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Cisco GRE/IPSec performance, 3845 ISR/3945 ISR G2
by Christopher J. Pilkington 19 Nov '10

19 Nov '10

We're running GRE/IPSec transport over a point-to-point DS3. We're also doing some QoS. The traffic mix is voice; our average packet size can be as low as 250 bytes at times. We are seeing incredibly high CPU when the traffic levels approach 30Mb/s and around 11kpps in each direction, at times over 95%. We've seen packet loss as well in the priority queue. We recently forklifted the routers on a point-to-point DS3 from 3845s to 3945s, thinking we'd see an improvement in performance. We saw no such improvement, and some on our team argue it's worse. I'm assuming here that the packet rate coupled with the QoS and GRE is just killing the router's CPU. That said, are there any optimizations that we could consider before ripping this thing out completely? Yes, cef is enabled. I'm considering changing from GRE/IPSec to VTI, but I suspect this will still have the same actual switching behavior through the router, and may not change anything. One other possibility was to run IPSec tunnel mode and just exclude EIGRP from the tunnel, but that may be risky (IPSec fails == black hole). Our fall back plan is swap out the DS3 with an ethernet and get a L2 ethernet encryptor, but that can't happen until 2011-01-01. Any suggestions, wisdom? Thanks, -cjp

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Re: IPv6
by Nick Olsen 19 Nov '10

19 Nov '10

That's what I'm hearing. Cogent refuses to peer with HE via IPv6. So cogent IPv6 Customers currently can not hit things at HE. And they can't do anything about it. Besides 6to4 tunneling and BGP peering with HE (or native, If they can). Nick Olsen Network Operations (855) FLSPEED x106 ---------------------------------------- From: "Mike Tancsa" <mike(a)sentex.net> Sent: Thursday, November 18, 2010 5:45 PM To: "Lee Riemer" <lriemer(a)bestline.net> Subject: Re: IPv6 On 11/18/2010 5:14 PM, Lee Riemer wrote: > Try tracerouting to 2001:500:4:13::81 (www.arin.net) or > 2001:470:0:76::2 (www.he.net) via Cogent. > Interesting. I noticed a similar issue with ipv6.cnn.com today. I dont see it via TATA, but see it via Cogent. So whats the story behind it and ARIN not being seen through cogent ? Is it due to no v6 relation bewtween he.net and Cogent ? 2620:0:2200:8:8888:8888:8888:8901 (whats with the crazy 8s?) see http://lg.as6453.net/lg/ Router: gin-mtt-mcore3 Site: CA, Montreal - MTT, TATA COMM. INT. CENTER Command: traceroute ipv6 2620:0:2200:8:8888:8888:8888:8901 Tracing the route to 2620:0:2200:8:8888:8888:8888:8901 1 * * * 2 * * * 3 * * * 4 * * * ---Mike

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Why is your company treating IPv6 turn ups as a sales matter?
by William Herrin 19 Nov '10

19 Nov '10

Hiya folks, Why are your respective companies treating IPv6 turn ups as a sales matter instead of a standard technical change request like IP addresses or BGP? Sprint and Qwest, I know you're guilty. How many of the rest of you are making IPv6 installation harder for your customers than it needs to be? Regards, Bill Herrin -- William D. Herrin ................ herrin(a)dirtside.com bill(a)herrin.us 3005 Crane Dr. ...................... Web: <http://bill.herrin.us/> Falls Church, VA 22042-3004

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Re: IPv6
by Nick Olsen 19 Nov '10

19 Nov '10

TW Telecom, Not Time Warner Cable. And TW Telecom already told me it was a simple change order with a NRC of 25.00 Haven't talked to cogent about it yet. Nick Olsen Network Operations (855) FLSPEED x106 ---------------------------------------- From: "Jon Auer" <jda(a)tapodi.net> Sent: Thursday, November 18, 2010 5:19 PM To: nanog(a)nanog.org Subject: Re: IPv6 Technically it was a non-event. Layer 8 wise, they refused to turn up IPv6 without a renewal or new order. Time Warner Cable is demanding a new order and additional costs to support V6. On Thu, Nov 18, 2010 at 3:39 PM, Nick Olsen <nick(a)flhsi.com> wrote: > Curious as to who is running IPv6 with TW Telecom or Cogent. > I'm wanting to turn up native IPv6 with them, And wanted to hear > thoughts/experiences. > I assume it should be a "non-event". We've already got a prefix from arin > that we are going to announce. > > Nick Olsen > Network Operations > (855) FLSPEED x106 > > > >

