Usingthe SunFDDI Network Utilities 87
8
a. Edit the /etc/rcS.d/S30rootusr.sh file to add the following if
statement immediately after the ifconfig command that initializes
the interface pf<inst>.
If you are changing the MAC address of more than one interface, add
one if statement for each interface.
On most systems, the /etc/rcS.d/S30rootusr.sh file is a hard link to
the /etc/rootusr file.
4. Reboot your machine to assign the new MAC address to the SunFDDI
interface.
When a SunFDDI/P card takes the host-resident MAC address, it can be
swapped to another system without affecting the existing network. However,
once a station starts sending packets on the network, the Address Resolution
Protocol (ARP) updates the ARP tables on other stations to include the MAC
address of its interface. The ES-IS protocol performs the same function for
SunFDDI OSI running over FDDI. If you swap SunFDDI/P cards that use the
card-resident MAC address, you must wait until the ARP entries time-out, or
remove the ARP entries from every active station manually beforepackets can
be routed correctly.
Displaying SunFDDI/P Statistics (pf_stat)The pf_stat(1M) utility interrogates a specified SunFDDI/P interface and
displays the accumulated statistics. This command must be executed as root
(or superuser) and has the general form:
pf<inst> specifies the SunFDDI/P interface
<interval> is the elapsed time (in seconds) between interrogations
<count> the total number of interrogations
ifconfig $1 plumb
if [ $1 = “pf<inst>” ]; then
ifconfig pf<inst> ether <mac_address>
fi
#<basedir>/pf_stat [-m]pf<inst> [<interval>] [<count>]
ifstatement to initialize
interfacepf<inst> -------->