Cisco Switching/Routing :: 2811 With AIM-SSL2 Produces 100% CPU Load At Only 4 Mbit
Jan 15, 2012
We are using a few Cisco2811's with the AIM-SSL2 hardware encryption module in a private WAN. This WAN is ethernet based and uses private address space.To add security, we are using cisco group-VPN with AES-128 encryption. The IOS version is advanced ip services.Routing is done with OSPF. According several sources on the cisco site this hardware combination should be able to handle a throughput of 30 -90 Mbit/s.In effect, we see that the CPU uses 60% at 2 Mbit/s load and almost flatlines at 100% on 4 Mbit/s load.With a 'show proc cpu' however the biggest individual process uses only 1,5%.The testscenario at which the 30 - 90 Mbit/s load get reached is a point-to-point Ipsec solution encrypted at 3DES.
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Dec 9, 2010
I have a Cisco 2811 router with two HWIC-ADSL cards configured for dsl connection. I have two lines from the same ISP and i am load balancing between them. I have created a couple of SLA's to check the state of the connections and add to the routing table the two default routes if both are up or any one of them is up.My problem is that when i try to download big files (especially antivirus updates) the download at some point stops (especially the antivirus exits with an error of unreachability). If i shut down one line everything works fine.Could i use something (configuration-wise) to prevent this problem from happening?????Is there any way i can combine the two lines? They are simple ADSL connctions with static ip's.
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Apr 18, 2012
i have a one 2811 router with 2 nos of HWIC-1FE card, and also i have two mpls connection [code] how can i configure it with mpls load balancing ?
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Jun 20, 2012
I use a cisco 2620 voice gateway with a module NM-HDV-2E1-60. Tell me how you look at snmp for Cisco 2620 load E1. For 2811, I found oid 1.3.6.1.4.1.9.10.19.1.1.4
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Apr 24, 2011
2811 router
Cisco IOS Software, 2800 Software (C2800NM-ADVENTERPRISEK9_IVS_LI-M), Version 12.4(24)T4, RELEASE SOFTWARE (fc2)
CPU utilization for five seconds: 82%/73%; one minute: 74%; five minutes: 77% PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process 116 222084 57773 3844 1.83% 1.69% 1.66% 0 IP Input 183 85148 309479 275 1.03%
[Code].....
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Oct 23, 2011
I have four 2811 routers with IOS 12.4(15)T installed. Embedded Event Manager was introduced in IOS 12.3(4)T, why do I not have it?! I've been at this for over a month, when I try to see the command 'event manager' I get Unrecognized command? According to all EEM documentation I can find, this should work on our machines!
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Jan 18, 2012
I have DOCSIS 3.0 modem and a Linksys E1000 wireless router with which I get reults from SpeedTest of 8.6 mps down, 1.57 mps up up from 15 mps service from cable provider. Connected to modem via ethernet cable produces 16.0 speeds. Do I need to upgrade the router or are my settings wrong?
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Jan 4, 2012
i have 2811 router and i am coneccted via concole so i want to copy the 2811 ios to my PC is that possible?
how or give my the right decument to do this.
* idon't want to use TFTP becuse i have no ethernet connection to the router(only concole)
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Oct 31, 2010
[URL]The Cisco 2811 does not support the HWIC-4T1/E1 module. But, I installed HWIC-4T1/E1 on the 2811 running 124-24.T2.
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Dec 13, 2012
This is a 2811 rotuer running Cisco IOS Software, 2800 Software (C2800NM-SPSERVICESK9-M), Version 12.4(24)T3, RELEASE SOFTWARE (fc2) Not sure why this isn't working. Can see it expects to parse the command. Can see this device is vtp server. Can see other vlans were defined here.
Router(config)#vlan ?
accounting VLAN accounting configuration
ifdescr VLAN subinterface ifDescr
Router(config)#vlan 35
^
% Invalid input detected at '^' marker.
[code]....
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Jan 24, 2013
Just double-confirm that 2811 is compatible with HWIC-2FE based on your experience? Which IOS is compatible with HWIC-2FE? [URL]
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Aug 10, 2011
I am facing a problem on a 2811 router. The CPU is remaining around 60% and the router throughput is reaching at most 18 MB while according to the data sheet the 2811 maximum throughput is 61MB. I have checked the output interpreter in order to try and figure out the cause of the high CPU and to determine if it is affecting throughput but there are not processes consuming more than 10%. I have attached the show tech-support and the show process cpu history outputs.
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Jan 19, 2012
I currently have a 2811 and a LAN setup via a sub-interface FA0/1.3 and using a HWIC-AP I have a sub-interface dot11radio 0/1.5. I have them setup to work and surf the inet great, but I have recently been overly annoyed with the fact that the wifi cannot access windows shares on desktops and visa versa with the laptops.
