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Comcast outage Southwest Washington?
by Aaron C. de Bruyn 19 Jul '18

19 Jul '18

There a Comcast outage affecting a few of my locations in SW Washington state. We initially had an estimate of 3:26 PM for service restoration. That got bumped to 7 PM. Now the phone system isn't giving an ETR and the phone system says there are excessive hold times. I'm guessing it's a fiber cut. Can anyone provide some insight? Thanks, -A

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Blizzard, Battle.net connectivity issues
by Michael Crapse 18 Jul '18

18 Jul '18

Could I get an off list reply from blizzard engineers. Your email system is blocking our emails as spam, and I'm trying to resolve some geolocation issues that disallow our mutual customers to access your services. Thank you Michael Crapse Wi-Fiber, Inc.

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Re: Proving Gig Speed
by Scott Weeks 17 Jul '18

17 Jul '18

--- mark.tinka(a)seacom.mu wrote: From: Mark Tinka <mark.tinka(a)seacom.mu> As Trump said..." ---------------------------------------------- That should be added to Godwin's Law! >:-/ https://en.wikipedia.org/wiki/Godwin's_law scott

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(perhaps off topic, but) Microwave Towers
by Miles Fidelman 17 Jul '18

17 Jul '18

Hi Folks, I find myself driving down Route 66. On our way through Arizona, I was surprised by what look like a lot of old-style microwave links. They pretty much follow the East-West rail line - where I'd expect there's a lot of fiber buried. Struck me as somewhat interesting. It also struck me that folks here might have some comments. Miles Fidelman -- In theory, there is no difference between theory and practice. In practice, there is. .... Yogi Berra

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Looking for Facebook NOC
by Siyuan Miao 17 Jul '18

17 Jul '18

Hi, Our network in Asia Pacific region was always allocated to Ashburn / Lonodn CDN. I'll be very grateful if there's someone from Facebook NOC could give us a hand to troubleshoot this off list. Best Regards, Siyuan Miao

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Bogon prefix c0f:f618::/32 announced via Cogent
by Siyuan Miao 17 Jul '18

17 Jul '18

Hi, c0f:f618::/32 originated from AS327814 is announcing via Cogent for several weeks. I've tried to contact Cogent and AS327814 but didn't receive any reply. Tue Jul 10 17:52:48.602 UTC BGP routing table entry for c0f:f618::/32 Versions: Process bRIB/RIB SendTblVer Speaker 76403269 76403269 Local Label: 61339 Last Modified: Jul 3 13:31:40.815 for 1w0d Paths: (1 available, best #1) Advertised to peers (in unique update groups): 38.5.0.99 Path #1: Received by speaker 0 Advertised to peers (in unique update groups): 38.5.0.99 327814 2001:550:0:1000::261c:166 (metric 119060) from 2001:550:0:1000::261c:153 (38.28.1.102) Origin incomplete, localpref 130, valid, internal, best, group-best Received Path ID 0, Local Path ID 0, version 76403269 Community: 174:11100 174:20999 174:21101 174:22012 Originator: 38.28.1.102, Cluster list: 38.28.1.83, 38.28.1.67, 38.28.1.92

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Akamai contact
by Eric Germann 16 Jul '18

16 Jul '18

Now that I’ve learned Delta is an airline, runs hotels, and makes faucets, amongst other things, if there is an Akamai [Company that deploys CDN’s and other things] contact who could contact me off list re: continuing to troubleshoot a Delta Airlines [amongst other sites] issue that would be most appreciated. Thank you EKG

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Gmail admin
by Brian 16 Jul '18

16 Jul '18

Is there a gmail admin that can contact me offlist? Thanks much.

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NTT engineer in the wings?
by JASON BOTHE 16 Jul '18

16 Jul '18

If there is someone listening from NTT engineering, would you kindly write back? The IP NOC is unable to locate anyone because it’s Sunday so I thought I might try here. Thanks! J~

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Linux BNG
by Baldur Norddahl 15 Jul '18

15 Jul '18

Hello I am investigating Linux as a BNG. The BNG (Broadband Network Gateway) being the thing that acts as default gateway for our customers. The setup is one VLAN per customer. Because 4095 VLANs is not enough, we have QinQ with double VLAN tagging on the customers. The customers can use DHCP or static configuration. DHCP packets need to be option82 tagged and forwarded to a DHCP server. Every customer has one or more static IP addresses. IPv4 subnets need to be shared among multiple customers to conserve address space. We are currently using /26 IPv4 subnets with 60 customers sharing the same default gateway and netmask. In Linux terms this means 60 VLAN interfaces per bridge interface. However Linux is not quite ready for the task. The primary problem being that the system does not scale to thousands of VLAN interfaces. We do not want customers to be able to send non routed packets directly to each other (needs proxy arp). Also customers should not be able to steal another customers IP address. We want to hard code the relation between IP address and VLAN tagging. This can be implemented using ebtables, but we are unsure that it could scale to thousands of customers. I am considering writing a small program or kernel module. This would create two TAP devices (tap0 and tap1). Traffic received on tap0 with VLAN tagging, will be stripped of VLAN tagging and delivered on tap1. Traffic received on tap1 without VLAN tagging, will be tagged according to a lookup table using the destination IP address and then delivered on tap0. ARP and DHCP would need some special handling. This would be completely stateless for the IPv4 implementation. The IPv6 implementation would be harder, because Link Local addressing needs to be supported and that can not be stateless. The customer CPE will make up its own Link Local address based on its MAC address and we do not know what that is in advance. The goal is to support traffic of minimum of 10 Gbit/s per server. Ideally I would have a server with 4x 10 Gbit/s interfaces combined into two 20 Gbit/s channels using bonding (LACP). One channel each for upstream and downstream (customer facing). The upstream would be layer 3 untagged and routed traffic to our transit routers. I am looking for comments, ideas or alternatives. Right now I am considering what kind of CPU would be best for this. Unless I take steps to mitigate, the workload would probably go to one CPU core only and be limited to things like CPU cache and PCI bus bandwidth. Regards, Baldur

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