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netstat -r question
Post 302522339 by Perderabo on Saturday 14th of May 2011 01:57:16 PM
05-14-2011
224.192.48.0/20 is in CIDR format. It's the equivalent to subnet 224.192.48.0 with a netmask of 255.255.240.0. A netmask is always a sequence of 1-bits's followed by a sequence of 0-bit's. The subnet mask 255.255.240.0 has 20 1-bit's. The notation 224.192.48.0/20 is so much more compact than "224.192.48.0 with a netmask of 255.255.240.0" that lots of us just use it all the time even on internal networks that don't involve CIDR.
To split a network 50-25-25 we need to crack it into 4 pieces. That way we can give 2 pieces to the one big guy and then the little guys get one piece each. Notice that 4 is a power of two. It's gotta be that way. If these 3 guys each wanted one third of the network we would be outta luck.
The guy with two pieces can fold them together (or aggregate) them. To do that he needed either the first two or the second two pieces. You can't just give him any random selection.
The 4 way split involved added two more 1-bits's to the subnet mask.
That 4-3-1 split you ask about happens to be possible. So it is probably an assignment.
You will need to crack the network into 8 pieces to start. One guy will get 4 pieces, the next guy gets 3 pieces, and the last guy only gets one piece. The guy with 4 pieces can get all 4 folded back into a single CIDR spec. Not's not the case with the guy who gets 3 pieces. You can fold his first two back together, but then he a final separate piece. That's the way it has to be. The guy with one piece has nothing to fold.
To split a network 50-25-25 we need to crack it into 4 pieces. That way we can give 2 pieces to the one big guy and then the little guys get one piece each. Notice that 4 is a power of two. It's gotta be that way. If these 3 guys each wanted one third of the network we would be outta luck.
The guy with two pieces can fold them together (or aggregate) them. To do that he needed either the first two or the second two pieces. You can't just give him any random selection.
The 4 way split involved added two more 1-bits's to the subnet mask.
That 4-3-1 split you ask about happens to be possible. So it is probably an assignment.
You will need to crack the network into 8 pieces to start. One guy will get 4 pieces, the next guy gets 3 pieces, and the last guy only gets one piece. The guy with 4 pieces can get all 4 folded back into a single CIDR spec. Not's not the case with the guy who gets 3 pieces. You can fold his first two back together, but then he a final separate piece. That's the way it has to be. The guy with one piece has nothing to fold.|
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LEARN ABOUT SUSE
drop_text_search_template
DROP TEXT SEARCH
TEMPLATE(7) SQL Commands DROP TEXT SEARCH TEMPLATE(7) NAME
DROP TEXT SEARCH TEMPLATE - remove a text search template SYNOPSIS
DROP TEXT SEARCH TEMPLATE [ IF EXISTS ] name [ CASCADE | RESTRICT ] DESCRIPTION
DROP TEXT SEARCH TEMPLATE drops an existing text search template. You must be a superuser to use this command. PARAMETERS
IF EXISTS Do not throw an error if the text search template does not exist. A notice is issued in this case. name The name (optionally schema-qualified) of an existing text search template. CASCADE Automatically drop objects that depend on the text search template. RESTRICT Refuse to drop the text search template if any objects depend on it. This is the default. EXAMPLES
Remove the text search template thesaurus: DROP TEXT SEARCH TEMPLATE thesaurus; This command will not succeed if there are any existing text search dictionaries that use the template. Add CASCADE to drop such dictionar- ies along with the template. COMPATIBILITY
There is no DROP TEXT SEARCH TEMPLATE statement in the SQL standard. SEE ALSO
ALTER TEXT SEARCH TEMPLATE [alter_text_search_template(7)], CREATE TEXT SEARCH TEMPLATE [create_text_search_template(7)] SQL - Language Statements 2010-05-14 DROP TEXT SEARCH TEMPLATE(7)