The trick to make this happen is currently they are not on the same subnet. I know the answer is bridging the interfaces but when I do this using the simple commands:
bridge 1 protocol ieee
interface x & y
bridge-group 1
Although what should be simple has failed (good thing I tftp'd my working config). Here is my current configuration.
interface FastEthernet0/1.30
encapsulation dot1Q 30
ip address 192.168.3.1 255.255.255.0
[Code].....
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Feb 17, 2007
Whether Cisco has part number for the large fan in 2811. I know p/n for small fan is already there, but I can't find any for large one( I think it s fan 3).
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Sep 25, 2012
We have a site and on that site we have a server which is down form last two days. However , to manage these devices we are not using any tools. We are not able to find this server that where it is located and on which switch it is connected to.
I want to know that the timer for mac address is 5 minutes and arp timeout is 4 hours . Is there any way to find out the mac address of the server . I feel like this can we done with cef ? Is it true or not I am not sure. I am running 3750 stacks and 2811 routers. 3750 stacks are working as layer 3 devices. They are also running the pretty new IOS 12.2(53)SE.
According to my understanding now a days CEF entry does not expire if we are not using them. They remain in cache as we are running with destination base CEF.
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Apr 25, 2012
I purchased several Cisco 2811 with Advanced IP Services - they are version 12.2.X
The product number looked like this
CISCO2811-HSEC/K9 2811 Bundle w/AIM-VPN/SSL-2,Adv IP Serv,10 SSL lic,128F/512D
I need to upgrade the IOS to version 15.1 - Do I require a license ? What happens if I install it without a License ? Am I entitled to a free license as I am not changing the software type (ADV IP Serv) ?
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Sep 26, 2012
I have a remote site on a 2811 IOS 12.4(15). Interface FA 0/0 faces the ISP and is set for DHCP. What command can I run to see all of the information given out with the IP lease from the ISP? I need to find out what the IP address of the DNS servers are.
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Feb 23, 2013
we have 2811 router with multiple servers connected to it's lan from which there are monitoring servers in between , the router suffers always from high cpu utilization
configuration has alot of ACLs & NAT & IPSEC Tunnel with wan bandwidth 20 M? Is there any method to reduce the high CPU utilization shown below !!
CPU utilization for five seconds: 90%/80%; one minute: 93%; five minutes: 90%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
104 737029848 427864243 1722 5.45% 5.65% 5.65% 0 IP Input
253 63392216 11081854 5720 1.04% 1.15% 1.12% 0 IP NAT Ager
260 82602372 137425723 601 0.64% 0.64% 0.66% 0 PDU DISPATCHER
[code]....
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May 22, 2013
I have a Cisco 2811 Router. I have two VLANS on the router. The first one of course is VLAN 1 and the second one is one that I created from reading everything from this forum.. it is called VLAN 531
On VLAN one I have an IP address of 10.8.1.1 and on VLAN 531 I have an IP Address of 172.16.1.1, now what I can do is this... I can.. from a workstation on the 10.8.0.0 segment, ping 172.16.1.1 and one server on that segment that has an IP address of 172.16.1.50, which is fine, but what I really want to be able to do is ping our email server which is on a 10.21.0.0 segment and I cannot. Any commands on what I would need to do to make this work as I would like the 172.16.0.0 segment to ping any other part of my LAN of my choosing.
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Mar 8, 2013
I have a Cisco 2811 router and i want to experiment on the IOS firewall.The thing is, none of the commands that are proposed in online guides - like ip inspect, ip audit, etc. - seem to be working. I just get "unrecognized command" on a router that is supposed to support such features. I'm wondering if it has something to do with the IOS image.
My show version output is this:
Cisco IOS Software, 2800 Software (C2800NM-SPSERVICESK9-M), Version 12.3(11)T9, RELEASE SOFTWARE (fc3)
Technical Support: [URL]
Copyright (c) 1986-2005 by Cisco Systems, Inc.
Compiled Tue 13-Dec-05 08:24 by ccai
[code]....
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Aug 31, 2012
I have a Cisco 2811 Router with a NM-16ESW card installed. I've connected this to my DSL connecting and I'm trying to build myself a learning lab. From the router I can ping to the internet and back to a test computer I have connected to one of the card's ethernet ports. From the test computer, I can ping the router's WAN interface, but no further. [code]
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Dec 25, 2012
I want to configurate Vpdn protocol PPOE but i can not write protocol ppoe under vpdn group name on cisco 2811. cisco 2811 iso is 12.4 T adventurer and i upgrade it 15.1 advansecure but problem is still.
