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aix重复路由导致丢包问题解决

2013-03-06 13:07 288 查看
# netstat -rn
Routing tables
Destination
Gateway Flags Refs Use If Exp Groups
Route Tree for Protocol Family 2 (Internet):
default
192.168.128.254 UG 0 980 en1 - - =>
default
*.*.2.254 UGS 3 160261 en0 - -

*.*.2.0
*.*.2.21 UHSb 0 0 en0 - - =>
*.*.2.0
*.*.2.23 UHSb 0 0 en6 - - =>
*.*.2/24
*.*.2.21 U 2 6040225 en0 - - =>
*.*.2/24
*.*.2.23 U 0 5964988 en6 - -
*.*.2.21
127.0.0.1 UGHS 2 2965333 lo0 - -
*.*.2.23
127.0.0.1 UGHS 2 56987242 lo0 - -
*.*.2.255
*.*.2.21 UHSb 0 4 en0 - - =>
*.*.2.255
*.*.2.23 UHSb 0 0 en6 - -
127/8
127.0.0.1 U 5 40545 lo0 - -
172.16.1.0
172.16.1.10 UHSb 0 0 en0 - - =>
172.16.1/24
172.16.1.10 U 0 51979 en0 - -
172.16.1.10
127.0.0.1 UGHS 0 7254 lo0 - -
172.16.1.255
172.16.1.10 UHSb 0 28 en0 - -
172.16.2.0
172.16.2.10 UHSb 0 0 en6 - - =>
172.16.2/24
172.16.2.10 U 2 49507 en6 - -
172.16.2.10
127.0.0.1 UGHS 1 15813 lo0 - -
172.16.2.255
172.16.2.10 UHSb 2 169 en6 - -
192.168.128.0
192.168.128.20 UHSb 0 0 en1 - - =>
192.168.128/24
192.168.128.20 U 0 3075 en1 - -
192.168.128.20
127.0.0.1 UGHS 0 67 lo0 - -
192.168.128.255
192.168.128.20 UHSb 0 4 en1 - -

# route delete -if en1 default 192.168.128.254
192.168.128.254 net default: gateway 192.168.128.254
下面再ping就ok了
参考下面的文档:
如何删除重复的默认路由?

  问题描述:

  客户经常碰到产生两条默认路由,并且两条路由的IP地址完全一样只有最后的接口不一样。下文将介绍如何删除多余的默认路由。
  netstat –rn

  Routing tables

  Destination Gateway Flags Refs Use If PMTU Exp Groups
  Route Tree for Protocol Family 2 (Internet):

  default 172.16.18.1 UGc 0 0 en2 - - - =>

  default 172.16.18.1 UGc 0 0 en1 - - -

  9/8 172.16.18.1 UGc 0 0 en2 - - -

  9.181.49.76 172.16.18.1 UGHW 1 772 en2 1500 - -

  9.181.49.136 172.16.18.1 UGHW 1 272 en2 1500 - -

  9.181.49.146 172.16.18.1 UGHW 1 49 en2 1500 - -

  9.181.50.88 172.16.18.1 UGHW 2 489 en2 1500 - -

  9.181.50.89 172.16.18.1 UGHW 3 59144 en2 1500 - -

  9.181.50.92 172.16.18.1 UGHW 1 234 en2 1500 - -

  .......

  HA_node2:/etc>lsattr -El inet0

  authm 65536 Authentication Methods True

  bootup_option no Use BSD-style Network Configuration True

  gateway Gateway True

  hostname HA_node2 Host Name True

  rout6 IPv6 Route True

  route net,-hopcount,0,,-if,en1,,0,172.16.18.1 Route True

  route net,-hopcount,0,,-if,en2,,0,172.16.18.1 Route True
  上面重复的两条默认路由除了可以通过Flush Route Table

  的方法删除之外,还可以用如下方法删除。
  1.
通过route delete
删除kernel
中的route 信息:

  HA_node2:/>route delete -if en1 default 172.16.18.1

  172.16.18.1 net default: gateway 172.16.18.1
  HA_node2:/>netstat -rn

  Routing tables

  Destination Gateway Flags Refs Use If PMTU Exp Groups
  Route Tree for Protocol Family 2 (Internet):

  default 172.16.18.1 UGc 0 0 en2 - - -

  9/8 172.16.18.1 UGc 0 0 en2 - - -

  9.181.49.76 172.16.18.1 UGHW 1 772 en2 1500 - -

  9.181.49.136 172.16.18.1 UGHW 1 272 en2 1500 - -

  9.181.49.146 172.16.18.1 UGHW 1 49 en2 1500 - -

  9.181.50.88 172.16.18.1 UGHW 2 489 en2 1500 - -

  9.181.50.89 172.16.18.1 UGHW 3 59144 en2 1500 - -

  9.181.50.92 172.16.18.1 UGHW 1 234 en2 1500 - -

  ……

  从上的结果可以看出,kernel中的重复default route
已经被删除。

  但是从下面的结果可以看到,odm中的default route
仍然存在。

  HA_node2:/etc>lsattr -El inet0

  authm 65536 Authentication Methods True

  bootup_option no Use BSD-style Network Configuration True

  gateway Gateway True

  hostname HA_node2 Host Name True

  rout6 IPv6 Route True

  route net,-hopcount,0,,-if,en1,,0,172.16.18.1 Route True

  route net,-hopcount,0,,-if,en2,,0,172.16.18.1 Route True
  2.通过chdev
删除odm中的route
信息:
  HA_node2:/>chdev -l inet0 -a delroute=net,-hopcount,0,,-if,en1,,0,172.16.18.1

  inet0 changed
  HA_node2:/etc>lsattr -El inet0

  authm 65536 Authentication Methods True

  bootup_option no Use BSD-style Network Configuration True

  gateway Gateway True

  hostname HA_node2 Host Name True

  rout6 IPv6 Route True

  route net,-hopcount,0,,-if,en2,,0,172.16.18.1 Route True
  HA_node2:/>netstat –rn

  Routing tables

  Destination Gateway Flags Refs Use If PMTU Exp Groups
  Route Tree for Protocol Family 2 (Internet):

  default 172.16.18.1 UGc 0 0 en2 - - -

  9/8 172.16.18.1 UGc 0 0 en2 - - -

  9.181.49.76 172.16.18.1 UGHW 1 772 en2 1500 - -

  9.181.49.136 172.16.18.1 UGHW 1 272 en2 1500 - -

  9.181.49.146 172.16.18.1 UGHW 1 49 en2 1500 - -

  9.181.50.88 172.16.18.1 UGHW 2 489 en2 1500 - -

  9.181.50.89 172.16.18.1 UGHW 3 59144 en2 1500 - -

  9.181.50.92 172.16.18.1 UGHW 1 234 en2 1500 - -

  ......

  执行chdev
删除默认路由之后,odm库和kernel中的多余默认路由都被删除。
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