If you are using OSA interface, you may want to consider an MTU of 9,000.
On NIC/1-G ethernet cards, 9,000 is the recommended value.
I also had the same problem with my zebra/ospfd+dummy and the network guys
did not want to change the router's MTU to 9000 so I live with 1500.
It is early for me to tell if it is rock solid but I realize that my entire
network connection to my zLinux now depends on how stable zebra/ospfd
proves to be.

Regards,

[EMAIL PROTECTED]
NCCI
Boca Raton, Florida
561.893.2415
greetings / avec mes meilleures salutations / Cordialmente
mit freundlichen Gr��en / Med v�nlig h�lsning


                                                                                
                                                 
                      Max                                                       
                                                 
                      <[EMAIL PROTECTED]        To:       
[email protected]                                                 
                      .it>                     cc:                              
                                                 
                      Sent by: Linux on        Subject:  MTU consideration for 
dummy/eth interfaces                              
                      390 Port                                                  
                                                 
                      <[EMAIL PROTECTED]                                        
                                                  
                      IST.EDU>                                                  
                                                 
                                                                                
                                                 
                                                                                
                                                 
                      06/09/2005 04:35                                          
                                                 
                      AM                                                        
                                                 
                      Please respond to                                         
                                                 
                      Linux on 390 Port                                         
                                                 
                                                                                
                                                 
                                                                                
                                                 




Guys,
I've configured two ethernet interfaces with a dummy
interface in order to have an High Availability
network. I'm using Zebra for dynamic routing.
I was able to work with this system only changing the
ethernet MTU from 1492 (Linux default) to 1500...
Seems related to my router configuration (4507)...
Do you think that I can experience some problem with
1500 MTU size or I need to change some value on router
for compatibility with zLinux systems?
Ciao
Max







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