Cisco Pix interface stats frame?

ro8inmorgan
ro8inmorgan used Ask the Experts™
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What does frame mean in a Cisco Pix show interface command

interface gb-ethernet1 "outside" is up, line protocol is up
  Hardware is i82543 rev02 gigabit ethernet, address is 000e.0c2b.d38d
  IP address 213.189.10.14, subnet mask 255.255.255.0
  MTU 1500 bytes, BW 1 Gbit full duplex
        1439790177 packets input, 309908613728 bytes, 1468 no buffer
        Received 2390053 broadcasts, 0 runts, 0 giants
        0 input errors, 0 CRC, 41518321 frame, 0 overrun, 0 ignored, 0 abort
        2184913186 packets output, 2157088716664 bytes, 0 underruns
        input queue (curr/max blocks): hardware (0/25) software (0/0)
        output queue (curr/max blocks): hardware (0/256) software (0/0)


I got lots of it on this interface but on the rest it is 0.. Im investigating a packet loss problem is this frame a problem??

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This indicates the number of packets received having a CRC error and a non-integer number of octets. On a LAN, this is usually the result of collisions or a malfunctioning Ethernet device.

I would try monitoring the level of frame errors over time. If they are increasing, try swapping interfaces and/or ports to identify the problem.  You could possibly try a different switch port to connect the PIX outside interface to...I don't think you can hard code the Gigabit ports to 1000full, and I don't have a PIX 525 to try it on, but if you could I would say that collisions could be caused by either the outside interface or the switch port it is connected to not being set the same (either auto or 1000full)...

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Commented:
hmmm i indeed stopped the frame errors by setting my pix outside interface to hard coded 1000
and the packet loss became much less, but still not completly gone.. I have now an acceptable packet loss rate.. altough i want to go for 0% packet loss any other ideas what can causing the remaining packet loss??
Do you have flow control enabled on the switch port that the PIX interface is connected to?  Try changing whatever setting it is currently set to and see if the issue gets better or worse.  Don't know for sure if this will help but it's worth a shot...

Author

Commented:
ok it was on off i turned it now on.

at catalyst 3750 i can only enable or disable receive flowcontrol the send flowcontrol is somehow always on on that port and on the other ports off i dunno why??

Maybe it autosense this send flow control??

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