RE: BGP Multihoming 2 providers full or partial?
Can your devices support a full table? You can load balance outbound traffic easily with out doing a full table. THo that won't be the shortest AS path. In regards to cost savings how were you thinking of doing so? Does one provider charge more? Just use the cheaper provider. -Original Message- From: NANOG [mailto:nanog-boun...@nanog.org] On Behalf Of Maqbool Hashim Sent: Friday, May 29, 2015 3:37 AM To: nanog@nanog.org Subject: BGP Multihoming 2 providers full or partial? Hi, We are an enterprise that are eBGP multihoming to two ISPs. We wish to load balance in inbound and outbound traffic thereby using our capacity as efficiently as possible. My current feeling is that it would be crazy for us to take a full Internet routing table from either ISP. I have read this document from NANOG presentations: https://www.google.com/url?sa=trct=jq=esrc=ssource=webcd=1cad=rjauact=8ved=0CCoQFjAAurl=https%3A%2F%2Fwww.nanog.org%2Fmeetings%2Fnanog41%2Fpresentations%2FBGPMultihoming.pdfei=cyRnVb--FeWY7gbq4oHoAQusg=AFQjCNFsMx3NZ0Vn4bJ5zJpzFz3senbaqgbvm=bv.93990622,d.ZGU The above document reenforces my opinion that we do not need full routing tables. However I was seeking some clarity as there are other documents which suggest taking a full routing table would be optimal. I guess it depends on our criteria and requirements for load balancing: - Just care about roughly balancing link utilisation - Be nice to make some cost savings We have PI space and two Internet routers one for each ISP. Either of our links is sufficient to carry all our traffic, but we want to try and balance utilisation to remain within our commits if possible. I am thinking a rough approach for us would be: - Take partial (customer) routes from both providers - Take defaults from both and pref one Maybe we can refine the above a bit more, any suggestions would be most welcome! Many Thanks
Verizon FIOS and DSL issues in North Texas Area
Hey list, Been seeing issues hitting youtube/wikipedia and other random websites from the north texas area when taking Verizon FIOS and DSL. Haven't been able to narrow it down to any traceroutes or pings as they all seem to be OK. Have reports from other Verizon customers seeing the same issues yesterday and today. Thanks Joseph
Integra Telecom BGP contact
Anyone from Integra Telecom who knows their BGP routing on list? I have an open ticket but can't get past the noc techs and the issue is a weird one. Thanks!
Re: Advisory — D-root is changing its IPv4 address on the 3rd of January.
Mike, You will need to update your root.hints file on any of your forwarding DNS servers. Most OS vendors will include an update but its a good idea to manually check. On Fri, Dec 14, 2012 at 10:59 AM, Michael Thomas m...@mtcc.com wrote: Matthew Newton wrote: On Fri, Dec 14, 2012 at 04:42:46PM +, Nick Hilliard wrote: On 13/12/2012 22:54, Jason Castonguay wrote: Advisory — D-root is changing its IPv4 address on the 3rd of January. You've just given 3 weeks notice for a component change in one of the few critical part of the Internet's infrastructure, at a time when most I think that /was/ the advance notification - you've got 6 months :) The old address will continue to work for at least six months after the transition, but will ultimately be retired from service. So really stupid question, and hopefully it's just me, do I need to do something on my servers? Second question: I know that renumbering is important in the abstract, but is there really an overwhelming reason why renumbering the root servers is critical? Shouldn't they all be in PI space for starters? Mike
RE: Internet routing table completeness monitoring?
I have cacti graph the amount of prefixes announced and withdrawn from a BGP peer on each BGP router. -Original Message- From: ML [mailto:m...@kenweb.org] Sent: Tuesday, October 02, 2012 11:43 PM To: North American Networking and Offtopic Gripes List Subject: Internet routing table completeness monitoring? Has anyone put in place a method to identify if one their BGP peers suddenly withdraws X% of their prefixes? e.g I should expect ~420k prefixes in a complete[1] routing table from a transit peer today. If suddenly I'm only getting 390k prefixes I'd guess a major network was depeered or similiar. If so how are people doing this? SNMP MIB, screen scrape? [1] Varying levels of completeless apply.
