routing performance issue.

[Jagadesh_2]

Hi All,


I have the default route of 10.114.19.161

The routing table on the server shows:
Route Tree for Protocol Family 2 (Internet):
default 10.114.19.161 UGc 0 0 en0 - -
10.1.3.102 10.114.19.161 UGHW 1 889 en0 1500 -
..
10.114.17.164 10.114.19.161 UGHW 6 275903 en0 1500 -
10.114.19.160 10.114.19.183 UHSb 0 0 en0 - - =>
10.114.19.160/27 10.114.19.183 U 76 7253 en0 - -

My collegue is suggesting the following points. Please let me know whether this routing table will reduce the performance or not. If yes how can i make all the packets to go via default route.


Traffic is going via 10.114.19.183 to 10.114.19.160 static route not via the default route.
This will slow down performance.
TCP/IP routing needs to be reviewed.

[Mel Burslan]

there is not enough data even to guess if what he says has any truth in it or not.

The questions need to be answered :

do you have 2 lan interfaces with 2 different ip addresses and bith in separate subnets ?

are they of the same speed ?

are the switch ports across these interfaces configured with right sipeed/duplex settings.

how much traffic is flowing thru the static route ? Is it something like a network backup interface with high throughput or onesy-twosy access interface ?

And if you want to route every packet using the default route (in some cases, like network backup, this is a very bad idea as it chokes all other applications' net access) you can delete the static route as follows:

route delete 10.114.19.160 10.114.19.183

since the packets destined to 10.114.19.160 has no other place to go anymore, they will jump on the default route.

Hope this helps.

[RAC_1]

traceroute "destination_ip"

What path does it take?? If a destination can be reached through two paths, it will take that apears first in the routing table.

As you have explcit path for destination 10.114.19.160 through 10.114.19.183, it will take and nothing else.

Delete that route and it will go through default route.

[Jagadesh_2]

There are three interface cards but only one is active now.
en0: flags=5e080863,80
inet 10.114.19.183 netmask 0xffffffe0 broadcast 10.114.19.191
Media Speed Running: 100 Mbps Full Duplex

Please find the network statistics attached along with this.

Please let me know is this routing table okay / any issues with the routing table. This is working fine for years and the users are facing performance problem now.. almost the same is resolved by tuning the application as well as the system parameters and swap. Still they have some questions on routing.

Thanks

[RAC_1]

timex traceroute -g 10.114.19.183 10.114.19.160

timex traceroute -g 10.114.19.161 10.114.19.160

Which one takes more??