3Com SSII roving analysis

Archived from groups: comp.dcom.lans.ethernet, comp.dcom.net-analysis (More info?)

I am having difficulty setting up an analysis port to monitor a
fastethernet port on a 3Com SS II switch. Port 1 is a FE port that is
configured for monitoring. Port 4 is configured as the analysis port.
I am running ethereal on a laptop connected to the analysis port.
Ethereal is monitoring in promiscuous mode. I see incoming broadcast
traffic on port 1 but I never see the traffic generated on either ports
2 or 3 that should be leaving the switch via port 1 to an upstream
switch. I see STP packets coming down the port 1 pipe, probably from
the upstream switch, as well. Are there any gotchas to getting this to
work?

Some pertinent information from the switch:

SuperStack II Switch 3900-36 (rev CA) - System ID a2050b

POV rev 1.06 SysBoot rev 1.08 ExtDiags rev 2.01

Flash Sysboot rev 1.08 Flash ExtDiags rev 2.01

Version 3.0.5-7 - Built 2001-01-30T09:47:19

Current system time: 2004-10-18T07:51:19

System up time: 4 Days 32 Minutes 15 Seconds

Time in Service: 1506 Days

System Name: SuperStack II Switch-A2050B

Chassis/TLA Part Number: 10010696


Product Board Serial Product
Part
Description Rev Number Number
Number
------------------------------------------------------------------------------

10/100BaseTX M/B, 36 RJ45 ports AA 2KSL004465 3C39036
10011085

AP Memory Size : 8 MB

Flash Memory Size : 4 MB

Select menu option (ethernet): det
Select Ethernet ports (1-39|all|?) [4]: 1

rxFrames rxBytes
rxFrameRate
1116622 114325112
2

rxByteRate rxPeakFrameRate
rxPeakByteRate
245 81
113137

noRxBuffers alignmentErrs
fcsErrs
0 0
0

runts fragments
jabbers
0 0
0

oversized rxInternalErrs
rxUnicasts
0 0
111833

rxMulticasts rxMcastsOnly
rxBroadcast
1004789 184082
820707

txFrames txBytes
txFrameRate
40181 3669848
0

txByteRate txPeakFrameRate
txPeakByteRate
txQOverflows excessCollisions

0 0


txInternalErrs carrierSenseErr
txDiscards
0 0
0

txUnicasts txMulticasts
txMcastsOnly
24180 16001
2619

txBroadcasts singleCollisions
multiCollisions
13382 0
0

lateCollisions requestedState

0 enabled


portLabel


portType

10/100BaseT(RJ45)

on-line
enabled

macAddress autoNegMode
autoNegState
00-80-3e-a2-05-0b enable
completed

reqPortMode actualPortMode
reqFlowControl
100full 100full
off

actualFlowControl paceAccess

off disable


Select menu option (ethernet): det 4

rxFrames rxBytes
rxFrameRate
357043 33945610
0

rxByteRate rxPeakFrameRate
rxPeakByteRate
52 2
363

noRxBuffers alignmentErrs
fcsErrs
0 0
0

runts fragments
jabbers
0 0
0

oversized rxInternalErrs
rxUnicasts
0 0
0

rxMulticasts rxMcastsOnly
rxBroadcast
357043 1025
356018

txFrames txBytes
txFrameRate
1064004 104794966
1

txByteRate txPeakFrameRate
txPeakByteRate
txQOverflows excessCollisions

0 0


txInternalErrs carrierSenseErr
txDiscards
0 0
0

txUnicasts txMulticasts
txMcastsOnly
114984 949022
174458

txBroadcasts singleCollisions
multiCollisions
774564 0
0

lateCollisions requestedState

0 enabled


portLabel


portType

10/100BaseT(RJ45)


on-line
enabled

macAddress autoNegMode
autoNegState
00-80-3e-a2-05-0e enable
completed

reqPortMode actualPortMode
reqFlowControl
100full 100full
off

actualFlowControl paceAccess

off disable


Select menu option (analyzer): disp
Ports configured as analyzer ports:

Port Type Address

4 Fast Ethernet 00-80-3e-a2-05-0e


Ports being monitored:

Port Type Analyzer Address

1 Fast Ethernet 00-80-3e-a2-05-0e
TIA

Larry
1 answer Last reply
More about 3com ssii roving analysis
  1. Archived from groups: comp.dcom.lans.ethernet, comp.dcom.net-analysis (More info?)

    -------------------------------------
    gump33lt wrote:


    > I am having difficulty setting up an analysis port to monitor a
    > fastethernet port on a 3Com SS II switch. Port 1 is a FE port that is
    > configured for monitoring. Port 4 is configured as the analysis port.
    > I am running ethereal on a laptop connected to the analysis port.
    > Ethereal is monitoring in promiscuous mode. I see incoming broadcast
    > traffic on port 1 but I never see the traffic generated on either ports
    > 2 or 3 that should be leaving the switch via port 1 to an upstream
    > switch. I see STP packets coming down the port 1 pipe, probably from
    > the upstream switch, as well. Are there any gotchas to getting this to
    > work?

