NANOG 74 agenda published
NANOG Community, The NANOG 74 Agenda is published at http://www.cvent.com/d/qgqs03/16K and available as an iCal Feed. The Program Committee has worked closely with our speakers to develop a first-rate program and we encourage all attendees to enjoy the whole conference. As we review submitted content, minor changes to the agenda are possible and will be updated in the online feed. Thank you to the many members of our community who submitted interesting content for NANOG 74! Over 700 attendees have registered and the NANOG family looks forward to welcoming all of you to Vancouver. Useful Information: - NANOG 74 General Information and Registration: http://www.cvent.com/d/qgqs03 - NANOG 74 Agenda: http://www.cvent.com/d/qgqs03/16K - Hotel Room Block(s) Information: http://www.cvent.com/d/qgqs03/8K - Reminder, registration is required to participate in the NANOG 74 Hackathon: http://www.cvent.com/d/wgqhql A welcome message that will be sent to registered NANOG 74 attendees shortly will provide more information on scheduled events and applications to help you to make the most of your time in Vancouver. Safe travels and see you in Vancouver. Sincerely, Ryan Woolley NANOG PC
Re: overages for power usage
This isn't a data center specific answer but it may help explain upstream cost drivers that may factor into rates seen. For commercial and industrial customers, utilities will often measure and bill power demand in kW separate from energy in kWh. Energy may only be $0.04/kWh but demand charges can be tens of dollars per peak kW during a bill cycle (averaged over 15 minute intervals). The demand fees are a result of grid capacity requirements...the utilities need to maintain enough readily available generation capacity (turbines, storage, etc.) at all times to handle the peak loads, even if those loads are only seen once a year. If demand ever exceeds capacity, then brownouts and blackouts are on the plate. Assuming a $10/kW demand charge, a customer consuming 5000 kWh energy and drawing a 15 min peak average of 40 kW would pay $200 for energy + $400 for demand, for a monthly electric cost of $600. If the same customer could do load leveling to get those peaks down to 10 kW, they'd pay a $100 demand charge instead of $400, for a monthly electric cost of $300. With perfectly constant loads, 5000 kWh consumed over a 30 day month (720 hours) translates to 6.94 kW. 20 amp 240v circuits can each supply up to 3.84 kW continuous using the 80% loading rules. At 208v, that drops to 3.328 kW continuous. Said another way, with level loads, approximately 5000 kWh per month could be pulled through two 20 amp circuits running close to their capacity limits 24x7. Here is an example rate sheet for Xcel Energy in the US state of Colorado: https://www.xcelenergy.com/staticfiles/xe/Regulatory/COBusRates.pdf On Thu, Sep 20, 2018, 21:11 Alan Hannan wrote: > What kind of typical overage costs have you seen when a customer/you use > more than you've committed to? > > I'm especially interested in datacenter power situations, where maybe you > sign up for 5kw or 500kw and use more than that in a given month. Is it > billed at the same rate? Is it billed at a higher rate? What's the % > increase of the higher rate versus the regular rate? > > Thanks! >
Weekly Routing Table Report
This is an automated weekly mailing describing the state of the Internet Routing Table as seen from APNIC's router in Japan. The posting is sent to APOPS, NANOG, AfNOG, SANOG, PacNOG, SAFNOG TZNOG, MENOG, BJNOG, SDNOG, CMNOG, LACNOG, IRNOG and the RIPE Routing WG. Daily listings are sent to bgp-st...@lists.apnic.net For historical data, please see http://thyme.rand.apnic.net. If you have any comments please contact Philip Smith . Routing Table Report 04:00 +10GMT Sat 22 Sep, 2018 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary BGP routing table entries examined: 717186 Prefixes after maximum aggregation (per Origin AS): 275396 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 344253 Total ASes present in the Internet Routing Table: 61918 Prefixes per ASN: 11.58 Origin-only ASes present in the Internet Routing Table: 53461 Origin ASes announcing only one prefix: 23313 Transit ASes present in the Internet Routing Table:8457 Transit-only ASes present in the Internet Routing Table:263 Average AS path length visible in the Internet Routing Table: 4.0 Max AS path length visible: 36 Max AS path prepend of ASN ( 30873) 34 Prefixes from unregistered ASNs in the Routing Table:66 Number of instances of unregistered ASNs:66 Number of 32-bit ASNs allocated by the RIRs: 24155 Number of 32-bit ASNs visible in the Routing Table: 19503 Prefixes from 32-bit ASNs in the Routing Table: 81974 Number of bogon 32-bit ASNs visible in the Routing Table:27 Special use prefixes present in the Routing Table:1 Prefixes being announced from unallocated address space:312 Number of addresses announced to Internet: 2852765379 Equivalent to 170 /8s, 9 /16s and 190 /24s Percentage of available address space announced: 77.1 Percentage of allocated address space announced: 77.1 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 99.0 Total number of prefixes smaller than registry allocations: 239906 APNIC Region Analysis Summary - Prefixes being announced by APNIC Region ASes: 195142 Total APNIC prefixes after maximum aggregation: 55652 APNIC Deaggregation factor:3.51 Prefixes being announced from the APNIC address blocks: 193036 Unique aggregates announced from the APNIC address blocks:79550 APNIC Region origin ASes present in the Internet Routing Table:9105 APNIC Prefixes per ASN: 21.20 APNIC Region origin ASes announcing only one prefix: 2568 APNIC Region transit ASes present in the Internet Routing Table: 1353 Average APNIC Region AS path length visible:4.0 Max APNIC Region AS path