[nsp] ATM MTU performance tuning

From: Francois Baligant (francois@ops.be.wanadoo.com)
Date: Thu Nov 22 2001 - 19:01:15 EST

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        The output analyzer on the Cisco web site stress out
        that the default MTU on ATM interface and subinterface
        should be changed from the default to a much smaller
        value (1500 sounds like a good candidate) because
        smaller MTU allows for more MEMD buffers and so
        better performance.

        Can anyone comment on this ? Is there a real performance
        gain ? Is this true for 7200 and VIP4 or only older
        4500 with ATM NPM ?

regards,
Francois

Francois Baligant _ Wanadoo Belgium NV/SA, Network Operation Center ( ) a subsidiary of France Telecom /_\/ Lozenberg 22 - B-1932 Zaventem francois@be.wanadoo.com (__/\ tel: +32 2 717 17 17 FB1-6BONE FB3122-RIPE fax: +32 2 717 17 77

- "if you hold a unix shell to your ear, do you hear the c?"

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