There have been problems with TCP Software Packet reassembly
in the igssn driver in a guest HP-UX image. For this release, do not
enable it on a guest. By default, software packet reassembly (known
with acronyms as drv_pr for driver packet reassembly) is enabled in
igssn in the guest.
To determine if drv_pr is enabled, an administrator can execute
the following command:
where ppa is the Card instance #
(Crd in#) from lanscan.
To manually disable drv_pr, an administrator can execute the
following command:
lanadmin -X drv_pr_off ppa |
To manually enable drv_pr, an administrator
can execute the following command:
lanadmin -X drv_pr_on ppa |
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 | NOTE: These change are not carried over to subsequent reboots of the
system. To maintain the configuration over reboots of the guest, the
administrator must edit the guest file, /etc/rc.config.d/hpigssnconf. |
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For each igssn device that must have drv_pr disabled, you must construct a block of information in the hpigssnconf file. For example, if your guest needed to
have both lan0 and lan3 disable drv_pr, you might
have:
HP_IGSSN_INTERFACE_NAME[0]=lan0
HP_IGSSN_STATION_ADDRESS[0]=
HP_IGSSN_MTU[0]=
HP_IGSSN_DRV_PR[0]=0
HP_IGSSN_INTERFACE_NAME[3]=lan3
HP_IGSSN_STATION_ADDRESS[3]=
HP_IGSSN_MTU[3]=
HP_IGSSN_DRV_PR[3]=0 |
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