Hello! On Tue, May 15, 2012 at 03:17:36PM +0100, Alex Arseniev wrote: > Hello there, > This might help > http://www.juniper.net/techpubs/en_US/junos12.1/topics/concept/source-class-usage-guidelines-solution.html > <quote> > A source or destination class is applied to a packet only once during the > routing table lookup. When a network prefix matches a class-usage policy, > SCU is assigned to packets first; DCU is assigned only if SCU has not been > assigned. Be careful when using both class types, since misconfiguration can > result in uncounted packets. > </quote> > Rgds > Alex
I believe that there is no misconfiguration. http://www.juniper.net/techpubs/en_US/junos12.1/topics/concept/source-class-usage-options-junos-nm.html "Source class usage (SCU) counts packets sent to customers by performing lookups on the IP source address and the IP destination address. SCU makes it possible to track traffic originating from specific prefixes on the provider core and destined for specific prefixes on the customer edge. You must enable SCU accounting on both the inbound and outbound physical interfaces. Destination class usage (DCU) counts packets from customers by performing lookups of the IP destination address. DCU makes it possible to track traffic originating from the customer edge and destined for specific prefixes on the provider core router." Thus I configured SCU input on upstream's interface: minot...@br1-gdr.ki# show interfaces ge-2/0/0 unit 200 family inet accounting source-class-usage { input; } ... and SCU output and DCU on customer's interface: minot...@br1-gdr.ki# show interfaces ae0 unit 753 family inet accounting source-class-usage { output; } destination-class-usage; I tried to remove source-class-usage output from customer's interface but this does not help, counters are zeroes: minot...@br1-gdr.ki# run show interfaces ae0.753 extensive Logical interface ae0.753 (Index 97) (SNMP ifIndex 197) (Generation 168) Flags: SNMP-Traps 0x4000 VLAN-Tag [ 0x8100.753 ] Encapsulation: ENET2 Statistics Packets pps Bytes bps Bundle: Input : 2130221797 20055 2875832668346 232302248 Output: 911861056 7149 65210099204 3518416 Link: ge-2/0/5.753 Input : 2130221797 20055 2875832668346 232302248 Output: 911861056 7149 65210099204 3518416 Marker Statistics: Marker Rx Resp Tx Unknown Rx Illegal Rx ge-2/0/5.753 0 0 0 0 Protocol inet, MTU: 1500, Generation: 198, Route table: 6 Flags: No-Redirects, DCU Packets Bytes Destination class (packet-per-second) (bits-per-second) to-Other 17433 1679155 ( 19) ( 9556) to-Peering 20064858 29583263192 ( 24066) ( 282133926) to-Upstream 0 0 ( 0) ( 0) Output Filters: bw-100M-U-ae0.753-o, Addresses, Flags: Is-Preferred Is-Primary Destination: 109.68.41.132/30, Local: 109.68.41.133, Broadcast: 109.68.41.135, Generation: 177 Protocol multiservice, MTU: Unlimited, Generation: 199, Route table: 6 Policer: Input: __default_arp_policer__ -- MINO-RIPE _______________________________________________ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp
