Differences between current version and previous revision of GSLB.
Other diffs: Previous Major Revision, Previous Author, or view the Annotated Edit History
| Newer page: | version 4 | Last edited on Saturday, July 23, 2005 1:13:00 pm | by AristotlePagaltzis | |
| Older page: | version 3 | Last edited on Tuesday, June 28, 2005 7:21:26 pm | by LinNah | Revert |
@@ -1,12 +1,8 @@
[Acronym] for __G__lobal __S__erver __L__oad __B__alancing
-GSLB is load
balancing multiple POPs
/sites, trying to give users closer access to the content, rather than just rrDNS
. It'
s supposed
to be more intelligent
.
+Load
balancing for
multiple [PoP]s
/sites, trying to give users closer access to the content. Usually done by a NameServer that also knows about the load on the [PoP]
s, so that it can swing traffic to the one which is loaded least, similar
to an [L4] switch
.
-A GSLB
is usually a device which is a
[DNS] server that also knows
about load on the [POP]s
, similar to an
[L4
] [Switch
], so can swing traffic to the one which is loaded least
, etc
.
+This
is different from RoundRobin
[DNS] using multiple A ResourceRecord~s. It tries to be intelligent
about sending connections to locations with low
load. Akamai
, f.ex., uses a combination of
[GSLB
] with
[DNS
], ping
, traceroute, and [BGP]
.
-GSLB is NOT the same as simple RRDNS using multiple A records.
-
-For example, Akamai, though Akamai uses way more advanced shit than GSLB. Akamai's GSLB is a combination of DNS, ping, traceroute, and BGP.
-
-
-* http://tenereillo.com/GSLBPageOfShame.htm
+!
See also:
+* [Why DNS Based Global Server Load Balancing (GSLB) Doesn’t Work |
http://tenereillo.com/GSLBPageOfShame.htm]