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Re: IPv6
by Nick Olsen 18 Nov '10

18 Nov '10

Ah, I'm always quick to jump to the TWT !=TWC point. As many people I talk to get that wrong. But yes, Great data point. Seems like most of the bigger upstreams support IPv6. Nick Olsen Network Operations (855) FLSPEED x106 ---------------------------------------- From: "Jon Auer" <jda(a)tapodi.net> Sent: Thursday, November 18, 2010 5:36 PM To: nanog(a)nanog.org Subject: Re: IPv6 Good to know about TWT, and yes, I know that TWT != TWC... Figured it was a good datapoint considering the concurrent discussion of providers charging for v6... On Thu, Nov 18, 2010 at 4:24 PM, Nick Olsen <nick(a)flhsi.com> wrote: > > TW Telecom, Not Time Warner Cable. And TW Telecom already told me it was a simple change order with a NRC of 25.00 > Haven't talked to cogent about it yet. > > Nick Olsen > Network Operations > (855) FLSPEED x106 > > > > ________________________________ > From: "Jon Auer" <jda(a)tapodi.net> > Sent: Thursday, November 18, 2010 5:19 PM > To: nanog(a)nanog.org > Subject: Re: IPv6 > > Technically it was a non-event. > Layer 8 wise, they refused to turn up IPv6 without a renewal or new order. > > Time Warner Cable is demanding a new order and additional costs to support V6. > > On Thu, Nov 18, 2010 at 3:39 PM, Nick Olsen <nick(a)flhsi.com> wrote: > > Curious as to who is running IPv6 with TW Telecom or Cogent. > > I'm wanting to turn up native IPv6 with them, And wanted to hear > > thoughts/experiences. > > I assume it should be a "non-event". We've already got a prefix from arin > > that we are going to announce. > > > > Nick Olsen > > Network Operations > > (855) FLSPEED x106 > > > > > > > > >

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Prefix 120.29.240.0/21
by Fredy Kuenzler 18 Nov '10

18 Nov '10

We see a number of session towards downstreams flaps obviously caused by prefix 120.29.240.0/21, originated by AS45158, transited by AS4739 (see below). Best regards, Fredy Kuenzler Init7 / AS13030 #sh ip bgp 120.29.240.0 Number of BGP Routes matching display condition : 4 Status codes: s suppressed, d damped, h history, * valid, > best, i internal Origin codes: i - IGP, e - EGP, ? - incomplete Network Next Hop MED LocPrf Weight Path *>i 120.29.240.0/21 206.223.143.99 21 150 0 4739 45158 {64512 64514 64516 64519 64521 64522 64525 64526 64528 64529 64530 64535 64537 64538 64541 64542 64543 64544 64545 64546 64547 64548 64549 64552 64553 64556 64557 64560 64561 64562 64564 64565 64566 64568 64569 64570 64574 64575 64576 64577 64578 64580 64582 64583 64584 64588 64593 64598 64599 64601 64602 64605 64610 64611 64620 64621 65397 65398 65470 65471 65472 65473 65474 65479 65480 65484 65485 65490 65502 65505 65511 65514 65523 65524 65528 65534 65609} ? *i 120.29.240.0/21 206.223.143.99 21 150 0 4739 45158 {64512 64514 64516 64519 64521 64522 64525 64526 64528 64529 64530 64535 64537 64538 64541 64542 64543 64544 64545 64546 64547 64548 64549 64552 64553 64556 64557 64560 64561 64562 64564 64565 64566 64568 64569 64570 64574 64575 64576 64577 64578 64580 64582 64583 64584 64588 64593 64598 64599 64601 64602 64605 64610 64611 64620 64621 65397 65398 65470 65471 65472 65473 65474 65479 65480 65484 65485 65490 65502 65505 65511 65514 65523 65524 65528 65534 65609} ? *i 120.29.240.0/21 206.223.143.99 21 150 0 4739 45158 {64512 64514 64516 64519 64521 64522 64525 64526 64528 64529 64530 64535 64537 64538 64541 64542 64543 64544 64545 64546 64547 64548 64549 64552 64553 64556 64557 64560 64561 64562 64564 64565 64566 64568 64569 64570 64574 64575 64576 64577 64578 64580 64582 64583 64584 64588 64593 64598 64599 64601 64602 64605 64610 64611 64620 64621 65397 65398 65470 65471 65472 65473 65474 65479 65480 65484 65485 65490 65502 65505 65511 65514 65523 65524 65528 65534 65609} ? * 120.29.240.0/21 77.67.76.237 1546 150 0 3257 7473 7474 9300 45158 i Last update to IP routing table: 0h25m47s, 1 path(s) installed: Route is advertised to 1 peers: 213.144.128.180(13030)

