- NANOG - lists.nanog.org

Re: switch speed question
by Tom Storey 25 Feb '09

25 Feb '09

> Not every bit in results in just one bit out. Broadcast, multicast, > flooding for unknown MACs (or switching failures), ... They were talking about a simple scenario where a bit that enters a port will leave a port. With 24 gigabit ports, for all intents and purposes, you will only ever have 24 gigabits at the most traversing the backplane.

4 4

Re: Yahoo and their mail filters..
by Stefan Molnar 25 Feb '09

25 Feb '09

They are accepting them by the 250 code, but never endup on the user mailbox. This was just within the last week. Fun Fun ------Original Message------ From: Micheal Patterson To: nanog(a)nanog.org Subject: Yahoo and their mail filters.. Sent: Feb 24, 2009 6:27 PM This may be old news, but I've not been in the list for quite some time. At any rate, is anyone else having issues with Yahoo blocking / deferring legitimate emails? My situation is that I host our corporate mx'ers on my network, one of the companies that we recently purchased has Yahoo hosting their domains mail. Mail traffic to them is getting temporarily deferred with the "421 4.7.0 [TS01] Messages from xxx.xxx.xxx.xxx temporarily deferred due to user complaints - 4.16.55.1; see http://postmaster.yahoo.com/421-ts01.html" The admin of the facility has contacted Yahoo about this but their response was for "more information" when they were told that traffic from my mx to their domain was to being deferred. I may end up just having them migrate to my systems just to maintain company communications if we can't clear this up in a timely manner. -- Micheal Patterson

1 0

RE: Yahoo and their mail filters..
by Carlos Alcantar 25 Feb '09

25 Feb '09

i ran into the same issue pulled my hair out for a little bit. Make sure you have domain keys / dkim and spf implemented on your mail servers and domains. Once I did that all was smooth sailing. Carlos Alcantar Race Technologies, Inc. 101 Haskins Way South San Francisco, CA 94080 P: 650.246.8900 F: 650.246.8901 E: carlos ['at'] race.com -----Original Message----- From: Joe Abley [mailto:jabley@hopcount.ca] Sent: Tuesday, February 24, 2009 6:41 PM To: Micheal Patterson Cc: nanog(a)nanog.org Subject: Re: Yahoo and their mail filters.. On 24 Feb 2009, at 21:27, Micheal Patterson wrote: > This may be old news, but I've not been in the list for quite some > time. At any rate, is anyone else having issues with Yahoo > blocking / deferring legitimate emails? Yes. Everybody else. Joe

1 0

Routing issue to Lunarpages/California Regional Internet
by Clinton Popovich 24 Feb '09

24 Feb '09

Does anyone have a contact for either of these two companies, we are seeing some routing issues somewhere on their network and would like to contact their network engineers. I have tired all contacts listed on their whois as well as their general support phone number to no avail. 67.210.117.26 = Lunar Pages 74.50.25.3 = Lunar Pages 74.50.26.3 = Lunar Pages 67.210.126.125 = Lunar Pages 216.75.16.199 = California Regional Intranet, Inc. 216.75.16.207 = California Regional Intranet, Inc. 66.240.211.13 = California Regional Intranet, Inc. Lunar Pages RTechHandle: LNTS1-ARIN <https://ws.arin.net/whois/?queryinput=P%20!%20LNTS1-ARIN> RTechName: Lunarpages NOC Technical Support RTechPhone: +1-877-586-2772 RTechEmail: hostmaster(a)lunarpages.com California Regional Intranet, Inc. RTechHandle: IC63-ARIN <https://ws.arin.net/whois/?queryinput=P%20!%20IC63-ARIN> RTechName: System Administration RTechPhone: +1-858-974-5080 RTechEmail: sysadmin(a)cari.net Clinton Popovich Systems Engineer Consolidated Communications Gibsonia Pa, 15044 Clint.popovich(a)consolidated.com

2 1

Re: switch speed question
by deleskie＠gmail.com 24 Feb '09

24 Feb '09

Switches like this and the force10 2410 and the like are cut through so do sub micro second versus a 'regular' store and forward switch ------Original Message------ From: Holmes,David A To: Deric Kwok To: nanog(a)nanog.org Subject: RE: switch speed question Sent: Feb 24, 2009 1:03 PM Arista claims to have the fastest 1/10 Gig 24 and 48 port 1RU switch, with a backplane capacity guaranteeing 10 Gig full duplex line rate per port. Cisco's CEF is local only and functions to download the arp cache and routing table into ASICs for hardware switching; but look at Cisco's NSF/SSO for cases where adjacent devices are all defined in the same packet forwarding state machine. -----Original Message----- From: Deric Kwok [mailto:deric.kwok2000@gmail.com] Sent: Monday, February 23, 2009 5:08 PM To: nanog(a)nanog.org Subject: switch speed question Hi Can you share your experience what is fastest Gig switch? I see there is CEF feature in cisco. ls it big different when i enable it in switch vs other switch? ls there any problem? Thank you Sent from my BlackBerry device on the Rogers Wireless Network

