1、 AMERICAN NATIONAL STANDARD FOR TELECOMMUNICATIONS ATIS-0600015.03.2013 ENERGY EFFICIENCY FOR TELECOMMUNICATION EQUIPMENT: METHODOLOGY FOR MEASUREMENT AND REPORTING FOR ROUTER AND ETHERNET SWITCH PRODUCTS As a leading technology and solutions development organization, ATIS brings together the top gl
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11、 National Standards Institute. Notice of Disclaimer 10; 100 a=0.1; b=0.8; c=0.1 (IPv4) Edge Router 3-6% 0; 10; 100 a=0.1; b=0.8; c=0.1 IPv4/6/MPLS Core Router 20-30% 0; 30; 100 a=0.1; b=0.8; c=0.1 IPv4/6/MPLS ATIS-0600015.03.2013 5 Table 2: Class definitions, TEER calculation parameters and load pro
12、files for Ethernet Switching Products Class Representative utilization % of utilization for energy measurements, u1, u2, u3 Weight multipliers a, b, c Traffic Profile Simple IMIX, Unicast Access 1-3% 0; 10; 100 a=0.1; b=0.8; c=0.1 Ethernet High Speed Access 5-8% 0; 10; 100 a=0.1; b=0.8; c=0.1 Ethern
13、et Distribution/Aggregation 10-15% 0;10;100 a=0.1; b=0.8; c=0.1 Ethernet Core 15-20% 0; 30; 100 a=0.1; b=0.8; c=0.1 Ethernet Data Center 12-18% 0; 30; 100 a=0.1; b=0.8; c=0.1 Ethernet 5.3 TEER Metric Definition (modular) TEER for modular packet-based network systems can also be estimated as throughp
14、ut measured for components/modules (Ti) divided by the sum of weighted components/modules power (energy consumption) (Pwi): niwiwbaseniiPPTTEER11Where: Ti= Individual Module Throughput Pwi= Individual Module Weighted Power Pwbase= Weighted Power of a Base System Excluding Modules Modular weighted po
15、wer Pwiand Pwbaseare calculated with the following formulas: 3*2*1*ucubua PPPPwi 3_*2_*1_*ubasecubasebubasea PPPPwbase Where: Pwi= Weighted Module Power Pwbase= Weighted Power of a Base System Excluding Modules (a, b, c) = Weighting for power at each utilization level, where a + b + c=1.0 (Pu1, Pu2,
16、 Pu3) = Module power at system utilization level (Pbase_u1, Pbase_u2, Pbase_u3) = Base power at system utilization level ATIS-0600015.03.2013 6 NOTE: Modular energy consumption and throughput are vendor approximations. When a modular TEER is provided, a representative-configuration TEER shall also b
17、e provided for comparison purposes. 5.4 TEER Evaluation To compare EE of products, they shall belong to the same product class. Recommended product classes are listed in Annex A. The class description covers the expected applications for EUTs deployed at certain points in the network. If the system
18、can be deployed in multiple roles, multiple TEER ratings can be provided. Examples of listing: 1. Medium Core Router, TEER=42 (representative HW/SW configuration follows). 2. Small Edge Router, estimated TEER = 50 (modular configuration based on component/module ratings). See Annex A for Classificat
19、ion Tables. Due to a wide variety of features and functions available on the EUT, it is very essential to report all features and functions active in the test configuration as described in Tables A.1 and A.2. 6 Test Procedure 6.1 General Measurement Condition The general requirements for measuring e
20、nergy efficiency are defined in ATIS-0600015.2009. The following are the general conditions for measurements within this standard: The equipment is to be powered and placed into the relevant operating mode. Allow the equipment to stabilize in this mode for 15 minutes. Measure the power for a period
21、of 15 minutes. If the power varies over the 15 minute measurement time interval, an average of the measurement will be calculated. 6.2 Equipment Configuration All testing shall be performed on a fully-loaded chassis, as defined by the referenced application. If there are customer specific applicatio
22、ns defining redundancy requirements, they should be clearly documented in the report. All ports shall be in an active state and passing or ready to pass traffic. System software (SW) shall be properly configured prior to the test and all the necessary HW components installed. HW and SW shall be repr
23、esentative of a production unit. There is no EUT configuration change allowed any time beyond preparation phase. This includes (but not limited to) external configuration commands, scripts executing configuration commands on EUT during testing, etc. 6.3 TEER Measurements Modular Method If the vendor
24、 chooses to provide the “modular” TEER estimates, it may be required to build more than one setup if the total number of modules exceeds the number of available slots in a chassis (or if some modules cannot be used together). In this case, the “base” system configuration is defined as a common syste
25、m parts, used by all modules. It may include chassis, fan tray, routing engine, etc. At this time, all other system slots should be fully populated with “function” modules, not necessary the same, all passing traffic at the same rate: idle, representative, or maximum NDR. ATIS-0600015.03.2013 7 Each
