请教各位老大，有没有用过Freebsd中的aggregate 程序的，我实在是弄不明白了。。。

regodme

这几天有个很重的活，就是要把上千条路由做聚合，手工做非吐血不可。我在freebsd的port中找到了这个aggregate 程序，可以用来对多个IP网段进行自动聚合，但我太笨了，一直没有弄出运行结果来，在google、baidu、yahoo上搜遍了，都是man aggregate 请各位大哥帮帮忙，看看如何使用这个东西。先表示感谢。


man aggregate

AGGREGATE(1)                                                      AGGREGATE(1)



NAME
       aggregate  -  optimise a list of route prefixes to help make nice short
       filters


SYNOPSIS
       aggregate [-m max-length] [-o max-opt-length] [-p default-length]  [-q]
       [-t] [-v]


DESCRIPTION
       Takes  a list of prefixes in conventional format on stdin, and performs
       two optimisations to attempt to reduce the length of the prefix list.

       The first optimisation is to remove any  supplied  prefixes  which  are
       superfluous  because they are already included in another supplied pre-
       fix. For example, 203.97.2.0/24 would be removed if  203.97.0.0/17  was
       also supplied.

       The  second  optimisation identifies adjacent prefixes that can be com-
       bined under a single, shorter-length prefix. For example, 203.97.2.0/24
       and 203.97.3.0/24 can be combined into the single prefix 203.97.2.0/23.


OPTIONS
       -m max-length
              Sets the maximum prefix  length  for  entries  read  from  stdin
              max_length bits. The default is 32. Prefixes with longer lengths
              will be discarded prior to processing.

       -o max-opt-length
              Sets the maximum prefix  length  for  optimisation  to  max-opt-
              length  bits.  The  default  is 32. Prefixes with longer lengths
              will not be subject to optimisation.

       -p default-length
              Sets the default prefix length. There  is  no  default;  without
              this  option  a  prefix  without  a  mask  length  is treated as
              invalid.  Use -p 32 -m 32 -o 32 to  aggregate  a  list  of  host
              routes specified as bare addresses, for example.

       -q     Sets quiet mode -- instructs aggregate never to generate warning
              messages or other output on stderr.

       -t     Silently truncate prefixes that seem  to  have  an  inconsistent
              prefix:  e.g. an input prefix 203.97.2.226/24 would be truncated
              to  203.97.2.0/24.  Without  this   option   an   input   prefix
              203.97.2.226/24  would  not be accepted, and a warning about the
              inconsistent mask would be generated.

       -v     Sets verbose mode. This changes the output format to display the
              source  line  number that the prefix was obtained from, together
              with a preceding "-" to indicate a route that can be suppressed,
              or  a  "+" to indicate a shorter-prefix aggregate that was added
              by aggregate as an adjacency  optimisation.  Note  that  verbose
              output continues even if -q is selected.

DIAGNOSTICS
       Aggregate exits 0 on success, and >0 if an error occurs.

EXAMPLES
       The following list of prefixes:

         193.58.204.0/22
         193.58.208.0/22
         193.193.160.0/22
         193.193.168.0/22
         193.243.164.0/22
         194.126.128.0/22
         194.126.132.0/22
         194.126.134.0/23
         194.151.128.0/19
         195.42.240.0/21
         195.240.0.0/16
         195.241.0.0/16

       is optimised as followed by aggregate (output shown using the -v flag):

         aggregate: maximum prefix length permitted will be 24
         [    0] + 193.58.204.0/21
         [    1] - 193.58.204.0/22
         [    2] - 193.58.208.0/22
         [    3]   193.193.160.0/22
         [    4]   193.193.168.0/22
         [    5]   193.243.164.0/22
         [    0] + 194.126.128.0/21
         [    6] - 194.126.128.0/22
         [    7] - 194.126.132.0/22
         [    8] - 194.126.134.0/23
         [    9]   194.151.128.0/19
         [   10]   195.42.240.0/21
         [    0] + 195.240.0.0/15
         [   11] - 195.240.0.0/16
         [   12] - 195.241.0.0/16

       Note that 193.58.204.0/22 and 193.58.208.0/22 were combined  under  the
       single  prefix  193.58.204.0/21,  and  194.126.134.0/23  was suppressed
       because it was included  in  194.126.132.0/22.  The  number  in  square
       brackets at the beginning of each line indicates the original line num-
       ber, or zero for new prefixes that were introduced by aggregate.

       The output without the -v flag is as follows:

         193.58.204.0/21
         193.193.160.0/22
         193.193.168.0/22
         193.243.164.0/22
         194.126.128.0/21
         194.151.128.0/19
         195.42.240.0/21
         195.240.0.0/15

SEE ALSO
       aggregate-ios(1)

HISTORY
       Aggregate was written by Joe Abley <jabley@mfnx.net>, and has been rea-
       sonably  well  tested. It is suitable for reducing customer prefix fil-
       ters for production use without extensive hand-proving of results.

       Autoconf     bits     were     donated     by      Michael      Shields
       <michael.shields@mfn.com>.   The -t option was suggested by Robin John-
       son <robbat2@fermi.orbis-terrarum.net>, and the  treatment  of  leading
       zeros  on octet parsing was changed following comments from Arnold Nip-
       per <arnold@nipper.de>.

       An early version of aggregate would attempt to  combine  adjacent  pre-
       fixes  regardless of whether the first prefix lay on an appropriate bit
       boundary or not (pointed out with  great  restraint  by  Robert  Noland
       <rnoland@2hip.net>.

BUGS
       Common unix parsing of IPv4 addresses understands the representation of
       individual octets in octal or hexadecimal, following a "0" or "0x" pre-
       fix, respectively. That convention has been deliberately disabled here,
       since resources such as the IRR do not follow the convention, and  con-
       fusion can result.

