[c-nsp] Would millions of TxPause mean my 6500 is too slow?

[Sukumar Subburayan (sukumars)]

You are most likely oversubscribing the 6548-GE linecard (this card is
8:1 oversubscribed).
This card is not designed for attaching your high bandwidth devices.


If you turn off 'Tx' flowcontrol, you will probably start seeing
indiscards, which is indicative of oversubscription.

You probably should consider spreading some  high-bandwidth devices
across multiple linecards, or better look at other options (like a
Sup720 with 67xx linecards etc..)



sukumar
  

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Deny IP Any Any
Sent: Monday, March 17, 2008 7:11 AM
To: cisco-nsp at puck.nether.net
Subject: [c-nsp] Would millions of TxPause mean my 6500 is too slow?

I have a 6506 with a Sup2 running in Hybrid (7.6/12.1) mode. It has a
X6548-GE-TX, with many high-bandwidth devices on it. I am not seeing any
interface errors, and nothing but zero's in a 'show asicreg port
pinnacle err', however, I am getting millions (per day) of flowcontrol
TxPause frames on some of my ports.  Does this mean I am overflowing the
(limited) buffers on the 6548 card, or perhaps overworking the sup
itself?

Dal-6506> show port flowcontrol 4/13

Port  Send FlowControl  Receive FlowControl   RxPause    TxPause
      admin    oper     admin     oper
----- -------- -------- --------- ---------   ---------- ----------
 4/13 desired  on       desired   on          0          13826794
Dal-6506> show port flowcontrol 4/16

Port  Send FlowControl  Receive FlowControl   RxPause    TxPause
      admin    oper     admin     oper
----- -------- -------- --------- ---------   ---------- ----------
 4/16 desired  on       desired   on          0          11608252


--
deny ip any any (4393649193 matches)
_______________________________________________
cisco-nsp mailing list  cisco-nsp at puck.nether.net
https://puck.nether.net/mailman/listinfo/cisco-nsp
archive at http://puck.nether.net/pipermail/cisco-nsp/