- NANOG - lists.nanog.org

Voice channels (FTTH, DOCSIS, VoLTE)
by Jean-Francois Mezei 28 Nov '16

28 Nov '16

I need to verify some claims made by incumbents in Canada that VoLTE data travels on a totally separate channel between the phone and the antenna. Does anyone have links to relevant VoLTE documentation that would provide how VoLTE is provisioned ? I was under the impression that it was more of an "app" on the phone that used the same IP address given for access to Internet. Does the phone get a separate IP and possibly separate VLAN with dedicated bandwidth to ensure voice call quality? Or are all the performance tricks done on land beyond the antenna once the packets are identified as VoLTE, but the phone itself just treats them as a normal app ? I know that for FTTH, there is a separate "channel" where the "POTS" emulation can be provided with its own dedicated IP and bandwidth. Would DOCSIS be the same as FTTH, with the cableco voice service riding isnide the same DOCSIS bandwidth but with pre-allocated bandwidth, or do they allocate separate NTSC channels with a totally separate data pipe ? (in which case, in systems with only 42mhz of uplink frequencies, the voice would have its own NTSC channel on uplink?

7 11

CGNAT - Seeking Real World Experience
by Adam 27 Nov '16

27 Nov '16

I'm crunching the numbers on the cost effectiveness of implementing CGN vs IPv4 auctions. The determining factor is how many ephemeral ports are reserved for each customer. This is for a residential broadband environment. Is anybody doing deterministic NAT/PAT (i.e. each customer gets X ports - no more, no less)? My thinking is that X=8192 would cover even the power users. However, with only 8 customers per public IPv4 address, CGN is not worth the trouble. With X=8192, our money and time would better be spent acquiring additional IPv4 space. Are people successfully using a smaller deterministic port allocation? What's your X? If I can't make the numbers work for deterministic NAT, I might be able to live with dynamic port assignments. Specifically, I'm referring to what vendor J calls "Port Block Allocation". I was thinking 1024 ports per block, with up to 8 blocks per customer (and a bunch of log correlation to determine who was using which ip:port tuple at a given datetime). I *can* make the math work out in favor of CGN if the average customer uses <= 3072 ports (3 blocks). But is that going to be enough? I'd love to hear other people's experiences. Thanks! -Adam

