Need help with configuring large packet size on Solaris 7 / e6500


 
Thread Tools Search this Thread
Operating Systems Solaris Need help with configuring large packet size on Solaris 7 / e6500
# 1  
Old 04-06-2011
MySQL Need help with configuring large packet size on Solaris 7 / e6500

Greetings, I'm stuck in a time warp using ancient machines from the prehistoric era that should be rightfully displayed in the Smithsonian.

We're running Solaris 7 on FDDI n/w on an E6500 host and wish to use MTU (packet size) > 1500, more like 3072 bytes to begin with and possibly up to 4096 bytes.

Linux has /etc/network/interfaces. Does ANYONE remember the equivalent in Unix? When I do ifconfig eth0 mtu 4000, I get the error SIOCSIFMTU: Invalid argument

Thanks in advance
# 2  
Old 04-06-2011
You have to be sure that the network card supports frames bigger than 1500. What does this say:
Code:
ifconfig -a

PS: I've never seen eth0 interface on Solaris...
# 3  
Old 04-07-2011
Question Output of ifconfig

Code:
hme0: flags=863<UP,BROADCAST,NOTRAILERS,RUNNING,MULTICAST> mtu 1500
        inet 192.168.1.2 netmask ffffff00 broadcast 192.168.1.255
hme1: flags=863<UP,BROADCAST,NOTRAILERS,RUNNING,MULTICAST> mtu 1500
        inet 192.168.2.2 netmask ffffff00 broadcast 192.168.2.255
nf0: flags=863<UP,BROADCAST,NOTRAILERS,RUNNING,MULTICAST> mtu 1500
        inet 155.84.4.17 netmask ffff8000 broadcast 135.84.127.255
nf0:1: flags=843<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
        inet 155.84.4.26 netmask ffff8000 broadcast 135.84.127.255


AFAIK, there is a config file to change the max MTU size for a device (i.e. NIC). I've seen it done in Linux and for the life of me, I can't remember how we used to handle larger packets in Solaris, as I've been away from Solaris 7 and antiquated infrastructure for over a decade now Smilie

Last edited by DukeNuke2; 04-07-2011 at 03:50 AM..
# 4  
Old 04-07-2011
Code:
# ifconfig hme0 mtu 1492

should work.
# 5  
Old 04-07-2011
Question

I can already do upto 1500 bytes in MTU size, I wish to know how to access upto 4000 bytes to take advantage of FDDI
# 6  
Old 04-07-2011
so... set it to 4000. it's the same command...
# 7  
Old 04-07-2011
Quote:
Originally Posted by DukeNuke2
Code:
# ifconfig hme0 mtu 1492

should work.
The thing is, OP said that he needs to change MTU on FDDI NIC, which is nf0 in this case Smilie (from what I found on the Internet - http://download.oracle.com/docs/cd/E...06-3610-11.pdf)
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Large Variable content size caveats?

Hi, I wrote a shell script, which let me manage dns records through an api. The raw core-command looks like about this: output="$(curl -X GET https://mgt.myserver.de:8081/api/v1/servers/localhost/zones)"The output contains a list of all zones with all records and is about 800 Kilobytes... (9 Replies)
Discussion started by: stomp
9 Replies

2. AIX

Packet loss coming with big packet size ping

(5 Replies)
Discussion started by: Vishal_dba
5 Replies

3. Red Hat

Empty directory, large size and performance

Hi, I've some directory that I used as working directory for a program. At the end of the procedure, the content is deleted. This directory, when I do a ls -l, appears to still take up some space. After a little research, I've seen on a another board of this forum that it's not really taking... (5 Replies)
Discussion started by: bdx
5 Replies

4. Solaris

Solaris 2.6 looking for ARP/RARP packet

Hi Everybody :) This is my first post concerning Solaris 2.6 trying to boot on a Tadpole SparcBook 3. I bought the laptop from somebody who configured it for his network. For the moment I want it as a non-networked standalone machine, or at least have that option. On trying to boot I get an... (0 Replies)
Discussion started by: JuBiLeE_50_05
0 Replies

5. IP Networking

TCP Packet size

Hi! I'm writing an application (using BSD sockets on a Linux host) which communicates over TCP/IP with an embedded device. This embedded device has an old and real slow integrated circuit (Epson S1S6000) which handles all of the TCP/IP communication for it. Problem is, this circuit (S1S6000)... (7 Replies)
Discussion started by: olle
7 Replies

6. UNIX for Advanced & Expert Users

Need help with configuring large packet size on Solaris 7 / e6500

We're running Solaris 7 on FDDI n/w on an E6500 host and wish to use MTU (packet size) > 1500, more like 3072 bytes to begin with and possibly up to 4096 bytes. Linux has /etc/network/interfaces. Does ANYONE remember the equivalent in Unix? When I do ifconfig eth0 mtu 4000, I get the error... (0 Replies)
Discussion started by: sharique
0 Replies

7. HP-UX

how to get network packet size

how to get network packet size I would like get network output rate(kb/sec) I type command "netstat -i" Ipkts Ierrs Opkts Oerrs 653387 0 678202 0 but i didn't know what is it packet size , how could i get it? (1 Reply)
Discussion started by: alert0919
1 Replies

8. UNIX for Advanced & Expert Users

0821-077 ping: illegal packet size.

Hi, When i try this command ping ukblx151.ukhx.astrazeneca.net -n 3 | grep icmp it gives following error :mad:: 0821-077 ping: illegal packet size. But when i give command ping ukblx151.ukhx.astrazeneca.net It returns correct output.:D Could you please help? (2 Replies)
Discussion started by: vishal_ranjan
2 Replies

9. UNIX for Dummies Questions & Answers

Editing a large size file

I would like to edit a doc which is large file size. I can't use "vi" command due to out of memory. $ vi large.dat ex: 0602-101 Out of memory saving lines for undo. Please help. Thanks. (2 Replies)
Discussion started by: Rock
2 Replies

10. UNIX for Dummies Questions & Answers

prevent file size is too large

We have EDP members will do some testing job in my system , but sometimes these process will generate some error to the system log or any file ( usually the members don't know the log is reached to this level ) , then make the system crashed , could suggest the way how can to prevent this problem ?... (2 Replies)
Discussion started by: ust
2 Replies
Login or Register to Ask a Question