|
Wednesday October 06, 2004
Sun Trunking 1.3
Sun
Trunking has been around for a long time, and it allows you to aggregate
Sun network cards (4 gigabit or 16 10/100 cards) together for a larger pipe.
We have had a need to use this to make use of an e6500 as a client for a
SpecjAppserver2002 rig in the
past, and
due to a different issue[1] I had to recreate the trunk on this rig today so I
figured a quick (very simple) example on how to set it up is worthwhile.
In our case we were using a single qfe card to create the trunks, I'll skip
the pkgremove pkgadd cycle, and skip straight to the config. First up we need
to grab our qfe instance numbers, we can get these from path_to_inst.
ecemulator# grep qfe /etc/path_to_inst
"/sbus@3,0/SUNW,qfe@0,8c00000" 0 "qfe"
"/sbus@3,0/SUNW,qfe@0,8c10000" 1 "qfe"
"/sbus@3,0/SUNW,qfe@0,8c20000" 2 "qfe"
"/sbus@3,0/SUNW,qfe@0,8c30000" 3 "qfe"
check to make sure we have nothing setup, just to be sure
ecemulator# ifconfig -a
lo0: flags=1000849 mtu 8232 index 1
inet 127.0.0.1 netmask ff000000
hme0: flags=1000843 mtu 1500 index 2
inet xxx.x.x.xxx netmask ffffff00 broadcast xxx.x.x.255
ether 8:0:20:xx:xx:xx
ecemulator# cd /etc/opt/SUNWconn/bin
ecemulator# ./nettr -conf
Okay, so we are in the clear. Now lets check our local-mac-address? setting
to make sure its okay (it needs to be set to true for trunking to work)
ecemulator# eeprom local-mac-address?
local-mac-address?=false
ecemulator# eeprom local-mac-address?=true
In this case we are going to choose qfe0 as the head of the trunk, so we
set /etc/hostname.qfe0 to ecemulator and make sure that it has an entry in
our host file. Now lets actually set up the trunk. First off we need to
choose our trunking policy, there are four possible policies, these being -
| MAC |
Default policy, at its simplest will divide the traffic
equally, ie each interface in this example will handle 25% of the traffic |
| Round Robin |
Use each interface in turn |
| IP Destination Address |
Use IP Destination address to get the transmission path |
| IP Source Address/IP Destination Address |
Deterministic connections |
In our case we are going to choose mac as our policy. So to enable this
permanently we edit /etc/opt/SUNWconn/bin/nettr.sh and add the following line
# Trunking setup for qfe card on sbus #1 - Fintan
nettr -setup 0 device=qfe policy=1 members=0,1,2,3
Now lets run this manually, and we get
ecemulator# ./nettr -setup 0 device=qfe policy=1 members=0,1,2,3
qfe trunk members:
qfe0 (head)
qfe1
qfe2
qfe3
and thats it. To make sure its all okay, we bring the machine down and reboot
ecemulator# sync
ecemulator# init 0
ecemulator#
INIT: New run level: 0
The system is coming down. Please wait.
System services are now being stopped.
Print services already stopped.
Oct 6 10:41:32 ecemulator syslogd: going down on signal 15
The system is down.
syncing file systems... done
Program terminated
{10} ok printenv local-mac-address?
local-mac-address? = true
{10} ok boot -r
.................
Configuring Sun Trunking devices
qfe trunk members:
qfe0 (head)
qfe1
qfe2
qfe3
configuring IPv4 interfaces: hme0 qfe0.
Hostname: ecemulator
.......
All working, and back to todays planned work. The Sun Trunking docs cover all of the above and much more in gory
detail.
[1] devfsadm -Cv -r /mnt is a really usefull hack (thanks Wookie), but
fully reading manpages may be an idea on my part ;).
(2004-10-06 03:29:16.0)
Permalink
SLAMD goes opensource...
SLAMD has gone opensource, released under the Sun Public License. You can download the lot from here [slamd.com] or here [java.net].
(2004-10-06 02:00:46.0)
Permalink
|
