similar to: RFC - bandwidth optimization idea

Hi, How can i count the number of packets on an interface evry 2 or 5 seconds. and i want to count only specific packets like only arriving packets from port 5001 Any thoughts... Muhammad

I have this problem: I have an Internet line input with variable speed. I have a max speed and a min speed: Vmax and Vmin. The speed is always changing between Vmax and Vmin. I want to share the actual bandwidth (you don''t not how much, you only know the speed is between Vmax and Vmin) for N clients. The bandwidth should be shared so nobody can get more bandwidth than the others.

I notice one other small problem with my modified version of SFQ. The fact that packets can be dropped at dequeue time is incompatible with the way HTB (and probably CBQ and others modeled on it) keep statistics. When I fill a low rate queue causing packets to expire and be dropped at dequeue I get interesting statistics like this: This is my variant of SFQ qdisc plfq 8016: dev eth1 ... Sent

Hi. I''m trying to get a traffic shaper like this: ------ VoIP pkts --> | |_| ------ \ | ---O -> ------ / Data pkts --> | ------ In this shaper voip packets are in a different queue than any other kind of packet. I want a data packet to be

I think that there are no qdiscs that permit to drop the oldest frame of a queue when this queue is full, but I would like to be wrong: bfifo drops arriving frames when the max queue length is reached. red also drops arriving frames in a more elaborate fashion, with a drop probability that increases above a limit and becomes a drop certitude when the max queue length is reached. sfq drops

Hello, Could somebody explain following issue ? I set up htb class on outgoing external interface to shape p2p upload traffic. I limited it to 4Mbit/s. I also set up iptables counters chains in FORWARD chain to calculate traffic generated by p2p and others. While tc stats show that p2p shaping class keep defined 4Mbit traffic, iptables counters show me that p2p traffic exceed traffic to 150%

To stress the urgency and importance of my questions, I am willing to pay $100 to the first person that can provide me with the scripts/ rules that will work in my SnapGear firewalls that will solve the problems I am having. Please see the following post: Linux QOS and prioritization of real-time data (RTP/VoIP) Thank you!

Hello, I run one of my PCs as my personal router, with iptables+tc to control traffic and be my firewall. In TC, I use a combination of htb, qdisc and sfq (as well as prio) to classify bandwidth. In my current setup, I have 10 classifications of my bandwidth. (Even I admit this is probably more than I need, but at this point I''m still learning, so I''ll just leave them be.)

Hi, I would like to make a QoS configuration on a linux based dsl router. It is for a server, so I want to shape outgoing traffic, incoming traffic should not be a problem as long as I have a quite assymetric connection. I would like to achieve the following goals: 1) To have one class (p2p) having all the available bandwith if there is no activity on other classes. 2) If another class (ftp

As seen on my post at: http://www.sveasoft.com/modules/phpBB2/viewtopic.php?p=28112#28112 This works very well... It does NOT work with stable 4.0! sveasoft will be issuing a bug fix for this (4.1) in the near future. Final Rev of working script w/ asterisk support I'm not going to run alchemy on production machines until it is stablish. Remember to set your uplink properly and to set

Hi all, First, let me say I''ve been most impressed with how quickly and professionally people on this list ask and answer questions. Next, let me say that with which I need help is properly configuring strict PQ, and gathering certain stats. Specifically: - I need to create a priority queue with four queues (let''s say they are of high, medium, normal, and low priority) - I

Hello - What I want to do seems very simple - I want to make sure any H.323 traffic gets processed before anything else entering or leaving this network. The network has a videoconferencing device on the LAN at 192.168.16.4. A Linux firewall NATs an external IP Address to this internal address and I have appropriate SNAT and DNAT rules that work. The NAT and connection tracking rules all work

I would like to differentiate incoming traffic streams to guarantee minimum bandwidth to some services. However, as per the Adv-Routing-HOWTO it appears that only outgoing traffic can be shaped. Is this correct or is there a way of shaping incoming traffic? The problem could possibly be overcome if there is a way of routing traffic through a virtual host. Any tips on how to go about that? --

Hi I''m newbie on this and i would appreciate some pointers on how to limit the http trafic to my users from my linux-gateway box. Thanx in advance -- Guillermo Gomez <ggomez@neotechgw.net> neotech _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/

Hi all, I am having some fun with traffic shaping, and have run into an interesting situation. Here is South Africa, most internet links are heavily oversubscribed, which means that in most cases the local link is _not_ the bottleneck, and shaping on the local link does not help that much... Does anybody have some tips on shaping such links? How can you get interractive traffic if you

Hi all, I''ve not been able to find an explanation of the relationship between prio and rate as they apply to the HTB technique. Hopefully someone on here will be able to help me. As I understand things, when prio values are assigned to an HTB setup, classes with a given prio value will only be serviced when there are no packets waiting in classes with a lower prio value. Now, does

[I sent this earlier but I guess the list is subscriber-only?] I just set up wondershaper, it has a simple filter on the downstream direction to limit the bandwidth usage: tc qdisc add dev $DEV handle ffff: ingress tc filter add dev $DEV parent ffff: protocol ip prio 50 u32 match ip src \ 0.0.0.0/0 police rate ${DOWNLINK}kbit burst 10k drop flowid :1 This is effective but is there any way to

Hi, I''m using vpnc to connect to a vpn. The VPN-GW wants me to use him as a default route. So I used source-routing to differ between my physical ethernet and the tunnel: ip rule add from w.x.y.z table 20 ip route add default via tun0 table 20 Everything works fine, as I have a client to set my inet4-srcaddress. My question is: Is there a way, to tell linux which is my default

Hello, I am trying to mess with a prio type qdisc, and must be missing something. Here''s my sample code: tc qdisc add dev eth0 root handle 1: prio tc filter add dev eth0 parent 1:0 prio 1 protocol ip u32 \ match ip dst 208.0.0.0/8 flowid 1:1 tc filter add dev eth0 parent 1:0 prio 3 protocol ip u32 \ match ip dst 0.0.0.0/0 flowid 1:3 I would assume that any traffic going to

I''m successfully using HTB + GRED to shape traffic based on the DSCP field. I would like to strip the DSCP and possibly replace it with normal ToS bits on egress traffic leaving my network. Leaving DSCP set is pointless, and could potentially cause problems with some ISPs that use DSCP internally I suppose. Setting ToS bits would seem ideal as most networks still honor it to varying