Very Computer

Our Sparc20 clone has two LE network interfaces -- le0 and le2.  I would
like to use both interfaces, in the hope of doubling the throughput to
our Cisco FastEthernet switches (right: it would be best if Management
would spring for a 100Mbit/s hme card...).

This is what I've done so far:

1.  copied /etc/hostname.le0 to /etc/hostname.le2
2.  added a second entry for the host (with a different IP address)
    to /etc/hosts
3.  added an entry for the host (with a different IP address) to the
    DNS tables (and restarted named)
4.  ifconfig le2 <ip_address> up netmask <netmask> broadcast <broadcast>
    -trailers

5.  ifconfig le2 plumb

At this point "ifconfig -a" shows the second interface as it should be;
however, "netstat -rn" shows no use for interface le2.

194.90.208.0         194.90.208.2          U       12   1529  le0
194.90.208.0         194.90.208.7          U        2      0  le2

In addition, running "snoop -d le2" only shows me ARP and host-id packet
traffic, but the interface isn't being used for "regular" traffic.

What have I missed?

Thanks in advance.

--
JONATHAN B. HOREN                            UNIX SYSTEM ADMINISTRATION

                                                   -- Clare Boothe Luce

Quote:>Our Sparc20 clone has two LE network interfaces -- le0 and le2.  I would
>like to use both interfaces, in the hope of doubling the throughput to
>our Cisco FastEthernet switches (right: it would be best if Management
>would spring for a 100Mbit/s hme card...).
>This is what I've done so far:
>1.  copied /etc/hostname.le0 to /etc/hostname.le2

hostname.le0 should contain something like "hostname-ether0"
hostname.le2 should contain something like "hostname-ether2"
nodename contains the hostname proper ("hostname").

/etc/hosts should be setup like this:

IP-for-le0      hostname hostname-ether0
IP-for-le2      hostname hostname-ether2

These per interface aliases can be added to DNS if they're used outside
the host.  Personally, I also prefer to specify the FQDN first:

IP-for-le0      hostname.your.domain hostname hostname-ether0
IP-for-le2      hostname.your.domain hostname hostname-ether2

This makes for a consistent behaviour between /etc/hosts and
DNS.

Quote:>2.  added a second entry for the host (with a different IP address)
>    to /etc/hosts

Quote:>3.  added an entry for the host (with a different IP address) to the
>    DNS tables (and restarted named)

Quote:>4.  ifconfig le2 <ip_address> up netmask <netmask> broadcast <broadcast>
>    -trailers
>5.  ifconfig le2 plumb
>At this point "ifconfig -a" shows the second interface as it should be;
>however, "netstat -rn" shows no use for interface le2.
>194.90.208.0         194.90.208.2          U       12   1529  le0
>194.90.208.0         194.90.208.7          U        2      0  le2
>In addition, running "snoop -d le2" only shows me ARP and host-id packet
>traffic, but the interface isn't being used for "regular" traffic.
>What have I missed?

Casper
--
Expressed in this posting are my opinions.  They are in no way related
to opinions held by my employer, Sun Microsystems.
Statements on Sun products included here are not gospel and may
be fiction rather than truth.

You need to set the Ethernet address for the 2nd interface.
For example, if the address of the 1st interface is
8:0:20:11:fb:29, pick another address to use for the 2nd
interface.  It must be unique, at least among all the interfaces
behind the same router.

Assuming the new address was 8:0:20:11:de:af, the command to
set it would be
   ifconfig le2 ether 8:0:20:11:de:af

That will only last until the next reboot.  To make it permanent,
you need to create a suitable startup script to issue that command
every time the system boots.

Bogonics: the primary language inside the Beltway

Thong

: Shalom!

: Our Sparc20 clone has two LE network interfaces -- le0 and le2.  I would
: like to use both interfaces, in the hope of doubling the throughput to
: our Cisco FastEthernet switches (right: it would be best if Management
: would spring for a 100Mbit/s hme card...).

: This is what I've done so far:

: 1.  copied /etc/hostname.le0 to /etc/hostname.le2
: 2.  added a second entry for the host (with a different IP address)
:     to /etc/hosts
: 3.  added an entry for the host (with a different IP address) to the
:     DNS tables (and restarted named)
: 4.  ifconfig le2 <ip_address> up netmask <netmask> broadcast <broadcast>
:     -trailers

: 5.  ifconfig le2 plumb

: At this point "ifconfig -a" shows the second interface as it should be;
: however, "netstat -rn" shows no use for interface le2.

: 194.90.208.0         194.90.208.2          U       12   1529  le0
: 194.90.208.0         194.90.208.7          U        2      0  le2

: In addition, running "snoop -d le2" only shows me ARP and host-id packet
: traffic, but the interface isn't being used for "regular" traffic.

: What have I missed?

: Thanks in advance.

: --
: JONATHAN B. HOREN                            UNIX SYSTEM ADMINISTRATION

:                                                    -- Clare Boothe Luce

--
Thong Ly                        Merrill *

Tel: +1-212-558-0587            20 Broad Street, 14F
Fax: +1-212-558-0578            New York, NY 10005

It enables round-robin IP for multiple interfaces on the same net.

Casper
--
Expressed in this posting are my opinions.  They are in no way related
to opinions held by my employer, Sun Microsystems.
Statements on Sun products included here are not gospel and may
be fiction rather than truth.

Will that be packet by packet, or connection by connection, (for what
definition of a "connection" - eg how about NFS?).

I suppose the importance depends on what the original poster was
expecting to get - a single FTP that could now go at 20 Mbit/s, or an
aggregate of 20 Mbit/s across a number of FTP's (or other things...).

rick jones

--
these opinions are mine, all mine; HP might not want them anyway... :)
feel free to email, or post, but please do not do both...
my email address is raj in the cup.hp.com domain...

dsc

: It's on a per-destination basis - so if all of your traffic is
: headed to a single destination, you're out of luck.  On the other
: hand, if you're a global web-server with thousands of client coming
: in, you should get a nice balance.

Is anything done to match the inbound interface with the outbound
interface?

rick jones
--
these opinions are mine, all mine; HP might not want them anyway... :)
feel free to email, or post, but please do not do both...
my email address is raj in the cup.hp.com domain...