[c-nsp] cisco-nsp Digest, Vol 45, Issue 62

Fred Atkinson fatkinson at mishmash.com
Fri Aug 18 08:48:57 EDT 2006


Hi, Jamie, 

     Thanks for checking on me.  

     I'll be able to go out this afternoon.  

     Thanks very much, 



                                       Fred 

--- cisco-nsp-request at puck.nether.net wrote:

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To: cisco-nsp at puck.nether.net
Subject: cisco-nsp Digest, Vol 45, Issue 62
Date: Fri, 18 Aug 2006 08:15:03 -0400

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Today's Topics:

   1. Re: MRTG monitoring of cpu utilization on c12000 linecards
      (Emanuel Popa)
   2. Re: CRC on POS interfaces, 7500 (Kristofer Sigurdsson)
   3. Re: CRC on POS interfaces, 7500 (Kristofer Sigurdsson)
   4. BGP Origin Codes (Ahmad Cheikh Moussa)
   5. Re: BGP Origin Codes (Marek Tyban)
   6. Re: MRTG monitoring of cpu utilization on c12000 linecards (Bas)
   7. IOS SLB on a 3662 (Paul S. Brown)
   8. Re: IOS SLB on a 3662 (Paul Stewart)
   9. Retrieving running config via SNMP (Vincent De Keyzer)
  10. Re: Retrieving running config via SNMP (Eric Kagan)
  11. Re: IOS SLB on a 3662 (Paul S. Brown)
  12. Re: IOS SLB on a 3662 (Paul Stewart)


----------------------------------------------------------------------

Message: 1
Date: Fri, 18 Aug 2006 10:12:56 +0300
From: "Emanuel Popa" <emanuel.popa at gmail.com>
Subject: Re: [c-nsp] MRTG monitoring of cpu utilization on c12000
	linecards
To: "Primoz Jeroncic" <jp at softnet.si>
Cc: Cisco Mailing list <cisco-nsp at puck.nether.net>
Message-ID:
	<4981ce080608180012t121084a5s10d8cdffbde464d7 at mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

CPU:
- 5min: .1.3.6.1.4.1.9.9.109.1.1.1.1.8
- 1min: .1.3.6.1.4.1.9.9.109.1.1.1.1.7
- 5sec: .1.3.6.1.4.1.9.9.109.1.1.1.1.6

MEM:
- used: .1.3.6.1.4.1.9.9.221.1.1.1.1.7
- free: .1.3.6.1.4.1.9.9.221.1.1.1.1.8

useful link: ftp://ftp.cisco.com/pub/mibs

regards,
emanuel popa


On 8/17/06, Primoz Jeroncic <jp at softnet.si> wrote:
> Hi everyone again
>
> I have one more question which came from my previous problem (high
> cpu utilization on STM-1 line card of c12008). To avoid such problems
> in future, I would like to monitor cpu utilization of line cards in
> c12008 with MRTG. I'm pretty sure this is possible, but I can't find
> SNMP string for this anywhere.
>
> Does anyone do this, or has SNMP string for cpu utilization (and
> preferably memory usage too) of line cards? I would really appreciate
> this help.
>
> Have fun,
> Primoz Jeroncic
> Support - IP Connectivity & Routing
> -------------------------------------------------------------------
> Softnet d.o.o.  tel:  +386 1 562 31 40   |
> Borovec 2       fax:  +386 1 562 18 55   |       1 + 1 = 3
> 1236 Trzin      primoz(at)softnet.si     | for larger values of 1
> Slovenija       http://flea.softnet.si/
> -------------------------------------------------------------------
>
>
> _______________________________________________
> 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/
>


------------------------------

Message: 2
Date: Fri, 18 Aug 2006 08:42:01 +0000
From: "Kristofer Sigurdsson" <kristosig at gmail.com>
Subject: Re: [c-nsp] CRC on POS interfaces, 7500
To: bep at whack.org
Cc: cisco-nsp at puck.nether.net
Message-ID:
	<7dea31f60608180142t600002e0ge52c3ed829d2cb33 at mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

>
> > Am I missing something here?  IOS 12.0(24)S6.
> >
>
> According to
>
> http://www.cisco.com/en/US/partner/products/hw/modules/ps2033/products_module_installation_guide_chapter09186a0080129108.html#1028557
>
> "no crc 32"



router(config)#int pos5/0/0
router(config-if)#no crc 32
                                 ^
% Invalid input detected at '^' marker.


Doesn't seem to work...

-Kristo


------------------------------

Message: 3
Date: Fri, 18 Aug 2006 08:43:13 +0000
From: "Kristofer Sigurdsson" <kristosig at gmail.com>
Subject: Re: [c-nsp] CRC on POS interfaces, 7500
To: tony.li at tony.li
Cc: cisco-nsp at puck.nether.net
Message-ID:
	<7dea31f60608180143t1fc17cedp1a51e8542e808538 at mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

2006/8/17, Tony Li <tli at tropos.com>:
>
>
>
> It's far safer to use CRC 32 on both ends.  Is there some reason not to?



