Re: [Nanog-futures] Conference Network Experiment policy
Hello: On 4/7/09 6:47 PM, Joe Provo nanog-...@rsuc.gweep.net wrote: Heya, There have been periodic inquiries for network-based experiments on the NANOG conference network. While there is a serious benefit to be gained by experimenters exposing their projects to the NANOG attendees, there is a need to balance that with meeting attendees having a functional network during the conference. We'd like to hear the community's opinion on this. The SC has drafted a Network Experiments policy based on prior experience and what we think our conference attendees need to have available while on-site. Please see the attachment below and share your opinions and suggestions. Cheers! I would prefer a segmented network that participants can choose to join as part of the experiment and leave the business-use network in place. A different VLAN/SSID/Subnet would suffice. Common infrastructure could still be overloaded but I don't expect it would work to have completely separate physical networks. Regards, Mike ___ Nanog-futures mailing list Nanog-futures@nanog.org http://mailman.nanog.org/mailman/listinfo/nanog-futures
Re: [Nanog-futures] MLC transparency issues
On Apr 7, 2009, at 8:12 PM, Gadi Evron wrote: Is it possible to form a basic policy to preface thread moderation? Example would be: 1. Email mailing list on the thread, asking for people to respond only if there is an operational content they wish to share, or refrain from doing so. 2. Moderate thread (with a waiting period between step #1 and step #2?) and email the list on the thread mentioning it was moderated. Then, if anyone has any issues with a specific case, they can discuss it on nanog-futures. Your example is similar to what the MLC has discussed internally. Once worked out we'll bounce it off nanog-futures. Until there is a policy in place, we're open to hearing ideas on nanog- futures about moderation. Kris MLC Chair ___ Nanog-futures mailing list Nanog-futures@nanog.org http://mailman.nanog.org/mailman/listinfo/nanog-futures
Re: Verizon EVDO Issues
On Tuesday 07 April 2009 22:10:24 Charles Wyble wrote: Been troubleshooting a very strange problem for a couple of weeks now. I have a few hundred systems deployed throughout the United States utilizing EVDO connectivity with Verizon as a carrier. They are stationary. Over the past few weeks clusters of them in SF and Lewisville TX and a few other areas have been failing intermittently. They are offline for several days, then online for a few days then go offline again. They are running Linux and PPPD. Do they maintain a continuous data link in normal operation (like, say, connectivity for a LAN, or backhaul for a camera or some such), or do they request the data link when they need to send [whatever] (like a discrete SCADA system)? My (user only) experience is that cellular data service doesn't handle long sessions well. signature.asc Description: This is a digitally signed message part.
Re: Verizon EVDO Issues
On 8/04/2009, at 10:27 PM, Alexander Harrowell wrote: Do they maintain a continuous data link in normal operation (like, say, connectivity for a LAN, or backhaul for a camera or some such), or do they request the data link when they need to send [whatever] (like a discrete SCADA system)? My (user only) experience is that cellular data service doesn't handle long sessions well. I've had great success with it. We have done live audio streaming over IP through a cellular service before. 64kbps ogg encoding. About 7 or so hours in one session. We used to do a cheap live broadcast from an outdoor event for a radio station. -- Nathan Ward
Equinix contact
Any good clueful network Engineers from Equinix on-list? If so, please contact me off-line as I noticed some oddball network behavior at some of your peering points. Regards, Stefan Fouant: NeuStar, Inc. Principal Network Engineer 46000 Center Oak Plaza Sterling, VA 20166 [ T ] +1 571 434 5656 [ M ] +1 202 210 2075 [ E ] stefan.fou...@neustar.biz [ W ] www.neustar.biz
Re: Equinix contact
* stefan.fou...@neustar.biz (Fouant, Stefan) [Wed 08 Apr 2009, 17:04 CEST]: Any good clueful network Engineers from Equinix on-list? If so, please contact me off-line as I noticed some oddball network behavior at some of your peering points. You do realise that the people who run an Internet exchange only manage the Ethernet switch and have no influence on participants' routing, right? If you're seeing odd things on your router directly connected to the IX switch you should have a better way of contacting your vendor than through the nanog mailing list. -- Niels.
