Intermittent problems with host18

Periodically I'm getting very slow or non-existent communication from host18; seems to be a problem at HE's end:

[milsoftw@cp1 /var]$ traceroute host18.linode.com
traceroute to host18.linode.com (64.62.190.18), 64 hops max, 44 byte packets
 1  66.79.164.1 (66.79.164.1)  0.444 ms  0.392 ms  0.386 ms
 2  66.79.175.1 (66.79.175.1)  0.472 ms  0.257 ms  0.272 ms
 3  manageddotcom.assertivenetworks.net (66.154.102.1)  0.316 ms  0.322 ms  0.524 ms
 4  728.ge-4-1-1.er10b.sjc2.us.above.net (209.133.64.123)  0.414 ms  0.354 ms  0.447 ms
 5  so-2-0-0.mpr4.sjc2.us.above.net (64.125.30.101)  0.425 ms  0.401 ms  0.372 ms
 6  so-3-0-0.mpr1.sjc7.us.above.net (64.125.30.173)  0.786 ms  0.623 ms  0.573 ms
 7  sjo-ix.he.net (206.223.116.37)  0.531 ms  0.482 ms  0.571 ms
 8  pos2-3.gsr12416.pao.he.net (66.220.13.42)  1.193 ms  1.221 ms  1.273 ms
 9  pos2-0.gsr12012.fmt.he.net (64.62.249.121)  2.404 ms  2.185 ms  2.225 ms
10  * host18.linode.com (64.62.190.18)  110.792 ms  108.621 ms
[milsoftw@cp1 /var]$ traceroute host18.linode.com
traceroute to host18.linode.com (64.62.190.18), 64 hops max, 44 byte packets
 1  66.79.164.1 (66.79.164.1)  0.508 ms  0.407 ms  0.461 ms
 2  66.79.175.1 (66.79.175.1)  0.270 ms  0.262 ms  0.275 ms
 3  manageddotcom.assertivenetworks.net (66.154.102.1)  0.355 ms  0.339 ms  0.287 ms
 4  728.ge-4-1-1.er10b.sjc2.us.above.net (209.133.64.123)  0.405 ms  0.403 ms  0.387 ms
 5  so-2-0-0.mpr4.sjc2.us.above.net (64.125.30.101)  0.414 ms  0.493 ms  0.363 ms
 6  so-3-0-0.mpr1.sjc7.us.above.net (64.125.30.173)  0.575 ms  0.607 ms  0.644 ms
 7  sjo-ix.he.net (206.223.116.37)  0.502 ms  0.560 ms  0.495 ms
 8  pos2-3.gsr12416.pao.he.net (66.220.13.42)  1.267 ms  1.572 ms  1.216 ms
 9  pos2-0.gsr12012.fmt.he.net (64.62.249.121)  2.205 ms  2.230 ms  2.168 ms
10  * host18.linode.com (64.62.190.18)  128.397 ms  115.847 ms

– Matthew