Lukas,
thanks! Once I disabled the checksum calculation for GRE header and
payload, the process switched traffic dropped from ~600 pps in both
directions on Fa0/0 and Fa0/1 to 7-8 pps. Rest of the traffic is
CEF-switched. CPU usage is around 10%.
Martin
On 11/28/14, Lukas Tribus
Hi,
I have a Cisco 2811(IOS 12.4(11)XW7) router which has high(60 - 100%)
CPU utilization because of IP Input(takes care of IP packets which
are process-switched) process. CPU utilization has a clear correlation
with amount of packets processed. While this router has CEF
enabled(ip cef in global
interface Tunnel0
bandwidth 1
ip unnumbered FastEthernet0/0
tunnel source FastEthernet0/1
tunnel destination 10.10.10.195
tunnel key 10213
tunnel checksum
tunnel path-mtu-discovery
end
Ass five(Tu0 - Tu5) GRE tunnels configured to this router have similar
configuration with
-
From: Simon Lockhart [mailto:si...@slimey.org]
Sent: Sunday, March 24, 2013 2:14 PM
To: Samir Abidali
Cc: cisco-nsp@puck.nether.net
Subject: Re: [c-nsp] High CPU utilization on sup720 with GRE
On Sun Mar 24, 2013 at 02:06:09PM +0300, Samir Abidali wrote:
Can you somebody help me in understanding
: [c-nsp] High CPU utilization on sup720 with GRE
On Sun Mar 24, 2013 at 02:06:09PM +0300, Samir Abidali wrote:
Can you somebody help me in understanding whey GRE tunnel Cisco
WS-SUP720-3BXL , with two GRE tunnel configured will spike the cpur to
99%
when the traffic goes beyond 30mbps
Also look at turning on mls mpls tunnel-recirc
This will work around a hardware bug that could black hole traffic in some
cases. Use this even without mpls.
Jared Mauch
On Mar 24, 2013, at 7:06 AM, Samir Abidali samir.abid...@gorannet.net wrote:
Hi All
Can you somebody help me in
Hi All
Can you somebody help me in understanding whey GRE tunnel Cisco WS-SUP720-3BXL
, with two GRE tunnel configured will spike the cpur to 99% when the traffic
goes beyond 30mbps.
According to documentation, the GRE is hardware accelerated, please note that
the two tunnel interface has
On Sun Mar 24, 2013 at 02:06:09PM +0300, Samir Abidali wrote:
Can you somebody help me in understanding whey GRE tunnel Cisco
WS-SUP720-3BXL , with two GRE tunnel configured will spike the cpur to 99%
when the traffic goes beyond 30mbps.
According to documentation, the GRE is hardware
Ah OK, you already tried that then. I was referencing:
http://www.cisco.com/en/US/products/hw/routers/ps359/products_tech_note09186a00801c2ae4.shtml
/bs
On Tue, Jan 13, 2009 at 8:07 PM, Jeffrey Ollie j...@ocjtech.us wrote:
On Tue, Jan 13, 2009 at 8:44 PM, Brian Spade bitkr...@gmail.com
Several times in the past month we have had high CPU utilization
caused by the TPLUS process, which I think is caused by stuck CLI
users. As far as I can tell the only way to remedy the problem is to
reload the switch and/or router (this affects many different systems
with very different software
Jeffrey Ollie wrote:
Several times in the past month we have had high CPU utilization
caused by the TPLUS process, which I think is caused by stuck CLI
users. As far as I can tell the only way to remedy the problem is to
reload the switch and/or router (this affects many different systems
with
Jeffrey Ollie wrote:
That should boot of idle users automatically.
Unfortunately it does not.
It sounds to me like a good time to call TAC. When the feature doesn't
work as it's supposed to then it's time to involve TAC. I'm getting
ready to do the same thing with 2 such features right
On Tue, Jan 13, 2009 at 2:37 PM, Justin Shore jus...@justinshore.com wrote:
Jeffrey Ollie wrote:
That should boot of idle users automatically.
Unfortunately it does not.
It sounds to me like a good time to call TAC. When the feature doesn't work
as it's supposed to then it's time to
Try clearing the TCP process on the router.
On Tue, Jan 13, 2009 at 1:02 PM, Jeffrey Ollie j...@ocjtech.us wrote:
On Tue, Jan 13, 2009 at 2:37 PM, Justin Shore jus...@justinshore.com
wrote:
Jeffrey Ollie wrote:
That should boot of idle users automatically.
Unfortunately it does not.
Dear All,
I have got a cisco 2800 router. its CPU is continously monitored to be 99%.
it has got only two fast ethernet ports and traffic on these ports reaches
to maximum. when you analyze the traffic goin thru these ports, Max is IP
traffic.(98%). i tried fast switching on these ports using ip
, 27 September 2007 4:22 PM
To: Cisco Mailing list
Subject: [c-nsp] High CPU Utilization
Dear All,
I have got a cisco 2800 router. its CPU is continously monitored to be
99%.
it has got only two fast ethernet ports and traffic on these ports
reaches to maximum. when you analyze the traffic goin thru
It might be worth pasting the output of:
router#show int
router#show proc cpu sorted (only need first 10 lines or so)
and
router#show run int fa0/0
router#show run int fa0/1
when it is running at 99%, to this list as well. You may well be running the
router beyond its capabilities, but it
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