RE: Equinix contact
Niels - this was an issue with the internet exchange netblock being leaked out to upstream providers and causing peering adjacencies to be established through indirect paths. It wasn't an issue with the router and it wasn't an issue with a peer. Thanks for your concern though... I think we got it handled now :) Stefan Fouant: NeuStar, Inc. Principal Network Engineer 46000 Center Oak Plaza Sterling, VA 20166 [ T ] +1 571 434 5656 [ M ] +1 202 210 2075 [ E ] stefan.fou...@neustar.biz [ W ] www.neustar.biz -Original Message- From: Niels Bakker [mailto:niels=na...@bakker.net] Sent: Wednesday, April 08, 2009 12:17 PM To: nanog@nanog.org Subject: Re: Equinix contact * stefan.fou...@neustar.biz (Fouant, Stefan) [Wed 08 Apr 2009, 17:04 CEST]: Any good clueful network Engineers from Equinix on-list? If so, please contact me off-line as I noticed some oddball network behavior at some of your peering points. You do realise that the people who run an Internet exchange only manage the Ethernet switch and have no influence on participants' routing, right? If you're seeing odd things on your router directly connected to the IX switch you should have a better way of contacting your vendor than through the nanog mailing list. -- Niels.
Cisco Audit Tool?
www.iquate.com http://www.iquate.com/ audit large network infrastructure; Cisco plus others; very flexible as you can drive your own queries across thousands of devices; Any views expressed in this message are the sender's own, and do not represent the views of iQuate except where the sender specifically states them to be the views of iQuate. This e-mail should only be read by those persons to whom it is addressed. Accordingly, we disclaim all responsibility and accept no liability (including in negligence) for the consequences of any person other than the intended recipients acting, or refraining from acting, on such information. If you have received this e-mail in error, please accept our apologies and we simply request that you delete this document. Any form of reproduction, dissemination, copying, disclosure, modification, distribution and/or publication of this e-mail is strictly prohibited iQuate is a trading name for eManageIT Ltd. Registered in Ireland - Number: 350019 Citywest National Digital Park, Dublin
L2 - L3 Etherchannel
Hi All, Is it possible to create L2 Etherchannel at one end and L3 etherchannel at another end? For Example: SW-1 interface GigabitEthernet1/1 channel-group 1 mode desirable channel-protocol pagp ! interface GigabitEthernet1/2 channel-group 1 mode desirable channel-protocol pagp ! interface Port-channel 1 no ip address switchport switchport access vlan 10 switchport mode access ! int vlan10 ip address 1.1.1.1 255.255.255.252 ! SW-2 interface Port-channel 2 ip address 1.1.1.2 255.255.255.252 ! interface GigabitEthernet1/1 no ip address channel-group 2 mode desirable channel-protocol pagp ! interface GigabitEthernet1/2 no ip address channel-group 2 mode desirable channel-protocol pagp ! I don't have a lab to test it, can somebody confirm if the connectivity will work between these devices as per this setup. Thanks, Amolak
Re: Verizon EVDO Issues
Alexander Harrowell wrote: On Tuesday 07 April 2009 22:10:24 Charles Wyble wrote: Been troubleshooting a very strange problem for a couple of weeks now. I have a few hundred systems deployed throughout the United States utilizing EVDO connectivity with Verizon as a carrier. They are stationary. Over the past few weeks clusters of them in SF and Lewisville TX and a few other areas have been failing intermittently. They are offline for several days, then online for a few days then go offline again. They are running Linux and PPPD. Do they maintain a continuous data link in normal operation (like, say, connectivity for a LAN, or backhaul for a camera or some such), or do they request the data link when they need to send [whatever] (like a discrete SCADA system)? My (user only) experience is that cellular data service doesn't handle long sessions well. I have a few Sprint EVDO cards. They go into standby when nothing is actively going on and fire up within seconds when there is something to do. I regularly use everything from SSH to streaming video without any issues. I only notice the delay with SSH when I don't type anything for a few minutes and it has to come active again, but I can leave it idle for hours and it never drops. As far as the OP goes, let them replace the cards if they think that's the problem. You and I may suspect something else is up, but if that's on their checklist, it is what it is. ~Seth
Re: L2 - L3 Etherchannel
Yes. On Wed, Apr 8, 2009 at 9:03 PM, Amolak amolak.si...@gmail.com wrote: Hi All, Is it possible to create L2 Etherchannel at one end and L3 etherchannel at another end? For Example: SW-1 interface GigabitEthernet1/1 channel-group 1 mode desirable channel-protocol pagp ! interface GigabitEthernet1/2 channel-group 1 mode desirable channel-protocol pagp ! interface Port-channel 1 no ip address switchport switchport access vlan 10 switchport mode access ! int vlan10 ip address 1.1.1.1 255.255.255.252 ! SW-2 interface Port-channel 2 ip address 1.1.1.2 255.255.255.252 ! interface GigabitEthernet1/1 no ip address channel-group 2 mode desirable channel-protocol pagp ! interface GigabitEthernet1/2 no ip address channel-group 2 mode desirable channel-protocol pagp ! I don't have a lab to test it, can somebody confirm if the connectivity will work between these devices as per this setup. Thanks, Amolak