    > Some pertinent information from the switch:

    > SuperStack II Switch 3900-36 (rev CA) - System ID a2050b

    > POV rev 1.06 SysBoot rev 1.08 ExtDiags rev 2.01

    > Flash Sysboot rev 1.08 Flash ExtDiags rev 2.01

    > Version 3.0.5-7 - Built 2001-01-30T09:47:19

    > Current system time: 2004-10-18T07:51:19

    > System up time: 4 Days 32 Minutes 15 Seconds

    > Time in Service: 1506 Days

    > System Name: SuperStack II Switch-A2050B

    > Chassis/TLA Part Number: 10010696


    > Product Board Serial Product
    > Part
    > Description Rev Number Number
    > Number
    >
    ------------------------------------------------------------------------------

    > 10/100BaseTX M/B, 36 RJ45 ports AA 2KSL004465 3C39036
    > 10011085

    > AP Memory Size : 8 MB

    > Flash Memory Size : 4 MB

    > Select menu option (ethernet): det
    > Select Ethernet ports (1-39|all|?) [4]: 1

    > rxFrames rxBytes
    > rxFrameRate
    > 1116622 114325112
    > 2

    > rxByteRate rxPeakFrameRate
    > rxPeakByteRate
    > 245 81
    > 113137

    > noRxBuffers alignmentErrs
    > fcsErrs
    > 0 0
    > 0

    > runts fragments
    > jabbers
    > 0 0
    > 0

    > oversized rxInternalErrs
    > rxUnicasts
    > 0 0
    > 111833

    > rxMulticasts rxMcastsOnly
    > rxBroadcast
    > 1004789 184082
    > 820707

    > txFrames txBytes
    > txFrameRate
    > 40181 3669848
    > 0

    > txByteRate txPeakFrameRate
    > txPeakByteRate
    > txQOverflows excessCollisions

    > 0 0


    > txInternalErrs carrierSenseErr
    > txDiscards
    > 0 0
    > 0

    > txUnicasts txMulticasts
    > txMcastsOnly
    > 24180 16001
    > 2619

    > txBroadcasts singleCollisions
    > multiCollisions
    > 13382 0
    > 0

    > lateCollisions requestedState

    > 0 enabled


    > portLabel


    > portType

    > 10/100BaseT(RJ45)

    > on-line
    > enabled

    > macAddress autoNegMode
    > autoNegState
    > 00-80-3e-a2-05-0b enable
    > completed

    > reqPortMode actualPortMode
    > reqFlowControl
    > 100full 100full
    > off

    > actualFlowControl paceAccess

    > off disable


    > Select menu option (ethernet): det 4

    > rxFrames rxBytes
    > rxFrameRate
    > 357043 33945610
    > 0

    > rxByteRate rxPeakFrameRate
    > rxPeakByteRate
    > 52 2
    > 363

    > noRxBuffers alignmentErrs
    > fcsErrs
    > 0 0
    > 0

    > runts fragments
    > jabbers
    > 0 0
    > 0

    > oversized rxInternalErrs
    > rxUnicasts
    > 0 0
    > 0

    > rxMulticasts rxMcastsOnly
    > rxBroadcast
    > 357043 1025
    > 356018

    > txFrames txBytes
    > txFrameRate
    > 1064004 104794966
    > 1

    > txByteRate txPeakFrameRate
    > txPeakByteRate
    > txQOverflows excessCollisions

    > 0 0


    > txInternalErrs carrierSenseErr
    > txDiscards
    > 0 0
    > 0

    > txUnicasts txMulticasts
    > txMcastsOnly
    > 114984 949022
    > 174458

    > txBroadcasts singleCollisions
    > multiCollisions
    > 774564 0
    > 0

    > lateCollisions requestedState

    > 0 enabled


    > portLabel


    > portType

    > 10/100BaseT(RJ45)


    > on-line
    > enabled

    > macAddress autoNegMode
    > autoNegState
    > 00-80-3e-a2-05-0e enable
    > completed

    > reqPortMode actualPortMode
    > reqFlowControl
    > 100full 100full
    > off

    > actualFlowControl paceAccess

    > off disable


    > Select menu option (analyzer): disp
    > Ports configured as analyzer ports:

    > Port Type Address

    > 4 Fast Ethernet 00-80-3e-a2-05-0e


    > Ports being monitored:

    > Port Type Analyzer Address

    > 1 Fast Ethernet 00-80-3e-a2-05-0e
    > TIA

    > Larry


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