RE: Internet routing table completeness monitoring?
Not sure I don't have any non-cisco BGP routers. Sorry! -Original Message- From: Neil Robst [mailto:neil.ro...@kit-digital.com] Sent: Wednesday, October 03, 2012 8:54 AM To: Joseph Jackson; m...@kenweb.org; North American Networking and Offtopic Gripes List Subject: RE: Internet routing table completeness monitoring? This is still only possible on Cisco routers, isn't it - Foundry/Brocade gear doesn't currently include an SNMP OID for this info, does it? -Original Message- From: Joseph Jackson [mailto:jjack...@aninetworks.net] Sent: 03 October 2012 14:51 To: m...@kenweb.org; North American Networking and Offtopic Gripes List Subject: RE: Internet routing table completeness monitoring? I have cacti graph the amount of prefixes announced and withdrawn from a BGP peer on each BGP router. -Original Message- From: ML [mailto:m...@kenweb.org] Sent: Tuesday, October 02, 2012 11:43 PM To: North American Networking and Offtopic Gripes List Subject: Internet routing table completeness monitoring? Has anyone put in place a method to identify if one their BGP peers suddenly withdraws X% of their prefixes? e.g I should expect ~420k prefixes in a complete[1] routing table from a transit peer today. If suddenly I'm only getting 390k prefixes I'd guess a major network was depeered or similiar. If so how are people doing this? SNMP MIB, screen scrape? [1] Varying levels of completeless apply.
Re: World IPv6 Only Day.
Wouldn't the multicast flooding be just like broadcasts tho? Some of my sites don't have switches that will be upgraded or upgradeable to software that will support IPv6 directly (at least not for a few years). Is that going to cause major headaches? I under stand the RA risks but the DHCPv6 snooping I'm not too clear on. On Thu, Jun 9, 2011 at 1:55 AM, Tim Chown t...@ecs.soton.ac.uk wrote: On 9 Jun 2011, at 05:36, Karl Auer wrote: On Wed, 2011-06-08 at 17:37 -1000, Paul Graydon wrote: Dumb question.. what does the switch (L2) have to do with IPv6 (L3), or is it one of those 'somewhere in between the two' things? Well, a modern switch should work fine, even if not directly IPv6 aware, but it won't understand multicast and will generally flood multicast frames to all interfaces. So definitely stipulate IPv6 capability, even for switches And it won't have DHCPv6 snooping, or tools to mitigate rogue RAs. Tim
RE: Google wants your Internet to be faster
-Original Message- From: Jeroen van Aart [mailto:jer...@mompl.net] Sent: Tuesday, August 10, 2010 3:33 PM To: NANOG list Subject: Re: Google wants your Internet to be faster Kevin Oberman wrote: That said, the actual, published document has some huge issues. It pays excellent lip service to net neutrality, but it has simply HUGE loopholes with lots of weasel words that could be used to get away with most anything. for example, it expressly excludes and wireless network. Not having read any of the articles and not having researched the matter of network neutrality much at all. But wouldn't using either a VPN service or setting up VPN on one or more virtual servers at strategic locations of your choice avoid this? Unless they try to bandwidth limit your VPN tunnel(s) indiscriminately. Or did I miss something blatantly obvious? At least VPN does a great job of routing around GeoIP blocking... The way I understand it is if you aren't paying for preferred service then your VPN traffic would be at the bottom of the stack on forwarding. So while it gets around GeoIP stuff vpns would be subject to the same quality of service settings as any other traffic that isn't paying for a faster service. Joseph
Linux Network Generator
Hey list, I've been doing some stress testing of a router this week using Network Traffic Generator from http://sourceforge.net/projects/traffic/ and while it works well I was wondering what other generators you all have used and find helpful. Maybe something that Traffic doesn't do like provide response times and other stats.. tho I realize iperf would be a better app for that.
DNS query analyzer
Hey List! Anyone know of a tool that can take a pcap file from wireshark that was used to collect dns queries and then spit out statistics about the queries such as RTT and timeouts? Thanks! Joseph