Not really - I just want to get this up and running, getting the provider to
change their setting means waiting for them to do it. :-)

-Kristo


------------------------------

Message: 4
Date: Fri, 18 Aug 2006 11:29:41 +0200
From: Ahmad Cheikh Moussa <acm at netuse.de>
Subject: [c-nsp] BGP Origin Codes
To: cisco-nsp at puck.nether.net
Message-ID: <44E58885.80006 at netuse.de>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

Hi!

BGP table version is 16681173, local router ID is 195.244.255.1
Status codes: s suppressed, d damped, h history, * valid, > best, i - 
internal,
               r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete

    Network          Next Hop            Metric LocPrf Weight Path


What means "?" in the BGP output.
I got from a customer routes with this questionmark.

any ideas, what can cause this ?

Regards,
  Ahmad


-- 
Ahmad Cheikh-Moussa
NetUSE AG
Dr.-Hell-Stra?e, 24107 Kiel, Germany
Telefon: +49 431 2390 400 --  Telefax: +49 431 2390 499
Service: Service at NetUSE.DE --  http://NetUSE.DE/




------------------------------

Message: 5
Date: Fri, 18 Aug 2006 11:43:01 +0200 (CEST)
From: Marek Tyban <mt at vol.cz>
Subject: Re: [c-nsp] BGP Origin Codes
To: Ahmad Cheikh Moussa <acm at netuse.de>
Cc: cisco-nsp at puck.nether.net
Message-ID: <20060818114004.Q51257 at k3.vol.cz>
Content-Type: TEXT/PLAIN; charset=X-UNKNOWN


On Fri, 18 Aug 2006, Ahmad Cheikh Moussa wrote:

> Hi!
>
> BGP table version is 16681173, local router ID is 195.244.255.1
> Status codes: s suppressed, d damped, h history, * valid, > best, i -
> internal,
>                r RIB-failure, S Stale
> Origin codes: i - IGP, e - EGP, ? - incomplete
>
>     Network          Next Hop            Metric LocPrf Weight Path
>
>
> What means "?" in the BGP output.
> I got from a customer routes with this questionmark.


The origin of the route is unknown or learned in some other way. An origin
of incomplete occurs when a route is redistributed into BGP.

Regards,
Marek




> any ideas, what can cause this ?
>
> Regards,
>   Ahmad
>
>
> --
> Ahmad Cheikh-Moussa
> NetUSE AG
> Dr.-Hell-Stra?e, 24107 Kiel, Germany
> Telefon: +49 431 2390 400 --  Telefax: +49 431 2390 499
> Service: Service at NetUSE.DE --  http://NetUSE.DE/
>
>
> _______________________________________________
> 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/



------------------------------

Message: 6
Date: Fri, 18 Aug 2006 12:20:04 +0200
From: Bas <kilobit at gmail.com>
Subject: Re: [c-nsp] MRTG monitoring of cpu utilization on c12000
	linecards
To: "Primoz Jeroncic" <jp at softnet.si>
Cc: Cisco Mailing list <cisco-nsp at puck.nether.net>
Message-ID:
	<ba6c08fd0608180320w1980b692ib18fc83bc1f3cce4 at mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

On 8/17/06, Primoz Jeroncic <jp at softnet.si> wrote:

> I have one more question which came from my previous problem (high
> cpu utilization on STM-1 line card of c12008). To avoid such problems
> in future, I would like to monitor cpu utilization of line cards in
> c12008 with MRTG. I'm pretty sure this is possible, but I can't find
> SNMP string for this anywhere.
>
> Does anyone do this, or has SNMP string for cpu utilization (and
> preferably memory usage too) of line cards? I would really appreciate
> this help.
>

Hi,

Per linecard CPU monitoring is tricky.
This is because the SNMP string per liecard changes at every reboot.
(or even a linecard reload)

more info on:
http://www.cisco.com/en/US/tech/tk648/tk362/technologies_tech_note09186a0080094a94.shtml


------------------------------

Message: 7
Date: Fri, 18 Aug 2006 12:12:44 +0100
From: "Paul S. Brown" <paul at geekstuff.tv>
Subject: [c-nsp] IOS SLB on a 3662
To: cisco-nsp at puck.nether.net
Message-ID: <200608181212.44410.paul at geekstuff.tv>
Content-Type: text/plain;  charset="us-ascii"

Does anybody know what the performance limits of a 3662 with regards to SLB 
are?

I basically need to know how many simultaneous TCP (HTTP) sessions it can 
dispatch in NAT mode - I've got a requirement where a 3662 (of which I have a 
few) may be adequate, however I want to try and find out before I need to go 
and buy a CSS at zero notice.