Re: Verizon EVDO Issues
Do they maintain a continuous data link in normal operation (like, say, connectivity for a LAN, or backhaul for a camera or some such), or do they request the data link when they need to send [whatever] (like a discrete SCADA system)? My (user only) experience is that cellular data service doesn't handle long sessions well. Continuous operation. They have been working fine for some time. We have about 20 locations that aren't working, and over 200 that are working just fine.
Re: Verizon EVDO Issues
Update... First, thank you to all who replied off list. The general summary of the offlist replies, is that a PRL update may be needed. This of course doesn't appear doable via Linux, and our vendor (IRG) swore up and down this wouldn't be required. We had the tech remove the USB dongle (model 720) from the system and place it in his laptop. Came up and worked fine once vzaccess twiddled whatever bits it needed to. Charles Wyble wrote: Been troubleshooting a very strange problem for a couple of weeks now. I have a few hundred systems deployed throughout the United States utilizing EVDO connectivity with Verizon as a carrier. They are stationary. Over the past few weeks clusters of them in SF and Lewisville TX and a few other areas have been failing intermittently. They are offline for several days, then online for a few days then go offline again. They are running Linux and PPPD. Has anyone else seen anything like this? I realize that there are very few other organizations with a network footprint like ours (few hundred static EVDO cards). Other large users like FedEx and Amtrak aren't reporting any issues. Verizon wants to replace the cards, but that doesn't seem like a viable solution, as it's localized to a few areas and is intermittent. Replies on or off list appreciated.
RE: SLA packet loss base
Take a look at the BRIX active measurement instrumentation product which is now owned by EXFO. Many carriers use the BRIX probes to produce empirical data representing SLA values such as jitter, packet loss and round trip times for their network links. BRIX also has other more sophisticated application tests (VoIP codecs, etc.) which can be run from their distributed probes to any network end-point. -Original Message- From: 정치영 [mailto:lion...@samsung.com] Sent: Wednesday, April 08, 2009 5:14 PM To: nanog@nanog.org Subject: Fwd: SLA packet loss base Some people replied me about my questions. thanks for reply. However, what I want to know ultimately is something like technical proof or standard or experimentation information they can logically support SLA values in provider's IP network. For example, regarding packet loss, I found information it is based on voip service tolerance (al least below 1% packet loss). but some provider announce they can guarantee 0.3% packet loss. Where does 0.3% come from ? Can anyone give me an answer about this question ? In fact I am going to make some guideline of network quality of my network. Best regards, Chiyoung --- Original Message --- Sender : 정치영lion...@samsung.com 과장/인프라기술1팀/삼성네트웍스 Date : 2009-04-08 13:05 (GMT+09:00) Title : SLA packet loss base Hi all, I wonder where we can find the base of packet loss rate of Global famous provider. For example, the packet loss value of Sprint and NTT-Verio is same 0.3 % at their SLA. Best regards Chiyoung = Chi-Young Joung SAMSUNG NETWORKS Inc. Email: lion...@samsung.com Tel +82 70 7015 0623, Mobile +82 17 520 9193 Fax +82 70 7016 0031 =
Fwd: SLA packet loss base
Some people replied me about my questions. thanks for reply. However, what I want to know ultimately is something like technical proof or standard or experimentation information they can logically support SLA values in provider's IP network. For example, regarding packet loss, I found information it is based on voip service tolerance (al least below 1% packet loss). but some provider announce they can guarantee 0.3% packet loss. Where does 0.3% come from ? Can anyone give me an answer about this question ? In fact I am going to make some guideline of network quality of my network. Best regards, Chiyoung --- Original Message --- Sender : 정치영lion...@samsung.com 과장/인프라기술1팀/삼성네트웍스 Date : 2009-04-08 13:05 (GMT+09:00) Title : SLA packet loss base Hi all, I wonder where we can find the base of packet loss rate of Global famous provider. For example, the packet loss value of Sprint and NTT-Verio is same 0.3 % at their SLA. Best regards Chiyoung = Chi-Young Joung SAMSUNG NETWORKS Inc. Email: lion...@samsung.com Tel +82 70 7015 0623, Mobile +82 17 520 9193 Fax +82 70 7016 0031 =
options for full routing table in 1 year?
