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AIX 5.1 Routing issue

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KPKIND

Technical User
Sep 8, 2003
130
IN
Hi,

I have got a strange problem on a box with AIX5.1 ML 03. The problem is that when I am trying to reach a host(In this case a service ip label kept highly available by HACMP a different server), it does not go through. But if I add a route manually using the same gateway (the default one on the system) it goes through. I was wondering if anyone out there have experienced such issues.


My routing table has the default gate with flags UGc, I know that the 'c' flag creates a cloned route for each host it communicates with, b'coz of this my routing table is become very big. I have few other systems where the c flag is not set, what should I do if I want to take this c flag out. The tcpip parameters for both the systems ( where c is set and where c is not set are same)

udp_pmtu_discover = 1
tcp_pmtu_discover = 1

If we disable the above parameters I know the c flag would get disappeared, but I was wondering when it is enabled on both the system, why one of the servers has the c flag and another does not have. It would be great if someone can clarify on both these issues.

TIA
KPKIND
 
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