26、 test performed on complete system and then without one module at the time, following steps in 6.5. The power for each “function” module is the difference between total system power, with and without this “function” module. NOTE: Throughput and energy consumption may be affected by interaction betwe
27、en the system and module under test, so total calculated numbers may be not exactly the same as in representative test results. Therefore, vendors are advised to utilize representative testing whenever possible. If modular TEER results are provided, this should be explicitly noted. NOTE: It is accep
28、table to use cascaded/snaked traffic between ports on line cards for base chassis power measurements that are not throughput related. Table 3: Example of Modular System Hardware Data Reporting Module Name Part number Maximum Throughput (egress only) Power (W) u1=0% u2=30% u3=100% Base system 800-xxx
29、xx-01 na 150 150 170 Module 1 800-zzzz-02 40 Gbps 200 220 240 Module 2 800-xxxxx-03 20 Gbps 120 130 150 . . Module N Actual module names may be different for different products. 6.4 Traffic Generation/Operational Conditions 6.4.1 Traffic Topology If the ports on EUT can be grouped into “network/upli
30、nk” and “access/downlink” sides, according to vendor discretion, then traffic shall be run from every “network” side port to every “access” side port and vice-versa, thus forming full mesh traffic between two groups. All streams originated from every port shall be the same capacity. If all ports on
31、EUT have identical roles, then full mesh traffic with identical capacity streams between all ports shall be used. For modular systems with 6 or more modules, it may be advantageous to permit a multi mesh configuration to facilitate a modular test method, provided there is more than one mesh with at
32、least three modules per mesh. 6.4.2 Use of Traffic Generators Traffic generators are used to simulate traffic and collect the performance-related results according to the test conditions. Generators have to be configured for the correct traffic topology and traffic profile. ATIS-0600015.03.2013 8 Fi
33、gure 1: Example EUT Test Interconnect for two groups of ports 6.5 Measurement Procedure Prior to testing, the EUT shall be configured according to class requirements and offered load defined in the class requirements (Annex A). Prior to the actual test, the EUT shall be exposed to environmental cond
34、itions outlined in ATIS-0600015.2009. The procedure consists of four major steps. 6.5.1 Step 1: Qualification The first run determines the maximum load that can be sustained at Non Drop Rate (NDR). Any methodology is suitable, including binary search (similar to RFC2544), heuristics, or known maximu
35、m load values. There is no time limit for this run. The run is complete after a maximum (lossless) line rate is determined. The following three runs should be separated with idle time of 300 seconds or less If the test class requires the EUT to be “primed” with control plane information (ARP/MAC/rou
36、te learning, etc.), this shall be completed within the idle time window. 6.5.2 Step 2: Full Load The second run applies the NDR (identified at step 1) to the EUT for period of 15 min. Power shall be sampled for the entire period, and average consumption P100 recorded. 6.5.3 Step 3: Utilization (u2)
37、The third run reduces the line rate to utilization (u2) and runs for another 15 min. Power shall be sampled for the entire period, and average consumption Purecorded. Load reduction is achieved by reducing the line rate on all configured ports. Packet loss during any run (if seen) invalidates the me
38、asurement and resets testing to the qualification run to provide a better NDR estimate. At any moment during this run, the EUT should be able to return to full NDR load. Failure to do so disqualifies the test results. ATIS-0600015.03.2013 9 6.5.4 Step 4: Idle Load Run the EUT idle for another 15 min
39、utes. Power shall be measured for the entire period, and the average value shall be recorded. Load reduction is achieved by setting line data rate to 0% on all configured ports. At any moment during this run, the EUT should be able to return to full NDR load. Failure to do so disqualifies the test r
40、esults. 7 Reporting Can go to Internet (Full BGP) Table with 512MB or above Typically up to half - T3/E3 IMIX Traffic IPSec Tunnels: up to 200 ACL Entries: 1000 QoS: 4-8 Classes WAN Optimization: 10 sites/peers Configured Forwarding Options: MPLS, IPv4 Configured Forwarding Options: MPLS, IPv4 L Fun
41、ction of Memory and CPU; Can go to Internet (Full BGP) Table with 512MB or above Typically up to T3/E3 IMIX Traffic IPSec Tunnels: up to 500 ACL Entries: 2000 QoS: 4-8 Classes or even more WAN Optimization: 50 sites/peers Additional Features: ALCs, QoS, Firewall, IPSec, Voice, WAN Optimization, etc.