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Cisco 6500 QoS Priority Queuing (DSCP & EXP based)
by Manu Chao 18 Nov '10

18 Nov '10

I would to translate following 7200 QoS configuration to Catalyst 6500: class-map match-any PQ match dscp ef match mpls experimental topmost 5 policy-map QOS-PE-OUT class PQ priority percent 33 class class-default AFAIK we need extra command on 6500 to enable Priority Queuing at the interface level but my problem is that interface priority command are only COS based not DSCP nor EXP. I may be wrong. I would appreciate any 6500 QoS help. Thanks in advance

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CFP: COMSNETS 2011 (Call for Participation)
by Ramana Kompella 18 Nov '10

18 Nov '10

COMSNETS 2011 The THIRD International Conference on COMmunication Systems and NETworks January 4-8, 2011, Bangalore, India http://www.comsnets.org Email: comsnets2011(a)ece.iisc.ernet.in (In Co-operation with ACM SIGMOBILE) (Technically Co-Sponsored by IEEE COMSOC) The Third International Conference on COMmunication Systems and NETworkS (COMSNETS) will be held in Bangalore, India, from 4 January 2011 to 8 January 2011. COMSNETS is a premier international conference dedicated to addressing advances in Networking and Communications Systems, and Telecommunications services. The goal of the conference is to create a world-class gathering of researchers from academia and industry, practitioners, business leaders, intellectual property experts, and venture capitalists, providing a forum for discussing cutting edge research, and directions for new innovative business and technology. The conference will include a highly selective technical program consisting of parallel tracks of submitted papers, a small set of invited papers on important and timely topics from well-known leaders in the field, and poster sessions of work in progress. Focused workshops and panel discussions will be held on emerging topics to allow for a lively exchange of ideas. International business and government leaders will be invited to share their perspectives, thus complementing the technical program. Registration site: http://www.comsnets.org/registration.html. Heavy student discounts available. We look forward to your participation. Conference Scope ---------------- Internet Architecture and Protocols Network-based Applications Video Distribution (IPTV, Mobile Video, Video on Demand) Network Operations and Management Broadband and Cellular Networks (3G/4G, WiMAX/LTE) Mesh, Sensor and PAN Networks Communication Software (Cognitive Radios, DSA, SDR) Wireless Operating Systems and Mobile Platforms Peer-to-peer Networking Cognitive Radio and White Space Networking Optical Networks Network Security & Cyber Security Technologies Cloud and Utility computing Storage Area Networks Next Generation Web Architectures Vehicular Networking Energy-Efficient Networking Network Science and Emergent Behavior in Socio-Technical Networks Social Networking Analysis, Middleware and