08-01-2006
Networking help...
Please accept my apology ahead of time. Our AIX admin left the company unexpectedly and I am now left with trying to get a p570 w/5.3 setup. I had the help of an IBM reseller on setting up the LPARs, but need some quick questions answered.
1. I have 1 on-board NIC and 2 slot NICs. How do I know which is en0, en1, etc... I am assuming that en0 is on-board, the first (from the left) NIC slot is en1, and 2nd slot is en2. Am I correct? Also, why would I see a en3 as well if I don't have a 4th NIC?
2. Am I able to configure multiple gateways? i.e. en0 set to a management VLAN and en1 to a prod VLAN. It seems that when I change en0 or en1 within SMIT, it changes the gateway for both.
If there are any helpful pointers out there that you might have regarding this, please let me know. I would rather read some good documentation regarding this, I just can't seem to find these specific questions...
Thanks and again, I apologize for the newbie questions...
~Josh
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EN(4) BSD Kernel Interfaces Manual EN(4)
NAME
en -- device driver for Midway-based ATM interfaces
SYNOPSIS
To compile this driver into the kernel, place the following lines in your kernel configuration file:
device en
device atm
device utopia
Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):
if_en_load="YES"
DESCRIPTION
The en device driver supports Midway-based ATM interfaces including the Efficient Networks, Inc. ENI-155 and Adaptec ANA-59x0. Midway is an
AAL5 SAR (Segmentation and Reassembly) chip.
For configuring the card for IP see natmip(4).
The following sysctls are recognized by the driver additionally to those handled by utopia(4):
hw.atm.enX.istats
Contains an array of uint32_t with internal driver statistics.
hw.atm.enX.debug
This is a bit map of debugging options. This variable is only available when the driver is compiled with debugging support.
The driver supports the media options sdh, noscramb and unassigned (see utopia(4)).
DIAGNOSTICS
en0 <Efficient Networks ENI-155p> rev 0 int a irq 5 on pci0:16
en0: ATM midway v0, board IDs 6.0, Utopia (pipelined), 512KB on-board RAM
en0: maximum DMA burst length = 64 bytes
en0: 7 32KB receive buffers, 8 32KB transmit buffers allocated
SEE ALSO
natm(4), natmip(4), utopia(4), ifconfig(8), route(8)
AUTHORS
Chuck Cranor of Washington University implemented en driver in 1996 for NetBSD.
CAVEATS
The driver extensively uses DMA on PCI. The first generation PCI chipsets do not work or exhibit poor performance.
BSD
July 16, 2005 BSD