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Re: Entry level WDM gear?
by Mauricio Rodriguez 09 May '13

09 May '13

Jeff, Take a look at ECI -- http://www.ecitele.com, or BTI -- http://www.btisystems.com/home.aspx. They have both passive and active systems, depending on your needs. Regards, *Mauricio R Rodriguez* *Senior Systems Engineer *CLAdirect (http://www.cladirect.com)

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Per Site QOS policy with Cisco IOS-XE
by Wes Tribble 09 May '13

09 May '13

I have a question for the QOS gurus out there. We are having some problems with packet loss for our smaller MPLS locations. This packet loss is due to the large speed differential on our Hub site(150mb/s) in comparison the the branch office locations(single T-1 to 4.5mb/s multilinks). This packet loss only seems to impact really bursty applications like our Web Proxy. I have been around and around with WindStream to give me some extra buffer or enable random early detection on the smaller interfaces in my MPLS network. So far they are unwilling to do a custom policy and none of their standard policies have enough buffer to handle the bursts. They do FIFO tail drop in every queue, so I can’t even choose a policy that has WRED implemented. I am looking for a way to solve the problem on my side. I can create a shaper for the proxy and match off an access-list to the smaller sites, but I am either forced to do bandwidth reservations for each site, or have multiple sites share the same shaper. Here is an example of what I was playing around with: ip access-list extended ProxyT1Sites permit tcp any host 10.x.x.x 10.x.x.x 0.0.0.255 permit tcp any host 10.x.x.x 10.x.x.x 0.0.0.255 class-map match-any ProxyShaperT1 match access-group name ProxyT1Sites policy-map WindStream class VOICE priority percent 25 set dscp ef class AF41 bandwidth percent 40 set dscp af41 queue-limit 1024 packets class ProxyShaperT1 shape average 1536 bandwidth percent 1 set dscp af21 queue-limit 1024 packets class class-default fair-queue set dscp af21 queue-limit 1024 packets Another Idea I had was to create a bunch of shaper classes all feeding the same child policy for priority queuing and bandwidth reservations based on DSCP markings. I’m just not exactly sure that this is allowed or supported. I also would run out of bandwidth allocation on the policy if I use the true bandwidth number of 150mb/s. It is on a Gig port so I could just take the bandwidth statement off of the interface to give myself enough room for all of the shaper allocations. Something like this(I am omitting the access-list that matches the branch subnet and class map for brevity): policy-map PerSiteShaper class FtSmith shape average 1536 bandwidth 1536 service policy Scheduler class Dallas shape average 4500 bandwidth 4500 service policy Scheduler class NYC shape average 100000 bandwidth 100000 service policy Scheduler class-default service-policy Scheduler policy-map Scheduler class VOICE priority percent 25 set dscp ef class AF41 bandwidth percent 40 set dscp af41 queue-limit 1024 packets class class-default fair-queue set dscp af21 queue-limit 1024 packets Just looking for some ideas that do not involve building tunnels to our remote offices. Thanks in advance, *Wes Tribble*

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Problem watch video Youtube in Brazil
by Welisson 09 May '13

09 May '13

Hello, Dears, I'd like know if someone is having any kind problem with watch movies on Youtube, because the access of in Brazil is a lot bad, between 4h and 10(p.m utc -3)? Best Regards Welisson Tomé

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Data Center Installations
by Warren Bailey 09 May '13

09 May '13

Do any of you have a "go to" resource for materials used in installations? Tie wraps, cable management, blahblahblah? I have found several places, but I'm curious to know what the nanog ninja's have to say. //warren

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Feedly and Facebook having issues?
by Hank Nussbacher 08 May '13

08 May '13

http://www.isitdownrightnow.com/facebook.com.html http://www.isitdownrightnow.com/feedly.com.html -Hank

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Traffic shaping going on?
by Ray Wong 08 May '13

08 May '13

Doesn't seem directly correlated with outages, and everything seems to be working ok, but I'm seeing about a 20-30% shift in flows from AS7792 to AS3356. Seems unlikely that many ISPs have suddenly turned up a level3 link on the same day/hour, and performance metrics all seem normal. I confess I've had to turn my attention away from network issues to systems/DB/security ones lately, so I may have missed something. Anyone else seeing fairly significant next hop shifts over the previous 24 hours? All of yesterdays major outages I was sort of suspecting seem to have been resolved without correlating shifts back. -R>

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Historical Info
by Mike Hyde 08 May '13

08 May '13

Is there a way to get the past owners on IP blocks and AS numbers?

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NANOG58 bad helo for hotel reservation emails
by Robert Drake 08 May '13

08 May '13

Sorry for the noise, but I thought this might be of interest to anyone waiting for their hotel confirmation: NOQUEUE: reject: RCPT from feport01.hiltonhhonors.net[63.122.201.171]: 450 4.7.1 <ironport.hhonorscrm.net>: Helo command rejected: Host not found; from=<waldorfastoriahotels&resorts(a)res.hilton.com> to=<excised> proto=ESMTP helo=<ironport.hhonorscrm.net> So if you run your own server and/or are capable of compensating for a misconfigured MTA, you should add an exception for feport01.hiltonhhonors.net.

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CenturyLink Outage?
by Jason Lester 07 May '13

07 May '13

Does anyone know what is going on with the nationwide CenturyLink outage? Their NOC recording says it is a BGP routing issue with their upstream peers affecting Internet traffic and traffic between regions. Our outside connectivity with them has basically been down since about 4:00AM (EDT) this morning. The prefixes we were receiving from them were fluctuating between a few hundred and a few thousand all morning. We are getting the full BGP table from them now (for about the last hour), but still not seeing any incoming traffic. Seems like a major issue since it has been almost 9 hours now. Thanks, Jason -- Jason Lester Administrator for Instructional Technology Washington County Public Schools Tel: 276-739-3060 Fax: 276-628-1893 http://www.wcs.k12.va.us

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McAfee Update failing for newly allocated IP block
by Dan White 06 May '13

06 May '13

http://update.nai.com/Products/CommonUpdater is returning an html generated error (Unable to forward this request at this time), when connecting via a recently allocated IP block. If someone from McAfee is monitoring this list, please contact me off-list. Thank You, -- Dan White BTC Broadband Network Admin Lead Ph 918.366.0248 (direct) main: (918)366-8000 Fax 918.366.6610 email: dwhite(a)olp.net http://www.btcbroadband.com

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