Re: SUMMARY: using SPARCstation IPC as gateway?

From: Barry Margolin (
Date: Tue Sep 08 1992 - 10:54:10 CDT

In article <> (Andreas Luik) writes:
>o The SPARC should have enough memory because swapping will degrade
> net performance significantly
>o To ensure that the routed gets enough CPU, no real work should be
> done on the machine. NFS service will be OK, but makes or so will make
> routing slow (and renicing routed seems not to help).

Unless you have a complex network, routed will only run a few times a
minute. Routed isn't involved in the actual routing of packets, it merely
broadcasts and updates the routing table.

This is probably also relevant to the memory requirements. Renicing routed
probably doesn't help because nice doesn't keep a process from being
swapped out. If your network is simple enough that routed isn't forced to
run very often, it may get swapped out after each iteration, and it will
have to page back in when its timer goes off again.

>I'm not sure yet, but I think I'll wait until the budget allows us to
>buy a bridge.

If you were considering using the Sun as a router, why not go for a real
router rather than just a bridge?

Barry Margolin
System Manager, Thinking Machines Corp. {uunet,harvard}!think!barmar

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