IBM 9077 User Manual

Laboratory Hardware and Software Configuration 

Table 48.  Network Options of CWS and All Nodes Part 3 of 3

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.

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