Routing issue to tsrv1.den1 (probably a CenturyLink issue)

[gtjoseph]

I'm in Denver on CenturyLink (AS209) and used to route to tsrv1.den1 without leaving Denver.  Sometime in the recent past though, CL has been routing me to Dallas to to get to the HE network which then sends me back to Denver via Kansas City.   The loop causes my 60/30 DSL to act like 25/20 for IPV6.

Code Select Expand

traceroute tserv1.den1.he.net
traceroute to tserv1.den1.he.net (184.105.250.46), 30 hops max, 60 byte packets
1  67.41.xxx.xxx (67.41.xxx.xxx)  0.280 ms  0.249 ms  0.242 ms
2  hlrn-dsl-gw06.hlrn.qwest.net (207.225.112.6)  22.104 ms  22.086 ms  22.087 ms
3  hlrn-agw1.inet.qwest.net (71.217.188.41)  22.074 ms  22.109 ms  22.106 ms
4  dal-pcor-03.inet.qwest.net (67.14.2.178)  38.492 ms  38.951 ms  38.958 ms
5  10ge6-2.core1.dal1.he.net (184.105.35.233)  39.471 ms  39.455 ms  39.423 ms
6  10ge5-3.core1.mci3.he.net (184.105.222.9)  52.718 ms  49.903 ms  51.848 ms
7  10ge15-4.core1.den1.he.net (184.105.222.21)  93.292 ms  67.881 ms  81.341 ms
8  tserv1.den1.he.net (184.105.250.46)  68.314 ms  68.322 ms  68.766 ms

CenturyLink was no help of course.  This was their response...

Thank you for contacting CenturyLink.

Based on the information you have provided, we don?t see any issue as described, we have Peering Agreements that are based on efficiency and cost and we can't investigate any unless ping rates are very high , when pinging to a URL or IP address. If you can?t get to a certain site please provide the URL/IP, the ping  and tracert to that site.

Can you guys help at all?

[cholzhauer]

ipv6@he.net is probably your best bet

[wildlava]

Same issue here. I used to get to the Denver tunnel with almost zero latency, now I get about 45ms added to my ping time via IPv4 to the tunnel IP:

traceroute to 184.105.250.46 (184.105.250.46), 30 hops max, 60 byte packets
1  corona.wildlava.net (10.1.2.1)  0.299 ms  0.302 ms  0.417 ms
2  hlrn-dsl-gw07.hlrn.qwest.net (207.225.112.7)  18.690 ms  18.847 ms  19.053 ms
3  hlrn-agw1.inet.qwest.net (71.217.188.49)  18.820 ms  19.310 ms  19.035 ms
4  dap-brdr-05.inet.qwest.net (67.14.2.178)  35.638 ms  35.774 ms  35.782 ms
5  10ge6-2.core1.dal1.he.net (184.105.35.233)  35.831 ms  35.967 ms  35.974 ms
6  100ge12-2.core1.mci3.he.net (184.105.81.205)  49.143 ms  47.279 ms  47.435 ms
7  10ge15-4.core1.den1.he.net (184.105.222.21)  64.619 ms  70.856 ms  70.192 ms
8  tserv1.den1.he.net (184.105.250.46)  64.504 ms  64.514 ms  63.822 ms