Cisco Wireless :: High CPU On 2921 With EHWIC Card?
Aug 16, 2012
I am getting the following error message on a Cisco 2921 as a result of which has a there is 99 % CPU util. This router has the following cards installed and 4G WWAN EHWIC is running 15.1(4) M3 image.
EHWIC_CELL_MSG-1-EHWIC_ERROR_EVENTS: eHWIC Error Event: TxCLK PLL lost lock, HWIC slot 3
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Oct 2, 2011
I just got a brand new Cisco 2951 router that has built-in 3 gigabit interfaces cards. We want to add additonal 2 GE EHWIC-1GE-SFP-CU card to it. When it booted up and type show inventory, it did not detect the presence of the card. There was light on at the back of it. I have checked the compatibility on Cisco. The card is compatible with this router. Do we have to install the card with special instructions in order for the router to see it?
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Mar 27, 2013
We're installing a 4G wireless card (EHWIC-4G-LTE-V) in our 2911 for the first time. Upon boot-up, the IOS doesn't recognize the card (the "show inv" command doesn't list it at all). Do I need to give a command or have a certain IOS version in order for it to be recognized?
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Feb 16, 2012
I have installed a EHWIC-4ESG card into my 2911 router running IOS Ver 15.1(4)M2. When I do a show diag, I can see the card, but I get the following line "Could not get card instance pa_bay=0 slot=0." Am I missing a step, do I have change something, is it not compatible (all that I have read, states that is)
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Nov 15, 2012
How I configurate EHWIC-3G-HSPA+7 card on 2911.
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Jul 18, 2012
Any configuration guide for EHWIC-4ESW card. Also the difference in configuration between EHWIC-4ESWG and HWIC-4ESW if any?
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Jun 2, 2012
why I can't use cisco ehwic-3g-hspa-u card in cisco 2800 series and 1841 series router?documentation said that it should work with that devices but when I installed it, it doesn't work even as device i can't see I am using cisco latest ios advance ent. 15.1(4)M4?
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Jun 5, 2012
I have a customer that in the past has been using 6506E chassis with Sup32 and the WS-X6196-21AF cards for their closet.With the End of Sale of this combination and the announced End of Sale of the Sup720-3B announced, this kind of pushes the configuration to a Sup 2T.BUT the SUP 2T does not support these low speed high density cards.
Is there a card coming that will address need? Customer generally has had dual sup32's and 3 to 4 cards of the 96port AF.They stock spares besides haveing smartnet on the boxes or moving to a different platform like the 4510R+ or stacks of switches will mess them up.
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Jun 5, 2011
my office is looking in ordering a HWIC-1FE to supply our cisco 1841 router with a second ISP connection. i wanted to find out if this card support load balancing and fail over? not sure if fail over is the right terminology so ill explain, i need it so that if one ISP connection goes down (as it does often) it fails over to the second ISP.
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Apr 15, 2012
I am writing with regard to a high memory utilization that we have on a pair of line card WS-X6748-GE-TX and WS-X6724-SFP for a VSS 6500. I am enclosing a little part of the "show tech"of this VSS 6500 where is possible to see the high memory utilization of the line cards 1/1, 1/2, 2/1, and 2/2, in despite of having some ports in state connected. In addition of this, the IOS installed on VSS 6500 is s72033-ipservicesk9_wan-vz.122-33.SXI6.bin for checking if there are some bugs affecting the behaviour of the Switch for this case.
System Resources
PFC operating mode: PFC3C
Supervisor redundancy mode: administratively sso, operationally sso
Switching resources: Sw/Mod Part number Series CEF mode
1/1 WS-X6748-GE-TX CEF720 CEF
1/2 WS-X6724-SFP CEF720 CEF
[code]....
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Nov 12, 2011
what's the difference between High-power and High-gain wireless USB adapters.
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Mar 3, 2013
I have an 1921 that I use for L2TPv3 tunnel connection with 2 sides. I need to add others 2 sides and I thought to add an EHWIC-4ESG on my router. Can I configure different xconnections with this module? I would like to configure my router as below: [code]
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May 8, 2012
we set up a 1941 with c1900-universalk9-mz.SPA.151-4.M3.binand tried to bring up EHWIC-3G-HSPA+7 in the vrf. [code]
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Oct 6, 2011
According to specifications fo Cisco ISR G2 2911, it has got 4 EHWIC slots. But in [URL] appears that Cisco2911 supports only 2 HWIC-2FE or only 2 EHWIC-1GE-SFP-CU.
