Adding Second nic in Solaris 10

I am tring to add a second nic in a T1000 running Solaris 10. After I add the nic with the config as follows:

bge0: flags=1000803<UP,BROADCAST,MULTICAST,IPv4> mtu 1500 index 2
        inet 192.168.1.67 netmask ffffff00 broadcast 192.168.1.255
        ether 0:21:28:10:a3:d0
bge1: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 3
        inet 192.168.1.68 netmask ffffff00 broadcast 192.168.1.255
        ether 0:21:28:10:a3:d1

Evrething works fine but if I unplug the first nic there is no trafic in the server.
why I can not use the second nic if I unplug the first one even if the second nic is pluged and is running?

Thank you
smurguAsked:
Who is Participating?
 
omarfaridConnect With a Mentor Commented:
If not mistaken, this has to do with IP routing since the system see a valid route to the subnet on that interface and then try to use it. since you don't want to use IPMP (which will give what you want), then I am afraid that you need a script on the server itself to monitor the interfaces and bring down the one that shows that it is unplugged
0
 
omarfaridCommented:
if you run

ifconfig -a

what do you get?

0
 
smurguAuthor Commented:
I post that in my question.
bge0: flags=1000803<UP,BROADCAST,MULTICAST,IPv4> mtu 1500 index 2
        inet 192.168.1.67 netmask ffffff00 broadcast 192.168.1.255
        ether 0:21:28:10:a3:d0
bge1: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 3
        inet 192.168.1.68 netmask ffffff00 broadcast 192.168.1.255
        ether 0:21:28:10:a3:d1
The fist interface is not running because I unplug the cable to see if the second one is working when the fisrt one is down.
0
Cloud Class® Course: Python 3 Fundamentals

This course will teach participants about installing and configuring Python, syntax, importing, statements, types, strings, booleans, files, lists, tuples, comprehensions, functions, and classes.

 
omarfaridCommented:
when you say unplug the first nic, do you mean the cable?

Also, why do you haveboth nics in the same subnet?
0
 
smurguAuthor Commented:
Yes I unplug the cable.

Its not my network, and I don't have any control over its configuration. I need to use the second nic in case the first one fails without IPMP or link aggregation.
0
 
omarfaridCommented:
can you show the output of

netstat -rn

0
 
smurguAuthor Commented:
Routing Table: IPv4
  Destination           Gateway           Flags  Ref     Use     Interface
-------------------- -------------------- ----- ----- ---------- ---------
default              192.168.1.161        UG        1        100          
192.168.1.0          192.168.1.67         U         1          4 bge0      
192.168.1.0          192.168.1.68         U         1          0 bge1      
224.0.0.0            192.168.1.67         U         1          0 bge0      
127.0.0.1            127.0.0.1            UH        4        117 lo0    
0
 
omarfaridCommented:
OK, from the routing table, the network 192.168.1.0 is reachable through bge0 and bge1

If you shutdown the bge0 interface with

ifconfig bge0 down

do you still get the problem?
0
 
smurguAuthor Commented:
No if I put that interface down it works but I have to switches and each nic is plug in a diferent switch. I need to be able to send and receive trafic if one of the switch is down.
0
 
smurguAuthor Commented:
can you give me an example of the script and also if you can tell me how this script will detect the link-failure. I know this is a diferent question than the original one let me know if I have to close this and open a new question.

Thank you,
0
 
omarfaridCommented:
Sorry that you closed the question before reaching a solution, but you can try to see if you can run snmp

and use

/usr/sfw/bin/snmpwalk

to get the interface status then try to do something.

Also you may try

/usr/sbin/ndd -get  /dev/bge  link_status

But I do not have two interfaces to test with and see what it return
0
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

All Courses

From novice to tech pro — start learning today.