       For  extremely  sensitive  applications, judicious use of the -v option
       together with a pencil and paper is probably advisable.




Joe Abley                       2001 November 2                   AGGREGATE(1)
AGGREGATE(1)                                                      AGGREGATE(1)



NAME
       aggregate  -  optimise a list of route prefixes to help make nice short
       filters


SYNOPSIS
       aggregate [-m max-length] [-o max-opt-length] [-p default-length]  [-q]
       [-t] [-v]


DESCRIPTION
       Takes  a list of prefixes in conventional format on stdin, and performs
       two optimisations to attempt to reduce the length of the prefix list.

       The first optimisation is to remove any  supplied  prefixes  which  are
       superfluous  because they are already included in another supplied pre-
       fix. For example, 203.97.2.0/24 would be removed if  203.97.0.0/17  was
       also supplied.

       The  second  optimisation identifies adjacent prefixes that can be com-
       bined under a single, shorter-length prefix. For example, 203.97.2.0/24
       and 203.97.3.0/24 can be combined into the single prefix 203.97.2.0/23.


OPTIONS
       -m max-length
              Sets the maximum prefix  length  for  entries  read  from  stdin
              max_length bits. The default is 32. Prefixes with longer lengths
              will be discarded prior to processing.

       -o max-opt-length
              Sets the maximum prefix  length  for  optimisation  to  max-opt-
              length  bits.  The  default  is 32. Prefixes with longer lengths
              will not be subject to optimisation.

       -p default-length
              Sets the default prefix length. There  is  no  default;  without
              this  option  a  prefix  without  a  mask  length  is treated as
              invalid.  Use -p 32 -m 32 -o 32 to  aggregate  a  list  of  host
              routes specified as bare addresses, for example.

       -q     Sets quiet mode -- instructs aggregate never to generate warning
              messages or other output on stderr.

       -t     Silently truncate prefixes that seem  to  have  an  inconsistent
              prefix:  e.g. an input prefix 203.97.2.226/24 would be truncated
              to  203.97.2.0/24.  Without  this   option   an   input   prefix
              203.97.2.226/24  would  not be accepted, and a warning about the
              inconsistent mask would be generated.

       -v     Sets verbose mode. This changes the output format to display the
              source  line  number that the prefix was obtained from, together
              with a preceding "-" to indicate a route that can be suppressed,
              or  a  "+" to indicate a shorter-prefix aggregate that was added
              by aggregate as an adjacency  optimisation.  Note  that  verbose
              output continues even if -q is selected.

DIAGNOSTICS
       Aggregate exits 0 on success, and >0 if an error occurs.

EXAMPLES
       The following list of prefixes:

         193.58.204.0/22
         193.58.208.0/22
         193.193.160.0/22
         193.193.168.0/22
         193.243.164.0/22
         194.126.128.0/22
         194.126.132.0/22
         194.126.134.0/23
         194.151.128.0/19
         195.42.240.0/21
         195.240.0.0/16
         195.241.0.0/16

       is optimised as followed by aggregate (output shown using the -v flag):

         aggregate: maximum prefix length permitted will be 24
         [    0] + 193.58.204.0/21
         [    1] - 193.58.204.0/22
         [    2] - 193.58.208.0/22
         [    3]   193.193.160.0/22
         [    4]   193.193.168.0/22
         [    5]   193.243.164.0/22
         [    0] + 194.126.128.0/21
         [    6] - 194.126.128.0/22
         [    7] - 194.126.132.0/22
         [    8] - 194.126.134.0/23
         [    9]   194.151.128.0/19
         [   10]   195.42.240.0/21
         [    0] + 195.240.0.0/15
         [   11] - 195.240.0.0/16
         [   12] - 195.241.0.0/16

       Note that 193.58.204.0/22 and 193.58.208.0/22 were combined  under  the
       single  prefix  193.58.204.0/21,  and  194.126.134.0/23  was suppressed
       because it was included  in  194.126.132.0/22.  The  number  in  square
       brackets at the beginning of each line indicates the original line num-
       ber, or zero for new prefixes that were introduced by aggregate.

       The output without the -v flag is as follows:

         193.58.204.0/21
         193.193.160.0/22
         193.193.168.0/22
         193.243.164.0/22
         194.126.128.0/21
         194.151.128.0/19
         195.42.240.0/21
         195.240.0.0/15

SEE ALSO
       aggregate-ios(1)

HISTORY
       Aggregate was written by Joe Abley <jabley@mfnx.net>, and has been rea-
       sonably  well  tested. It is suitable for reducing customer prefix fil-
       ters for production use without extensive hand-proving of results.

       Autoconf     bits     were     donated     by      Michael      Shields
       <michael.shields@mfn.com>.   The -t option was suggested by Robin John-
       son <robbat2@fermi.orbis-terrarum.net>, and the  treatment  of  leading
       zeros  on octet parsing was changed following comments from Arnold Nip-
       per <arnold@nipper.de>.

       An early version of aggregate would attempt to  combine  adjacent  pre-
       fixes  regardless of whether the first prefix lay on an appropriate bit
       boundary or not (pointed out with  great  restraint  by  Robert  Noland
       <rnoland@2hip.net>.

BUGS
       Common unix parsing of IPv4 addresses understands the representation of
       individual octets in octal or hexadecimal, following a "0" or "0x" pre-
       fix, respectively. That convention has been deliberately disabled here,
       since resources such as the IRR do not follow the convention, and  con-
       fusion can result.

       For  extremely  sensitive  applications, judicious use of the -v option
       together with a pencil and paper is probably advisable.




Joe Abley                       2001 November 2                   AGGREGATE(1)
root[/root]#

regodme

自己顶一下