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Dec 9, 2011
Will 2811 Router with 4 switch port module, How to do dual ISP configuration on this router.
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Aug 29, 2012
I have a Cisco 2811 with fa 0/0 as my bearer, and a switch module for internal clients.
I have an issue with my fa 0/0 flapping, I want to move that ip configuration to fa 0/1
as this is a branch office I am reliant on the bearer port to give me coms so changing the IP addresses is difficult.
Has any one tried this with a TCL script?
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Jul 31, 2012
I have cisco2811 and HWIC-1CE1T1-PRI in the main office are using to connect 10 branches ( 10 ISDN lines) for Data.
I have available channels in the used E1 so I can use them for voice using PVDM2-64 ?
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Apr 14, 2013
Cisco 2811 runs ITP IOS. On that router we run the SMPP service. A client on the network connects to this service, and we need to capture the traffic for debug.
I've tried traffic-export, but I cannot see any outbound traffic. Is there any way to capture the outbound traffic?
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Feb 17, 2012
I was previously using SDM for our Cisco 2811, and this past week installed CISCO Configuration Professional so I could have access to a bandwidth/traffic monitor.
I have successfully started the monitoring service and monitored traffic from within CCP, but it appears that if I turn off the computer I am using to monitor the traffic, it stops collecting data until I start CCP and the monitor up again.
Is there a way (maybe with IOS console commands) that I can have the monitor always running, so I can pull up, say, a week's worth of info at any time? Leaving the computer on all the time is not an option, and currently I have only a few days of data, then a big empty chunk, and then what I have collected since I started it back up today.
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Jan 3, 2012
I have a Cisco 6500 router at my POP site and I have a Cisco 2811 at the tail site. I have to bond 3 city to city T1s to make a 4.5Mg pipe between the 2 ends. How do I configure the routers to make this happen? This is a configuration example for a single T1:
POP end on 6500:
interface Serial1/0/1:0
ip address 10.125.1.1 255.255.255.248
Tail site on 2811:
interface Serial0/2/0
ip address 10.125.1.6 255.255.255.248
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Dec 14, 2011
i have question about router 2811, for now, all HWIC in 2811 is full,
Slot 0 : VIC2-2E/M
Slot 1 : VIC2-2E/M
Slot 2 : WIC-1T=
Slot 3 : HWIC-1FE
But we need add more 2 module VIC3-2E/M. can we use Network Module ? example : add one NM-HD-2V + two VIC3-2E/M ?
Can we do that? and whether it is the same as we use the VIC2-2E / M on HWIC slots
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Feb 4, 2012
i am stuck in a issue! unable to ping the SVI
i am design a small network for a office.
1 router 2811
1 switch 3750-e
Router is connected to the mpls cloud with ospf.
here re the config.
Router#
int fa0/0
ip 10.10.10.1 255.255.255.252
[Code]....
i connect my laptop and give ip 22.0.68.1 255.255.255.0 and default gateway 22.0.68.251but can not ping SVI VLAN 201 (22.0.68.251) ?
and from the SWITCH i can not ping the 20.20.20.2?
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Jun 25, 2012
router 2811 has 2 files ios in flash
Router#sh fla
-#- --length-- -----date/time------ path
1 35202336 Mar 3 2008 16:12:28 +00:00 c2800nm-adventerprisek9-mz.124-8d.bin
...
13 59374168 Mar 5 2012 12:49:22 +00:00 c2800nm-adventerprisek9-mz.124-24.T.bin
151076864 bytes available (105431040 bytes used)
Router#
I try to make it load c2800nm-adventerprisek9-mz.124-24.T.bin
[Code] ...........
I did
verif flash:c2800nm-adventerprisek9-mz.124-24.T.binit is ok
is it corrupted memory? how to fix it?and aslo with System image file is "flash:c2800nm-adventerprisek9-mz.124-8d.bin"it dos not show voice ports for WIC2-FXO in runn conf
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Jul 22, 2009
I have a working BGP session established. With "debug ip bgp events" I see many (2/3 every second) messages like this:
*Jul 23 11:23:48.773: BGP: default originate timer at max delay of 64 sec
*Jul 23 11:23:48.997: BGP: default originate timer at max delay of 64 sec
I can find nothing about this message. IOS version is 12.4(24)T and platform is Cisco 2811
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Jan 14, 2013
I need Know what connection is using on Cisco 2811 router.I have this interface in Cisco 2811, I need Know if this port is connected to Fiber or Copper. I think is copper with RJ45 but I see 100 base TX/FX so this make me doubt about it because TX its for copper link and FX for fiber. [code]
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