Applications Networking Technologies for Smart Energy Grids Disruption/Delay Tolerant Networking Conference Highlights --------------------- Conference Inaugural Speaker: Prof. Raj Jain, Washington U. , St. Louis, USA Banquet speakers: Dr. Rajeev Rastogi, Yahoo Research, India Mr. Venkat Rajendran, Billonways Holdings Pvt. Ltd, India Keynote Speakers: Prof. Don Towsley, U. Mass Amherst, USA Dr. Partho Mishra, Cisco, India Mr. Subu Goparaju, Infosys, India Dr. Pravin Bhagwat, AirTight Networks, India Dr. Jean Bolot, Sprint, USA Mr. Michael Eisler, NetApp Inc, USA Workshops: WISARD (4, 5 Jan) NetHealth (4 Jan) IAMCOM (5 Jan) Mobile India 2011 (7 Jan) Technical Paper and Poster Sessions Ph.D Forum Panel Discussions Demos & Exhibits General Co-Chairs ----------------- David B. Johnson, Rice University, USA Anurag Kumar, IISc Bangalore, India Technical Program Co-Chairs --------------------------- Jon Crowcroft, U. of Cambridge, UK D. Manjunath, IIT Bombay, India Archan Misra, Telcordia Tech., USA Steering Committee Co-Chairs ---------------------------- Uday Desai, IIT Hyderabad, India Giridhar Mandyam, Qualcomm, USA Sanjoy Paul, Infosys, India Rajeev Shorey, NIIT University, India G. Venkatesh, SASKEN, India Panel Co-Chairs --------------- Aditya Akella, U. of Wisconsin, USA Venkat Padmanabhan, MSR, India Ph.D Forum Chair ---------------- Bhaskaran Raman, IIT Bombay, India Publications Chair ------------------ Varsha Apte, IIT Bombay, India Demos and Exhibits Co-Chairs ---------------------------- Aaditeshwar Seth, IIT Delhi, India Ajay Bakre, Netapps, India Sponsorship Chair ----------------- Sudipta Maitra, Delhi, india Workshop Chairs --------------- Sharad Jaiswal, Alcatel-Lucent, India Ravindran Kaliappa, CUNY, USA Neelesh Mehta, IISc Bangalore, India Mobile India 2011 Co-Chairs --------------------------- Gene Landy, Ruperto-Israel & Weiner, USA Rajaraghavan Setlur, SASKEN, India Sridhar Varadharajan, SASKEN, India Publicity Co-Chair ------------------ Augustin Chaintreau, TTL, France Kameswari Chebrolu, IIT Bombay, India Song Chong, KAIST, Korea Ramana Kompella, Purdue Univ, USA Nishanth Sastry, U. of Cambridge, UK Web Co-Chairs ------------- Santhana Krishnan, IIT Bombay, India Vinay Veerappa, SASKEN, India International Advisory Committee -------------------------------- K. K. Ramakrishnan, AT&T, USA Victor Bahl, Microsoft Research, USA Sunghyun Choi, Seoul National U., Korea Sajal Das, U. Texas at Arlington, USA B. N. Jain, IIT Delhi, India P. R. Kumar, UIUC, USA Anurag Kumar, IISc, Bangalore, India L. M. Patnaik, IISc, Bangalore, India Krithi Ramamritham, IIT Bombay, India Parmesh Ramanathan, U. Wisconsin, USA Krishan Sabnani, Alcatel-Lucent, USA Kang Shin, U. Michigan, USA Nitin Vaidya, U. Illinois, USA University Partners: -------------------- IIT Bombay, IIT Delhi, IISc Bangalore, IIT Hyderabad, NIIT University, BITS Pilani Patrons: -------- CISCO, Infosys, Alcatel Lucent, Intel, Microsoft Research, IBM Research, Sasken, Datacipher, Mobile Monday Bangalore

