tcp_timewait 1
tcp_ephemeral_low 32768
tcp_ephemeral_high 65535
udp_ephemeral_low 32768
udp_ephemeral_high 65535