4 3

Weekly Routing Table Report
by cscora＠apnic.net 25 Nov '16

25 Nov '16

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, AusNOG, SANOG, PacNOG, SAFNOG, SdNOG, BJNOG, CaribNOG and the RIPE Routing WG. Daily listings are sent to bgp-stats(a)lists.apnic.net For historical data, please see http://thyme.rand.apnic.net. If you have any comments please contact Philip Smith <pfsinoz(a)gmail.com>. Routing Table Report 04:00 +10GMT Sat 26 Nov, 2016 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 623316 Prefixes after maximum aggregation (per Origin AS): 221044 Deaggregation factor: 2.82 Unique aggregates announced (without unneeded subnets): 302782 Total ASes present in the Internet Routing Table: 55320 Prefixes per ASN: 11.27 Origin-only ASes present in the Internet Routing Table: 36351 Origin ASes announcing only one prefix: 15321 Transit ASes present in the Internet Routing Table: 6551 Transit-only ASes present in the Internet Routing Table: 168 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 40 Max AS path prepend of ASN ( 55644) 36 Prefixes from unregistered ASNs in the Routing Table: 62 Unregistered ASNs in the Routing Table: 18 Number of 32-bit ASNs allocated by the RIRs: 16307 Number of 32-bit ASNs visible in the Routing Table: 12418 Prefixes from 32-bit ASNs in the Routing Table: 50327 Number of bogon 32-bit ASNs visible in the Routing Table: 438 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 406 Number of addresses announced to Internet: 2832190628 Equivalent to 168 /8s, 207 /16s and 204 /24s Percentage of available address space announced: 76.5 Percentage of allocated address space announced: 76.5 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 98.3 Total number of prefixes smaller than registry allocations: 205576 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 156914 Total APNIC prefixes after maximum aggregation: 42915 APNIC Deaggregation factor: 3.66 Prefixes being announced from the APNIC address blocks: 171012 Unique aggregates announced from the APNIC address blocks: 70398 APNIC Region origin ASes present in the Internet Routing Table: 5194 APNIC Prefixes per ASN: 32.92 APNIC Region origin ASes announcing only one prefix: 1155 APNIC Region transit ASes present in the Internet Routing Table: 942 Average APNIC Region AS path length visible: 4.3 Max APNIC Region AS path length visible: 40 Number of APNIC region 32-bit ASNs visible in the Routing Table: 2510 Number of APNIC addresses announced to Internet: 759790148 Equivalent to 45 /8s, 73 /16s and 122 /24s APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319, 58368-59391, 63488-64098, 64297-64395, 131072-137529 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: 188162 Total ARIN prefixes after maximum aggregation: 89363 ARIN Deaggregation factor: 2.11 Prefixes being announced from the ARIN address blocks: 194504 Unique aggregates announced from the ARIN address blocks: 89415 ARIN Region origin ASes present in the Internet Routing Table: 16130 ARIN Prefixes per ASN: 12.06 ARIN Region origin ASes announcing only one prefix: 5641 ARIN Region transit ASes present in the Internet Routing Table: 1707 Average ARIN Region AS path length visible: 3.8 Max ARIN Region AS path length visible: 23 Number of ARIN region 32-bit ASNs visible in the Routing Table: 1599 Number of ARIN addresses announced to Internet: 1105886880 Equivalent to 65 /8s, 234 /16s and 126 /24s ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 (pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153 3354-4607, 4865-5119, 5632-6655, 6912-7466 7723-8191, 10240-12287, 13312-15359, 16384-17407 18432-20479, 21504-23551, 25600-26591, 26624-27647, 29696-30719, 31744-33791 35840-36863, 39936-40959, 46080-47103 53248-55295, 62464-63487, 64198-64296, 393216-397212 ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8, 12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8, 20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8, 29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8, 40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8, 53/8, 54/8, 55/8, 56/8, 57/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 128/8, 129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8, 174/8, 184/8, 192/8, 198/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8, RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 149381 Total RIPE prefixes after maximum aggregation: 72721 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 160364 Unique aggregates announced from the RIPE address blocks: 98187 RIPE Region origin ASes present in the Internet Routing Table: 18178 RIPE Prefixes per ASN: 8.82 RIPE Region origin ASes announcing only one prefix: 7801 RIPE Region transit ASes present in the Internet Routing Table: 3053 