I was chatting with someone the other day and we were trying to build a complete list of all units which can handle full routing tables 1 year from now, assuming current 4k/month growth (nevermind de- aggregation) Juniper M/T-series units could handle 600k before, now 1mil with I- chip upgrade? Juniper MX-series units are always 1mil Cisco 6500/7600 with SUP720-3BXL handles 1mil routes Force10 E300/600/1200 with dual-cam line cards handle 512k routes Force10 E600/1200 with Exascale (quad-cam) line cards handle 1mil routes Is there anything I'm forgetting here? And if you already have one of these units, the upgrades are: Juniper M-series units can replace the FPIC card to get new I-chip? ...if I understand it, no other cards need replaced Cisco 6500/7600 you replace SUP32 or SUP720 with SUP720-3BXL ...if I understand it, no other cards need replaced? (note that this disagrees with my understanding of how their FIB/CEF works so I'm curious about this) Force10 you replace every single line card, since the entire chassis is limited to the smallest CAM size available. -- Jo Rhett Net Consonance : consonant endings by net philanthropy, open source and other randomness
Re: options for full routing table in 1 year?
Cisco 6500/7600 you replace SUP32 or SUP720 with SUP720-3BXL ...if I understand it, no other cards need replaced? (note that this disagrees with my understanding of how their FIB/CEF works so I'm curious about this) If you have linecard DFCs they would need to be XLs also. Tim:
Re: options for full routing table in 1 year?
On Wed, 8 Apr 2009, Jo Rhett wrote: Cisco 6500/7600 with SUP720-3BXL handles 1mil routes Keep in mind, on that platform, IPv4 and IPv6 routes share (rob from each other) space. 1mil IPv4 routes assumes you're not doing IPv6 at all. More realistic is some kind of split. i.e. L3 Forwarding Resources FIB TCAM usage: TotalUsed %Used 72 bits (IPv4, MPLS, EoM) 622592 281799 45% 144 bits (IP mcast, IPv6) 212992 263 1% You can tune the split...but it requires a reboot. -- Jon Lewis | I route Senior Network Engineer | therefore you are Atlantic Net| _ http://www.lewis.org/~jlewis/pgp for PGP public key_
Re: options for full routing table in 1 year?
Jo Rhett wrote: Cisco 6500/7600 with SUP720-3BXL handles 1mil routes Sounds great on paper but a sup720 can barely handle full tables today. Depending on how many full tables you take and what else you are doing with it, cpu resources are unreasonably tight. Having many vlans with vrrp and snmp polling also adds significant cpu load. Also, beware the memory consequences of 'maximum-paths' in bgp context. 8 full tables from a transit provider with maximum-paths=8 will exceed available ram on a sup720. With 6 you will have ~128m free. Fortunately this is not a common configuration. The rsp720 is substantially better at both of these issues. However the rsp720 is only supported in 76xx chassis (officially) so chassis selection is important for future upgrades. - Kevin
