Differences between current version and predecessor to the previous major change of URG.
Other diffs: Previous Revision, Previous Author, or view the Annotated Edit History
| Newer page: | version 4 | Last edited on Monday, March 8, 2004 4:25:54 am | by StuartYeates | |
| Older page: | version 2 | Last edited on Sunday, March 7, 2004 4:42:25 pm | by CraigBox | Revert |
@@ -1,5 +1,6 @@
A flag set in a [TCP] header to define that the packet contains __URG__ent data.
-QualityOfService mechanisms can then be used
to ensure that
this packet
is routed along quicker links,
not dropped
in a congested network
, etc
.
+Contrary
to popular belief
this is not used
in QualityOfService, but is used to tell
a TCP reciever that there is urgent data further along the stream so they may wish to drop all data until it's recieved (for instance). Very few protocols use this feature
, telnet(1) being basically the only one I am aware of
.
-However, it's much like the "Priority: High" flag in MicrosoftOutlook, if everyone sets it, it gets devalued.
+----
+CategoryNetworking