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 28 Number of RIPE region 32-bit ASNs visible in the Routing Table: 5091 Number of RIPE addresses announced to Internet: 709403520 Equivalent to 42 /8s, 72 /16s and 163 /24s RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 (pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-35839, 38912-39935 40960-45055, 47104-52223, 56320-58367 59392-61439, 61952-62463, 64396-64495 196608-207259 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8, 141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 63199 Total LACNIC prefixes after maximum aggregation: 12692 LACNIC Deaggregation factor: 4.98 Prefixes being announced from the LACNIC address blocks: 79506 Unique aggregates announced from the LACNIC address blocks: 37752 LACNIC Region origin ASes present in the Internet Routing Table: 2485 LACNIC Prefixes per ASN: 31.99 LACNIC Region origin ASes announcing only one prefix: 549 LACNIC Region transit ASes present in the Internet Routing Table: 597 Average LACNIC Region AS path length visible: 5.0 Max LACNIC Region AS path length visible: 30 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 2941 Number of LACNIC addresses announced to Internet: 170815808 Equivalent to 10 /8s, 46 /16s and 113 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-266652 + ERX transfers LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8, 191/8, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 15270 Total AfriNIC prefixes after maximum aggregation: 3345 AfriNIC Deaggregation factor: 4.57 Prefixes being announced from the AfriNIC address blocks: 17524 Unique aggregates announced from the AfriNIC address blocks: 6664 AfriNIC Region origin ASes present in the Internet Routing Table: 741 AfriNIC Prefixes per ASN: 23.65 AfriNIC Region origin ASes announcing only one prefix: 175 AfriNIC Region transit ASes present in the Internet Routing Table: 183 Average AfriNIC Region AS path length visible: 4.7 Max AfriNIC Region AS path length visible: 28 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 277 Number of AfriNIC addresses announced to Internet: 85820672 Equivalent to 5 /8s, 29 /16s and 133 /24s AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4538 5545 4190 74 ERX-CERNET-BKB China Education and Rese 7545 3608 390 246 TPG-INTERNET-AP TPG Telecom Limited, AU 17974 2959 905 71 TELKOMNET-AS2-AP PT Telekomunikasi Indo 9829 2702 1499 548 BSNL-NIB National Internet Backbone, IN 4766 2700 11132 740 KIXS-AS-KR Korea Telecom, KR 9808 2231 8698 33 CMNET-GD Guangdong Mobile Communication 4755 2045 428 217 TATACOMM-AS TATA Communications formerl 45899 1710 1244 96 VNPT-AS-VN VNPT Corp, VN 4808 1651 2164 475 CHINA169-BJ China Unicom Beijing Provin 24560 1567 542 228 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 22773 3573 2967 152 ASN-CXA-ALL-CCI-22773-RDC - Cox Communi 6327 3287 1333 82 SHAW - Shaw Communications Inc., CA 18566 2196 405 109 MEGAPATH5-US - MegaPath Corporation, US 6389 2095 3671 39 BELLSOUTH-NET-BLK - BellSouth.net Inc., 20115 1950 2006 405 CHARTER-NET-HKY-NC - Charter Communicat 30036 1771 334 363 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom 209 1737 5069 652 CENTURYLINK-US-LEGACY-QWEST - Qwest Com 6983 1677 848 227 ITCDELTA - Earthlink, Inc., US 701 1600 10634 657 UUNET - MCI Communications Services, In 16509 1495 2800 507 AMAZON-02 - Amazon.com, Inc., US Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 39891 3334 171 18 ALJAWWALSTC-AS , SA 20940 2952 1115 2088 AKAMAI-ASN1 , US 9121 2041 1691 18 TTNET , TR 34984 1983 327 364 TELLCOM-AS , TR 13188 1606 99 58 TRIOLAN , UA 12479 1383 1032 53 UNI2-AS , ES 8551 1201 377 46 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 6849 1143 355 22 UKRTELNET , UA 8402 1137 544 15 CORBINA-AS OJSC "Vimpelcom", RU 12389 954 1134 424 ROSTELECOM-AS , RU Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 10620 3533 545 148 Telmex Colombia S.A., CO 8151 2285 3369 550 Uninet S.A. de C.V., MX 7303 1528 964 247 Telecom Argentina S.A., AR 6503 1486 437 54 Axtel, S.A.B. de C.V., MX 11830 1419 368 66 Instituto Costarricense de Electricidad 6147 1281 377 27 Telefonica del Peru S.A.A., PE 28573 1035 2263 171 CLARO S.A., BR 7738 1022 1882 41 Telemar Norte Leste S.A., BR 3816 988 474 193 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 11172 911 126 80 Alestra, S. de R.L. de C.V., MX Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24863 1215 402 50 LINKdotNET-AS, EG 36903 692 348 117 MT-MPLS, MA 37611 680 67 6 Afrihost, ZA 36992 575 1373 25 ETISALAT-MISR, EG 8452 472 1472 15 TE-AS TE-AS, EG 24835 419 658 16 RAYA-AS, EG 37492 396 288 72 ORANGE-TN, TN 29571 364 37 11 CITelecom-AS, CI 15399 310 35 6 WANANCHI-KE, KE 36974 275 140 11 AFNET-AS, CI Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 4538 5545 4190 74 ERX-CERNET-BKB China Education and Rese 7545 3608 390 246 TPG-INTERNET-AP TPG Telecom Limited, AU 22773 3573 2967 152 ASN-CXA-ALL-CCI-22773-RDC - Cox Communi 10620 3533 545 148 Telmex Colombia S.A., CO 39891 3334 171 18 ALJAWWALSTC-AS , SA 6327 3287 1333 82 SHAW - Shaw Communications Inc., CA 17974 2959 905 71 TELKOMNET-AS2-AP PT Telekomunikasi Indo 20940 2952 1115 2088 AKAMAI-ASN1 , US 9829 2702 1499 548 BSNL-NIB National Internet Backbone, IN 4766 2700 11132 740 KIXS-AS-KR Korea Telecom, KR Complete listing at http://thyme.rand.