Mailing List Archive: sflow problem

sflow problem

Dec 27, 2005, 10:37 PM

Post #1 of 3 (3688 views)

Hi,
I have a question about sFlow.
sFlow is enabled on E300, but there is no "sFlow" word in the output of
"show inventory" command.
Is this a normal behavior?

- now, E300 seems to have stopped sending flow samples to the collector, it
reports counter samples only.
(At first, I could see flow data in the sFlow datagram, but ,,,)
- e.g. sFlow is enabled on gi0/47, and there is enough traffic to sample on
that interface.
But E300 says "0" samples rcvd from h/w.

TIA
keio

[outputs]

e300#show inventory
Chassis Type : E300
Chassis Mode : TeraScale
Software Version : 6.2.1.3

:
<snip>
:

Software Protocol Configured
--------------------------------------------------------------
MSTP
NTP
OSPF
SNMP
Spanning-Tree

e300#

e300#show sflow
sFlow services are enabled
Global default sampling rate: 256
Global default counter polling interval: 20
1 collectors configured
Collector IP addr: 192.168.1.2, Agent IP addr: 192.168.2.2, UDP port: 6343
9410 UDP packets exported
~~|~
+---<< This counter increases. >>

0 UDP packets dropped
1141 sFlow samples collected
~~|~
+---<< These counters stopped increasing without my knowledge. >>
|
351 sFlow samples dropped due to sub-sampling
~~~
Linecard 0 Port set 0 H/W sampling rate 256
Gi 0/47: configured rate 256, actual rate 256, sub-sampling rate 1

e300#show sflow interface gigabitethernet 0/47
Gi 0/47
Configured sampling rate :256
Actual sampling rate :256
Sub-sampling rate :1
Counter polling interval :20
Samples rcvd from h/w :0
|
+--- << This counter does not increase.
>>

Samples dropped for sub-sampling :0

e300#show int gi0/47
GigabitEthernet 0/47 is up, line protocol is up
:
<snip>
:
Rate info (interval 299 seconds):
Input 01.47 Mbits/sec, 827 packets/sec, 1.61% of line-rate
Output 06.40 Mbits/sec, 992 packets/sec, 6.55% of line-rate
Time since last interface status change: 6d6h54m

e300#sh ru
:
interface GigabitEthernet 0/47
no ip address
switchport
speed 100
no negotiation auto
sflow enable
no shutdown
:
sflow enable
sflow collector 192.168.1.2 agent-addr 192.168.2.2
sflow sample-rate 256
:

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sflow problem [ In reply to ]

ron.nsp at force10networks

Jan 3, 2006, 5:49 PM

Post #2 of 3 (3546 views)

Permalink

Keio-san,

The absence of 'sFlow' in 'show inventory' is due to PR60450, which will
be fixed in an upcoming release.

Regarding the other issue with not sending sFlow samples, please open a
case with either your reseller or Force10 TAC so we can troubleshoot the
issue.

Thanks.
-Ron

o k wrote:
>
> Hi,
> I have a question about sFlow.
> sFlow is enabled on E300, but there is no "sFlow" word in the output of
> "show inventory" command.
> Is this a normal behavior?
>
> - now, E300 seems to have stopped sending flow samples to the
> collector, it
> reports counter samples only.
> (At first, I could see flow data in the sFlow datagram, but ,,,)
> - e.g. sFlow is enabled on gi0/47, and there is enough traffic to
> sample on
> that interface.
> But E300 says "0" samples rcvd from h/w.
>
> TIA
> keio
>
> [outputs]
>
> e300#show inventory
> Chassis Type : E300
> Chassis Mode : TeraScale
> Software Version : 6.2.1.3
>
> :
> <snip>
> :
>
>
> Software Protocol Configured
> --------------------------------------------------------------
> MSTP
> NTP
> OSPF
> SNMP
> Spanning-Tree
>
> e300#
>
>
>
> e300#show sflow
> sFlow services are enabled
> Global default sampling rate: 256
> Global default counter polling interval: 20
> 1 collectors configured
> Collector IP addr: 192.168.1.2, Agent IP addr: 192.168.2.2, UDP port:
> 6343
> 9410 UDP packets exported
> ~~|~
> +---<< This counter increases. >>
>
> 0 UDP packets dropped
> 1141 sFlow samples collected
> ~~|~
> +---<< These counters stopped increasing without my knowledge. >>
> |
> 351 sFlow samples dropped due to sub-sampling
> ~~~
> Linecard 0 Port set 0 H/W sampling rate 256
> Gi 0/47: configured rate 256, actual rate 256, sub-sampling rate 1
>
>
>
> e300#show sflow interface gigabitethernet 0/47
> Gi 0/47
> Configured sampling rate :256
> Actual sampling rate :256
> Sub-sampling rate :1
> Counter polling interval :20
> Samples rcvd from h/w :0
> |
> +--- << This counter does not increase.
> >>
>
> Samples dropped for sub-sampling :0
>
>
> e300#show int gi0/47
> GigabitEthernet 0/47 is up, line protocol is up