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GBLX Routing Issues
by Tim Donahue 18 Nov '10

18 Nov '10

We have several clients who are experiencing downtime right now on GBLX's network, as well as seeing some intermittent routing problems coming from our GBLX link. Has anyone been able to get more than the standard "The technicians are trying to isolate the problem" out of GBLX at this point? On or off-list replies are welcome. Thank you, Tim

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CFP: COMSNETS 2011 (Deadline in 4 days: Sept 27, 11:59pm PDT)
by Ramana Kompella 18 Nov '10

18 Nov '10

COMSNETS 2011 The THIRD International Conference on COMmunication Systems and NETworks January 4-8, 2011, Bangalore, India http://www.comsnets.org Email: comsnets2011(a)ece.iisc.ernet.in (In Co-operation with ACM SIGMOBILE) (Technically Co-Sponsored by IEEE COMSOC) The Third International Conference on COMmunication Systems and NETworkS (COMSNETS) will be held in Bangalore, India, from 4 January 2011 to 8 January 2011. COMSNETS is a premier international conference dedicated to addressing advances in Networking and Communications Systems, and Telecommunications services. The goal of the conference is to create a world-class gathering of researchers from academia and industry, practitioners, business leaders, intellectual property experts, and venture capitalists, providing a forum for discussing cutting edge research, and directions for new innovative business and technology. The conference will include a highly selective technical program consisting of parallel tracks of submitted papers, a small set of invited papers on important and timely topics from well-known leaders in the field, and poster sessions of work in progress. Focused workshops and panel discussions will be held on emerging topics to allow for a lively exchange of ideas. International business and government leaders will be invited to share their perspectives, thus complementing the technical program. Registration site: http://www.comsnets.org/registration.html. Heavy student discounts available. We look forward to your participation. Conference Scope ---------------- Internet Architecture and Protocols Network-based Applications Video Distribution (IPTV, Mobile Video, Video on Demand) Network Operations and Management Broadband and Cellular Networks (3G/4G, WiMAX/LTE) Mesh, Sensor and PAN Networks Communication Software (Cognitive Radios, DSA, SDR) Wireless Operating Systems and Mobile Platforms Peer-to-peer Networking Cognitive Radio and White Space Networking Optical Networks Network Security & Cyber Security Technologies Cloud and Utility computing Storage Area Networks Next Generation Web Architectures Vehicular Networking Energy-Efficient Networking Network Science and Emergent Behavior in Socio-Technical Networks Social Networking Analysis, Middleware and Applications Networking Technologies for Smart Energy Grids Disruption/Delay Tolerant Networking Conference Highlights --------------------- Conference Inaugural Speaker: Prof. Raj Jain, Washington U. , St. Louis, USA Banquet speakers: Dr. Rajeev Rastogi, Yahoo Research, India Mr. Venkat Rajendran, Billonways Holdings Pvt. Ltd, India Keynote Speakers: Prof. Don Towsley, U. Mass Amherst, USA Dr. Partho Mishra, Cisco, India Mr. Subu Goparaju, Infosys, India Dr. Pravin Bhagwat, AirTight Networks, India Dr. Jean Bolot, Sprint, USA Mr. Michael Eisler, NetApp Inc, USA Workshops: WISARD (4, 5 Jan) NetHealth (4 Jan) IAMCOM (5 Jan) Mobile India 2011 (7 Jan) Technical Paper and Poster Sessions Ph.D Forum Panel Discussions Demos & Exhibits General Co-Chairs ----------------- David B. Johnson, Rice University, USA Anurag Kumar, IISc Bangalore, India Technical Program Co-Chairs --------------------------- Jon Crowcroft, U. of Cambridge, UK D. Manjunath, IIT Bombay, India Archan Misra, Telcordia Tech., USA Steering Committee Co-Chairs ---------------------------- Uday Desai, IIT Hyderabad, India Giridhar Mandyam, Qualcomm, USA Sanjoy Paul, Infosys, India Rajeev Shorey, NIIT University, India G. Venkatesh, SASKEN, India Panel Co-Chairs --------------- Aditya Akella, U. of Wisconsin, USA Venkat Padmanabhan, MSR, India Ph.D Forum Chair ---------------- Bhaskaran Raman, IIT Bombay, India Publications Chair ------------------ Varsha Apte, IIT Bombay, India Demos and Exhibits Co-Chairs ---------------------------- Aaditeshwar Seth, IIT Delhi, India Ajay Bakre, Netapps, India Sponsorship Chair ----------------- Sudipta Maitra, Delhi, india Workshop Chairs --------------- Sharad Jaiswal, Alcatel-Lucent, India Ravindran Kaliappa, CUNY, USA Neelesh Mehta, IISc Bangalore, India Mobile India 2011 Co-Chairs --------------------------- Gene Landy, Ruperto-Israel & Weiner, USA Rajaraghavan Setlur, SASKEN, India Sridhar Varadharajan, SASKEN, India Publicity Co-Chair ------------------ Augustin Chaintreau, TTL, France Kameswari Chebrolu, IIT Bombay, India Song Chong, KAIST, Korea Ramana Kompella, Purdue Univ, USA Nishanth Sastry, U. of Cambridge, UK Web Co-Chairs ------------- Santhana Krishnan, IIT Bombay, India Vinay Veerappa, SASKEN, India International Advisory Committee -------------------------------- K. K. Ramakrishnan, AT&T, USA Victor Bahl, Microsoft Research, USA Sunghyun Choi, Seoul National U., Korea Sajal Das, U. Texas at Arlington, USA B. N. Jain, IIT Delhi, India P. R. Kumar, UIUC, USA Anurag Kumar, IISc, Bangalore, India L. M. Patnaik, IISc, Bangalore, India Krithi Ramamritham, IIT Bombay, India Parmesh Ramanathan, U. Wisconsin, USA Krishan Sabnani, Alcatel-Lucent, USA Kang Shin, U. Michigan, USA Nitin Vaidya, U. Illinois, USA University Partners: -------------------- IIT Bombay, IIT Delhi, IISc Bangalore, IIT Hyderabad, NIIT University, BITS Pilani Patrons: -------- CISCO, Infosys, Alcatel Lucent, Intel, Microsoft Research, IBM Research, Sasken, Datacipher, Mobile Monday Bangalore

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