| ↑back Search ←Prev date Next date→ Show only urls | (Click on time to select a line by its url) |
| Who | What | When |
|---|---|---|
| *** | grepidemic has quit IRC (Ping timeout: 252 seconds)
grepidemic has joined #arpnetworks | [06:04] |
| ............ (idle for 55mn) | ||
| m0unds has quit IRC (Quit: derf)
m0unds has joined #arpnetworks | [07:01] | |
| novae has quit IRC (Ping timeout: 245 seconds) | [07:14] | |
| ..................... (idle for 1h43mn) | ||
| carvite has quit IRC (Remote host closed the connection) | [08:57] | |
| Erick- has joined #arpnetworks | [09:05] | |
| ................... (idle for 1h31mn) | ||
| Erick- | !help | [10:36] |
| brycec | 89With?
*With? | [10:40] |
| .......... (idle for 47mn) | ||
| *** | carvite has joined #arpnetworks | [11:27] |
| m0unds has quit IRC (Quit: yerf)
mus1cb0x has joined #arpnetworks | [11:40] | |
| mus1cb0x | anyone know why i'd be getting silent broken pipes to my vps on kvr14 lately? | [11:42] |
| mnathani | mus1cb0x: what OS? | [11:43] |
| mus1cb0x | fbsd 9.2
same as another vps on another kvr which doesn't break pipe | [11:43] |
| .... (idle for 16mn) | ||
| *** | m0unds has joined #arpnetworks | [11:59] |
| ..................................... (idle for 3h0mn) | ||
| mnathani | Is there such a thing as a development version of the internet, a place where one can test BGP configurations without the risk of messing up any production networks? | [14:59] |
| m0unds | labs
build a lab w/a few devices that speak bgp then you can simulate to your heart's content | [15:05] |
| mercutio | mnathani: it's called a local network
if you want a full route table you can probably get one passively that you can't route you can't really mess up much with bgp as long as both ends have filters. so if the other end filters what ip addreses you can adverrtise, you just set aside those ip's to advertise and make sure they're not in use from other things then advertise those ip's... and you can use a private asn if you don't have a bgp asn | [15:21] |
| mnathani | Definitely need to start with a private ASN
does IPv6 work pretty much the same as v4 with BGP? | [15:29] |
| mercutio | you can reuse an asn in more than one place on a network
yeah you have ipv4 and ipv6 bgp sessions separate and ipv4 is over ipv4 and ipv6 is over ipv6 subnetting is more complicated :) cos so many ip's to choose for link address but lots of people are using /64s to connect to each other on ipv6 and /30s on ipv4 in theory you can use /31s and /127s | [15:29] |
| mnathani | > /48 per site | [15:32] |
| mercutio | nah for the link address to the bgp neighbour
for directly connected links | [15:32] |
| mnathani | right | [15:32] |
| mercutio | i wonder what arp does | [15:32] |
| mnathani | a /48 is like 65000 /64s right? | [15:32] |
| mercutio | a /64 can lead to neighbour discovery
err implies which isn't really necessary for connecting point to point links | [15:39] |
| mnathani | Event if you do use a /127 you are not likely to use any other subnets from that /64 for anything else? | [15:40] |
| .... (idle for 15mn) | ||
| *** | novae has joined #arpnetworks | [15:55] |
| ....... (idle for 34mn) | ||
| mercutio | blah blah power problems | [16:29] |
| m0unds | POWAR | [16:30] |
| ............. (idle for 1h4mn) | ||
| mnathani | How would I test packet prioritization on a local LAN? | [17:34] |
| mercutio | use iperf to blast udp traffic? | [17:35] |
| mnathani | if voip traffic was being prioritized - the iperf traffic should transmit with a lower priority / dropped packets? | [17:36] |
| mercutio | yeh
where's it being prioritised? if you go gigabit -> 100 megabit -> 10 megabit | [17:39] |
| mnathani | presently in a mikrotik vm | [17:39] |
| mercutio | wehre 100 to 10 is the itnernet and gigabit to 100 megabit is the router
then flooding 100 megabit will still give you issues but you should be able to flood 20 megabit and have a voice call usually fast to slow connectinos don't work very well without aqm | [17:39] |
| mnathani | I guess I would flood with the prioritization disabled to compare | [17:40] |