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Apr 21, 2013
I need to make some perfomances (like up/down GRE tunnels) on Cisco ISR 2921 by sending SMS. It could be doing by using 3G modem like a Huawei and a server with some expect/SSH-scripts.
But ISR gen.2 has EHWIC-3G modules, which working with GSM networks and they can send/recieve SMS. I think, that it should be an EEM event or some another way to track comming SMS and process it by TCL-script — get a sender number, SMS body and make usefull perfomances on my router (up/down GRE tunnels in my case).
If I done this trick only by using an ISR router and EHWIC-3G module, it will be much more stable scheme in that we dont have extra components (server, modem) potentially may falls.
Unfortunately, there are too low information about configuring this modules (especially, SMS-part) and I dont find usefull for me.
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Sep 13, 2012
I have two EHWIC VA -DSL cards in a Cisco 2901.
I want each to connect to a separate ISP, one ISP for VOIP, one for Internet. I want to then have a VLAN for VOIP, a VLAN for DATA
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Feb 11, 2011
I am using a Cisco 3925 router and attempting to install an EHWIC card with no luck. The card I am trying to install is EHWIC-D-8ESG.
I have powered down the router, inserted the card into the proper slot and my router doesn't seem to recognize the new card. Is there a command I need to enter to enable the card?
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Jan 3, 2013
if there is a MIB available for the EHWIC-4G-LTE-V card that would allow me to monitor the current RSSI level?
If I issue the command "show cell 0/1/0 radio" on my Cisco2911 router, I get the following info. I'd like to monitor the "Current RSSI" level in Solarwinds.
Router>show cell 0/1/0 radio
Radio power mode = ON
Current RSSI = -67 dBm
LTE Technology Preference = AUTO
LTE Technology Selected = LTE
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Apr 20, 2012
I think I am having problem with my network card I am running windows 7 with Dell wireless 1390 WLAN Mini-Card lots of times the signal is low and I get the error message no internet connectivity or some other error message that I am not being able to connect to the network provided by my wimax modem, Is there any program that I can download to test if there are any errors related to the network card or any way to fix this?
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Oct 13, 2011
Today I've received reports of slow internet access/activity and have noticed myself that it seems a bit slow today. On the dashboard of our asa 5510 the "outside interface" traffic usage is running constantly high. It's at the top of the graph. How can I tell what is causing the spike in utilization. It usually runs at about 1500-2000 Kbps, and now it's up over 10,000.
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Apr 28, 2012
see the message "%ESWGE_ERR-3-NIOSII_UP_FAIL: NIOSII fails on 0/3/0 ehwic slot" in 3925 ? we install a new module EHWIC-4ESG in 3925 with ios 15.2.2(T1). 3925 couldn't find the module but got error message above.
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Nov 26, 2012
We installed a solution with 2 Cisco 2801, BGP multihomed failover.
1) The router which is currently getting all the traffic gets to 55% to 60% of CPU usage when handling 40 SIP/RTP streams . This equals 10Mbit up/10Mbit down and it showed around 5800 packets TX and around 5800 packets RX, with a majority of them CEF switched. As those figures are way less than the performance figures published by Cisco, we wonder if we made any mistake in setting up our router, or if we can do something to improve the router setup.
2) Does it have an impact on router performance if we increase/decrease RTP packet size, thus increasing or decreasing the pps relative to the consumed bandwidth?
3) If it is not possible to improve router configuration, we also wonder about possible replacement units for those routers. Would a 2901 do a good job? By how much would it rise the capacity? What other models would you recommend if we plan to rise the number of concurrent calls by a factor of 4 or even 8 times of what we have now (so up to 48000 pps and 80Mbit).
Here is what we tried:
- ip route-cache same-interface does not seem to improve anything
- ip flow ingress on or off makes no difference
- disabling the inbound ACL on fa0/0 seems to reduce load by 10%, although I don't understand why - a very high percentage is CPU interrupts, and ACLs are process switched, or not?
- we tried following the Cisco guide for high CPU due to high interrupts, with no success
Here are some usage statistics:
The graphs that we plot via SNMP show a propotional growth/increase of CPU and bandwidth (and thus pps) At the highest loads, we had a bit more than 55% CPU utilization with more than 50% interrupt CPU.
