Conference azur::mcc

5417.0. "Rate limiting on DB620" by CSC32::D_SHAVEY () Mon Aug 02 1993 15:32

        Problem:
    
        MCC V1.3
        DECbridge 620 (with microcode 1.3)
        dec_elan_27 mib is compiled
    
        As per the Release Notes for the DECbridge 500/600 series,
    	microcode version 1.3, it states on page 4:
    
        o Rate limiting - Multicast and Broadcast frames forwarded by the
        bridge can  be rate limited.  You can set (enable) the rate limit
        threshold (in packets per second) using SNMP.  The default rate
    	limit threshold is 400 packets per second.  You can specify rate-limited
        frames by address or protocol (Enet p-type, DSAP or PID).  
    	Rate-limited frames are counted and read using the appropriate objects
    	in the	DEC Vendor MIB.  Rate limiting is disabled when shipped from the
    	factory.
      
       I, and a customer are able to enter in the example A in the release
        notes:
    
        Example A
        ---------
        Configure a DECbridge 500 Series bridge to forward no more than 500
        packets per second having the multicast address 09-00-2b-ff-ff-ff
    	in the destination field.
    
        1.Set the rate limit value to 500:
    
        > SNMP SET ebrRateLimit_0 to 500
    
        2.Set status of address 09-00-2b-ff-ff-ff to rateLimit  Note: In
        general,   addresses expressed in hexadecimal are converted to
    	decimal when embedding   them in SNMP OIDs:
     
        > SNMP SET ebrTwoPortStatus_9.0.43.255.255.255.0 to 7
    
        3.Enable rate limiting feature:
    
        > SNMP SET ebrRateLimitSwitch_0 to 1
    
        But, when we try to enter in an already known static entry, we get
        an error of:
    
        attribute not available
    
        Also, can the all F's be put in for rate limiting, as I got the
        attribute not available on it also.
     
        Is it possible to partial wildcard multicast entries?
    
        ie: 09002b*
    
        Thank you
    
        Darrell Shavey
        CSC32::D_SHAVEY
        DTN 592-4712