I've had a look at the Cisco site, and their documentation is woefully out of 
date with regards this functionality - only the feature navigator knows the 
3660 can support SLB - the configuration documentation cuts off at 6500/7600 
and 7200.

Thanks

P.


------------------------------

Message: 8
Date: Fri, 18 Aug 2006 08:03:37 -0400
From: "Paul Stewart" <pstewart at nexicomgroup.net>
Subject: Re: [c-nsp] IOS SLB on a 3662
To: "Paul S. Brown" <paul at geekstuff.tv>, <cisco-nsp at puck.nether.net>
Message-ID:
	<114A5765D41EAF468B5D4D6210FC9F78083DC300 at www.exchangemymail.com>
Content-Type: text/plain;	charset="us-ascii"

Any idea how much traffic either in pps or mb/s you were thinking?  How
many users behind it?

I haven't ran a lot of it on a 3662 but if you provide a few numbers I
could provide "best guestimate"..;)

Paul Stewart
Network Administrator
Nexicom Inc.
http://www.nexicom.net/  

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Paul S. Brown
Sent: Friday, August 18, 2006 7:13 AM
To: cisco-nsp at puck.nether.net
Subject: [c-nsp] IOS SLB on a 3662

Does anybody know what the performance limits of a 3662 with regards to
SLB are?

I basically need to know how many simultaneous TCP (HTTP) sessions it
can dispatch in NAT mode - I've got a requirement where a 3662 (of which
I have a
few) may be adequate, however I want to try and find out before I need
to go and buy a CSS at zero notice.

I've had a look at the Cisco site, and their documentation is woefully
out of date with regards this functionality - only the feature navigator
knows the 3660 can support SLB - the configuration documentation cuts
off at 6500/7600 and 7200.

Thanks

P.
_______________________________________________
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/



------------------------------

Message: 9
Date: Fri, 18 Aug 2006 14:04:15 +0200
From: "Vincent De Keyzer" <vincent at dekeyzer.net>
Subject: [c-nsp] Retrieving running config via SNMP
To: <cisco-nsp at puck.nether.net>
Message-ID: <00ba01c6c2be$6d94f050$9b8115ac at osiris.grp>
Content-Type: text/plain;	charset="us-ascii"

Hello,

 

we had a problem this morning where the config of a customer router had not
been saved, and a power outage occurred after which the router rebooted with
an older and incorrect config. Shame on us.

 

What we would like to do now is to write a script that gets running and
startup configs of each device, diffs them, and sends a warning if
differences are seen.

 

We already have a script that gets the running configs via a SNMP-triggered
writenet (enterprises.cisco.local.lsystem.writeNet from OLD-CISCO-SYS-MIB).

 

How do I get the running config with SNMP ? I have found
enterprises.cisco.local.lflash.flashToNet in OLD-CISCO-FLASH-MIB, but it
does not work on my routers:

 

[vdk ~]$ snmpwalk -c private -v 2c router 1.3.6.1.4.1.9.2.10

SNMPv2-SMI::enterprises.9.2.10 = No Such Object available on this agent at
this OID

[vdk ~]$

 

"router" is a 7206VXR running 12.2(25)S4.

 

Anyone?

 

Vincent

 



------------------------------

Message: 10
Date: Fri, 18 Aug 2006 08:10:24 -0400
From: "Eric Kagan" <ekagan at axsne.com>
Subject: Re: [c-nsp] Retrieving running config via SNMP
To: "'Vincent De Keyzer'" <vincent at dekeyzer.net>,
	<cisco-nsp at puck.nether.net>
Message-ID: <01ac01c6c2bf$4baa6c80$750da8c0 at axsdom.local>
Content-Type: text/plain;	charset="us-ascii"

> What we would like to do now is to write a script that gets 
> running and startup configs of each device, diffs them, and 
> sends a warning if differences are seen.
> 
> We already have a script that gets the running configs via a 
> SNMP-triggered writenet 
> (enterprises.cisco.local.lsystem.writeNet from OLD-CISCO-SYS-MIB).
> 
> How do I get the running config with SNMP ? I have found 
> enterprises.cisco.local.lflash.flashToNet in 
> OLD-CISCO-FLASH-MIB, but it does not work on my routers:
> 
> [vdk ~]$ snmpwalk -c private -v 2c router 1.3.6.1.4.1.9.2.10
> 
> SNMPv2-SMI::enterprises.9.2.10 = No Such Object available on 
> this agent at this OID
> 
> [vdk ~]$
> 
> "router" is a 7206VXR running 12.2(25)S4.

If its just this one router download Kiwi Cat tools freeware version and it
does it all for you.