CPU utilization for five seconds: 36%/30%; one minute: 30%; five minutes: 30%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
127 13140 954 13773 2.00% 0.29% 0.07% 194 SSH Process
[Code].....
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Dec 3, 2012
I am having problems with these types of 3G cards(EHWIC-3G-HSPA+7) from Cisco.We are using them on ships where we have a SAT connection and the 3G connection. Fail over between the two connections are handled by an IP SLA echo and a track on the cellular interface, towards an public IP where we have configured a static route to via the Cellular interface.
Once configured the connection comes up fine, the VPN tunnels comes up and all is good.But after some time the connection dies, the track goes down because no data goes through.a sh cell 0/0/0 all however say that the profile is active.
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Jan 22, 2012
I am having trouble setting up a EHWIC-VA-DSL-A= card on my cisco 2811 running the following the following:c2800nm-adventerprosek9-mz.151-4.M2.bin and C2800NM_RM2.srec.124-13r.T11
My hardware supplier tells me its the right adsl card (have 1 existing working card not the same) but the card will not detect on the system to be configured.is this the right card? am I missing something?
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Dec 27, 2011
We have the problem that MPLS labeled packets are not being processed on EHWIC-1GE-SFP-CU if L3PDU + Shim-Header exceeds 1500 bytes.When we move the config exactly to the on-board Interface Gi0/0 it works with put any problems. [code]
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Aug 6, 2012
I have an 8 port Gigabit EHWIC in my Cisco 1921 router. A darn nice little switch module.
However, through my research, I am unable to find if I am able to change the way the NIC lights (green LEDs) on each port function. They basically just stay lit 100% non flashing when connected regardless of the port speed and duplex and ignore flashing for any activity.
Is there a deep layer command on these EHWIC cards to make them flash with activity like full standalone switches? Trust me when you have enough switch ports filled up it does make monitoring your networks health and activity by having the port led's respond to traffic flow. At least in my opinion.
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Mar 12, 2013
Can I populate all 4 EHWIC slots in a Cisco 2911 router with VWIC3-4MFT-T1/E1 cards supporting clear channel T1 data traffic?Or do I need a higher performance router inthe 3900 series to do this?The data sheets lead me to the conclusion that I can but I just want to validate this.
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Jul 1, 2012
Can you configure a Cisco 1941 to use an 8 port EHWic module and the 2 onboard GE ports in a single LAN?
I've discovered you can't have the on GE ports associated with a VLan, and I'm when I've previously researched for a solution, bridging was mentioned but I cannot seem to get it to work (or completely understand it)The reason I would like to use all 10 ports on for the LAN is becuase I have 10 devices I need to connect to the 1941?
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Apr 21, 2013
I have one interface setup to a Cisco 2921 router connected to a Cable modem.DHCP is on the 2921.when I connect to the ssid for my guest i'm redirected to the authentification portal 1.1.1.1 .i'm putting valide credential and when pressing the submit button .. it just go anywhere.
I have setup another SSID with a psk and it's working fine.. getting ip and able to browse internet.From what i have read... it's apparently DNS issue on my router.. but what should I check.
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May 29, 2013
I want talk BGP with ISP though 200Mb/s WAN link by using Cisco Router 2921; and in the near future WAN link will be upgraded to 1Gb/s. Does Cisco Router 2921 has enough performance to do this task?
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Jan 19, 2012
I have 2 WLC (5508), i configured the option for enable the high availability, but when the 2 WLC is working the mesh network is unstable, when only wlc is working the mesh is fine.
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Nov 13, 2012
We have a CISCO 2921/K9 which has the securityk9 feature set (reflects Permanent under show version)
I thought that included SSL VPN, but doing a "show license all" it doesn't reflect that:
StoreIndex: 4 Feature: SSL_VPN Version: 1.0
License Type: EvalRightToUse
License State: Active, In Use
[Code].....
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Jun 30, 2011
Using a Cisco 2921 router with an RPS 2300, I came across a table in the 2900 Hardware Installation Guide that I can hardly believe: table 5-3 seems to tell me that in order to back up ONE 2921 with RPS power, I will need an RPS with TWO 750 Watt or TWO 1150 Watt power supplies. Is it really true that I need to throw at least 1500 Watts of backup power at a router that has a main power supply of approx 300 W?
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