1 0

[NANOG-announce] NANOG 46 Call for Presentations
by Todd Underwood 24 Feb '09

24 Feb '09

NANOG 46 Call for Presentations ============================== The North American Network Operators' Group (NANOG) will hold its 46th meeting June 14-17, 2009 in Philadelphia, Pennsylvania. NANOG 46 will be hosted by Comcast. The NANOG Program Committee is now seeking proposals for Presentations, Panels, Tutorials, and Birds of a Feather sessions (BOFs) for the NANOG46 program. We invite presentations highlighting issues relating to technology already deployed or soon-to-be deployed in the Internet. Vendors are encouraged to work with operators to present real-world deployment experiences with the vendor's products and interoperability. NANOG 46 submissions are welcome at http://pc.nanog.org. Conditional acceptance notifications for NANOG 46 will be sent by 19 May 2009. Detail of the submission process, as well as NANOG 46 dates of interest are described below. About NANOG =========== NANOG is the premiere meeting for network operators in North America, and provides a forum for information exchange among network operators, engineers, and researchers. NANOG meets three times each year, and include panels, presentations, tutorial sessions, and BOFs. NANOG attendees include operators from networks of all sizes, enterprise operators, peering coordinators, transport and switching equipment vendors, and network researchers. NANOG attendees will share ideas and interact with leaders in the field of network operations, discuss current operational events and issues, and learn about state of the art operational techniques. Materials from NANOG46 will be archived on http://www.nanog.org/meetings/nanog46. Key Dates for NANOG46 ===================== Call for Presentations Opens: 02 March 2009 Please use http://pc.nanog.org Deadline for Speaker Submissions: 27 March 2009 Final Slides: 06 April 2009 Final Program Published: 17 April 2009 Lightning talk submissions open: 15 May 2009 Technical Conference ==================== The NANOG Program Committee seeks proposals for presentations, panels, tutorial sessions, and BOFs in all areas of network operations, including (but not limited to): - Power and facilities Topics may include power reliability and engineering, green power, power efficiency, cooling, and facilities management. - Interconnections Topics may include IXes, intra-building, MMR, metro-wide connections, peering, and transit purchasing tactics and strategies. - Security Topics may include routing security, route filtering of large peers/customers, and inter-as security and cooperation. - DNS Topics may include using DNS data for network metrics, botnet discovery, and geolocation. - IPv6 Topics may include real-world deployment challenges, Carrier Grade NAT, NAT-PT implementations that work and scale, and allocation strategies. - Content Topics may include Distribution (p2p, IPTV), content payment models, content distribution technologies and networks, and storage/archiving. - Disaster recovery Topics may include Risk analysis, training, agencies, planning methods, hardware portability, key tools, transport audits, and other lessons learned. In general, presentations are being sought by and for network operators of all sizes. Presentations about difficult problems (and interesting solutions) that you encounter in the course of your job are encouraged. If you think you have an interesting topic but want some feedback or assistance working it into a presentation, please email the Program Committee chair (chair(a)pc.nanog.org) and a representative on the Program Committee will give you the feedback needed to work it into a presentation. Talks ===== Plenary Session --------------- A plenary session talk should be on a topic of interest to the general NANOG audience, and may be up to 30 minutes long (including time for questions and answers.) Tracks ------ Tracks are 90-minute informal agenda blocks on topics which are of interest to a portion of the NANOG community. The 90-minute block can be subdivided into any number of combinations to suit the theme. A moderator generally coordinates content within the 90-minute block of time. A typical track session includes some presentations, but usually is focused on community discussion and interaction. Frequent track topics include: - Peering - ISP Security - Tools A track session is 90 minutes. Typically two tracks or three tracks will be run concurrently. Panels ------ Panel selection will be based on the importance, originality, focus and timeliness of the topic; expertise of proposed panelists; as well as the potential for informative and controversial discussion. The panel leader should provide an abstract describing the panel theme, list of panelists, and an outline of how the panel will be organized. After acceptance, the panel leader will be given the option to invite panel authors to submit their presentations to the NANOG Program Committee for review. Until then authors should not submit their individual presentations for the panel. A panel may be up to 90 minutes long. Lightning Talks --------------- A lightning talk is a very short presentation or speech by any attendee on any topic relevant to the NANOG audience. These are limited to ten minutes; this will be strictly enforced. If you have a topic that's timely, interesting, or even a crackpot idea you want to share, we encourage you to consider presenting it. Signups for lightning talks will be accepted during the NANOG meeting. Research Forum -------------- Researchers are invited to present short (10-minute) summaries of their work for operator feedback. Topics include routing, network performance, statistical measurement and analysis, and protocol development and implementation. Studies presented may be works in progress. Researchers from academia, government, and industry are encouraged to present. Tutorials --------- Proposals are also invited for tutorial sessions from the introductory through advanced level on all related topics, including: - Disaster Recovery Planning - Troubleshooting BGP - Best Practices for Determining Traffic Matrices - Options for Blackhole and Discard Routing - BGP/MPLS Layer 3 VPNs - Peering business and engineering basics BOFs ---- BOFs (Birds of a Feather sessions) are informal sessions on topics which are of interest to a portion of the NANOG community. BOFs may be held in the hallways, break-out areas or in an unscheduled tutorial room by request submitted to nanogpc(a)nanog.org at least 30 minutes in advance of desired use with estimated duration notes. A typical BOF session may include some structure or presentations, but usually is focused on community discussion and interaction. Frequent BOF topics include: - R&D collaboration - Hot-topics in the media - Peering - ISP Security - Tools The less structured nature of BOF sessions allows for the greatest flexibility from a timing perspective. Registration Fee Waivers ========================= The meeting registration fee will be waived as follows: - General session talk: one speaker - General session panel: one moderator and all panelists - Research forum talk: one speaker - Track: one moderator - Tutorial: one instructor How to Present ============== The deadline for accepting abstracts and slides is 06 March 2009. While the majority of speaking slots may be filled by that date, a limited number of slots may be available after that date for topics that are exceptionally timely, important, or critical to the operations of the Internet. The primary speaker, moderator, or author should submit presentation information and an abstract on-line at: http://pc.nanog.org Once you have done this, you will receive instructions for submitting your draft slides. See Presentation Guidelines for complete submission guidelines. All submissions must include: - Author's name(s) - Preferred contact email address - Submission category (General Session, Panel, Tutorial, Research Forum, or BOF) - Presentation title - Abstract - Slides (attachment or URL), in PDF (preferred) or Powerpoint format (Slides are optional for BOFs.) You may instead submit the presentation information and draft slides in email to nanog-support(a)nanog.org. We look forward to reviewing your submission. Todd Underwood, Chair NANOG Program Committee _______________________________________________ NANOG-announce mailing list NANOG-announce(a)nanog.org http://mailman.nanog.org/mailman/listinfo/nanog-announce