length visible: 29 Number of APNIC region 32-bit ASNs visible in the Routing Table: 4066 Number of APNIC addresses announced to Internet: 767534722 Equivalent to 45 /8s, 191 /16s and 166 /24s APNIC AS Blocks4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319, 58368-59391, 63488-64098, 64297-64395, 131072-139577 APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8, 49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8, 106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8, 116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8, 123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8, 163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8, 223/8, ARIN Region Analysis Summary Prefixes being announced by ARIN Region ASes:213254 Total ARIN prefixes after maximum aggregation: 100728 ARIN Deaggregation factor: 2.12 Prefixes being announced from the ARIN address blocks: 212954 Unique aggregates announced from the ARIN address blocks:101173 ARIN Region origin ASes present in the Internet Routing Table:18240 ARIN Prefixes per ASN:11.68
RE: overages for power usage
We see lots of different approaches to this, depending on the datacenter operator: 1. Customer pays for power overage at an agreed to rate that is usually the same as their committed rate (but could be more). This could be based on a: * Per KW consumed * Per KWh consumed * Per Amp consumed 1. Customer is notified that they are over their committed draw, and asked to increase their commitment. Could be: * Immediately * After a few months of repeated overages 1. Nothing happens (operator is not monitoring) From: NANOG On Behalf Of Alan Hannan Sent: Thursday, September 20, 2018 7:12 PM To: Unknown Subject: overages for power usage What kind of typical overage costs have you seen when a customer/you use more than you've committed to? I'm especially interested in datacenter power situations, where maybe you sign up for 5kw or 500kw and use more than that in a given month. Is it billed at the same rate? Is it billed at a higher rate? What's the % increase of the higher rate versus the regular rate? Thanks!
Re: overages for power usage
If we saw a dc customer approaching their power limit we would typically have a conversation or message them to make sure they were aware. If they anticipated needing more sustained power we would update their agreement accordingly. Sometimes it would be a one-time occurrence so we would typically let it slide. If they needed additional power usually it was in 10 Amps per cabinet or 5-10kW increments if in a larger footprint (cage or suite). We typically did not punish our customers for overages because we wanted them to continue to grow with us and we had the additional power capacity available. Some colo providers will put a premium on power overages 5-50% (I have seen all over the board) in order to make additional revenue on power spikes, make the customer more accountable to staying within their power commit or maybe the power is limited at that dc or on that floor. Hope this helps. Feel free to call with additional questions - 816-213-7731. Greg On Thu, Sep 20, 2018 at 9:13 PM Alan Hannan wrote: > What kind of typical overage costs have you seen when a customer/you use > more than you've committed to? > > I'm especially interested in datacenter power situations, where maybe you > sign up for 5kw or 500kw and use more than that in a given month. Is it > billed at the same rate? Is it billed at a higher rate? What's the % > increase of the higher rate versus the regular rate? > > Thanks! >
RE: overages for power usage
We would typically order a 20 or 30-amp 208v circuit per rack for a flat fee then install a metered PDU to make sure we didn’t overload it. The flat fee per-circuit seems pretty standard in the US. Using your own metered PDU would help predict the usage if you’re being billed by kWH. Kenny From: NANOG On Behalf Of Baldur Norddahl Sent: Thursday, September 20, 2018 11:34 PM To: nanog@nanog.org Subject: Re: overages for power usage The fuses might match what you ordered. If you go over you might lose power due to a blown fuse. When there is A and B power for redundancy, you need to make sure that one side can take the whole load without blowing any fuses. Otherwise you have no redundancy. Regards Baldur fre. 21. sep. 2018 04.12 skrev Alan Hannan mailto:a...@routingloop.com>>: What kind of typical overage costs have you seen when a customer/you use more than you've committed to? I'm especially interested in datacenter power situations, where maybe you sign up for 5kw or 500kw and use more than that in a given month. Is it billed at the same rate? Is it billed at a higher rate? What's the % increase of the higher rate versus the regular rate? Thanks!
RE: overages for power usage
> What kind of typical overage costs have you seen when a customer/you use more > than you've committed to? Telehouse London is 0.75 (GBP) per KWH of overage. Obviously it will depend on datacentre/country. Telehouse increase this annually at 2% above inflation measured against the RPI (last increase was 5.27%)
Re: overages for power usage
The fuses might match what you ordered. If you go over you might lose power due to a blown fuse. When there is A and B power for redundancy, you need to make sure that one side can take the whole load without blowing any fuses. Otherwise you have no redundancy. Regards Baldur fre. 21. sep. 2018 04.12 skrev Alan Hannan : > What kind of typical overage costs have you seen when a customer/you use > more than you've committed to? > > I'm especially interested in datacenter power situations, where maybe you > sign up for 5kw or 500kw and use more than that in a given month. Is it > billed at the same rate? Is it billed at a higher rate? What's the % > increase of the higher rate versus the regular rate? > > Thanks! >