Eric




------------------------------

Message: 11
Date: Fri, 18 Aug 2006 13:13:49 +0100
From: "Paul S. Brown" <paul at geekstuff.tv>
Subject: Re: [c-nsp] IOS SLB on a 3662
To: "Paul Stewart" <pstewart at nexicomgroup.net>
Cc: cisco-nsp at puck.nether.net
Message-ID: <200608181313.49770.paul at geekstuff.tv>
Content-Type: text/plain;  charset="iso-8859-1"

I'd suspect the worst case is 10k concurrent sessions - we're running rather 
lower than that just now.

In terms of PPS, given that all we'll be doing from behind it is HTTP 
redirects, that translates to around 10kpps assuming standard ethernet packet 
sizes. I know this is close to the process switched limit for the 3660 
(12kpps) but I've no idea how that scales against SLB usage.

At the moment we're doing closer to 3k concurrent sessions as a peak.

Paul

On Friday 18 August 2006 13:03, Paul Stewart wrote:
> Any idea how much traffic either in pps or mb/s you were thinking?  How
> many users behind it?
>
> I haven't ran a lot of it on a 3662 but if you provide a few numbers I
> could provide "best guestimate"..;)
>
> Paul Stewart
> Network Administrator
> Nexicom Inc.
> http://www.nexicom.net/
>
> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net
> [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Paul S. Brown
> Sent: Friday, August 18, 2006 7:13 AM
> To: cisco-nsp at puck.nether.net
> Subject: [c-nsp] IOS SLB on a 3662
>
> Does anybody know what the performance limits of a 3662 with regards to
> SLB are?
>
> I basically need to know how many simultaneous TCP (HTTP) sessions it
> can dispatch in NAT mode - I've got a requirement where a 3662 (of which
> I have a
> few) may be adequate, however I want to try and find out before I need
> to go and buy a CSS at zero notice.
>
> I've had a look at the Cisco site, and their documentation is woefully
> out of date with regards this functionality - only the feature navigator
> knows the 3660 can support SLB - the configuration documentation cuts
> off at 6500/7600 and 7200.
>
> Thanks
>
> P.
> _______________________________________________
> 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/


------------------------------

Message: 12
Date: Fri, 18 Aug 2006 08:16:24 -0400
From: "Paul Stewart" <pstewart at nexicomgroup.net>
Subject: Re: [c-nsp] IOS SLB on a 3662
To: "Paul S. Brown" <paul at geekstuff.tv>
Cc: cisco-nsp at puck.nether.net
Message-ID:
	<114A5765D41EAF468B5D4D6210FC9F78083DC308 at www.exchangemymail.com>
Content-Type: text/plain;	charset="us-ascii"

Yeah... I think it'll kill that router... Just my opinion

The only comparitive I can provide is a 3662 I have in production right
now running IOS SLB with NAT and it's only pushing about 3000pps or 12.5
Mb/s and the CPU sits around the 45-55% range.... 

Hope that helps...

Paul Stewart
Network Administrator
Nexicom Inc.
http://www.nexicom.net/ 

-----Original Message-----
From: Paul S. Brown [mailto:paul at geekstuff.tv] 
Sent: Friday, August 18, 2006 8:14 AM
To: Paul Stewart
Cc: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] IOS SLB on a 3662

I'd suspect the worst case is 10k concurrent sessions - we're running
rather lower than that just now.

In terms of PPS, given that all we'll be doing from behind it is HTTP
redirects, that translates to around 10kpps assuming standard ethernet
packet sizes. I know this is close to the process switched limit for the
3660
(12kpps) but I've no idea how that scales against SLB usage.

At the moment we're doing closer to 3k concurrent sessions as a peak.

Paul

On Friday 18 August 2006 13:03, Paul Stewart wrote:
> Any idea how much traffic either in pps or mb/s you were thinking?  
> How many users behind it?
>
> I haven't ran a lot of it on a 3662 but if you provide a few numbers I

> could provide "best guestimate"..;)
>
> Paul Stewart
> Network Administrator
> Nexicom Inc.
> http://www.nexicom.net/
>
> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net 
> [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Paul S. Brown
> Sent: Friday, August 18, 2006 7:13 AM
> To: cisco-nsp at puck.nether.net
> Subject: [c-nsp] IOS SLB on a 3662
>
> Does anybody know what the performance limits of a 3662 with regards 
> to SLB are?
>
> I basically need to know how many simultaneous TCP (HTTP) sessions it 
> can dispatch in NAT mode - I've got a requirement where a 3662 (of 
> which I have a
> few) may be adequate, however I want to try and find out before I need

> to go and buy a CSS at zero notice.
>
> I've had a look at the Cisco site, and their documentation is woefully

> out of date with regards this functionality - only the feature 
> navigator knows the 3660 can support SLB - the configuration 
> documentation cuts off at 6500/7600 and 7200.
>
> Thanks
>
> P.
> _______________________________________________
> 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/



------------------------------

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