42、 Additional Features: ALCs, QoS, Firewall, IPSec, Voice, WAN Optimization, etc. Edge S M BGP: IPv4: 300000 IGP: 10000 VRF Scale: 250 VPNv4: 250k Pseudo-wires: 8k VPLS Scale: 500 BGP, T-LDP Sessions: 1000Attachments Ccts: 16k TE Tunnels (head/tail): 500 Maximum customer facing GE ports + redundant up
43、link 1-GE ports Configured Routing Protocols: BGP, OSPF, ISIS, LDP L BGP: IPv4: 1M IGP: 10000 VRF Scale: 500 VPNv4: 500k Pseudo-wires: 16k VPLS Scale: 1k BGP, T-LDP Sessions: 1000Attachments Ccts: 16k TE Tunnels (head/tail): 1k Maximum customer facing GE ports + redundant uplink 1-GE ports Configure
44、d Forwarding Optoins: MPLS, IPv4, IPv6 Core S IPv4 BGP: 300k IPv6 BGP: 5k IGP Routes: 4000 Multicast routes: 5k IPv4 BGP: 300 IPv6 BGP: 50 Subintf: 1000 TE Tunnels (Mid): 2K Up to 16 x 10G Maximum 10G ports + redundant 40G core uplinks Configured Routing Protocols: BGP, OSPF, ISIS, LDP, PIM-Multicas
45、t M IPv4 BGP: 300k IPv6 BGP: 15k IGP Routes: 8000 Multicast routes: 10k IPv4 BGP: 500 IPv6 BGP: 100 Subintf: 2000 TE Tunnels (Mid): 5K 24 72 x 10G Maximum 10G ports + redundant 40G core uplinks Configured L2VPN Services: VPWS, VPLS, Inter-working ATIS-0600015.03.2013 11 Class S,M,L Route Scale Servi
46、ce Scale Logical Interface Scale Port Configuration Typical Feature Set L IPv4 BGP: 500k IPv6 BGP: 50k IGP Routes: 15000 Multicast routes: 15k IPv4 BGP: 1000 IPv6 BGP: 200 Subintf: 4000 TE Tunnels (Mid): 10K 96 192 x 10G Maximum 10G ports + redundant 40G core uplinks Configured Forwarding Options: M
47、PLS PWE3, IP (GRE), L2TPv3 Additional Features: ACLs, QoS, Netflow, EoMPLS, MPLS TE Table A.2: Ethernet Switch Classifications Class Number of downlink ports Uplink Count total hours per year: 8760, non working hours: 6680. 876066802080 psw PPPwpsWhere: Pwps = Weighted power with power saving enable
48、d Pw= Weighted Power (Energy Consumption Rate) Pps= Power saving mode (Energy Consumption Rate) C.2 Supplementary Metric Definition for Explicit Power States Identical to described in paragraph 6.5 with relaxation on power state controls: EUT is allowed to move between power states at different test
49、 runs automatically or with operator input and is not required to return to full performance T100during test runs U1 and U2 immediately. TEERNRT = Tw / Pw, where Tw = a* Tu1+ b*Tu2+ c*T100, u1=10%, u2=20%, a=0.2,b=0.25, c=0.55 C.3 Supplementary Metric Definition for Peak Metric There is no new test method required. Information on T100 and P100is already available from normal TEER test procedure TEERpeak = T100/ P100ATIS-0600015.03.2013 15 C.4 ITU-T Recommendation L.1310 ITU-T recommendation L.1310 uses the metric call