1 0

ISIS route summarization
by Jack Bates 24 Feb '09

24 Feb '09

In a level2 only ISIS network (not using multiple areas due to MPLS limitations), is there a better method for handling aggregate routes than creating an aggregate and redistributing it into ISIS for each router? Primarily Cisco/Juniper based. Cisco I believe has an aggregate option in ISIS (similar to OSPF) and Juniper has a separate aggregate function which can be distributed into ISIS. Neither can do summarization per say unless they cross between levels; unless I'm mistaken. Offlist input is fine. Just trying to double check my brain while setting up IPv6 on the access edges. Link state does have it's limitations. ;) -Jack

6 8

switch speed question
by Deric Kwok 24 Feb '09

24 Feb '09

Hi Can you share your experience what is fastest Gig switch? I see there is CEF feature in cisco. ls it big different when i enable it in switch vs other switch? ls there any problem? Thank you

8 7

Gmail down?
by Hank Nussbacher 24 Feb '09

24 Feb '09

-Hank

11 10

Re: Charter.net email routing issues
by John Martinez 24 Feb '09

24 Feb '09

Yup, I knew that, sorry. Ryan Rawdon wrote: > You may want to try the mailop mailing list, which was created to try > and shift mail operations traffic volume from NANOG: http://www.mailop.org/ > > Good luck with your issue, > Ryan > > John Martinez wrote: >> Is anyone else seeing a high rejection rate from charter.net email >> clients? >> >> >> >

4 4