I've got an issue with a VMWare server running RHEL 6.3 that has dual E1000 NICs. I have configured the cards as I would normally do in /etc/sysconfig/network-scripts as ifcfg-eth0 and ifcfg-eth1. I can execute ifup eth0 and bring the interface up quite happily, however when I execute ifup eth1 it succeeds but the IP details are assigned to eth0 and eth1 has no IP details as shown below:
I've checked /etc/udev/rules.d/70-persistent-net.rules and the MAC addresses match what is in vSphere for the virtual hardware. I can't find anything else that appears weird or unexpected.
Does anyone have any ideas as to what I might have screwed up here?
when i finish installed rhel 4.4 to my hp dl585 box, ifcfg-eth0 and ifcfg-eth1 is not available.when i ifconfig -a,i can not see the eth0 and eth1, only lo0 and si0. Unlike to the other server i found eth0 and eth1 files in
/etc/sysconfig/network-scripts/.
what will i do? (2 Replies)
I have been looking in the scripts for interface management, in an effort to kick off a script of my own on any "significant network event" (I will qualify that in a bit)
I managed to add a check to tell netplugd to run my script every time there is a hot-plug event. Now I need to make it so my... (0 Replies)
I have a little script in the /etc/network/if-up.d (debian). It should do something and write the output to a log file. But it doesn't seem to work.
ifup wlan0 dosomething >> /var/log/dosomething.log
I would like to add the date to the output, can somebody help me please?
Thanks! (6 Replies)
Hi Guys,
is there a way to send traffic coming from the source iface (eth0, eth1)? i need to test traffic that will come from both eth0 and eth1 from a Linux box.
Thanks,
Martin (0 Replies)
Hi Guys,
I am working as a L-1 support and i want to know that are the precaution need to take on eth0(Ethernet card) i heard on production server it is very much important, what are the steps need to observe on this tickets. (1 Reply)
hi there
the ethernet wire was out of the pc when the system started.
#ifconfig
#ifconfig -a
i did not get any ip for eth0.
i plug the cable into the pc
#ifdown eth0
#ifup eth0
now the ip address is assigned to eth0
Question is : IS this right way to bring ethernet down... (2 Replies)
hello,
first of all i am new to unix so maybe my problem is very easy for many of you but is very important to me.
So the idea is that i want to use a ubuntu 10.4 machine as a router from eth0 to eth1.
but the traffic routing is nor working properly
i configured the 2 interfaces to be... (2 Replies)
hellow everbody.
iam using 32 bit centos 6.2 on my desktop and iam new to linux. i have eth0 and eth1 on my desktop. so i have some problems i have menson here:
i have edited:
etc/sysctl.conf
net.ipv4.ip_forward = 1
and i have edited iptables too
# iptables -t nat -A... (2 Replies)
I have a local network on dev eth0
Server has static IP of 10.0.0.1
Gateway is 10.0.0.1
and Dns is 10.0.0.1
I am using this network for imaging 500 plus computer...
Now, Issue that I am having is that I need to update packages and I dont want to change the configuration on eth0 because I... (0 Replies)
Hi, I use ubuntu 16.04 desktop with ufw (default setup + 22, 80, 443 ports open).
I connect directly to ISP using pppoe over eth0. I also have eth1 which when disabled the websites are accessible in browser. When starting eth1 with auto dhcp the websites are no longer accessible in browser (give... (3 Replies)
Discussion started by: adrhc
3 Replies
LEARN ABOUT PHP
tc-bfifo
PBFIFO(8) Linux PBFIFO(8)NAME
pfifo - Packet limited First In, First Out queue
bfifo - Byte limited First In, First Out queue
SYNOPSIS
tc qdisc ... add pfifo [ limit packets ]
tc qdisc ... add bfifo [ limit bytes ]
DESCRIPTION
The pfifo and bfifo qdiscs are unadorned First In, First Out queues. They are the simplest queues possible and therefore have no overhead.
pfifo constrains the queue size as measured in packets. bfifo does so as measured in bytes.
Like all non-default qdiscs, they maintain statistics. This might be a reason to prefer pfifo or bfifo over the default.
ALGORITHM
A list of packets is maintained, when a packet is enqueued it gets inserted at the tail of a list. When a packet needs to be sent out to
the network, it is taken from the head of the list.
If the list is too long, no further packets are allowed on. This is called 'tail drop'.
PARAMETERS
limit Maximum queue size. Specified in bytes for bfifo, in packets for pfifo. For pfifo, defaults to the interface txqueuelen, as speci-
fied with ifconfig(8) or ip(8). The range for this parameter is [0, UINT32_MAX].
For bfifo, it defaults to the txqueuelen multiplied by the interface MTU. The range for this parameter is [0, UINT32_MAX] bytes.
Note: The link layer header was considered when counting packets length.
OUTPUT
The output of tc -s qdisc ls contains the limit, either in packets or in bytes, and the number of bytes and packets actually sent. An
unsent and dropped packet only appears between braces and is not counted as 'Sent'.
In this example, the queue length is 100 packets, 45894 bytes were sent over 681 packets. No packets were dropped, and as the pfifo queue
does not slow down packets, there were also no overlimits:
# tc -s qdisc ls dev eth0
qdisc pfifo 8001: dev eth0 limit 100p
Sent 45894 bytes 681 pkts (dropped 0, overlimits 0)
If a backlog occurs, this is displayed as well.
SEE ALSO tc(8)AUTHORS
Alexey N. Kuznetsov, <kuznet@ms2.inr.ac.ru>
This manpage maintained by bert hubert <ahu@ds9a.nl>
iproute2 10 January 2002 PBFIFO(8)