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 22773 3573 3421 ASN-CXA-ALL-CCI-22773-RDC - Cox Communi 10620 3533 3385 Telmex Colombia S.A., CO 7545 3608 3362 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 3334 3316 ALJAWWALSTC-AS , SA 6327 3287 3205 SHAW - Shaw Communications Inc., CA 17974 2959 2888 TELKOMNET-AS2-AP PT Telekomunikasi Indo 9808 2231 2198 CMNET-GD Guangdong Mobile Communication 9829 2702 2154 BSNL-NIB National Internet Backbone, IN 18566 2196 2087 MEGAPATH5-US - MegaPath Corporation, US 6389 2095 2056 BELLSOUTH-NET-BLK - BellSouth.net Inc., Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 65001 PRIVATE 5.143.176.0/20 15468 KLGELECS-AS 38, Teatralnaya st 65001 PRIVATE 31.172.192.0/20 15468 KLGELECS-AS 38, Teatralnaya st 65001 PRIVATE 31.172.192.0/21 15468 KLGELECS-AS 38, Teatralnaya st 65001 PRIVATE 31.172.200.0/21 15468 KLGELECS-AS 38, Teatralnaya st 65001 PRIVATE 31.172.208.0/21 15468 KLGELECS-AS 38, Teatralnaya st 65001 PRIVATE 31.172.216.0/21 15468 KLGELECS-AS 38, Teatralnaya st 65000 PRIVATE 31.219.177.0/25 8966 ETISALAT-AS P.O. Box 1150, Dub 65000 PRIVATE 31.219.177.128/25 8966 ETISALAT-AS P.O. Box 1150, Dub 64855 PRIVATE 41.220.200.0/21 36945 mcelISP, MZ 65001 PRIVATE 46.237.32.0/20 13118 ASN-YARTELECOM PJSC Rostelecom Complete listing at http://thyme.rand.apnic.net/current/data-badAS Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 14.128.12.0/22 55763 UNKNOWN 14.128.12.0/24 55763 UNKNOWN 14.128.13.0/24 55763 UNKNOWN 14.128.15.0/24 55763 UNKNOWN 27.100.7.0/24 56096 UNKNOWN 27.110.192.0/22 45664 UNKNOWN 27.110.196.0/22 45664 UNKNOWN 27.110.200.0/22 45664 UNKNOWN 27.110.204.0/22 45664 UNKNOWN 27.110.224.0/22 45664 UNKNOWN Complete listing at http://thyme.rand.apnic.net/current/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:16 /9:13 /10:36 /11:102 /12:274 /13:522 /14:1050 /15:1785 /16:13147 /17:7830 /18:13011 /19:25386 /20:38145 /21:40607 /22:72461 /23:60786 /24:346839 /25:473 /26:378 /27:310 /28:62 /29:38 /30:12 /31:1 /32:32 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6327 3083 3287 SHAW - Shaw Communications Inc., CA 39891 2896 3334 ALJAWWALSTC-AS , SA 22773 2782 3573 ASN-CXA-ALL-CCI-22773-RDC - Cox Communi 18566 2089 2196 MEGAPATH5-US - MegaPath Corporation, US 30036 1587 1771 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom 10620 1443 3533 Telmex Colombia S.A., CO 9121 1423 2041 TTNET , TR 6389 1393 2095 BELLSOUTH-NET-BLK - BellSouth.net Inc., 13188 1351 1606 TRIOLAN , UA 6983 1323 1677 ITCDELTA - Earthlink, Inc., US Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1569 2:802 4:23 5:2331 6:32 8:1012 12:1806 13:54 14:1756 15:24 16:2 17:102 18:126 20:48 23:1919 24:1817 27:2378 31:1803 32:83 33:6 35:3 36:364 37:2427 38:1301 39:42 40:99 41:2941 42:458 43:1896 44:50 45:2245 46:2540 47:106 49:1179 50:939 51:14 52:588 53:2 54:353 55:8 56:4 57:40 58:1594 59:1006 60:379 61:1846 62:1478 63:1935 64:4574 65:2176 66:4357 67:2253 68:1146 69:3288 70:1295 71:561 72:2071 74:2593 75:404 76:417 77:1437 78:1556 79:922 80:1349 81:1409 82:998 83:711 84:867 85:1685 86:475 87:1123 88:716 89:2036 90:198 91:6093 92:930 93:2368 94:2433 95:2676 96:558 97:348 98:944 99:93 100:147 101:1186 103:12836 104:2595 105:147 106:468 107:1465 108:788 109:2488 110:1279 111:1644 112:1141 113:1167 114:1053 115:1694 116:1682 117:1559 118:2119 119:1577 120:977 121:1094 122:2292 123:2041 124:1603 125:1846 128:676 129:472 130:422 131:1360 132:611 133:176 134:521 135:206 136:403 137:393 138:1795 139:435 140:607 141:472 142:697 143:886 144:727 145:169 146:950 147:664 148:1386 149:551 150:678 151:967 152:694 153:310 154:690 155:947 156:541 157:566 158:434 159:1323 160:559 161:723 162:2448 163:544 164:787 165:1122 166:356 167:1217 168:2356 169:684 170:2345 171:259 172:822 173:1822 174:763 175:715 176:1741 177:4098 178:2381 179:1135 180:2151 181:1980 182:2123 183:1016 184:835 185:8080 186:3186 187:2204 188:2273 189:1766 190:7912 191:1321 192:9152 193:5759 194:4557 195:3868 196:1873 197:1259 198:5598 199:5829 200:7158 201:3739 202:10177 203:9813 204:4479 205:2763 206:3003 207:3128 208:4057 209:3890 210:3904 211:2054 212:2751 213:2416 214:848 215:67 216:5758 217:1984 218:818 219:600 220:1655 221:878 222:715 223:1358 End of report

