-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Andy B. wrote: > On Wed, Feb 10, 2010 at 7:48 PM, David Freedman > <[email protected]> wrote: >> So, are you checking your interfaces for incrementing drop/error counters? >> >> Are you seeing any of this when there is the problem occuring? >> (clear counters , sh int summ etc..) >> > > I am having input drops all the time, no matter how high or low I set > the incoming hold-queue. > > The OSPF and IBGP interfaces approx. 30 minutes after I cleared the counters: > > TenGigabitEthernet8/1 is up, line protocol is up (connected) > Input queue: 0/2000/622/622 (size/max/drops/flushes); Total output drops: 0 > > TenGigabitEthernet9/1 is up, line protocol is up (connected) > Input queue: 0/4096/1664/1664 (size/max/drops/flushes); Total output drops: > 0 > > TenGigabitEthernet9/2 is up, line protocol is up (connected) > Input queue: 0/4096/1916/1916 (size/max/drops/flushes); Total output drops: > 0 > > > These links are not congested! Te9/1 is the busiest with maybe 6.5 out > of 10 Gig. The other two are below 5 Gig.
Are these supervisor ports or on a card (i.e 6704/6708?) Things I would check: - - That I understand 6704 has pathetically small per port buffers - - Hold queue input appropriate (for punt to MSFC), usually set to 4096 for these - - No IGP hello padding (if you have large MTU and pad then you must punt these big things - - Check SPD headroom (show ip spd) - - The drops are not being reported on input due to lack of transmit buffer on output (i.e to lower speed card), check traffic flows/pps to low speed interfaces and adjust buffers appropriately Dave. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAktzBVEACgkQtFWeqpgEZrIB+QCeKT5sqezBtRp5DWXD71VwH6Ke tJUAnRyC67nIKx1NpYBB+g+854TtBUq3 =g6FU -----END PGP SIGNATURE----- _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