> :
> <snip>
> :
> Rate info (interval 299 seconds):
> Input 01.47 Mbits/sec, 827 packets/sec, 1.61% of line-rate
> Output 06.40 Mbits/sec, 992 packets/sec, 6.55% of line-rate
> Time since last interface status change: 6d6h54m
>
>
> e300#sh ru
> :
> interface GigabitEthernet 0/47
> no ip address
> switchport
> speed 100
> no negotiation auto
> sflow enable
> no shutdown
> :
> sflow enable
> sflow collector 192.168.1.2 agent-addr 192.168.2.2
> sflow sample-rate 256
> :
>
> _________________________________________________________________
> ??????????????????MSN Hotmail?
> http://promotion.msn.co.jp/hotmail/
>
> _______________________________________________
> force10-nsp mailing list
> force10-nsp at puck.nether.net
> https://puck.nether.net/mailman/listinfo/force10-nsp
>

sflow problem [ In reply to ]

fungk124_2hot at hotmail

Jan 5, 2006, 5:38 AM

Post #3 of 3 (3536 views)

Permalink

Ron-san,

Thanks a lot. I contacted our reseller.

Keio

>From: Ron Lewkiewicz <ron.nsp at force10networks.com>
>Reply-To: ron.nsp at force10networks.com
>To: o k <fungk124_2hot at hotmail.co.jp>
>CC: force10-nsp at puck.nether.net
>Subject: Re: [F10-nsp] sflow problem
>Date: Tue, 03 Jan 2006 14:44:59 -0800
>
>Keio-san,
>
>The absence of 'sFlow' in 'show inventory' is due to PR60450, which will
>be fixed in an upcoming release.
>
>Regarding the other issue with not sending sFlow samples, please open a
>case with either your reseller or Force10 TAC so we can troubleshoot the
>issue.
>
>Thanks.
>-Ron
>
>
>o k wrote:
> >
> > Hi,
> > I have a question about sFlow.
> > sFlow is enabled on E300, but there is no "sFlow" word in the output of
> > "show inventory" command.
> > Is this a normal behavior?
> >
> > - now, E300 seems to have stopped sending flow samples to the
> > collector, it
> > reports counter samples only.
> > (At first, I could see flow data in the sFlow datagram, but ,,,)
> > - e.g. sFlow is enabled on gi0/47, and there is enough traffic to
> > sample on
> > that interface.
> > But E300 says "0" samples rcvd from h/w.
> >
> > TIA
> > keio
> >
> > [outputs]
> >
> > e300#show inventory
> > Chassis Type : E300
> > Chassis Mode : TeraScale
> > Software Version : 6.2.1.3
> >
> > :
> > <snip>
> > :
> >
> >
> > Software Protocol Configured
> > --------------------------------------------------------------
> > MSTP
> > NTP
> > OSPF
> > SNMP
> > Spanning-Tree
> >
> > e300#
> >
> >
> >
> > e300#show sflow
> > sFlow services are enabled
> > Global default sampling rate: 256
> > Global default counter polling interval: 20
> > 1 collectors configured
> > Collector IP addr: 192.168.1.2, Agent IP addr: 192.168.2.2, UDP port:
> > 6343
> > 9410 UDP packets exported
> > ~~|~
> > +---<< This counter increases. >>
> >
> > 0 UDP packets dropped
> > 1141 sFlow samples collected
> > ~~|~
> > +---<< These counters stopped increasing without my knowledge. >>
> > |
> > 351 sFlow samples dropped due to sub-sampling
> > ~~~
> > Linecard 0 Port set 0 H/W sampling rate 256
> > Gi 0/47: configured rate 256, actual rate 256, sub-sampling rate 1
> >
> >
> >
> > e300#show sflow interface gigabitethernet 0/47
> > Gi 0/47
> > Configured sampling rate :256
> > Actual sampling rate :256
> > Sub-sampling rate :1
> > Counter polling interval :20
> > Samples rcvd from h/w :0
> > |
> > +--- << This counter does not increase.
> > >>
> >
> > Samples dropped for sub-sampling :0
> >
> >
> > e300#show int gi0/47
> > GigabitEthernet 0/47 is up, line protocol is up
> > :
> > <snip>
> > :
> > Rate info (interval 299 seconds):
> > Input 01.47 Mbits/sec, 827 packets/sec, 1.61% of line-rate
> > Output 06.40 Mbits/sec, 992 packets/sec, 6.55% of line-rate
> > Time since last interface status change: 6d6h54m
> >
> >
> > e300#sh ru
> > :
> > interface GigabitEthernet 0/47
> > no ip address
> > switchport
> > speed 100
> > no negotiation auto
> > sflow enable
> > no shutdown
> > :
> > sflow enable
> > sflow collector 192.168.1.2 agent-addr 192.168.2.2
> > sflow sample-rate 256
> > :
> >
> > _________________________________________________________________
> > ??????????????????MSN Hotmail?
> > http://promotion.msn.co.jp/hotmail/
> >
> > _______________________________________________
> > force10-nsp mailing list
> > force10-nsp at puck.nether.net
> > https://puck.nether.net/mailman/listinfo/force10-nsp
> >

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