1 0

Zoho Mail - SPF & DKIM Records...
by Michael Bullut 25 Nov '16

25 Nov '16

Greetings Team, Has anybody set up SPF & DKIM for a domain whose e-mails are handled by Zoho? Running into trouble setting them up. Warm regards, Michael Bullut. --- *Cell:* *+254 723 393 114.**Skype Name:* *Michael Bullut.* *Twitter:* * @Kipsang <http://twitter.com/Kipsang/>* *Blog: http://www.kipsang.com/ <http://www.kipsang.com/>* *E-mail:* *main(a)kipsang.com <main(a)kipsang.com>* *---*

4 3

Bell Canada contact - need help with DNS issue
by Rich Lafferty 25 Nov '16

25 Nov '16

Hi, Does anyone have a NOC or DNS administrator contact at Bell Canada? Their Toronto nameservers are returning SERVFAIL for our domain freshbooks.com since a general Bell DNS issue midday yesterday. $ dig freshbooks.com @207.164.234.129 ; <<>> DiG 9.8.3-P1 <<>> freshbooks.com @207.164.234.129 ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 54893 ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0 ;; QUESTION SECTION: ;freshbooks.com. IN A ;; Query time: 305 msec ;; SERVER: 207.164.234.129#53(207.164.234.129) ;; WHEN: Sat Nov 19 10:44:59 2016 ;; MSG SIZE rcvd: 32 No-one outside Bell is reporting issues, and other domains (ours or otherwise) are fine on Bell’s name servers. Thanks, -Rich -- Rich Lafferty Director of IT, FreshBooks - rich(a)freshbooks.com http://www.freshbooks.com/ Toll-free: (866) 303-6061 Phone: (416) 780-2700 x233

2 2

SFP DOM SNMP Polling?
by Tim Durack 22 Nov '16

22 Nov '16

I have a vendor that does not support SFP DOM SNMP polling. They state this is due to EEPROM read life cycle. Constant reads will damage the SFP. We SNMP poll SFP DOM from Cisco equipment without issue. Not heard this one before. Trying to see if there is some validity to the statement. Thoughts? Tim:>

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Anyone from American Express mail operations here?
by Eric Germann 22 Nov '16

22 Nov '16

Pardon the interruption Please contact me off list. EKG

1 0

Oracle buys... Dyn.
by Jay R. Ashworth 21 Nov '16

21 Nov '16

Happy Monday. This seems to me to be equivalent (and bad for the same reasons) to cable companies and/or ISPs being co-owned with program providers. http://www.zdnet.com/article/oracle-acquires-dns-provider-dyn-to-take-on-am… How will this affect *your* operations planning, if at all? Am I being overly cynical about Larry Ellison? :-) Cheers, -- jra -- Jay R. Ashworth Baylink jra(a)baylink.com Designer The Things I Think RFC 2100 Ashworth & Associates http://www.bcp38.info 2000 Land Rover DII St Petersburg FL USA BCP38: Ask For It By Name! +1 727 647 1274

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Facebook Geo Routing Issues
by John Cenile 21 Nov '16

21 Nov '16

Hello, Does anybody have a contact I could use at Facebook to get a routing issue resolved? Some of our networks are being routed to Miami, rather than using the much closer PoP of Sydney, and it's obviously causing significant performance issues when browsing Facebook.

4 3

nested prefixes in Internet
by Martin T 21 Nov '16

21 Nov '16

Hi, let's assume that there is an ISP "A" operating in Europe region who has /19 IPv4 allocation from RIPE. From this /19 they have leased /24 to ISP "B" who is multi-homed. This means that ISP "B" would like to announce this /24 prefix to ISP "A" and also to ISP "C". AFAIK this gives two possibilities: 1) Deaggregate /19 in ISP "A" network and create "inetnum" and "route" objects for all those networks to RIPE database. This means that ISP "A" announces around dozen IPv4 prefixes to Internet except this /24 and ISP "B" announces this specific /24 to Internet. 2) ISP "A" continues to announce this /19 to Internet and at the same time ISP "B" starts to announce /24 to Internet. As this /24 is more-specific than /19, then traffic to hosts in this /24 will end up in ISP "B" network. Which approach is better? To me the second one seems to be better because it keeps the IPv4 routing-table smaller and requires ISP "A" to make no deaggregation related configuration changes. Only bit weird behavior I can see with the second option is that if ISP "B" stops for some reason announcing this /24 network to Internet, then traffic to hosts in this /24 gets to ISP "A" network and is blackholed there. thanks, Martin

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