| mercutio | and switches don't normally have good aqm
if you're going gigabit to gigabit to 100 megabit then linux can congest the queue on the ethernet reducing txqueuelen or using aqm can help fq_codel is kind of cool and easy to configure, and works fine at gigabit speeds tc qdisc add dev eth0 root fq_codel only in recent kernels though on older stuff i would normally just use sfq but sfq doesn't work well for things like bittorrent, but it's generally fine for light networks ie mixing buik/interactive sfq is basicallyl like having 8 queues and randomly splitting between them so it usually works but if you have lots of bulk senders it doesn't tend to work it may not be as bad as without, but won't really fix things normal linux has some prioritisation too but you have to reduce queue length to really benefit and uhh change ring size on the ethernet driver | [17:40] |
| m0unds | w/mikrotik it's easier to use a queue tree w/global queues and subqueues
makes it easier to visualize the traffic too as far as impact of qos on it, ensuring stuff you expect to be hitting a particular queue is in fact hitting it and being impacted the way you intend | [17:46] |
| mnathani | how does the 'priority' field work, presently my queue has it set to 8
is higher better, or lower? and the queue types confuses me: pfifo vs sfq, vs pcq, vs red | [17:47] |
| mercutio | i wouldn't even touch priorities myself
just use aqm voip is pretty tolerant skype is worse because you tend to talk to people further away,.. | [17:49] |
| m0unds | http://wiki.mikrotik.com/wiki/Manual:Queues_-_PCQ | [17:50] |
| mercutio | you can only relaly fix outbound traffic too | [17:50] |
| m0unds | ehh, you can apply downstream limiters to prevent latency from spiking | [17:50] |
| mnathani | can you do something like allow download upto and untill ping to certain destination gets higher than desired limit, kind of variabla like that? | [17:52] |
| m0unds | i just tested with my particular connection
pull down a ton of traffic, note when latency starts getting out of hand, limit to a point before that same with upstream with my 50/10 at home, it ends up being 48 down 8 up | [17:52] |
| mnathani | so once those limits are set, pretty much no amount of downloading would drastically increase latency? | [17:53] |
| m0unds | right
i could saturate my downstream at home to 48mbit without latency and jitter getting wacky so i rate limit traffic to 48 down, 8 up and then assign classes to traffic types to give higher priority to certain traffic the higher priority part allows multiple high-bandwidth applications to operate on my network without degrading voice or gaming or whatever my goal was to make it possible for me to play $somegame with my wife streaming HD video from amazon or netflix without impacting gameplay was trying to see if i had a copy of my mikrotik config somewhere as an example. seems like i don't | [17:54] |
| mnathani | what mikrotik model do you use? | [17:59] |
| m0unds | i had an rb450g for a long time, it was an early hw rev and had some power circuitry issues. when it died, i swapped it for an rb1100ahx2 because i got a good deal on it ($200) and ended up selling that to buy an SRX210he because the 1100 was way too quirky for me | [18:00] |
| .......... (idle for 45mn) | ||
| *** | novae has quit IRC (Ping timeout: 255 seconds)
novae has joined #arpnetworks grepidemic has quit IRC (Quit: leaving) | [18:45] |
| grepidemic has joined #arpnetworks | [18:56] | |
| .......... (idle for 46mn) | ||
| acf_ has quit IRC (Read error: No route to host) | [19:42] | |
| .... (idle for 18mn) | ||
| grepidemic has left "WeeChat 0.3.8"
acf_ has joined #arpnetworks grepidemic has joined #arpnetworks | [20:00] | |
| ............................. (idle for 2h22mn) | ||
| mus1cb0x has left "WeeChat 0.4.2" | [22:23] | |
| mercutio | mnathani: fq_codel is meant to behave kind of like that
http://www.bufferbloat.net/projects/codel/wiki | [22:26] |
| ↑back Search ←Prev date Next date→ Show only urls | (Click on time to select a line by its url) |