[nsp] 6506 strange problem

[Edward Henigin]

On Wed, Apr 28, 2004 at 07:46:43PM +0700, Hayri said:
> Hello all,
> 
> I have cat6506/Sup720 with SFM-capable 48 port 10/100/1000mb RJ45 Module
> installed on Slot 1. 
> I used hybrid ios s72033-psv-mz.122-17d.SXB and it is running good (no
> error msg at booting).
> The plan for this stuff is it to interconnecting core layer routers and
> distribution routers using separate vlan and ospf.
> 
> I have about 15 routers on distribution layer and 2 core layer router.
> The traffic in/out from each dist routers member is average. The higest
> traffic is 40 Mega on the peak hour on 2 or 3 routers. The rest are
> about 10 Mega at the peak hour.

Do you mean 40,000,000 bits per second (40Mbps), or do you mean
40,000,000,000 bits per second (40Gbps)?  40Mbps is VERY low traffic
levels for the sup720/WS-X6748-GE-TX.  You could easily do that on
sup1a-MSFC with WS-X6348-RJ-45 or similar.


> The interfaces looks ok. No CRC, no i/o error. But one thing i notice is
> the input and output rate cannot reach more than 20 Mega on several
> ports. Including ports which serving core routers.

Look for input & output drops or discards on all interfaces, using
'show int'.  Research performance tuning on the sup720, there may
be some MLS-type settings you may need to tweak.

Good luck.

Ed